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Skills: linux cloud sysadmin

(OASE01_22 - Germany / Italy / Spain / France/ Finland / Netherlands )
As a Linux Cloud Engineer for Europe you will make the difference!
As linux administrator, you can work from any City in Europe, preferably near one of our offices in Hamburg, Bremen, Dortmund, Olpe, The Hague or Espoo.

This position will support our SaaS email platform, providing service to large customers for tens of millions of end users. Core competencies required include automated deployment, virtualization and mail protocols. You will be expected to provide quick resolution of difficult technical problems and we are asking you to share your major contributions regarding technical architecture, documentation and systems project management. The close cooperation between you and the Services and Engineering teams in the rest of the larger Open-Xchange organization, means growth opportunities abound inside and outside the team. In other words, this position is a great opportunity to build a career track.

The job in bullet points

  • Server deployment, configuration and management using Kubernetes, Terraform, Chef and Ansible
  • Deployment automation and tooling
  • Monitor and analyze system metrics
  • Collaborate with global operations teams
  • Participate in a on-call rotation
  • Assist with security audit and compliance tasks
  • Document architecture and essential function methodologies
  • Some domestic and international travel will be required

Your background

  • Bachelor’s degree in a related field or 5+ years of experience working with Linux
  • Solid understanding of networking concepts: TCP, IP, routing, firewalls, load balancers
  • Experience with cloud infrastructure technologies, container orchestration and CI/CD Pipelines
  • Familiarity with Dovecot, LDAP, Galera, Cassandra
  • Experience with object storage platforms (Scality, Ceph, SWIFT)
  • Experience with logging technologies such as Graylog, ELK, or Splunk
  • Interest in learning new technologies and working with proof of concepts to promote new technologies
  • DevOps Mindset
  • Excellent written and verbal communication skills; willingness to present technical information to a group

Our offer to you

  • Working on a modern cloud software in an international team
  • Wide scope to develop your own ideas and projects
  • Flexible hours that match well with combining responsibilities of home and family with work
  • The most current and jazzy equipment
  • A culture of open and frequent feedback
  • Hackathons, Workshops and Team events
  • Continuous personal development & training
  • A company pension scheme
  • Language courses (e.g. German, English)
  • Flat hierarchies combined with an "Open Door" policy
  • Further country related benefits (e.g. company sports)

Who we are We are a hidden champion. When it comes to open source communication, office productivity and DNS-based security software and services, we are one of the leading players out there. Our 250+ employees around the globe are the reason, why our key products – OX Cloud, Dovecot, and PowerDNS – are used by more than 200 million people for their private and business communications via partners such as Deutsche Telekom, GoDaddy, Strato, Orange, Comcast, or web.com.
For further questions, please contact Kerstin Florath via recruiting@open-xchange.com.



Job Benefits:

  • Homeoffice
  • Flat hierarchies
  • Flexible working times
  • Top notch equipment
  • Work-Live-Balance
  • Culture-Mixed
  • Company Pension
  • Company Health Management

Time zone: (GMT+01:00) Berlin

Skills: java mysql docker sql sysadmin

(PSES01_22 - Germany / Homeoffice)

The job in a nutshell

As a Java Middleware Developer, you will join our Engineering Services team in Europe and work on customer facing implementations and integrations that are based on OX App Suite, a modular platform designed to deliver a wide range of cloud-based services for telcos, hosters, and other providers. As a member of our innovative team, you will have the unique and rewarding opportunity to be part of new and large scaling projects and shape the way customers get their needs fulfilled.

The job in bullet points

  • Design and develop high-volume, low-latency custom solutions for mission-critical systems, delivering high-availability and performance
  • Complete applications development by coordinating requirements, schedules, and activities; contributing to team
  • Web development on the middleware with the following tech stack: Java 8, Junit, OSGi, Linux, Docker, Vagrant, Apache Kafka, MySQL, Cassandra, Micronaut, ...
  • Analysis of technical problems and communication with our customers
  • Strong focus on customer relationships and service deliveries are part of your daily work
  • Collaborate cross-functionally with team members, project managers and other engineers in a self-organized way to achieve elegant and maintainable solutions.
  • Technical support of our Sales-Engineering team to find ideal solutions for our customer base

Your background

  • BS/MS degree in Computer Science, Engineering or a related subject
  • Ideally 4-5 years of hands-on Java Software Development experience
  • Object Oriented analysis and design using common design patterns
  • Understanding of Relational Databases and SQL (MySQL, Galera)
  • Structured, self-reliant and reliable way of working
  • Team and communication skills, determination, good abstraction skills
  • Strong customer orientation and communication skills that allow you to inform, help and advice customers clearly and to liaise effectively with other professionals to understand exactly what customers require
  • Good or very good English communication skills

We would be delighted about additional knowledge like

  • Experience constructing RESTful endpoints for UI consumption and knowledge of Linux and Internet Services like Apache
  • Experience with advanced architectural and design patterns such as Dependency Injection, Test Driven Development, Behaviour Driven Development
  • Experience with container platforms and container orchestration, namely Docker and Kubernetes
  • Familiarity with Gitlab
  • Good knowledge of build tools, automation and CI/CD

Our offer to you

  • Working on a modern cloud software in an international team
  • Wide scope to develop your own ideas and projects
  • Flexible hours that match well with combining responsibilities of home and family with work
  • The most current and jazzy equipment
  • A culture of open and frequent feedback
  • Hackathons, Workshops and Team events
  • Continuous personal development & training
  • Language courses (e.g. German, English)
  • Company sports - entry to various gyms and swimming pools
  • A company pension scheme
  • Flat hierarchies combined with an "Open Door" policy

Who we are

We are a hidden champion. When it comes to open source communication, office productivity and DNS-based security software and services, we are one of the leading players out there. Our 250+ employees around the globe are the reason, why our key products – OX Cloud, Dovecot, and PowerDNS – are used by more than 200 million people for their private and business communications via partners such as Deutsche Telekom, GoDaddy, Strato, Orange, Comcast, or web.com.
For further questions, please contact Kerstin Florath via recruiting@open-xchange.com.



Job Benefits:

  • Homeoffice
  • Flat hierarchies
  • Flexible working times
  • Top notch equipment
  • Work-Live-Balance
  • Culture-Mixed
  • Company Pension
  • Company Health Management

Time zone: (GMT+01:00) Berlin

Skills: c++ python lua go sysadmin
(PDNS03_22 - Netherlands / Germany / Italy / Spain / France / Finland )
The job in a nutshell

We are the PowerDNS team and we are looking for a new team member to enrich our team on a full or part time basis. Having very flexible working hours and places which can be discussed and adapted according to your needs, we are currently looking for an experienced developer with a particular affinity for C++.

The Open-Source DNS solutions (Recursor, DNSdist & Authoritative Server) we build and maintain are all C++-based, and as a Software Developer for PowerDNS you will use your knowledge and experience with C++ and DNS to contribute to these solutions. The PowerDNS main office is in The Hague, but you are free to work from home in The Netherlands or one of the other European countries where Open-Xchange has entities.

The job in bullet points
  • Contribute to the development of PowerDNS Recursor, DNSdist and PowerDNS Authoritative Server.
  • Design and implement smart solutions to consistency and distribution problems
  • Not doing anything twice by automating everything
  • Support our Sales Engineering and Support teams with technical questions or issues from customers
  • Continuously improve yourself and the products by investigating alternatives and technologies
Your background
  • Software development experience using C++ (Lua, Golang, or Python are a plus)
  • Ability to cooperatively establish requirements, design and implement complex systems
  • Knowledge of and experience with networking protocols like TCP, UDP, IPv4, IPv6, and especially DNS
  • Affinity with CI/CD workflows and tooling
  • Troubleshooting skills that go from code to systems to network and everything in between
  • Good verbal and written communication skills in English
Our offer to you
  • Working on a modern cloud software in an international team
  • Wide scope to develop your own ideas and projects
  • Flexible hours that match well with combining responsibilities of home and family with work
  • The most current and jazzy equipment
  • A culture of open and frequent feedback
  • Workshops and Team events
  • Continuous personal development & training
  • A company pension scheme
  • Language courses (e.g. German, English)
  • Flat hierarchies combined with an "Open Door" policy
  • Further country related benefits (e.g. company sports)
Who we are We are a hidden champion. When it comes to open source communication, office productivity and DNS-based security software and services, we are one of the leading players out there. Our 250+ employees around the globe are the reason, why our key products – OX Cloud, Dovecot, and PowerDNS – are used by more than 200 million people for their private and business communications via partners such as Deutsche Telekom, GoDaddy, Strato, Orange, Comcast, or web.com.
For further questions, please contact Kerstin Florath via recruiting@open-xchange.com.

Job Benefits:

  • Homeoffice
  • Flat hierarchies
  • Flexible working times
  • Top notch equipment
  • Work-Live-Balance
  • Culture-Mixed
  • Company Pension
  • Company Health Management

Time zone: (GMT+01:00) Berlin

Skills: cloud python c++ go lua sysadmin

(PDNS02_22 - Netherlands / Germany / Italy / Spain / France / Finland )


The job in a nutshell

We are the PowerDNS team, and we are looking for an experienced developer with a particular affinity for Golang. Next to the C++-based Open-Source DNS solutions we build and maintain, we also have a suite of complimentary Golang-based closed-source solutions and modules, such as a control plane for distributed Authoritative DNS, a DNS-filtering solution, and a DNS-orchestration solution. As a Software Developer for PowerDNS you will use your knowledge and experience with Golang and DNS to contribute to these solutions and modules. The PowerDNS main office is in The Hague, but you are free to work from home in The Netherlands or one of the other European countries where Open-Xchange has entities. The job in bulletpoints

  • Contribute to the development of various Golang-based DNS solutions and software modules
  • Design and implement smart solutions to consistency and distribution problems
  • Not doing anything twice by automating everything
  • Support our Sales Engineering and Support teams with technical questions or issues from customers
  • Continuously improve yourself and the products by investigating alternatives and technologies

Your background

  • Software development experience using Golang (C++, Python, or Lua are a plus, as is any front-end experience)
  • Ability to cooperatively establish requirements, design and implement complex systems
  • Knowledge of and experience with networking protocols like TCP, UDP, IPv4, IPv6, and especially DNS
  • Affinity with CI/CD workflows and tooling
  • Knowledge of and experience with application development and deployment in Kubernetes environments; familiar with Helm, Operators, CRDs, CNI, CRI, etc.
  • Troubleshooting skills that go from code to systems to network and everything in between
  • Good verbal and written communication skills in English

Our offer to you

  • Working on a modern cloud software in an international team
  • Wide scope to develop your own ideas and projects
  • Flexible working hours and the ability to work from home
  • A salary corresponding to the current benchmark
  • The most current and jazzy equipment
  • A culture of open and frequent feedback
  • Workshops and Team events
  • Continuous personal development & training
  • A company pension scheme
  • Flat hierarchies combined with an "Open Door" policy
  • Further country related benefits (e.g. company sports)

Who we are
We are a hidden champion. When it comes to open source communication, office productivity and DNS-based security software and services, we are one of the leading players out there. Our 250+ employees around the globe are the reason, why our key products – OX Cloud, Dovecot, and PowerDNS – are used by more than 200 million people for their private and business communications via partners such as Deutsche Telekom, GoDaddy, Strato, Orange, Comcast, or web.com.
For further questions, please contact Kerstin Florath via recruiting@open-xchange.com.



Job Benefits:

  • Homeoffice
  • Flat hierarchies
  • Flexible working times
  • Top notch equipment
  • Work-Live-Balance
  • Culture-Mixed
  • Company Pension
  • Company Health Management

Time zone: (GMT+01:00) Berlin

Skills: linux sysadmin
(SUU01_21 - USA)
The job in a nutshell As a Software Analyst at Open-Xchange you will join our growing, international support team and work closely with Development, Operations and Professional Services Teams.

OX believe in hiring talent and training for skills. We think Support is a great step into a promising career. We are specifically looking for employees willing to learn quickly while delivering great support and service. The close cooperation between the Support department and the sales, services and development teams in the rest of the larger Open-Xchange organization, means growth opportunities abound inside and outside the team. In other words, this position is a great opportunity for your personal development. The job in bullet points
  • Incident and Problem Management for customers' and OX’s services
  • System diagnostics and analysis of „million user“ environments
  • Investigate and reproduce complex custom issues, test solutions, help implement fixes
  • Monitoring Service Level Agreements (SLAs) of Incident and Problem Tickets
  • 2nd and 3rd Level Support of Open-Xchange technologies for our customers
  • Working along and within several ITIL process implementations
  • Customer communication and managing (technical) relationship
  • Work closely with development, sales, and product management teams
Your background
  • Minimum 5 years of experience in system management, system administration or related position
  • In-depth knowledge of and demonstrated experience with Linux system such as Debian, RHEL, and SLES
  • Knowledge about typical open standard protocols and services like HTTP, DNS, IMAP, SMTP, SQL
  • Experience in operating PowerDNS service nice to have
  • Experience in operation and administration of Dovecot IMAP server appreciated
  • Understanding of complex setups in heterogeneous environments
  • Experience with mission critical systems
  • Ability to work independently
  • Service oriented and entrepreneurial mind-set
  • Goal-oriented working style and high self-motivation
  • Team player and ability to communicate well amongst peers
  • Excellent verbal and written communication skills in English
  • Discipline to drive results from a home and/or OX office
Our offer to you
  • Working on a modern cloud software in an international team
  • Wide scope to develop your own ideas and projects
  • Flexible working hours and the ability to work from home
  • The most current and jazzy equipment
  • A culture of open and frequent feedback
  • Hackathons, Workshops and Team events
  • Continuous personal development & training
  • Company sports - entry to various gyms and swimming pools
  • A company pension scheme
  • Flat hierarchies combined with an "Open Door" policy
Who we are We are a hidden champion. When it comes to open source communication, office productivity and DNS-based security software and services, we are one of the leading players out there. Our 250+ employees around the globe are the reason, why our key products – OX Cloud, Dovecot, and PowerDNS – are used by more than 200 million people for their private and business communications via partners such as Deutsche Telekom, GoDaddy, Strato, Orange, Comcast, or web.com. For further questions, please contact Kerstin Florath via recruiting@open-xchange.com.

Job Benefits:

  • Homeoffice
  • Flat hierarchies
  • Flexible working times
  • Top notch equipment
  • Work-Live-Balance
  • Culture-Mixed
  • Company Pension
  • Company Health Management

Time zone: (GMT-05:00) Eastern Time

Skills: linux kubernetes docker ansible git sysadmin

(OASU04_21 - USA )
The job in a nutshell
As a Linux Cloud Administrator you will be joining our growing US Operations Team and support our SaaS email platform. Core competencies required include automated deployment, virtualization and mail protocols.
The job in bullet points

  • Server deployment, configuration and management using Kubernetes, Terraform, Chef and Ansible.
  • Shell scripting and tooling.
  • Monitor system logs and activities.
  • Participate in a 24 x 7 on-call rotation
  • Collaborate with global operations teams.
  • Assist with security audit and compliance tasks.
  • Document architecture and essential function methodologies.
  • Some domestic and international travel will be required

What you bring to the table

  • Solid understanding of networking concepts: the OSI model, TCP, IP, routing, firewalls, load balancers
  • Preferably 8+ years experience working with Linux
  • Experience with cloud infrastructure technologies including OpenStack, Kubernetes, Terraform, Ansible or Chef
  • Familiarity with Dovecot, LDAP, Galera, Cassandra
  • Experience with object storage platforms (Scality, Ceph)
  • Experience with logging technologies such as Graylog, Kibana, or Splunk
  • Excellent written and verbal communication skills; willingness to present technical information to a group
  • DevOps Mindset

What we offer

  • Working on modern cloud software in an international team
  • Freedom to develop your own ideas and projects
  • Work from home or one of our well-appointed worldwide offices
  • Top notch equipment
  • Regular cross-border, cross-team events
  • Continuous personal development & training
  • Language courses (e.g. German, English)
  • Flat hierarchies combined with an "Open Door" policy
  • Health Insurance (medical, dental, vision)
  • Safe Harbor 401k Plan

Who we are
We are a hidden champion. When it comes to open source communication, office productivity and DNS-based security software and services, we are one of the leading players out there. Our 300+ employees around the globe are the reason, why our key products – OX Cloud, Dovecot, and PowerDNS – are used by more than 200 million people for their private and business communications via partners such as Telecom, GoDaddy, Strato, Orange, Comcast, or web.com.
For further questions, please contact Kerstin Florath via recruiting@open-xchange.com.



Job Benefits:

  • Homeoffice
  • Flat hierarchies
  • Flexible working times
  • Top notch equipment
  • Work-Live-Balance
  • Culture-Mixed
  • Company Pension
  • Company Health Management

Time zone: (GMT-05:00) Eastern Time

Skills: linux networking scripting java database

(SALE07 - Germany )
The Job As a Solution Engineer you will be part of the OX Professional Services Team, which helps our customers worldwide to deploy Open-Xchange, Dovecot and PowerDNS solutions in their networks and systems. As part of the team you will work closely with our customers, partners and other OX teams, collaborating in the analysis, design, setup, testing and launch phases of roll-out and migration projects. Key responsibilities

  • Participate in technical meetings with customers, partners and OX colleagues. Assess customer's requirements, discuss technical challenges and find joint solutions.
  • Help our customers to deploy Open-Xchange, Dovecot and PowerDNS technologies, working with them in the design, integration, installation, configuration, testing and launch of Email and DNS solutions.
  • Investigate and reproduce complex custom issues, test solutions, help implement fixes with our Technical Support team
  • Communicate with customers and partners and manage technical relationships
  • Work closely with our development and technical support teams
  • Hands on training of customer’s administrators and support teams

What do you bring to the table

  • In-depth knowledge of and demonstrated experience with Linux system such as Debian, RHEL, and SLES: command line interface, tuning, troubleshooting
  • Scripting: bash, python
  • Knowledge of Linux networking: interfaces, TCP/IP tuning, packet capture and analysis, etc
  • Knowledge of virtualization technologies and related orchestration software; infrastructure as code
  • Knowledge of containers, Kubernetes and the related ecosystem
  • Knowledge of and experience with networking protocols like IPv4, IPv6, UDP, TCP, Anycast
  • Knowledge about open standard protocols and services like BGP, DNS, HTTPS, IMAP, SMTP, SQL
  • Bonus: Experience with Dovecot IMAP Server and/or OX App Suite
  • Bonus: Experience with Email platforms (MTA, antispam, webmail, mailboxes, etc.)
  • Ability and willingness to work independently a part of a European team and to travel international
  • Good verbal and written communication skills in English and German
  • Be organized with a strong attention to detail and ability to work well under pressure
  • Level of experience: 5-10 years

Tools and programming/scripting languages

  • Operating Systems: Linux (CLI, OS tuning, troubleshooting and scripting)
  • DevOps tools: Ansible
  • Metrics: Prometheus, Grafana, Telegraf, InfluxDB
  • Version Control: Git, Github, Gitlab
  • Virtualization: OpenStack, VMware, AWS, etc
  • Container infrastructure and orchestration: Docker, Kubernetes, Helm, bonus: basic orientation in the CNCF landscape
  • Databases: PostgreSQL, MariaDB, MySQL, Redis

What we offer

  • Working on a modern cloud software in an international team
  • Wide scope to develop your own ideas and projects
  • Flexible working hours and the ability to work from home – even when the pandemic is over
  • The most current and jazzy equipment
  • A culture of open and frequent feedback
  • Hackathons, Workshops and Team events
  • Continuous personal development & training
  • Language courses (e.g. German, English)
  • Company sports - entry to various gyms and swimming pools
  • A company pension scheme

Who we are We are a hidden champion. When it comes to open source communication, office productivity and DNS-based security software and services, we are one of the leading players out there. Our 250+ employees around the globe are the reason, why our key products – OX Cloud, Dovecot, and PowerDNS – are used by more than 200 million people for their private and business communications via partners such as Deutsche Telekom, GoDaddy, Strato, Orange, Comcast, or web.com.
For further questions, please contact Kerstin Florath via recruiting@open-xchange.com.



Job Benefits:

  • Homeoffice
  • Flat hierarchies
  • Flexible working times
  • Top notch equipment
  • Work-Live-Balance
  • Culture-Mixed
  • Company Pension
  • Company Health Management

Time zone: (GMT+01:00) Berlin

Skills: customer
Customer Success Manager (Germany / Italy / Spain / France / Finland / Netherlands) As Customer Success Manager, you will be responsible for all Customer Success activities in the EU which include customer and user-facing activities and internally focused initiatives with a constant focus on and in alignment with the strategy, vision and mission of the Open-Xchange company. A successful Customer Success Manager builds impeccable relationships and is highly skilled at achieving trusted advisor status. You will collaborate closely with stakeholders from Hosting Companies, Telecommunication Providers and MSPs – with the goal to lead clients through proven, optimized go-to-market strategies and increase and improve the usage of our products by end users. This individual should be a highly motivated, strategic thinker who can guide, inspire, coach, and mentor customers, but who is also capable and willing to get deeply involved in day-to-day tasks.

Key responsibilities

  • Provide consultation and best practices to customers for migration communication, go-to-market strategies and ongoing campaign execution to unlock their full growth potential and to ensure their long-term success.
  • Actively onboard customers and partners, educating them on the benefits of the OX Products so that they can successfully sell OX Products and provide optimal support to their end users.
  • Develop and nurture relationships with Marketing, Product Management, Sales and Customer Support stakeholders in partner companies in order to facilitate their speed to market and increase their success in selling OX Products.
  • Work with the client as an end-to-end partner and assist in the development of channel marketing and growth hacking strategies focused on acquisition, retention and revenue generation.
  • Continuously monitor execution and analyze results to identify opportunities for improving customers results.
  • Establish strong relationships and rapport with internal client stakeholders (up to C-level) and key departments (e.g., Marketing, Sales, Account Management, Product, Development, Operations, Support and Leadership).
  • You stay up to date on industry and market trends with the help of your colleagues in Marketing, Sales and directly from you Customers.

What we are looking for

  • Bachelor’s degree in Marketing, Business Administration, Computer Science, Engineering, or similar field of study.
  • You have 5 + years of relevant experience in a customer-facing, Partner and/or Channel Marketing, Account Management or Strategic Consulting Organization.
  • You have a history of successfully taking initiative to nurture customer relationships and improve the customer journey.
  • Ability to manage various clients and prioritize and manage your time effectively.
  • Ability to effectively partner and collaborate across teams within an international organization.
  • Strong analytical and problem-solving skills
  • Self-motivated, proactive team player with innovative ideas
  • You are driven and can work independently.
  • You can effectively communicate in German and English both verbally and in writing across all levels of an organization.
  • You love to share your knowledge and learn from others.
  • Willingness to travel as necessary

What we offer

  • Working on a modern cloud software in an international team
  • Work from home or one of our well-appointed worldwide offices
  • Regular cross-border, cross-team events
  • Continuous personal development & training
  • Flat hierarchies combined with an "Open Door" policy
  • Further country-specific benefits

Who we are
We are a hidden champion. When it comes to open source communication, office productivity and DNS-based security software and services, we are one of the leading players out there. Our 250+ employees around the globe are the reason, why our key products – OX Cloud, Dovecot, and PowerDNS – are used by more than 200 million people for their private and business communications via partners such as Deutsche Telekom, GoDaddy, Strato, Orange, Comcast, or web.com.
For further questions, please contact Kerstin Florath via recruiting@open-xchange.com.



Job Benefits:

  • Homeoffice
  • Flat hierarchies
  • Flexible working times
  • Top notch equipment
  • Work-Live-Balance
  • Culture-Mixed
  • Company Pension
  • Company Health Management

Time zone: (GMT+01:00) Berlin

Skills: web-services linux http dns

Software Analyst / 2nd and 3rd Level Support PowerDNS (Germany / Italy / Spain / France / Finland / Netherlands)

The job in a nutshell
As a Software Analyst (with a focus on PowerDNS) you will work closely with the PowerDNS development team, as well as other parts of Open-Xchange and Dovecot development and Professional Services teams.

OX believe in hiring talent and training for skills. We think Support is a great step into a promising career. We are specifically looking for employees willing to learn quickly while delivering great support and service. The close cooperation between the Support department and the sales, services and development teams in the rest of the larger Open-Xchange organization, means growth opportunities abound inside and outside the team. In other words, this position is a great opportunity for your personal development.

The job in bullet points

  • 2nd and 3rd Level Support of PowerDNS technology for our customers
  • System diagnostics and analysis of „million user“ environments
  • Incident and Problem Management for customers' and Open-Xchange’s services
  • Participate in PowerDNS implementation projects
  • Investigate and reproduce complex custom issues, test solutions, help implement fixes
  • Monitoring Service Level Agreements (SLAs) of Incident and Problem Tickets
  • Working along and within several ITIL process implementations
  • Customer communication and managing (technical) relationship
  • Work closely with PowerDNS (including Open-Xchange and Dovecot) development, sales, and product management teams
  • Periodic 24/7 on-call duty for high-severity Incidents

Your background

  • Minimum 5 years of experience in system management, system administration or related position
  • In-depth knowledge of and demonstrated experience with Linux system such as Debian, RHEL, and SLES
  • Knowledge about typical open standard protocols and services like HTTP, DNS, IMAP, SMTP, SQL
  • Experience in operating PowerDNS service nice to have
  • Understanding of complex setups in heterogeneous environments
  • Experience with mission critical systems
  • Ability to work independently
  • Service oriented and entrepreneurial mind-set
  • Goal-oriented working style and high self-motivation
  • Team player and ability to communicate well amongst peers
  • Excellent verbal and written communication skills in English

Our offer to you

  • Working on a modern cloud software in an international team
  • Wide scope to develop your own ideas and projects
  • Flexible working hours and the ability to work from home
  • The most current and jazzy equipment
  • A culture of open and frequent feedback
  • Hackathons, Workshops and Team events
  • Continuous personal development & training
  • Company sports - entry to various gyms and swimming pools
  • A company pension scheme
  • Flat hierarchies combined with an "Open Door" policy

Who we are
We are a hidden champion. When it comes to open source communication, office productivity and DNS-based security software and services, we are one of the leading players out there. Our 250+ employees around the globe are the reason, why our key products – OX Cloud, Dovecot, and PowerDNS – are used by more than 200 million people for their private and business communications via partners such as Deutsche Telekom, GoDaddy, Strato, Orange, Comcast, or web.com.
For further questions, please contact Kerstin Florath via recruiting@open-xchange.com.



Job Benefits:

  • Homeoffice
  • Flat hierarchies
  • Flexible working times
  • Top notch equipment
  • Work-Live-Balance
  • Culture-Mixed
  • Company Pension
  • Company Health Management

Time zone: (GMT+01:00) Berlin

Skills: java mysql docker sql
Java Developer - Remote (Germany / Italy / Spain / France / Finland / Netherlands)
As a Java Middleware Developer, you will join our Engineering Services team in Europe and work on customer facing implementations and integrations that are based on OX App Suite, a modular platform designed to deliver a wide range of cloud-based services for telcos, hosters, and other providers. As a member of our innovative team, you will have the unique and rewarding opportunity to be part of new and large scaling projects and shape the way customers get their needs fulfilled. The job in bullet points
  • Design and develop high-volume, low-latency custom solutions for mission-critical systems, delivering high-availability and performance
  • Complete applications development by coordinating requirements, schedules, and activities; contributing to team
  • Web development on the middleware with the following tech stack: Java 8, Junit, OSGi, Linux, Docker, Vagrant, Apache Kafka, MySQL, Cassandra, Micronaut, ...
  • Analysis of technical problems and communication with our customers
  • Strong focus on customer relationships and service deliveries are part of your daily work
  • Collaborate cross-functionally with team members, project managers and other engineers in a self-organized way to achieve elegant and maintainable solutions.
  • Technical support of our Sales-Engineering team to find ideal solutions for our customer base
Your background
  • BS/MS degree in Computer Science, Engineering or a related subject
  • Ideally 4-5 years of hands-on Java Software Development experience
  • Object Oriented analysis and design using common design patterns
  • Understanding of Relational Databases and SQL (MySQL, Galera)
  • Structured, self-reliant and reliable way of working
  • Team and communication skills, determination, good abstraction skills
  • Strong customer orientation and communication skills that allow you to inform, help and advice customers clearly and to liaise effectively with other professionals to understand exactly what customers require
  • Good or very good English communication skills
We would be delighted about additional knowledge like
  • Experience constructing RESTful endpoints for UI consumption and knowledge of Linux and Internet Services like Apache
  • Experience with advanced architectural and design patterns such as Dependency Injection, Test Driven Development, Behaviour Driven Development
  • Experience with container platforms and container orchestration, namely Docker and Kubernetes
  • Familiarity with Gitlab
  • Good knowledge of build tools, automation and CI/CD
Our offer to you
  • Working on a modern cloud software in an international team
  • Wide scope to develop your own ideas and projects
  • Flexible working hours and the ability to work from home
  • A culture of open and frequent feedback
  • Hackathons, Workshops and Team events
  • Continuous personal development & training
  • Language courses (e.g. German, English)
  • Flat hierarchies combined with an "Open Door" policy
Who we are We are a hidden champion. When it comes to open source communication, office productivity and DNS-based security software and services, we are one of the leading players out there. Our 250+ employees around the globe are the reason, why our key products – OX Cloud, Dovecot, and PowerDNS – are used by more than 200 million people for their private and business communications via partners such as Deutsche Telekom, GoDaddy, Strato, Orange, Comcast, or web.com.
For further questions, please contact Kerstin Florath via recruiting@open-xchange.com.

Job Benefits:

  • Homeoffice
  • Flat hierarchies
  • Flexible working times
  • Top notch equipment
  • Work-Live-Balance
  • Culture-Mixed
  • Company Pension
  • Company Health Management

Time zone: (GMT+01:00) Berlin

Skills: node.js javascript css

Wir suchen Dich als neues Mitglied für unser Frontend-Team, welches für unser Hauptprodukt, die OX App Suite, verantwortlich ist. Das Team ist über verschiedene Standorte in Deutschland verteilt, du kannst selber entscheiden, ob du von zu Hause oder einem unserer Standorte in Olpe, Dortmund oder Leipzig arbeiten willst.

Der Job

  • Weiterentwicklung der OX App Suite, eine der marktführenden Webanwendungen im E-Mail- und Kollaborations-Umfeld weltweit
  • Implementierung und Wartung von Microservices mit node.js
  • Entwicklung von End-to-End Tests
  • Teilnahme an agilen Arbeitsprozessen im Team
  • Mitgestaltung von Softwarearchitekturen und der Auswahl von Technologien

Das bringst Du mit

  • Abgeschlossenes Studium mit dem Schwerpunkt Informatik
  • Langjährige Erfahrung in JavaScript-Programmierung sowie HTML und CSS
  • Erfahrung mit node.js
  • Idealerweise Erfahrungen im Bereich Microservices 
  • Ein Plus sind Erfahrung mit Container-Technologien (Docker und Kubernetes), automatisierten Frontend-Tests oder Continuous Deployment
  • Gute Englischkenntnisse
  • Teamfähigkeit, Kreativität, Pragmatik und Neugier

Das bieten wir Dir 

  • Spannende Arbeit an einer modernen Cloud-Software in einem internationalen & diversen Team
  • Flexible Arbeitszeiten und Homeoffice
  • Ausstattung mit dem neuesten Equipment Offene und regelmäßige Feedback-Kultur
  • Viel Freiraum für eigene Ideen
  • Hackathons, Workshops und Teamevents
  • Eine Betriebliche Altersvorsorge 

Das ist Open-Xchange
Wir sind ein Hidden Champion. Wenn es um Open-Source-Kommunikations-, Office-Produktivitäts- und DNS-basierte Sicherheitssoftware und -services geht, sind wir einer der führenden Akteure. Unsere weltweit mehr als 250 Mitarbeiter sind der Grund, warum unsere Schlüsselprodukte - die OX App Suite, Dovecot und PowerDNS - von mehr als 200 Millionen Menschen für ihre private und geschäftliche Kommunikation über Partner wie Deutsche Telekom, GoDaddy, Strato, Orange, Comcast oder web.com genutzt werden. Bei weiteren Fragen wenden Sie sich bitte an Kerstin Florath unter recruiting@open-xchange.com.



Job Benefits:

  • Homeoffice
  • Flat hierarchies
  • Flexible working times
  • Top notch equipment
  • Work-Live-Balance
  • Culture-Mixed
  • Company Pension
  • Company Health Management

Time zone: (GMT+01:00) Berlin

Skills: linux dns networking virtualization
As a PowerDNS Solution Engineer you will drive technical relationships and engagements with PowerDNS partners, assess their requirements, discuss technical challenges, find solutions, support their technical teams and coordinate OX teams to provide solutions and responses. 
What we offer
  • Working with a modern cloud software in an international team
  • Use of state-of-the-art technologies and access to exciting projects
  • Freedom to implement your own ideas and assume responsibility
  • The flexibility to work from home or at any location in the OX world
  • First-class equipment and an uncomplicated IT-affine environment
  • Continuous personal development, training and conference offerings
  • Flat hierarchies with "open door" policy, motivating work environment
  • A dynamic environment with many opportunities for personal development
  • Plenty of opportunities to attend conferences and industry gatherings with your co-workers, and an awesome end-of-year party
  • Company sports - entry to various gyms and swimming pools
Key Responsibilities
  • Manage and drive technical relationships and engagements with PowerDNS partners
  • Assess partners and customer's requirements, discuss technical challenges and find joint solutions
  • Design, integration, installation, configuration, testing and launch of PowerDNS solutions
  • Hands on training of partner and customer’s administrators and support teams
Key Skills
  • Comfortable with DNS and/or network security technologies, solutions. Experience with commercial DNS/Security products is a bonus
  • Familiar with networking protocols like TCP, UDP, IPv4, IPv6, HTTPS, BGP and Anycast
  • Strong Linux systems administration and Linux networking
  • Comfortable with NFV, Containers, K8s and other virtualization and orchestration technologies
  • Comfortable with Ansible, Git, Prometheus/Grafana
  • Good verbal and written communication skills in English - multi-lingual candidates (in German, Dutch, Spanish, French or Italian) have an advantage
  • Level of experience: +5 years
Who we are
We are a hidden champion. When it comes to open source communication, office productivity and DNS-based security software and services, we are one of the leading players out there. Our 300+ employees around the globe are the reason, why our key products – the OX App Suite, Dovecot, and PowerDNS – are used by more than 200 million people for their private and business communications via partners such as Telecom, GoDaddy, Strato, Orange, Comcast, or web.com.
For further questions, please contact Kerstin Florath via recruiting@open-xchange.com


Job Benefits:

  • Homeoffice
  • Flat hierarchies
  • Flexible working times
  • Top notch equipment
  • Work-Live-Balance
  • Culture-Mixed
  • Company Pension
  • Company Health Management

Time zone: (GMT+01:00) Berlin

Skills: java sql design-patterns database web-applications

This position is a launch pad for highly talented individuals into various opportunities, within the many business lines of OX globally. As a member of our innovative team, you will have the unique and rewarding opportunity to be part of new and large scaling projects and shape the way customers get their needs fulfilled.

What do we offer

Working on a modern cloud software in an international team
Wide scope to develop your own ideas for our product
Home Office and the opportunity to work from one of our well-appointed worldwide offices
Continuous personal development & training
Flat hierarchies combined with a "Open Door" policy

Your passion / Your job

  • Design and develop high-volume, low-latency custom solutions for mission-critical systems, delivering high-availability and performance
  • Complete applications development by coordinating requirements, schedules, and activities; contributing to team
  • Utilize the latest technology and programming techniques to realize the full capacity of OX
  • Ensure designs are complete and in compliance with specifications
  • Support continuous improvement by investigating alternatives and technologies
  • Analysis of technical problems and communication with our customers in cooperation with our support team
  • Must be very organized with a strong ability to complete work in an environment with multiple daily interruptions. Able to multi-task. Excellent attention to detail and ability to work well under pressure
  • Support of our Sales-Engineering Team in technical questions for customer requests
  • Strong Customer relationships and service deliveries are part of your daily work

What do you bring to the table

  • BS/MS degree in Computer Science, Engineering or a related subject
  • Proven hands-on Software Development experience
  • Proven working experience in Java development
  • Object Oriented analysis and design using common design patterns
  • Excellent knowledge of Relational Databases and SQL (MySQL, Galera)
  • Experience re-factoring existing code to improve readability, code reuse, performance, and maintainability
  • Experience in developing web applications
  • Fundamental knowledge of using the OSGi framework, LDAP and Unix-/Linux based applications
  • Good understanding of revision control systems (eg. GIT or SVN)
  • A bonus would be: Experience constructing RESTful endpoints for UI consumption and knowledge of Linux and Internet Services like Apache
  • Good organizational skills and a proven ability to work as a member of a team and individually
  • Strong customer focused, team oriented communication skills with emphasis on IT Infrastructure and software development.
  • Communication skills that allow you to inform, help and advise customers clearly and to liaise effectively with other professionals listening skills, to understand exactly what customers require
  • Good verbal and written communication skills in English

Who we are
We are a hidden champion. When it comes to open source communication, office productivity and DNS-based security software and services, we are one of the leading players out there. Our 300+ employees around the globe are the reason, why our white label key products – the OX App Suite, Dovecot, and PowerDNS – are used by more than 200 million people for their private and business communications via partners such as Telecom, GoDaddy, Strato, Orange, Comcast, or web.com.
For further questions, please contact Kerstin Florath via recruiting@open-xchange.com.



Job Benefits:

  • Homeoffice
  • Flat hierarchies
  • Flexible working times
  • Top notch equipment
  • Work-Live-Balance
  • Culture-Mixed
  • Company Pension
  • Company Health Management

Time zone: (GMT-06:00) Central Time

Skills: frontend api vue.js user-interface user-experience

Software Developer PowerDNS
( - Germany / Italy / Spain / France/ Finland / Netherlands )


The job in a nutshell
As a Software Developer you will join our PowerDNS Team. You will enrich our team with your experience with building web-app front ends and your passion for UX design. PowerDNS has developed a suite of open and closed-source products, revolving around DNS and DNS-based security, and this job gives you the opportunity to take the UI/UX for these products to the next level.

Our office for PowerDNS is located in The Hague (The Netherlands) but you can also work from home and you have flexible, family-friendly working times. If you want you can also work in one of our other entities in Europe, as long as you reside in the following countries: Germany, Finland, Netherlands, Italy, France, or Spain.

The job in bullet points

  • (Re-)design and implement the UI/UX, and associated logic/APIs, of our complete suite of open and closed-source products
  • Support our Sales Engineering and Support teams with technical questions or topics from customers
  • Continuously improve yourself and the products by investigating alternatives and technologies

Your background

  • Web-app/front-end developer with back-end experience
  • You are familiar with and current on the latest, modern web-app development techniques and the NPM ecosystem
  • Proven track-record of creating full-stack web-apps from scratch, production-ready and with modern tooling
  • At least basic experience with back-end development to support the front end with the necessary APIs
  • Knowledge of and experience with Vue.js and/or Angular and/or React
  • Familiar with and current on JavaScript/TypeScript, CSS and other modern browser standards, and with CSS frameworks like Bootstrap
  • Open-Source Software development experience is a plus
  • You are able to work independently
  • Good verbal and written communication skills in English is a must; Dutch and German skills are a plus

Our offer to you

  • Working on a modern software in an international team
  • Wide scope to develop your own ideas and projects
  • Home Office and the opportunity to work from our office in the centre of The Hague or one of our other well-appointed European offices
  • The most current and jazzy equipment
  • Regular cross-border, cross-team events, Corona-permitting.
  • Continuous personal development & training, including job-specific certifications
  • Flat hierarchies combined with an "Open Door" policy
  • Further country-specific benefits

Who we are
Open-Xchange (OX) is a developer of secure and open communication and office productivity software, IMAP server software and DNS solutions. Since 2005, it has partnered with many of the world’s largest Internet Service Providers (ISPs), telcos and carriers to deliver Open Source email and productivity solutions that include secure storage, file and document management. OX Dovecot is the world’s most popular IMAP server software and OX PowerDNS provides secure DNS services to telco customers and their users worldwide. Software developed by Open-Xchange is used by 200 million people globally. It is headquartered in Germany, with offices in Bremen, Cologne, Dortmund, Hamburg, Nuremberg and Olpe, and international offices in Finland, Italy, Japan, the Netherlands and the USA. For further questions, please contact Kerstin Florath via recruiting@open-xchange.com



Job Benefits:

  • Homeoffice
  • Flat hierarchies
  • Flexible working times
  • Top notch equipment
  • Work-Live-Balance
  • Culture-Mixed
  • Company Pension
  • Company Health Management

Time zone: (GMT+01:00) Berlin

Skills: linux networking security dns


As a PowerDNS Solution Engineer you will be part of the OX Sales Engineering Team, which helps Open-Xchange sales team sell PowerDNS solutions. 

What we offer

  • Working with a modern cloud software in an international team
  • Use of state-of-the-art technologies and access to exciting projects
  • Freedom to implement your own ideas and assume responsibility
  • The flexibility to work from home or at any location in the OX world
  • First-class equipment and an uncomplicated IT-affine environment
  • Continuous personal development, training and conference offerings
  • Flat hierarchies with "open door" policy, motivating work environment
  • A dynamic environment with many opportunities for personal development
  • Plenty of opportunities to attend conferences and industry gatherings with your co-workers, and an awesome end-of-year party
  • Company sports - entry to various gyms and swimming pools

Key Responsibilities

  • Manage the technical relationship with key customers throughout the Presales cycle
  • Investigate customer needs and pain points and find PowerDNS solutions.
  • Evaluate customer environments, create custom integration concepts, and write SOWs for actual implementations.
  • Manage architecture, design, and documentation for customer solutions
  • Collaborate with the PowerDNS and other product teams to build technical presentations for customer and industry events.
  • Train other OX team members on cutting edge PowerDNS technologies as they are built

Key Skills

  • Good verbal and written communication skills in English - multi-lingual candidates (in German, Dutch, Spanish, French or Italian) have an advantage.
  • Comfortable with DNS and/or network security technologies, solutions. Experience with commercial DNS/Security products is a bonus.
  • Familiar with networking protocols like TCP, UDP, IPv4, IPv6, HTTPS, BGP and Anycast
  • Strong Linux systems administration and Linux networking
  • Comfortable with NFV, Containers, K8s and other virtualization and orchestration technologies.
  • Comfortable with Ansible, Git, Prometheus and Grafana.
  • Level of experience: +5 years

Who we are
We are a hidden champion. When it comes to open source communication, office productivity and DNS-based security software and services, we are one of the leading players out there. Our 300+ employees around the globe are the reason, why our key products – the OX App Suite, Dovecot, and PowerDNS – are used by more than 200 million people for their private and business communications via partners such as Telecom, GoDaddy, Strato, Orange, Comcast, or web.com.
For further questions, please contact Kerstin Florath via recruiting@open-xchange.com



Job Benefits:

  • Homeoffice
  • Flat hierarchies
  • Flexible working times
  • Top notch equipment
  • Work-Live-Balance
  • Culture-Mixed
  • Company Pension
  • Company Health Management

Time zone: (GMT+01:00) Berlin

Skills: java docker linux

This position is part of our Engineering Services EMEA. You will work on customer adaptions and implement customer specific features for our OX App Suite, a browser based email, communication and collaboration platform. You will be part of a team which is spread across Europe and you can do this job remotely from your home office or from any of our offices within Europe.

What we offer

  • Working on a modern cloud software in an international team
  • Middleware web development with Java 8, Linux, Docker, etc.
  • Development work in close relationship to our customers
  • Wide scope to develop your own ideas for our product
  • Continuous personal development & training
  • Flat hierarchies combined with an Open Door policy

Key responsibilities

  • Design and develop high-volume, low-latency custom solutions for mission-critical systems, delivering high-availability and performance
  • Complete applications development by coordinating requirements, schedules, and activities; contributing to team
  • Web development on the middleware with the following techstack: Java 8, Junit, OSGi, Linux, Docker, Vagrant, Apache Kafka, ...
  • Ensure designs are complete and in compliance with specifications
  • Support continuous improvement by investigating alternatives and technologies
  • Analysis of technical problems and communication with our customers in cooperation with our support team
  • Collaborate cross-functionality with team members, project managers and other engineers in a self-organized way to achieve elegant solutions
  • Support of our Sales-Engineering Team in technical questions for customer requests
  • Strong focus on Customer relationships and service deliveries are part of your daily work

 Key skills

  • BS/MS degree in Computer Science, Engineering or a related subject
  • 2-3 years hands-on Java software development experience
  • Object Oriented analysis and design using common design patterns
  • Understanding of Relational Databases and SQL (MySQL, Galera), Familiarity with developing web applications would be a plus
  • Ideally experience with infrastructure automation technologies like Docker, Vagrant, etc.
  • A bonus would be: experience constructing RESTful endpoints for UI consumption and knowledge of Linux and Internet Services like Apache
  • Good organizational skills and a proven ability to work as a member of a virtual team and individually in a remote situation
  • Strong customer focused, team-oriented communication skills with emphasis on IT Infrastructure and software development
  • Good verbal and written communication skills in English
  • Communication skills that allow you to inform, help and advise customers clearly and to liaise effectively with other professionals, to understand exactly what customers require
  • First work experience is desirable


Job Benefits:

  • Homeoffice
  • Flat hierarchies
  • Flexible working times
  • Top notch equipment
  • Work-Live-Balance
  • Culture-Mixed
  • Company Pension
  • Company Health Management

Time zone: (GMT+01:00) Berlin +/- 2 hours