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As a Senior Backend Engineer, you will help create the infrastructure layer for B2B transportation. You will collaborate cross-functionally with Product, Data-Science, and other teams to deliver new products and solutions to meet both internal and customers’ needs.

You’ll be responsible to drive the implementation of new features end to end from refinement to release to production. As priorities and needs in a startup constantly change, you will use your experience and judgement to balance between rapid iterations and engineering well-architectured, adaptable, secure, and scalable services.

As part of a growing team, you have the opportunity to shape not only the product we’re building, but also our ever-evolving engineering culture and processes.

As a Senior Backend Engineer, you...

• Find simple yet flexible solutions for complex and ever-evolving business needs through collaboration with Product and other functional teams
• Design and implement RESTful APIs that drive our frontends and connect to client/partner systems based on containerized microservices and serverless functions. We write most of our services in Kotlin/Java or Python
• Have a “you built it, you run it” attitude with CI/CD as their second nature. We use AWS, Docker, Kubernetes, and Bitbucket pipelines to implement it
• Drive engineering initiatives and technical improvements
• Onboard and mentor other team members through code reviews, pair programming, and continuous feedback
• Establish, document, and implement best practices and engineering standards
• Take initiative to research new technologies, read articles and news in order to understand the current state of the backend community

Qualifications

• At least 4 years of software development experience
• Ability to work both self-directed and collaboratively to deliver results in the face of conflicting priorities and ever-changing requirements
• Experience in managing and coaching team members
• Strong experience in one of our primary languages: Python, Kotlin, Java
• Deep knowledge of designing and developing scalable, distributed and microservices and/or serverless based applications with RESTful APIs
• Expert in SQL and relational database design
• Experience with containerisation and container orchestration (Docker and Kubernetes preferred) in a cloud environment (AWS preferred)
• High attention to security-related topics, including infrastructure and application security
• Knowledge of the transportation industry, especially full truckload transportation, and related systems such as TMS and standards such as EDI is useful

Job Benefits:

• A competitive compensation package
• Ability to work remotely
• Flexible working hours
• Opportunities to shape a growing team and take on responsibility
• Your primary work tool

Data Janitor

We are Leaf.

Leaf is on a mission to upend the way companies buy and sell transportation. Every year, billions of dollars, hundreds of megatons of carbon and millions of person-hours are wasted because the companies who ship goods and the companies who carry them aren’t upfront about their needs and abilities. Our platform finds ways for buyers and sellers to contract binding commitments for plannable and predictable freight and allows those contracts to be traded when needs change. In time, Leaf will become the hub through which the trillion-dollar American freight market is managed.

We are a team of experienced, smart, and mildly disagreeable troublemakers who like taking on unreasonably big challenges; we know how to build things, we’ve lived what’s broken in this industry, and we’re looking for bright, ambitious people to help us drag the transportation world kicking and screaming into the 21st century.

What does the Data Janitor do?.

The Leaf analytics team is responsible for identifying opportunities to deploy our forward contracting technology, monitoring how those contracts execute, developing new contracting products to meet customers’ needs, and building data products which help our shipper & carrier partners better plan their transportation activities. We ingest, clean and process data from a variety of sources and use it to build and run our models.

We are looking for people who can (or want to learn to):

• Coordinate extracting data from our customers/partners and prospects
• Find and deal with lacunae, inconsistencies, typos and just plain weirdness in incoming data
• Run our proprietary models (and work to improve them)
• Build visualizations to communicate results
• Present our findings clearly and concisely to internal and customer teams

We call ourselves data janitors as a reminder that unstinting focus on mastery of the unsexy details is how we live or die.

Who makes a great Data Janitor?.

You should be curious, relentless about asking questions until you understand something, and unafraid to acknowledge facts that don’t point in the direction you want them to. Be humble in the face of data, but tenacious in asserting the facts you know.

You must be able to write well: clearly, and with the ability to simplify complex arguments without obscuring their essential truths.

Be willing to work with people you disagree with; be eager for criticism, and constantly searching for ways to do what you do better. Never be content with things the way they are, but don’t let the quest for something perfect prevent you from shipping something good.

Have a sense of humor, and be prepared to use it liberally.

Knowledge of the transportation industry, especially truckload, is useful, and it’s helpful If you have experience with the Python / Anaconda / Jupyter / Scipy / Pandas stack as well as familiarity with some or all of the following:

• Geospatial analysis
• Clustering
• Time series forecasting
• Bayesian modeling
• Graph-theoretic techniques for network analysis

… but if you’re a quick study, we’ll take raw intelligence and the right attitude over technical proficiency every time.

Who doesn't?.

What we’re trying to do is hard. Technically difficult some of the time, but also hard because we’re asking for big changes from people who are usually very comfortable doing things the way they’ve always been done. There is a lot of frustration, and it’s easy to put a lot of work into something that doesn’t bear fruit. But we’re here to put a big dent in a gigantic industry, something we’ll all be proud of a decade from now.

We’re also a startup. Priorities change all the time, something’s always on fire, and there’s twice as much work to do as hands to do it. It’s uncomfortable, new challenges surface constantly, and that means it’s up to you to manage how you spend your time in the midst of conflicting priorities.

We’re well-funded, with advisors and investors who’ve built legendary companies. But we’re also deploying that capital aggressively, so you should expect uncertainty and discomfort.

If the above sounds daunting, you’re a perfectly sound and reasonable person who probably won’t fit in at Leaf. If this strikes you as an exhilarating milieu, well, let’s talk.

Compensation.

Leaf offers a very comprehensive compensation package including competitive base salary, variable compensation and health benefits.

Leaf Logistics is an equal-opportunity employer and we welcome applicants from all backgrounds. If you’re a passionate team player who wants to have an outsized impact on a diverse and dynamic team, we’d love to hear from you!

Time zone: (GMT-05:00) Eastern Time +/- 4 hours

As a Front End Engineer, you will work closely together with designers and other engineers to advance the development of our modern web platform and deliver exciting new experiences to our customers. You will contribute to the overall design and usability of the platform, and rigorously leverage data collected e.g. through user analytics and A/B testing to transform complex processes and rich data into insightful yet attractive and concise user experiences. The role will challenge you to work in a highly agile environment and address strategic and implementational topics. Experience with back end development, esp. with Java, would be beneficial.

Responsibilities

• Partner with the design and product management team to innovate and develop new design and interaction concepts
• Translate mock-ups and interpret style guides to create cohesive interfaces with modular code
• Develop rich, flexible front end components to enable engineers to easily and quickly build client-side code
• Design and implement A/B tests to improve UX decision making
• Share and document knowledge and best practices for front end development in React
• Mentor and support other team members through code reviews and continuous feedback
• Take initiative to research, troubleshoot and resolve bugs and issues as they arise
• Be a flexible team player, stepping into a variety of roles, as needed

Qualifications

• Strong experience building modern, elegant web apps using React/Redux
• Excellent Javascript/TypeScript, CSS and HTML5 skills
• In-depth knowledge of browsers and their behaviour
• Passionate about user experience
• Experience with test frameworks (e.g. jest, Enzyme)
• Understanding of RESTful services and service oriented architecture
• Experience developing back end service (preferably in Java)
• Experience with A/B testing
• Preferred: Prior experience in designing and developing data-rich front ends for financial systems (e.g. trading, risk, or compliance systems) and/or for logistics systems
• Preferred: Knowledge in other front end frameworks such as Angular, Knockout, Ember, etc.
• Preferred: Knowledge in cloud technologies/infrastructure (esp. AWS)
• Strong analytical, project leadership and communication skills
• Ability to work both self-directed and collaboratively to deliver results in a fast paced, startup environment
• Unbelievably positive attitude, sense of humor and/or thick skin
• Consummate team player, able to wear multiple hats, and assist team members when needed

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