Senior Software Engineer - Applications Team

San Francisco, California / Remote
Location: San Francisco / Fully remote
Seniority: Senior/Expert
Compensation: competitive market salary + 0.1% stock options

At source{d} we are building the technology stack for the next generation of Machine Learning powered developer tools. We are an open-core company built around our Open Source projects. We have raised over eight million USD so far, and we are currently growing our team.

Engineering at source{d}

Engineering consists of five different teams that represent the architecture of our product:

• Applications (Scala, Go, Python, and Frontend tools): Builds CLI/Web applications combining ML research with our stack.
• Machine Learning (C++ and Python): Performs R&D for Machine Learning on Source Code.
• Data Retrieval (Scala and Go): Builds the technology that finds, fetches, stores and analyzes over +60M Git repositories.
• Language Analysis (Go and another +15): Focused on Babelfish, the universal code parsing server.
• Infrastructure (Go and Python): Manages a cluster of on-prem bare metal servers with Kubernetes and CoreOS, and GCP for user facing applications.

We care about Open Source. Everything we develop is available for anyone to read, modify, and contribute (under Apache 2.0 or GPL3 license). Some examples of our projects are:

bblfsh/bblfshd: Babelfish server, turning code into Universal Abstract Syntax Trees (UASTs).
src-d/engine: a library for running scalable data retrieval pipelines that process any number of Git repositories for source code analysis.
src-d/go-git: a highly extensible Git implementation in pure Go.
src-d/ml: a library to build and apply Machine Learning models on top of Universal Abstract Syntax Trees.

If you are interested in understanding how we do code reviews, please take a look at the PRs on any of these projects. You can also learn more about our engineering methodology here.


This position is for a Senior Engineer on the Applications team.

You will be expected to have a deep understanding and 2+ years of previous experience working on developer tooling impacting a large number of developers.
Your main responsibilities will be prototyping and exploring the future of developer tooling by discovering new applications that could be meaningful to the developer community.
You will deal with models built using modern ML stacks written in Python and C++ such as Tensorflow, Tensorboard, CUDA, so familiarity with any of those tools is a plus.
You will be working closely with the Developer Relations team in order to explore and identify product ideas. You will have the opportunity to write blog posts and make videos about our technology, even though it's not the main responsibility of the role.
It's important to combine your coding skills with your social skills in order to demonstrate the developer tools we build to the developer community.


• source{d} is a company for developers by developers. We firmly believe in always doing what's best for the individual developer in the community. Our team consists of members who are passionate about programming. To understand our culture better, read more about it here.

• At the moment, we are 25+ people from 10 different countries working as a distributed organization. Some of our team members are based in the Madrid or San Francisco office, others work remotely from around the world (Portugal, Estonia, Russia, and others).

• For those wanting to work from one of our offices, we fully support the visa and moving process for you and your family.

• At source{d}, we have a transparent salary policy which we feel strongly about it. Your seniority level will be determined during the last round of on-site interviews.

• At source{d} all of the projects we work on are public on GitHub and the vast majority are open-source under licenses such as Apache 2.0 or GPL3.

• We don't just believe in open-source, we also believe in radical transparency as an organization, there we publish everything about the company at


• We go to conferences and other developer events!
• Open Source Days, every second Monday, you are encouraged to work on any OSS project you choose.
• Flexible hours, set your own schedule that fits you.
• Free books. We will buy any books that help you learn & grow.
• If you choose to work from one of our offices, you will enjoy a comfortable and spacious environment.
• Annual summer and winter Christmas parties and a hackathon retreat are held in Madrid and all team members are flown over for it.
• We also have our own, Open Source craft beers.