Job openings

Paris-based full-time back-end developer

Software Heritage is an ambitious nonprofit, entirely Free/Open Source Software (FOSS) project that aims at collecting, organizing, preserving for the very long term, and sharing all publicly available software in source code form, together with the corresponding complete development history (e.g., from a Version Control System) where available.  The Software Heritage archive already contains about 5 billion unique source code files and 900 million commits, retrieved from more than 80 million software projects.

We are looking for an experienced back-end developer to grow our development team, and work on:

  1. extending the coverage of the Software Heritage archive, and
  2. implement back-ends for user facing features that allow to access and exploit the content of the archive.

As part of this position you will primarily work on retrieval, storage, and analysis of source code development artefacts at a very large scale. To that end, the ideal candidate should be familiar with one or more of the following technologies:

  • Python
  • PostgreSQL
  • Ceph
  • Apache Kafka
  • Various version control systems and their internals (Git, Subversion,  Mercurial, etc.)
  • Various source package formats and their internals (Debian’s .dsc, Red  Hat’s SRPM, sourceful JARs, etc.)
  • Various development forges and package managers, as well as their APIs  (GitHub, GitLab, Bitbucket, NPM, PyPi, etc.)

Working knowledge of one or more of the following techniques and technologies would be a plus and might be used as a basis to tailor the profile to your specific interests (to be negotiated):

  • UNIX system programming
  • Functional programming
  • Machine learning

A successful candidate will have strong programming skills, fluency in at least a couple of system- and/or application-level programming languages, as well as a solid track record of contributions to existing FOSS projects and communities.

All the code developed as part of this position will be released under a FOSS license, usually copyleft (GPL3 or AGPL3). Upstream contributions to FOSS products we depend upon are strongly encouraged.

Workplace and salary

The job must be worked on-site at Inria’s Paris headquarters. The salary will be commensurate with experience and qualifications.

Application instructions

Applications must be submitted via email to The email must contain the subject line “Back-end Developer”. A complete application should include:

  • resume
  • cover letter
  • links to any previous related work online

All materials must be in a free format (such as plain text, PDF, or OpenDocument, and not Microsoft Word). Email submissions that do not follow these instructions will probably be overlooked.

Applications will be reviewed on a rolling basis until the position is filled.

Software Heritage is an equal opportunity employer and will not discriminate against any employee or application for employment on the basis of race, color,marital status, religion, age, sex, sexual orientation, national origin,handicap, or any other legally protected status. We value diversity in our workplace.