Jacob Vosmaer
Taking A Break at Self-employed
Netherlands
Summary
🤩
Rockstar🎓
Top SchoolJacob Vosmaer is a seasoned backend engineer with 14 years of experience building scalable Git infrastructure and distributed systems, best known for deep contributions to GitLab and the Git core. At GitLab he worked across Gitaly, Omnibus packaging and scalability teams, improving Git RPCs, repository management and backup/restore workflows that power large self-hosted installations. His open-source work includes performance and correctness fixes in the upstream git project and practical DevOps-focused refactors in gitlab-shell, demonstrating a rare combination of Git internals expertise and pragmatic engineering. Previously trained as a mathematician with a PhD in logic, he brings formal thinking to system design and subtle performance tuning. Now on a break and based in the Netherlands, he remains an active open-source contributor with a track record of reducing log noise, syscalls, and operational complexity in critical tooling.
14 years of coding experience
15 years of employment as a software developer
BSc, Mathematics, BSc, Mathematics at University of GroningenMSc, Logic, MSc, Logic at University of Amsterdam
Dutch, English
Stackoverflow
26reputation
2kreached
1answer
0questions
Github Skills (35)
git10
c-language10
system-programming10
gitlab-omnibus10
audiounit10
audio-processing10
internals10
c1110
ruby10
c1710
gitlab10
performance-optimization10
coreaudio10
build-automation10
om10
Programming languages (14)
Github contributions (5)
gitlabhq/gitlab-shell
Jul 2013 - May 2022
Replacement for gitolite. This repo is a mirror of https://gitlab.com/gitlab-org/gitlab-shell/
Role in this project:
Back-end Developer & DevOps Engineer
Back-end Developer & DevOps EngineerContributions:154 commits, 7 pushes, 3 tags in 8 years 10 months
Contributions summary:Jacob primarily focused on improving the codebase's efficiency and maintainability. They removed unused require statements, replaced `sed -i` with `Tempfile`, and removed gitolite support. The user also made changes to the GitlabProjects class, refactoring hook creation and bypassing the shell for certain operations. Furthermore, the user streamlined the code by removing sed invocations and shell commands.
gitlabgitoliteshell
gitlabhq/omnibus-gitlab
Jan 2014 - Dec 2021
GitLab Omnibus Mirror | Please open new issues in our issue tracker on GitLab.com
Role in this project:Backend Developer
Backend DeveloperContributions:1333 commits, 50 pushes, 15 branches in 7 years 11 months
Contributions summary:Jacob focused on building and maintaining the GitLab Omnibus project, specifically related to configuring and integrating various components. Contributions included adding software definitions for gitlab-shell, git, and other dependencies. The user also worked on database-related configurations for both PostgreSQL and Redis, including settings and migrations. They demonstrated expertise in build process management and the integration of backend services.
gitlab-omnibus
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