Igor Wiedler
Staff Site Reliability Engineer at GitLab
Berlin, Germany
Summary
🤩
Rockstar🎓
Top SchoolIgor Wiedler is a Staff Site Reliability Engineer based in Berlin with 12 years of experience building and operating large-scale production systems. He combines a software engineering background with deep SRE practice, having driven OS upgrades, terraform drift detection, on-call and incident-process improvements, and performance fixes across Redis, Postgres and GitLab storage tiers. Igor is a frequent open-source contributor—his work spans backend, DevOps and front-end improvements in well-known projects like GitLab, Travis CI and Zipkin—often landing changes that improve observability, tracing and operational efficiency. He routinely applies rigorous profiling and data-driven investigations to root out performance regressions and has a track record of turning analysis into automated, low-toil solutions such as auto-scaling and immutable images. Colleagues know him as a mentor and cross-team connector who makes engineering work visible and drives measurable reliability outcomes.
12 years of coding experience
8 years of employment as a software developer
Informatikmittelschule Winterthur
Github Skills (45)
git10
javascript10
jquery10
gitlab-omnibus10
apidoc10
redis10
configuration-management10
bash10
user-interface10
travis-ci10
cicd10
ruby10
chef-client10
go10
api10
Programming languages (24)
Github contributions (5)
travis-ci/travis-api
May 2016 - Oct 2018
The Travis CI API
Role in this project:
Back-end Developer
Back-end DeveloperContributions:240 commits, 271 PRs, 526 pushes in 2 years 5 months
Contributions summary:Igor primarily contributed to the back-end of the Travis CI API. Their work included removing outdated safelists, merging branches, implementing and modifying API endpoints for user settings and GitHub hook management. The user also worked on database configurations and implementing features related to cron jobs, and potentially working on the internal workings of the API through the addition of request deadlines.
apitravistravis-ci-apitravis-ci
rbspy/rbspy
Apr 2020 - Nov 2020
Sampling CPU profiler for Ruby
Role in this project:Back-end Developer
Back-end DeveloperContributions:1 review, 15 commits, 13 PRs in 7 months
Contributions summary:Igor contributed to the core functionality of the `rbspy` profiler, focusing on enhancements to data storage and output formats. They implemented features to include timestamps in the output, and added versioning and header information to improve the data structure. The commits involve modifications to various aspects of the code, including data structures, file storage, and output formatting for the profiling data. The user also fixed a bug related to double writes, ensuring the integrity of the generated profile data.
cpurustrubycpu-profilerprofilers
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