Nazim Altinova
Staff Software Engineer at Mozilla
Berlin, Germany
Summary
🤩
Rockstar🎓
Top SchoolNazim Altinova is a Staff Software Engineer based in Berlin with 12 years of experience building high-performance browser and rendering systems. At Mozilla he drives both front-end and low-level performance work, contributing to flagship projects like Servo and Gecko where he improved UI/UX, profiling instrumentation, and GPU-based rendering stability. He blends practical front-end skills (React/Fluent, styling, reftests) with systems-level expertise in profilers, Rust APIs and renderer debugging—helping surface and diagnose hard-to-reproduce rendering and performance issues. Known for meticulous test and profiling improvements, he often fixes subtle cross-platform bugs (library name resolution, non-invertible transforms) that improve reliability for millions of users.
12 years of coding experience
Mühendislik Fakültesi, Bilgisayar Mühendisliği, Mühendislik Fakültesi, Bilgisayar Mühendisliği at Trakya Üniversitesi
Turkish, İngilizce
Github Skills (30)
debugging10
debug10
javascript10
c-language10
performance-monitor10
performance-analytics10
code-profiling10
component-development10
css10
user-interface10
ui-design10
gecko10
render10
uid10
webr10
Programming languages (16)
Github contributions (5)
firefox-devtools/profiler
May 2018 - Jan 2023
Firefox Profiler — Web app for Firefox performance analysis
Role in this project:
Front-end Developer
Front-end DeveloperContributions:1146 reviews, 867 commits, 870 PRs in 4 years 9 months
Contributions summary:Nazim was primarily involved in modifying and maintaining front-end components within the Firefox Profiler repository. Their contributions focused on refactoring the view states, cleaning up actions, fixing and enabling tests, adding new components for visual metrics and the related styles with CSS. Their work involved the React and Fluent frameworks to enhance and localize the user interface.
firefoxreactgecko-profilerperformance-analysisjavascript
mozilla/gecko-dev
May 2015 - Jan 2023
Read-only Git mirror of the Mercurial gecko repositories at https://hg.mozilla.org. How to contribute: https://firefox-source-docs.mozilla.org/contributing/contribution_quickref.html
Role in this project:Performance Engineer
Performance EngineerContributions:386 commits in 7 years 10 months
Contributions summary:Nazim primarily contributed to the Firefox profiler within the Gecko codebase. Their work focused on adding and refining profiler labels and frames for various code paths, including event handling, element state changes, HTTP channel operations, and JIT sort functions. The user also addressed issues related to shared library handling within the profiler, including fixing library name resolution on Linux and macOS, and improved memory management and overall code deduplication efforts. Furthermore, they made improvements to the Rust API used by the profiler and addressed an issue where some existing tests weren't properly waiting.
repositoriesfirefoxmercurialgit-mirrormozilla
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