Claas Augner
Senior Software Engineer at Mozilla
Paris, Ile-de-France
Summary
🤩
Rockstar🎓
Top SchoolClaas Augner is a Senior Software Engineer based in Paris with 11 years of experience building robust web platforms and developer tooling. Currently at Mozilla, he contributes to MDN’s backend and infrastructure, combining Python refactors, API work and CI/CD improvements to keep one of the web’s most-used documentation sites healthy. He has held technical leadership roles at zappmedia and earlier development positions, bringing experience in team coaching and shipping reliable features across stacks. An active open-source contributor, he has improved major PHP and Laravel projects (including psalm and laravel/framework), TypeScript typings for DefinitelyTyped, and front-end UX fixes in Discourse. Claas pairs pragmatic engineering—error-handling additions like updateOrFail/deleteOrFail and improved test coverage—with attention to developer experience and observability. He studied computer science at Freie Universität Berlin and often focuses on small infrastructure changes that prevent large operational headaches down the line.
11 years of coding experience
8 years of employment as a software developer
Master of Science (M.Sc.), Computer Science, Master of Science (M.Sc.), Computer Science at Freie Universität Berlin
German, English, French
Github Skills (57)
application-framework10
github-ci10
javascript10
type-inference10
static-analysis10
python10
laravel-mix10
testing10
app-framework10
git-repository10
typescript10
typescript-definitions10
laravel10
type-definition10
repos10
Programming languages (36)
Github contributions (5)
mdn/content
Mar 2022 - Dec 2022
The content behind MDN Web Docs
Role in this project:
DevOps Engineer
DevOps EngineerContributions:248 reviews, 12 commits, 151 PRs in 9 months
Contributions summary:Claas's contributions center around improving the CI/CD pipeline and related tooling for the MDN Web Docs project. The commits demonstrate work on automating redirect validation, including integration with legacy systems and the use of `rari`. They also refactored the deployment process by migrating to ESM and introducing new scripts for content analysis and PR review. Furthermore, the user updated the build process, adding features such as build analysis and preview URL generation.
cssjavascriptreferencefundamentalsmdn
mdn/browser-compat-data
Apr 2018 - Oct 2018
This repository contains compatibility data for Web technologies as displayed on MDN
Role in this project:QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:10 releases, 1299 reviews, 71 commits in 6 months
Contributions summary:Claas primarily contributed to the testing and linting infrastructure of the repository. Their work included enhancing the linting process by improving error reporting, adding new checks for code style, and incorporating the use of `ora` for less verbose output. The user also added tests for browser data and status inheritance. The user's contributions focused on improving code quality, identifying potential issues, and streamlining the development workflow through automated checks.
datatechnologiesbrowsercompatjavascript
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