Luca Forstner
Senior Software Engineer at Braintrust
Vienna, Austria
Summary
🤩
Rockstar🎓
Top SchoolLuca Forstner is a Senior Software Engineer based in Vienna with eight years of hands-on experience building and maintaining developer-facing tooling and SDKs. He has deep expertise in JavaScript ecosystems, notably owning the Next.js SDK and contributing to Sentry’s widely used sentry-javascript and sentry repos, plus integrations for Vite, Esbuild and Rollup. Luca blends full-stack instincts with practical systems thinking—improving tracing, error handling, sourcemap tooling and loader compatibility across complex deployment environments. He’s comfortable working close to infrastructure and databases, having recently worked at Supabase (and learned to both appreciate and loathe the Postgres query planner). A pragmatic open-source contributor, he co-invented Debug IDs for JavaScript and has experience navigating security incidents and cross-team communication. Now at Braintrust, he continues to focus on shipping reliable developer tooling and subtle platform improvements that pay off at scale.
8 years of coding experience
6 years of employment as a software developer
Vienna University of TechnologyMatura, 2017, Matura, 2017 at Theresianische Akademie Wien
German, English, French
Stackoverflow
33reputation
1kreached
0answers
2questions
Github Skills (25)
javascript10
sentry10
tracer10
apidoc10
typescript10
nextjs10
sourcemaps10
api10
sdk10
front-end-development10
typescript-types10
error-handling10
typescripts10
trace10
react10
Programming languages (13)
Github contributions (5)
getsentry/sentry-javascript
Mar 2022 - Jan 2023
Official Sentry SDKs for JavaScript
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:1 release, 2008 reviews, 246 commits in 10 months
Contributions summary:Luca contributed to the Sentry JavaScript SDK by implementing and testing new features for API route handling. They addressed several issues, including adding support for CommonJS (CJS) API route exports and a mechanism to prevent unintentional transactions and errors. Their work also included instrumenting features such as Next.js server components. They enhanced the codebase to ensure tracing and error handling for various Next.js features, while addressing potential memory leaks, and code quality related to the front-end and back-end parts.
sentryerror-monitoringravenvuegreenhouse
getsentry/sentry-docs
Apr 2022 - Jan 2023
Sentry's documentation (and tools to build it)
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:393 reviews, 37 commits, 392 PRs in 9 months
Contributions summary:Luca primarily worked on the documentation and tooling for the Sentry documentation repository. Their contributions focused on integrating the Sentry JavaScript SDK, including configuration and loader scripts. They also made changes to various components and utilities to enhance error reporting, apply tags to errors, and improve the overall user experience, such as adding a background to inline code blocks in headings and improving the dropdown styling.
gatsbysentry-documentationgatsbyjssentrytag-production
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