Florian Loitsch
Software Engineer at Meta
Aarhus Municipality, Central Denmark Region, Denmark
Summary
🤩
Rockstar🎓
Top SchoolFlorian Loitsch is a software engineer with 15 years of experience combining language design, compiler work and systems-level optimization. He was a long-time contributor and leader on Dart and V8 at Google, later co-founding Toit to bring lightweight software to constrained devices, and has recent roles improving V8/RISC-V ports and at Meta. Florian’s open-source contributions show deep attention to correctness and maintainability—refactoring core libraries, improving async test behavior, and hardening numeric conversion code for ASAN. He specializes in localization/internationalization and backend tooling, having improved Dart’s intl, http, test and pub ecosystems. With a PhD in computer science, he blends research-level rigor with pragmatic engineering and a track record of shipping language and runtime features used by large developer communities. An understated strength is his habit of turning subtle internal API changes (like method→getter refactors) into lasting improvements for ecosystem clarity and reliability.
15 years of coding experience
16 years of employment as a software developer
Doctor of Philosophy - PhD Computer Science, Doctor of Philosophy - PhD Computer Science at Université Côte d'AzurMaster's degree Computer Science, Master's degree Computer Science at ESSI
Github Skills (27)
asynchronous10
c-language10
strings10
async10
testing10
text-manipulation10
http10
internationalization10
refactor10
localization10
optmization10
performance-optimization10
optimisation10
i18next10
refactoring10
Programming languages (6)
Github contributions (5)
dart-lang/pub
Oct 2012 - May 2015
The pub command line tool
Role in this project:
Back-end Developer
Back-end DeveloperContributions:61 commits, 16 comments, 15 issues in 2 years 6 months
Contributions summary:Florian primarily focused on refactoring and improving the codebase's internal structure within the Dart programming language, including getter conversions. The changes include modifications to the hashCode implementation across several core data structures such as YamlMap, PackageId, and Version. The user also implemented new methods within the codebase, along with code changes that involved features like hasNext, isEmpty, and various methods.
fluttercommand-line-tooldartpackage-manager
google/double-conversion
May 2015 - May 2018
Efficient binary-decimal and decimal-binary conversion routines for IEEE doubles.
Role in this project:Back-end Developer
Back-end DeveloperContributions:30 commits, 21 PRs, 16 pushes in 3 years
Contributions summary:Florian primarily focused on the refactoring and optimization of the double-conversion library. Their contributions included merging branches, correcting code to avoid negative shifts and undefined casts to satisfy ASAN, and adding tests and assertions. The user also modified the include statements and renamed macros for improved project compatibility and maintainability.
precisiondecimalroutinesieeeconversion-routines
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