Stanisław Małolepszy
Software Engineer at Google
Warsaw, Masovian Voivodeship, Poland
Summary
🤩
Rockstar🎓
Top SchoolStanisław Małolepszy is a product-oriented software engineer with 17 years of experience building localization-first systems, currently at Google after leading Project Fluent at Mozilla. He spans low-level implementation to high-level architecture, shipping production-ready solutions in JavaScript, Python, and Rust and driving integrations across Firefox, React, and web platforms. His open-source work includes authoring Fluent syntax and implementations used to migrate over 200,000 translations and to localize large parts of Firefox, plus contributions to notable projects like Intl.js and Pontoon. Comfortable in both backend and front-end roles, he’s implemented GraphQL APIs, core formatting logic, and message resolution engines while refining developer-facing specs. Based in Warsaw, he combines technical depth with product instincts—knowing how to push projects from 90% to the final 10% that users notice. Outside work he builds multiplayer games for friends, reflecting a pragmatic focus on shipping delightful, social experiences.
17 years of coding experience
13 years of employment as a software developer
École Supérieure de Commerce Et de Management - ESCEMMaster, Quantitative Methods in Economy and Information Systems, Master, Quantitative Methods in Economy and Information Systems at SGH Warsaw School of Economics
Stackoverflow
766reputation
13kreached
15answers
0questions
Github Skills (42)
javascript10
number-formatting10
rails-i18n10
translation10
python10
apidoc10
django10
number-format10
internationalization10
globalization10
localization10
ember-i18n10
front-end-development10
api10
specification10
Programming languages (21)
Github contributions (5)
projectfluent/fluent.js
Feb 2017 - Sep 2020
JavaScript implementation of Project Fluent
Role in this project:
Front-end Developer
Front-end DeveloperContributions:66 releases, 2 reviews, 646 commits in 3 years 8 months
Contributions summary:Stanisław primarily contributed to the JavaScript implementation of Project Fluent, focusing on features related to internationalization and localization. Their commits include adding and removing code related to serialization, AST parsing, and the integration of new FTL features, highlighting a strong focus on the core functionality and internal architecture of the library. They also made changes related to testing and resolving components.
l10ntranslationinternationalizationicui18n
projectfluent/fluent
Jan 2017 - Aug 2020
Fluent — planning, spec and documentation
Role in this project:Technical Writer & Language Designer
Technical Writer & Language DesignerContributions:12 releases, 252 commits, 191 PRs in 3 years 7 months
Contributions summary:Stanisław primarily contributed to the project by adding extensive documentation in the form of a guide to the Fluent syntax and also wrote example usage, covering a range of concepts. They also contributed code examples related to the FTL syntax, including syntax definitions in ASDL and EBNF. The contributions include examples for both FTL and ASDL, specifically around pattern matching, string interpolation, and built-in functions, demonstrating a good understanding of the localization domain. They also performed several refactors and syntax adjustments, including the usage of W3C EBNF, ensuring that the syntax conforms to industry standards and best practices.
l10nftlspecificationtranslationinternationalization
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