Anastasiia Lopatina
Software Engineer at JetBrains
Amsterdam, North Holland, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolAnastasiia Lopatina is a software engineer with 11 years of experience, currently building developer tools and products at JetBrains in Amsterdam. She has a strong background in web and full‑stack engineering from roles at GoDaddy, Namecheap, CSSSR and others, with a track record of shipping production-ready features across domains. Anastasiia is an active open-source contributor to the widely used date-fns JavaScript library, where she migrated core utilities to TypeScript and added locale-aware formatting features. Her work reflects a pragmatic balance of modern tooling, type safety, and test-suite improvements that improve library correctness for global users. Trained in information and computer technology, she combines engineering rigor with hands-on contributions that benefit both applications and developer ecosystems. Colleagues describe her as detail-oriented and effective at converting ambiguous requirements into robust, maintainable code.
11 years of coding experience
7 years of employment as a software developer
Bachelor's degree, Information and computer technology, Bachelor's degree, Information and computer technology at Ulyanovsk State Technical University
Github Skills (11)
typescript10
javascript10
typescripts10
typescript-types10
date-fns10
testing10
internationalization9
kernel-module8
utilities8
jsmodules8
go-modules8
Programming languages (3)
Github contributions (5)
date-fns/date-fns
Feb 2021 - Oct 2021
⏳ Modern JavaScript date utility library ⌛️
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:24 reviews, 28 commits, 16 PRs in 8 months
Contributions summary:Anastasiia primarily contributed to the `date-fns` library by migrating several utility functions to TypeScript, including `isYesterday`, `isWeekend`, `isWednesday`, `startOfWeek`, and `subBusinessDays`. They also added new functionality with the implementation of the `intlFormat` function and updated the test suite with locale detection and enhancements. The commits involved modifying existing code, adding new features, and updating build configurations.
date-fnsjavascriptnodejsmodern-javascriptutilities
rikkalo/date-fns
Jan 2021 - Jul 2021
⏳ Modern JavaScript date utility library ⌛️
Contributions:46 pushes, 7 branches in 5 months
jsdate-fnsjavascriptmodern-javascripttypescript
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