Andrii Los
CEO, Co-Founder at Genery
Krakow, Lesser Poland Voivodeship
Summary
🤩
Rockstar🎓
Top SchoolAndrii Los is a seasoned software leader and entrepreneur with 10 years of experience building high-performance web platforms and developer tooling, now CEO and Co‑Founder of Genery based in Krakow. He has led engineering and founding roles at Perplexity, Revolut, and multiple startups, delivering large build and runtime performance wins (e.g., 90% render reduction, CI/build times cut by orders of magnitude) and introducing observability, monorepo strategies, and robust DX practices. Hands-on across frontend and backend, he’s implemented migrations to Bazel, Turborepo/PNPM, GraphQL type-safety, and ESM-native builds while also shipping UI kits, Storybook setups, and Playwright e2e pipelines. An active open-source contributor, he maintains a popular React EasyMDE wrapper where he modernized SSR support and migrated to hooks and EasyMDE for long-term maintainability. Beyond engineering, he blends product instincts with operational rigor—coaching teams, hiring QA automation, and turning performance bottlenecks into repeatable processes. Outside work he’s unusually balanced: a former tenor and avid singer who also competes in padel and follows F1.
10 years of coding experience
12 years of employment as a software developer
Y CombinatorMaster's degree Software Engineering, Master's degree Software Engineering at Dnipro University of TechnologyJr. Specialist Network and System Administration, Jr. Specialist Network and System Administration at Dnepropetrovsk Industrial College
English, Russian, Ukrainian, Romanian, Polish
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (12)
component-development10
markdown10
editors10
typescript10
javascript10
typescripts10
markdown-it10
editor10
react10
typescript-types10
html8
css6
Programming languages (11)
Github contributions (5)
RIP21/react-dev-environment
Sep 2017 - Sep 2020
My React development boilerplate
Contributions:34 PRs, 42 pushes, 7 branches in 3 years
reactreact-boilerplatereact-app-rewiredboilerplatereact-development
RIP21/ts-get
Mar 2019 - May 2021
Alternative to lodash.get that makes it typed and cool as if optional typing proposal is there (deprecated, use ts-optchain, or real optional chaining)
Contributions:6 releases, 25 commits, 9 PRs in 2 years 2 months
optional-chainingtypescript-definitionslodashjavascriptchaining
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