Leonid Fenko
Frontend Developer at Exactly.ai
Belgrade, Central Serbia
Summary
👤
Senior🎓
Top SchoolLeonid Fenko is a frontend developer with over 7 years of commercial React and TypeScript experience and a decade in software engineering, specializing in both client- and server-rendered applications and custom build tooling. He has shipped products ranging from high-traffic consumer apps to internal CMS and subscription services, and recently implemented real-time chat and canvas UIs using websockets and Server Components at exactly.ai. An open-source author—creator of react-router-typesafe-routes with 16k weekly downloads—he brings a strong emphasis on type safety, Zod validation, and performant rendering. Comfortable leading small distributed teams, he pairs practical engineering (Webpack/Vite, Tailwind, MJML) with hands-on system design, and outside work he tinkers with Arduino and 3D printing, reflecting a maker’s approach to problem solving.
10 years of coding experience
5 years of employment as a software developer
Bachelor's degree, Computer Software Engineering, Bachelor's degree, Computer Software Engineering at MIREA (Russian Technological University)
Stackoverflow
223reputation
16kreached
1answer
1question
Github Skills (77)
prosemirror10
wysiwyg10
routes10
apollo10
recycle10
validation10
editorjs10
joi10
rich-text10
router10
tiptap10
pulse10
nested-routes10
draft-js10
vue10
Programming languages (4)
Github contributions (5)
fenok/react-router-typesafe-routes
Jun 2021 - Jan 2023
Enhanced type safety via validation for all route params in React Router v7.
Contributions:10 releases, 181 commits, 76 PRs in 1 year 7 months
reactvalidationvalidationsnested-routesroutes
c7s/react-boilerplate
Aug 2018 - Aug 2019
Opinionated 🖤 React-Typescript-Apollo Boilerplate
Contributions:619 commits, 82 pushes, 6 branches in 1 year
reactboilerplatejestgraphqlreact-typescript
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