Matej Leško
Frontend Tech Lead at Ventrata
Brno, Southeast, Czechia
Summary
👤
Senior🎓
Top SchoolMatej Leško is a Frontend Tech Lead with a decade of experience building high-impact web applications using Svelte, React, and Vue, and transitioning teams from REST to typed GraphQL APIs. He combines hands-on engineering with people leadership—hiring, mentoring, and improving frontend health—having cut app bundle size by 72% and increased automated tests fivefold at a previous employer. As a freelancer and consultant he pairs frontend expertise with middleware and DevOps experience (GraphQL-yoga, AWS, CI/CD) and prefers B2B, part-time contractor engagements. Curious across IT domains, he proactively applies cross-disciplinary skills from backend, testing and product to accelerate delivery and reduce technical risk. Based in Brno, he balances continuous self-improvement and communication skills with practical delivery, and asks for clear, algorithm-free interview processes and competitive contracting terms.
11 years of coding experience
7 years of employment as a software developer
Magistr (Mgr.), SSME, 1, Magistr (Mgr.), SSME, 1 at Masarykova univerzita BrnoBachelor's degree, Informační technologie, Bachelor's degree, Informační technologie at Vysoké učení technické v Brně
Czech, English, nemčina
Stackoverflow
21reputation
935reached
1answer
1question
Github Skills (95)
apollo-client10
graphql-client10
apollographql9
styled-components9
caching9
react9
frontend9
graphql9
vscode-extension9
typescript9
vue9
compiler8
angular8
javascript8
web-development8
Programming languages (8)
Github contributions (5)
DarkEye123/grey-hack
Oct 2020 - Aug 2025
Contributions:8 pushes, 1 branch in 4 years 10 months
DarkEye123/ventrata-checkout-injector
Sep 2023 - Mar 2026
Extension making Ventrata DEV & QA Checkout flow easier
Contributions:8 PRs, 24 pushes, 9 branches in 2 years 6 months
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