Jonáš Holcner
Senior Engineer at Tatum
Brno, South Moravia, Czechia
Summary
👤
Senior🎓
Top SchoolJonáš Holcner is a Senior Frontend Engineer with 11 years in software development and over 8 years specializing in scalable, user-focused web applications using React and TypeScript. He has built complete component suites and a metadata-driven framework for automating form and table generation on large SPAs, demonstrating a strong focus on maintainable code, performance, and consistent UI design. His background includes contributing to SAPUI5 controls during SAP’s cloud transition and end-to-end work on accounting software at Seyfor, showing fluency across enterprise and product-focused contexts. Based in Brno, he combines academic grounding from Brno University of Technology with practical experience in small teams and large organizations, often bridging frontend engineering with QA, UX, and product to ship polished, production-ready features.
11 years of coding experience
9 years of employment as a software developer
Biskupské gymnázium BrnoMaster's degree, Information Technology, Master's degree, Information Technology at Brno University of Technology
English, Czech
Github Skills (55)
timers10
tuya10
css-in-js10
css10
drag-and-drop10
firmware10
drag10
styled-components10
ota10
knx10
tasmota10
esp826610
automation10
esp3210
sortable10
Programming languages (5)
Github contributions (5)
jojkos/ufobal-web
Jul 2020 - May 2023
Informační Systém Ufobalu
Contributions:2 pushes in 2 years 10 months
jojkos/testReactReduxApp
Jul 2019 - Aug 2022
Contributions:1 push, 2 branches in 3 years 1 month
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.