Jany Koščo
Principal Engineer at Productboard
Prague, Prague, Czechia
Summary
👤
Senior🎓
Top SchoolJany Koščo is a Principal Engineer based in Prague with 12 years of experience building reliable, user-focused web platforms and leading engineering organizations through rapid growth. He combines deep hands-on expertise in PHP, Go, and Python with a strong sense of UX and a track record of transforming systems for scale and stability, most notably growing Footshop’s R&D from 5 to ~35 engineers and mentoring multiple team leads. At Productboard he has progressed through leadership and senior technical roles to drive architecture and delivery excellence. He contributes to open-source front-end reliability work—improving form persistence in the Sisyphus library—which reflects his attention to edge cases and resilience. Pragmatic and curious, he pairs product empathy with engineering rigor to ship dependable experiences.
13 years of coding experience
13 years of employment as a software developer
Master of Science (M.Sc.), Information systems and technology, Master of Science (M.Sc.), Information systems and technology at University of Economics, Prague - Faculty of Informatics and StatisticsBachelor of Science (B.Sc.), Informatics, Bachelor of Science (B.Sc.), Informatics at Žilinská univerzita
Slovak, English, German
Stackoverflow
2,468reputation
233kreached
54answers
3questions
json
top-5%
go
top-5%
Github Skills (13)
localstorage10
javascript10
jquery10
go9
html9
json9
assertion6
php6
airflow6
twig6
python6
symfony6
testing6
Programming languages (13)
Github contributions (5)
simsalabim/sisyphus
Sep 2013 - Oct 2013
Gmail-like client-side drafts and bit more. Plugin developed to save html forms data to LocalStorage to restore them after browser crashes, tabs closings and other disasters.
Role in this project:
Front-end Developer
Front-end DeveloperContributions:7 commits in 22 days
Contributions summary:Jany primarily worked on improving the Sisyphus library, which focuses on saving form data to local storage. Their contributions involved fixing bugs related to multi-checkbox handling and ensuring proper reinitialization of forms loaded via AJAX. These changes demonstrate a focus on improving the reliability and functionality of the library by addressing edge cases and ensuring seamless data persistence. Further changes include version updates and code formatting.
gmailhtml-formlocalstorage
s7anley/redis-sentinel-docker
Apr 2016 - Jul 2018
Dockerfile for Redis Sentinel
Contributions:28 commits, 5 PRs, 28 pushes in 2 years 2 months
dockerfileredis-sentineldockerredis
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