Ondrej Valenta
Owner Lector Programmer Dictator (mainly)
Prague, Prague, Czechia
Summary
👤
Senior🎓
Top SchoolOndrej Valenta is a pragmatic entrepreneur and senior software engineer based in Prague, leading KEEN|MATE as owner, mentor and principal developer with over 15 years of C# and ASP.NET experience and a deep history in SharePoint and SQL Server. He builds full-stack solutions—from Vue/Svelte frontends and ASP.NET Core backends to Elixir/Phoenix real-time systems—while also developing internal tools like an Ecto generator and performance-focused AdminLTE variants. Ondrej combines hands-on architecture, database design and performance tuning with CI/CD and observability practices (Docker, Drone, Graylog, Prometheus) to deliver applications used daily by thousands. He’s equally invested in teaching: he founded an apprenticeship program and has mentored high-school students into professional developers. Comfortable across Windows and CentOS environments, he prefers pragmatic, high-performance stacks and often chooses less common technologies (Elm, Elixir) when reliability and speed matter. Colleagues describe him with playful confidence; beyond coding he’s built a small, tightly knit team that mirrors his teaching-first approach.
10 years of coding experience
11 years of employment as a software developer
High School, IT Technologies, High School, IT Technologies at SPS Kratochvilova 7, Ostrava
English
Stackoverflow
334reputation
91kreached
13answers
1question
Github Skills (197)
sockjs10
docker-compose10
webapp10
docker-stack10
csom10
reactive9
mapper9
database9
sentence9
websocket9
entity-framework9
responsive9
poco9
docker9
dotnet-core9
Programming languages (14)
Github contributions (5)
KeenMate/EETWrapper
Aug 2016 - May 2019
Contributions:2 PRs, 60 pushes, 1 branch in 2 years 9 months
eetdotnetcsharp
KeenMate/fluently-projects
Apr 2017 - Oct 2024
Projects templates for easier and faster project startups
Contributions:19 pushes, 1 branch in 7 years 7 months
templateboilerplatefaster
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