Kamil Ondrák
Senior Kotlin Developer at Deutsche Börse
Prague, Czechia
Summary
👤
Senior🎓
Top SchoolKamil Ondrák is a Senior Kotlin Developer with 11 years of experience building low-latency, high-throughput trading systems that operate 24/7 and power European energy markets. He progressed from Java backend work to a Kotlin-only codebase, designing microservices, Protobuf/WebSocket APIs, and fault-tolerant platforms deployed on GKE with Kafka-driven integrations. At Deutsche Börse he has split monoliths into performant Kotlin services and works closely with market operations to ensure real-world trading scenarios are accurately modeled. Comfortable across the full backend stack — from PostgreSQL and messaging (RabbitMQ/Kafka) to containerized deployments — he prefers regular full-time roles on technically interesting projects rather than B2B offers. Colleagues know him as an engineer who balances pragmatic maintenance of mission-critical systems with a continual appetite for learning and architectural improvement.
11 years of coding experience
14 years of employment as a software developer
Master's degree, Master's degree at Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering
Czech, English, French
Github Skills (77)
midi10
audio10
vst10
lv210
jack10
highcharts9
bing9
gnome-shell9
android-app9
music8
timezone8
ubuntu8
shell-extension8
discord8
gnome8
Programming languages (7)
Github contributions (5)
kejml/fyx
Apr 2020 - Apr 2020
📣 🇨🇿 Unofficial Nyx.cz client for iOS (Android coming soon)
Contributions:2 commits, 33 pushes, 52 branches in 1 day
coming-soonios-androidandroidnyxios
kejml/aoc2021
Dec 2021 - Jan 2022
Contributions:29 pushes, 1 branch in 1 month
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