Leonti Bielski
Software Engineer at Cash App
Melbourne, Victoria, Australia
Summary
👤
Senior🎓
Top SchoolLeonti Bielski is a seasoned software engineer with 12 years of experience building data-intensive systems and developer-facing tools, currently contributing at Cash App from Melbourne. He has deep backend expertise in Scala, Java and functional programming (Cats, Akka, Final Tagless) and practical experience operating systems on AWS, Kubernetes and Kafka clusters. At SEEK and MYOB he built robust Spark-based pipelines, Scala APIs and infrastructure automation for analytics and security synchronization. He pairs backend rigor with modern frontend work in React and TypeScript, reflecting a full‑stack pragmatism. His background spans startups and large products, with hands-on DevOps and identity work (OpenID/JWT) that’s as much about operational reliability as code elegance. Trilingual technical training across finance and software engineering gives him a systems-minded approach to solving complex business problems.
12 years of coding experience
10 years of employment as a software developer
Bachelor's degree, International Relations and Affairs, Bachelor's degree, International Relations and Affairs at Warsaw School of EconomicsMaster's degree, Software and Database Engineering, Master's degree, Software and Database Engineering at Polish - Japanese Institute of Information Technology
English, Polish, Russian, Spanish, Ukrainian
Github Skills (52)
screen-time8
webdriver7
appium7
ios7
windows7
android7
macos7
web-inspector6
test-automation6
automation6
grass6
remote-debugging6
selenium6
w3c5
data-capture5
Programming languages (6)
Github contributions (5)
Leonti/elm-time-picker
Dec 2016 - Jan 2017
Contributions:41 commits in 1 month
aluedeke/testobject-piranha-example
Apr 2015 - Aug 2015
Contributions:2 PRs, 6 pushes, 1 branch in 3 months
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