Stepan Miliaev
Lead Software Engineer at Sievo
Helsinki, Mainland Finland
Summary
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SeniorStepan Miliaev is a lead software engineer based in Helsinki with over a decade of hands-on full‑stack experience, building reliable systems from backend services to responsive frontends. He has led teams and product negotiations while architecting solutions in .NET (C#), Go, SQL, and TypeScript/React for clients ranging from banks to telecoms and diamond producers. Known for turning complex, frequently changing business requirements into maintainable architectures, he has delivered systems that enabled high-volume operations such as daily bank account onboarding and production widget platforms used by multiple customers. His work blends pragmatic backend design (EF Core, Kafka/RabbitMQ, ClickHouse) with frontend decoupling patterns and server-side rendering, enabling parallel team workflows. At Sievo he now applies this cross-disciplinary experience to drive technical direction and team delivery. A practical problem solver, he often prototypes APIs and SDKs that later evolve into production-grade platforms.
12 years of coding experience
19 years of employment as a software developer
English, Russian, Swedish
Github Skills (8)
usb10
keyboard10
rp20409
atmel9
firmware9
arm9
avr8
qmk6
Programming languages (2)
Github contributions (5)
thorgnir/qmk_firmware
Mar 2020 - Jan 2021
Open-source keyboard firmware for Atmel AVR and Arm USB families
Contributions:17 pushes in 9 months
rp2040firmwareavratmelusb
thorgnir/geekhack-nord-usercss
Jan 2021 - Jan 2021
Contributions:9 pushes, 1 branch in 3 days
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