Oleksandr Onopchenko
Software Developer at PrivatBank
Kyiv, Ukraine
Summary
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SeniorOleksandr Onopchenko is a backend-focused software developer with 9 years of experience building Go-based microservices and high-performance systems, currently contributing to PrivatBank’s Privat24 and Liqpay services from Kyiv. He has deep practical knowledge of SQL and NoSQL databases (Postgres, MariaDB, MongoDB, Redis), messaging (NATS), and containerized CI/CD pipelines, and has shipped production integrations with payment gateways and Web3 platforms. His background spans fintech, healthcare, crypto arbitrage and game development, demonstrating an ability to move between regulated financial systems and cutting-edge Web3 tooling. Oleksandr often pairs unit-tested, production-grade Go services with real-time messaging and DB tuning to maximize reliability and throughput. He also builds Telegram mini-apps and Discord integrations, reflecting a penchant for high-touch integrations and developer-facing automation. Beyond code, he brings a pragmatic focus on observability and fault-tolerant design learned from operating payment and trading systems in live environments.
9 years of coding experience
5 years of employment as a software developer
Russian, English, Ukrainian
Github Skills (28)
server-side-rendering9
language-server9
templating9
htmx8
programming-language8
golang8
go7
interpreter6
compiler5
telegram-bot5
discovery5
hardware5
intercept4
telegram4
wake-on-lan3
Programming languages (4)
Github contributions (5)
Rimas-Role-Play/returnHWID-Arma
May 2019 - May 2021
Contributions:11 releases, 29 pushes, 1 branch in 1 year 11 months
FairyTale5571/ExileServer_SalePack
Jun 2022 - Sep 2022
Completely ready Exile server for the starting!
Contributions:13 commits, 8 PRs, 9 pushes in 2 months
exile
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