Andrii Nyzhnyk
Lead Back-end Engineer at Flash Payments
Lviv, Lviv Oblast, Ukraine
Summary
👤
Senior🎓
Top SchoolAndrii Nyzhnyk is a Lead Back-end Engineer with nine years of experience building reliable web systems and leading teams from Lviv, Ukraine. He moved from freelance front-end work into backend leadership, progressing to Head of Web Development and now guiding backend architecture at Flash Payments. Andrii focuses on trusted software and distributed systems, favoring TypeScript, PostgreSQL/SQL, GraphQL and cloud-native deployments while enjoying experimenting with less common technologies. He contributes to open-source projects like hapi-swagger, improving code quality and modernizing deprecated patterns to boost maintainability. With a master’s background in Cyber Security Management, he brings a security-minded approach to system design and team practices. He’s looking for collaborative teams where he can keep learning upstream technologies and drive dependable production systems.
9 years of coding experience
5 years of employment as a software developer
Master's degree, Cyber Security Management, Master's degree, Cyber Security Management at Lviv Polytechnic National University
Github Skills (7)
hapi10
javascript10
refactoring10
refactor10
apidoc9
api9
documentation8
Programming languages (2)
Github contributions (5)
hapi-swagger/hapi-swagger
May 2022 - Jun 2022
A Swagger interface for hapi
Role in this project:
Back-end Developer
Back-end DeveloperContributions:5 reviews, 62 commits, 18 PRs in 1 month
Contributions summary:Andrii primarily focused on refactoring and improving the codebase, specifically addressing code style and efficiency. They replaced deprecated functions with native implementations and fixed JSDoc definitions, contributing to code maintainability. Furthermore, they updated and simplified several functions across multiple files, demonstrating a focus on code quality and readability within the project.
swaggerhapi
sirDonger/sirdonger.github.io
Nov 2017 - Feb 2018
Contributions:60 commits in 3 months
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