Serhii Petrenko
Senior Software Engineer at NuggMD
Lviv, Lviv Oblast, Ukraine
Summary
👤
Senior🎓
Top SchoolSerhii Petrenko is a Senior Software Engineer with nine years of hands-on experience building and modernizing Ruby/Rails applications across e-commerce, fintech, and SaaS domains. He specializes in backend systems (Rails, Sinatra, Grape) and microservices, has upgraded and stabilized numerous services (including multi-service Ruby version bumps), and has driven performance and architectural decisions that improved reliability at scale. Comfortable across the full stack, he pairs Rails expertise with modern frontend frameworks (Ember, Vue, React) and practical ops knowledge—Kubernetes, Kafka, Sidekiq, Redis, and PostgreSQL—used to ship resilient distributed systems. Notably, he increased test coverage from zero to 95% on a mature e-commerce codebase and consolidated 15 product variants into a single maintainable codebase. Based in Lviv, Ukraine, Serhii blends disciplined SDLC practices with a continuous-learning mindset and a background in cybersecurity training from military service.
9 years of coding experience
7 years of employment as a software developer
Master's degree Social pedagogy, Master's degree Social pedagogy at Bohdan Khmelnytsky National University of Cherkasy
Украинский, Английский
Stackoverflow
330reputation
14kreached
3answers
4questions
Github Skills (33)
entity-relationship10
relationship9
hound8
entity8
mermaid7
android-permissions6
react6
android6
androidmanifest6
adapter6
coil6
rails6
continuous-integration6
ruby6
java6
Programming languages (3)
Github contributions (5)
serjpetrenko/ruby-rails-course
Nov 2016 - Jun 2022
Contributions:4 PRs, 38 pushes, 1 branch in 5 years 8 months
ruby-on-railsmastersrailsrubymasters-academy
serjpetrenko/sinatra_simple_blog
Jan 2017 - Mar 2019
Sinatra blog
Contributions:6 PRs, 48 pushes, 3 branches in 2 years 1 month
railssinatraruby
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