Sergiy Seletskyy
Technical Lead at Riverside
Odesa, Odesa Oblast, Ukraine
Summary
👤
Senior🎓
Top SchoolSergiy Seletskyy is a technical lead with 11 years of cross-disciplinary experience delivering frontend-first products and leading engineering teams across startups and enterprises. He specializes in JavaScript/TypeScript, React, functional programming and test-driven practices, and has repeatedly moved teams from legacy stacks to modern, testable architectures. As a hands-on leader he has led frontend and Ruby teams at companies like Catawiki, Coinbase and Rocket Fuel, and recently served as Frontend Lead at Coinrule before joining Riverside. Sergiy is also an experienced mentor and public speaker (OdessaJS, JSLab, WebCamp), running JavaScript TDD masterclasses that reflect his emphasis on developer craft and process improvement. He combines product-minded leadership—optimizing Jira workflows and sprint cadence—with deep implementation skills, from Kubernetes-backed deployments to declarative testing. An unusual thread through his career is a parallel background in audio composition and commercial audio production, which informs his attention to detail and creative problem solving.
11 years of coding experience
16 years of employment as a software developer
Master's degree Computer Science, Master's degree Computer Science at Odessa State Environmental Universitypassed English courses, passed English courses at Institute of methods of teaching foreign languages at the Academy of Pedagogical Sciences of UkraineDiploma of Education Commercial Audio Production, Diploma of Education Commercial Audio Production at SKVOT
English, Russian, Ukrainian
Stackoverflow
16,574reputation
3.4mreached
84answers
20questions
tdd
top-5%
ruby
top-5%
postgresql
top-5%
git
top-5%
ruby-on-rails
top-5%
filter
top-5%
Github Skills (72)
svg10
javascript10
html10
localstorage10
sidekiq9
warnings9
postgresql9
ruby9
heroku9
ruby-on-rails9
cordova9
npm9
facebook9
database-schema9
git9
Programming languages (3)
Github contributions (5)
sseletskyy/storybook-puppeteer-declarative-testing
Aug 2018 - Oct 2020
Declarative testing of isolated React components using storybook as a renderer and puppeteer+jest as a test runner
Contributions:58 commits, 14 PRs, 30 pushes in 2 years 2 months
reactjsdomjesttestingpuppeteer
catawiki/readmelinks
Jun 2020 - Jul 2021
Helper tool to find all nested README.md files, generate links to them and insert those links to the root README.md
Contributions:2 releases, 12 PRs, 27 pushes in 1 year
helper-toollinksmd-filesinsertroot
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