Feb 2026 — Present
Freelance Product Engineer
Ruby on Rails · Turbo · Stimulus
Helping companies build and launch products end-to-end, including DOU's IT jobs & salary platform and the WAWTech event platform.
About
Eight years turning ideas into production software.
I am a Product Engineer focused on Ruby on Rails, Flutter and AI-assisted product development. I work across the stack and take responsibility for the product as a whole.
How I work
I specialize in full-stack development with Ruby on Rails and Flutter, allowing me to deliver web and mobile applications as a single engineer.
I prefer short feedback loops: build a useful version, put it in front of users, learn from the result and iterate.
I also use AI agents and automation to remove repetitive work and improve development speed without sacrificing engineering quality.
My QA background shaped my approach to usability, structure and reliability from the earliest stages of a product.
Experience
Sep 2024 — Feb 2026
Full Stack Developer — Infinum
Ruby on Rails · Turbo · Stimulus
Maintaining and developing customer Rails applications, contributing to internal and open-source Rails projects, and sharing technical knowledge with the team.
Mar 2022 — Aug 2024
Ruby on Rails Developer — Velory
Rails monolith · Rails API
Maintained a Rails monolith while migrating business logic toward an API architecture, developed new features, provided code support and mentored developers.
Aug 2021 — Feb 2022
Ruby on Rails Developer — Rocket Food Delivery
Developed features for a Rails API-based food delivery platform, supported the codebase and mentored developers.
May 2019 — Aug 2021
Ruby on Rails Developer — DataArt
Built web applications, scrapers and structured data processing systems.
Jun 2016 — Apr 2019
Ruby on Rails Developer — Push
Built web applications with real-time chat, web scrapers and Facebook bots.
Jan 2016 — May 2016
Ruby on Rails Developer — Freelance
Created web applications and scraping systems.
Jun 2012 — Oct 2013
QA Engineer — Nix Solutions Ltd
Tested web applications and developed a foundation in usability, reliability and structured testing.
Technical skills
Backend
Ruby, Ruby on Rails, RSpec, Minitest, REST APIs, ActionCable, PostgreSQL, Redis
Frontend
JavaScript, Stimulus, Turbo, HTML, CSS, SASS, jQuery, React
Mobile
Flutter, Dart, API-driven mobile applications
AI
LLM APIs, AI agents, AI-assisted development and automation
Infrastructure
Linux, Docker, Nginx, AWS, Cloudflare, GitHub, Bitbucket
Data
PostgreSQL, Redis, Elasticsearch, Mechanize, Capybara, web scraping
Education
V. N. Karazin Kharkiv National University
Mechanics and Mathematics Faculty · Magister · 2005–2010