08/17/2023 updated
100 % available
Senior Product & Mobile Engineer / Delivery Owner | React Native, React, Node.js, TypeScript
Kyiv, Ukraine
Only remote
Computer ScienceAbout me
Senior product engineer focused on shipping and modernizing mobile and SaaS products. I own delivery across React Native, React, Node.js and TypeScript, from architecture and integrations to CI/CD, payments, analytics and app-store releases.
SupabaseAmazon Web ServicesPostgreSQLNode.jsPayment GatewayRelease EngineeringNext.jsTypeScriptReact.jsGoogle FirebaseBackendGraphQLReact NativeRestful Api
Senior Product & Mobile Engineer with 15+ years of commercial software development experience.
I focus on building, modernizing, and scaling mobile and SaaS products, with hands-on ownership across architecture, development, integrations, CI/CD, analytics, payments, and production releases.
Core expertise:
• React Native / Expo
• React.js / Next.js
• TypeScript / JavaScript
• Node.js
• REST APIs / GraphQL
• PostgreSQL / Supabase / Firebase / MongoDB
• AWS and cloud infrastructure
• GitHub Actions / GitLab CI
• CI/CD and release engineering
• iOS / Android production delivery
• App Store / Google Play releases
• SaaS and subscription-based products
• Payments, subscriptions, and billing integrations
• Analytics, attribution, and product instrumentation
• Third-party APIs and authentication
• Existing-product modernization and rescue
• Performance, reliability, testing, and technical debt reduction
I am particularly strong in projects where an existing product needs to be stabilized, extended, modernized, or prepared for reliable production growth.
Typical responsibilities include:
• Technical discovery and architecture
• React Native and web application development
• Backend/API integration
• Subscription and payment flows
• Analytics and attribution integrations
• CI/CD and release automation
• App Store and Google Play delivery
• Refactoring and modernization of existing systems
• Performance and reliability improvements
• Technical planning and engineering leadership
I work as an accountable senior engineer and technical delivery owner rather than only as an implementation resource.
When a project requires additional capacity, I can also involve trusted GBKSOFT engineers while remaining personally responsible for technical quality, communication, and delivery.
My preferred engagements are:
• Mobile and SaaS product development
• Existing-product rescue and modernization
• React Native / React / Node.js projects
• API-heavy and integration-heavy products
• Subscription and payment platforms
• Long-term product engineering engagements
Available for remote projects and long-term collaboration.
Experience
Professional experience10+ years
Freelancer since2007
Languages
EnglishGoodRussianFluentUkrainianNative speaker