Verified recordSoftware Development

Serhii Ostapenko

Senior React Native Developer at Portside

Based in Warsaw, Poland

View on LinkedIn

7-day free trial · no credit card

Seniority

Staff

Department

Information Technology

Location

Warsaw

Industry

Software Development

Company size

212

Contact information

Reveal Serhii's email and phone

Direct contact data is gated. Sign up and reveal. You only pay for verified records.

1 credit

s•••••••@portside.aero

Phone

5 credits

+48 ••• •••• ••••

You only pay for valid records. Bounced emails and disconnected numbers cost nothing.

Background

About Serhii Ostapenko

I am a Senior React Native Developer with 10+ years of experience building high-quality mobile applications for iOS and Android. My expertise spans across React Native, React 19, TypeScript, JavaScript (ES6+), and modern development practices. Over the years, I have successfully delivered complex mobile solutions — from fintech platforms and e-commerce apps to enterprise tools — always focusing on performance, scalability, and user experience. I enjoy working closely with product teams to translate business goals into reliable technical solutions. Key strengths- Deep expertise in React Native, React 19, and modern JavaScript/TypeScript - Hands-on experience with native modules (iOS/Android)- Strong background in API integration (REST, GraphQL)- Performance optimization and CI/CD automation - Agile team collaboration and mentoring junior developers I am passionate about creating mobile products that deliver measurable value to businesses and seamless experiences to users.

Decision-makers

Other people at Portside

Browse the Portside team →

Build a list of verified contacts at Portside

Free for 7 days · 50 credits · no card · only pay for verified records.

Start free

Reach more buyers like Serhii

250M+ professionals with verified email and phone. You only pay for records that actually verify.

Start free, 50 credits See pricing

7-day trial · no credit card · cancel anytime