Summary
Oleksii Kerpel is a Senior JavaScript developer based in Odesa with nearly a decade of experience building high-load React applications, headless CMS integrations, and performant e-commerce and travel platforms. He combines frontend craftsmanship — reusable component design, SSR adoption, and performance tuning that has reduced LCP/FCP by ~35% — with backend work on APIs and notifications, and has driven projects from estimation through delivery. Comfortable collaborating with non-technical stakeholders, he also raises code quality through testing (achieving 90% coverage on a notifications system) and shared component libraries. His background spans real-time features (WebRTC, video calls), search engineering, and measurable optimization wins such as a 0.6s page load for a coupon engine. Notably, he blends hands-on implementation with architecture and mentoring, making him effective on both greenfield and legacy modernization efforts.
9 years of coding experience