Senior / Staff (8+ Years Experience)
Hire Senior Frontend Performance & Core Web Vitals Engineers
Hire performance engineers who eliminate hydration jank, prune JavaScript bundles, and boost conversion rates with sub-second page speeds.
Technical Craft
Core Competencies & Architectural Rigor
What sets our senior senior frontend performance & web vitals engineer talent apart: deep domain fundamentals, zero-rework architecture, and proven delivery track records.
Core Web Vitals Optimization
Diagnosing and fixing Largest Contentful Paint (LCP), Interaction to Next Paint (INP), and layout shifts (CLS).
Bundle Size Pruning & Tree-Shaking
Analyzing webpack/rollup bundles to eliminate duplicate libraries and defer non-critical scripts.
Edge Caching & Streaming SSR
Configuring edge CDNs and React Server Components to stream HTML within 30ms of request.
Proven Delivery
What Our Senior Frontend Performance & Web Vitals Engineer Ships
Our engineers take end-to-end responsibility for critical milestones, unblocking your roadmap without requiring micro-management.
Boosting Google PageSpeed Mobile score from 38 to 96+
Production-ready, tested, and documented implementation.
Slashing client JavaScript bundle size by 65% with Server Components
Production-ready, tested, and documented implementation.
Eliminating main-thread freezing and optimizing Interaction to Next Paint (INP)
Production-ready, tested, and documented implementation.
Edge-rendering personalization with sub-50ms Time to First Byte (TTFB)
Production-ready, tested, and documented implementation.
Technology Stack & Tooling Mastery
Primary frameworks, languages, and cloud systems utilized in production:
Web & frontend
Frontend engineering that pays for itself: Core Web Vitals in the green, accessibility to WCAG, and replatforms shipped route by route with no freeze.
Explore Web & frontend →Frequently Asked Questions
Questions About Hiring a Senior Frontend Performance & Web Vitals Engineer
How do you debug slow Interaction to Next Paint (INP) issues?
We use Chrome DevTools performance traces to identify long JavaScript tasks (> 50ms) and break them up using React startTransition and scheduler APIs.
How does frontend speed directly affect revenue?
Industry data consistently proves that every 100ms latency reduction increases e-commerce checkout conversions by 1% to 2%.
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Ready to add a senior senior frontend performance & web vitals engineer to your team?
Schedule a 30-minute discovery call. We review your requirements and deploy senior engineers within 14 days.