Senior Front-End Engineer (Next.js 16+)

Role Overview

We are seeking a Senior Front-End Engineer with deep expertise in Next.js 16+ to architect and deliver high-performance, secure, and scalable web applications. The ideal candidate has 5+ years of effective front-end experience working on complex, production-grade systems and demonstrates strong ownership of architecture, performance, and browser-level behavior.

Core Responsibilities

• Architect and develop large-scale applications using Next.js 16+ (App Router).
• Design systems and reusable component libraries aligned with accessibility and scalability standards.
• Implement modern rendering strategies (static, dynamic, streaming, PPR).
• Leverage Cache Components ("use cache"), revalidateTag(), updateTag(), and cache invalidation strategies effectively.
• Optimize navigation and prefetching strategies (layout deduplication, incremental prefetch).
• Integrate and optimize RESTful APIs with proper caching, error handling, and data consistency.
• Apply advanced browser performance optimization (hydration control, critical rendering path, reflow/repaint minimization).
• Ensure security best practices across Server and Client Components (XSS, CSRF, auth boundaries, RSC attack surface awareness).
• Collaborate with backend and DevOps teams on CDN, edge runtime, and caching-layer strategies.
• Lead code reviews, mentor engineers, and define engineering standards.

Required Technical Expertise

• Next.js 16+
• App Router architecture
• React Server Components (RSC)
• Client/Server boundary management (use client)
• Server Actions
• Advanced SEO techniques
• Cache Components ("use cache")
• Data cache control (revalidateTag, updateTag)
• Streaming & Suspense
• Partial Prerendering (PPR)
• Route groups, parallel routes, loading/error boundaries
• Proxy model (proxy.ts)
• Edge vs Node runtimes
• Advanced state management

React & TypeScript

• Advanced React patterns
• Hooks, context, composition patterns
• React Compiler awareness
• Strong TypeScript typing patterns for large codebases

Performance & Tooling

• Bundlers and build optimization
• Bundle analysis & performance profiling
• Hydration debugging & mismatch resolution
• Web Vitals optimization
• Lazy loading & code splitting strategies

Browser & Web Fundamentals

• Deep understanding of:
• Event loop & task queues
• Rendering lifecycle (layout, paint, compositing)
• Memory management
• Network layers & HTTP caching
• Accessibility (WCAG compliance)
• Modern CSS architecture & scalable styling systems

Security

• Secure RSC boundaries
• API layer protection
• Secure headers & CSP
• Authentication/authorization flows
• Awareness of framework-level vulnerabilities and patch management

Experience Requirements

• Minimum 5 years professional front-end development experience
• Proven involvement in complex, high-traffic, or mission-critical applications
• Demonstrated ownership of architectural decisions and performance improvements
• Experience building and maintaining design systems in production

Preferred

• Familiarity with distributed caching strategies (CDN, edge caching)
• CI/CD and deployment optimization experience
• Backend familiarity (Node.js, NestJS or similar)

If you tick all the boxes and this sounds like your kind of challenge, drop your details below. We're looking for our next frontend superstar.