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:

o Event loop & task queues

o Rendering lifecycle (layout, paint, compositing)
o Memory management

o 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 of 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)

Originally posted on Himalayas