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

Splash Software LLC

United Arab Emirates · Full-time · Not Applicable

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 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)

Key Skills

Ranked by relevance

server react design systems restful apis typescript devops css seo

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