Senior Front-End Engineer Next Js 16

Splash Software LLC.; Dubai; On-site; AED 380,000 - 700,000; Full time

Job summary

Splash Software LLC. in Dubai seeks a Senior Front-End Engineer with deep expertise in Next.js 16+ to architect and deliver high-performance, secure, and scalable web applications.

You bring 5+ years of front-end experience and ownership of architecture, performance, and browser-level behavior. You will design systems, build reusable components, optimize rendering and caching, ensure accessibility and security, and collaborate with backend, DevOps, and design teams.

Qualifications

• Minimum 5+ years of professional front-end development experience.
• Experience building complex, high-traffic applications in production.
• Ownership of architectural decisions and performance improvements.
• Experience building and maintaining design systems in production.

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 and cache invalidation strategies effectively.
• Optimize navigation and prefetching strategies.
• Integrate and optimize RESTful APIs with proper caching, error handling, and data consistency.
• Apply advanced browser performance optimization techniques.
• Ensure security best practices across Server and Client Components.
• Collaborate with backend and DevOps on CDN, edge runtime, and caching-layer strategies.
• Lead code reviews, mentor engineers, and define engineering standards.

Skills

Next.js 16+

React Fundamentals

TypeScript

Performance Optimization

Security Best Practices

Server Components (RSC)

App Router

SEO Techniques

Caching Strategies

Edge Runtime

Code Reviews

Tools

Proxy model (proxy.ts)

Bundlers

Cache Components (use cache)

Job description

Job Description:

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)

Requirements: