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

Role OverviewWe 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 ResponsibilitiesArchitect 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 ExpertiseNext.js 16+App Router architectureReact Server Components (RSC)Client/Server boundary management (use client)Server ActionsAdvanced SEO techniquesCache Components ("use cache")Data cache control (revalidateTag, updateTag)Streaming & SuspensePartial Prerendering (PPR)Route groups, parallel routes, loading/error boundariesProxy model (proxy.ts)Edge vs Node runtimesAdvanced state managementReact & TypeScriptAdvanced React patternsHooks, context, composition patternsReact Compiler awarenessStrong TypeScript typing patterns for large codebasesPerformance & ToolingBundlers and build optimizationBundle analysis & performance profilingHydration debugging & mismatch resolutionWeb Vitals optimizationLazy loading & code splitting strategiesBrowser & Web FundamentalsEvent loop & task queuesRendering lifecycle (layout, paint, compositing)Memory managementNetwork layers & HTTP cachingAccessibility (WCAG compliance)Modern CSS architecture & scalable styling systemsSecuritySecure RSC boundariesAPI layer protectionSecure headers & CSPAuthentication/authorization flowsAwareness of framework-level vulnerabilities and patch managementExperience RequirementsMinimum 5 years of professional front-end development experienceProven involvement in complex, high-traffic, or mission-critical applicationsDemonstrated ownership of architectural decisions and performance improvementsExperience building and maintaining design systems in production.PreferredFamiliarity with distributed caching strategies (CDN, edge caching)CI/CD and deployment optimization experienceBackend familiarity (Node.js, NestJS, or similar)#J-18808-Ljbffr