Senior Front-End Engineer

Role OverviewWe are seeking a Senior Front-End Engineer with deep expertise in 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 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 Expertise16App 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 ()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 FundamentalsDeep understanding of:Event 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 (NestJS or similar)#J-18808-Ljbffr