About the role
Sr Front-End Architect React, TypeScript & Java/Spring **Location:** Jersey City, NJ **Work Arrangement:** 5 Days Onsite from Day 1 **Experience:** 15+ Years **Job Type:** Contract Job Overview We are seeking a highly experienced **Sr Front-End Architect** to lead the design and development of modern, high-performance web applications and digital experiences. This is a hands-on architecture role with a strong focus on **React and TypeScript (60%)** combined with **Java/Spring backend and microservices development (40%)**. The ideal candidate will bring deep front-end engineering expertise, strong architectural leadership, and the ability to design scalable UI and API solutions. You will partner closely with Product, UX, and engineering teams to establish technical standards, deliver exceptional user experiences, and build scalable microservices capabilities. Key Responsibilities - Lead the architecture, development, and delivery of complex user-facing applications using **React and TypeScript**. - Define front-end architecture, component strategies, state management, routing, coding standards, and testing practices. - Develop and integrate **Java/Spring microservices** and API contracts using **REST and GraphQL**. - Design front-end-friendly APIs supporting pagination, filtering, caching, validation, and standardized error handling. - Partner with UX and Product teams to translate designs and requirements into polished, accessible, and high-performance experiences. - Establish and evolve enterprise front-end engineering standards and best practices. - Build and leverage **design systems/component libraries**, theming, responsive layouts, and cross-browser solutions. - Drive application performance through **Core Web Vitals optimization, bundle optimization, code splitting, rendering strategies, caching, and profiling**. - Develop advanced UI capabilities including data visualization, real-time updates, workflow experiences, and offline-friendly patterns. - Ensure secure client-side architecture, including authentication flows, token handling, secure storage, and protection against common web vulnerabilities. - Establish and maintain automated testing strategies using unit, integration, and end-to-end testing frameworks. - Mentor engineers and provide technical leadership across front-end development initiatives. - Troubleshoot complex production issues and implement front-end observability, logging, metrics, and error reporting. - Use AI-assisted engineering tools such as **Claude Code and GitHub Copilot** for implementation, refactoring, testing, and debugging while validating output for correctness, security, and maintainability. Required Qualifications & Skills - **14+ years of professional software engineering experience**, with significant depth in front-end web development. - Proven experience leading complex software projects and mentoring engineering teams. - Expert-level knowledge of **React**, including Hooks, component composition, Context, rendering behavior, and modern concurrency patterns. - Strong **TypeScript** and modern JavaScript expertise, including generics, advanced typing, and strict type-safety strategies. - Strong hands-on experience with **Java and Spring/Spring Boot** for microservices development. - Strong expertise in **REST and GraphQL API design and integration**. - Deep knowledge of modern front-end tooling including **Vite, Webpack, Babel/SWC, npm/pnpm/yarn**, and build/release pipelines. - Experience with monorepo architectures is a plus. - Strong **HTML5 and CSS** expertise, including responsive design, CSS architecture, theming, and scalable styling approaches. - Experience with CSS Modules, CSS-in-JS, or utility-based frameworks. - Advanced testing experience with **Jest/Vitest, React Testing Library, Playwright, or Cypress**. - Strong understanding of **WCAG, ARIA, keyboard navigation, screen-reader compatibility**, and accessibility testing. - Expertise in front-end performance engineering, including profiling, bundle splitting, SSR/CSR trade-offs, caching, and Core Web Vitals. - Strong API integration experience covering schema-driven development, pagination, error handling, caching, and client-state management. - Strong understanding of web application security, including **XSS/CSRF prevention, dependency security, secure authentication/session patterns**, and OIDC concepts. - Experience implementing front-end observability, client-side logging, metrics, error tracking, and production debugging. - **Mandatory:** Demonstrated proficiency with AI-assisted engineering tools such as **Claude Code and/or GitHub Copilot**. Preferred Qualifications - Experience working with enterprise-scale design systems and component libraries. - Experience with financial services, banking, or other highly regulated environments. - Experience building high-volume, data-intensive applications. - Experience with real-time application architectures and advanced data visualization. - Strong understanding of CI/CD, cloud-native development, and modern DevOps practices. - Experience establishing engineering standards and architecture governance across large development organizations. What We're Looking For We are looking for a **hands-on technology leader** who can operate at both the architectural and implementation levels. The successful candidate will be comfortable making strategic technical decisions while actively contributing to React/TypeScript development and Java/Spring microservices. **Candidates must be able to work onsite in Jersey City, NJ five days per week from Day 1.**