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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Lead Front-End Engineer (ReactJS / NodeJS) in Parsippany - **Company:** Energy Jobline - **Location:** Parsippany-Troy Hills, NJ, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), A/B Testing, Adobe Experience Manager, Application Programming Interfaces (APIs), Artificial Intelligence, Data Analysis, HTML5, Automation of Tests, Cascading Style Sheets (CSS), Code Review, Continuous Integration, Middleware, Github, Google Analytics, Design of User Interfaces, Node.Js, Performance Tuning, Next.js, TypeScript, Web Content Accessibility Guidelines, Web Usability, ReactJS, Large Language Models, Cypress (Programming Language), Caching, Backend, Graphql, Front End Software Development, Multiaccess Edge Computing, React Redux, React Testing Library, Es2015, Jenkins - **Published:** September 4, 2026 - **Apply:** https://www.energyjobline.com/job/lead-front-end-engineer-reactjs-nodejs-parsippany-31439247 ## About the Role * 10+ years in front-end engineering, with 5+ years in ReactJS * Strong proficiency in JavaScript (ES6+), TypeScript, HTML5, CSS3 * Hands-on experience with Node.js (SSR, APIs, middleware, or BFF layer) * Experience building enterprise-scale SPAs and micro-frontends * Deep understanding of: + State management (Redux, Zustand, Context API) + Component-driven architecture + Performance optimization (lazy loading, code splitting) * Experience with AEM (Adobe Experience Manager) or similar CMS * Familiarity with analytics (Google Analytics), tagging, and experimentation platforms * Strong experience with REST/GraphQL APIs * CI/CD pipelines (GitHub Actions, Jenkins, etc.) * Testing frameworks (Jest, React Testing Library, Cypress) Nice to Have * Experience with Next.js / SSR / Edge rendering * Exposure to design systems / Storybook * Experience with CDNs, caching strategies, and edge computing * Knowledge of SEO and emerging GEO (AI/LLM optimization) concepts * Experience in travel, e-commerce, or high-traffic consumer platforms Leadership Expectations Provide technical vision and roadmap for front-end platforms * Influence architecture decisions across teams and domains * Balance speed, scalability, and maintainability * Drive engineering excellence and modern best practices * Act as a bridge between engineering, product, and business stakeholders ## Description * Lead the design and development of scalable, reusable front-end architectures using ReactJS * Own end-to-end UI engineering, including integration with Node.js services and APIs * Define and enforce front-end standards, design systems, and best practices * Drive performance optimization, Core Web Vitals, and accessibility (WCAG) * Architect solutions for multi-tenant / white-label platforms across global markets * Collaborate with product, UX, backend, and analytics teams to deliver seamless experiences * Integrate front-end with AEM (Headless / SPA Editor) or similar CMS platforms * Implement and optimize A/B testing and personalization frameworks * Mentor and lead a team of front-end engineers (onshore/offshore) * Ensure high-quality delivery through code reviews, CI/CD, and automated testing ## Related Videos - [To New Frontiers: The Future of Frontend Development](https://www.wearedevelopers.com/videos/404-to-new-frontiers-the-future-of-frontend-development) - [Innovating Developer Tools with AI: Insights from GitHub Next](https://www.wearedevelopers.com/videos/1268-innovating-developer-tools-with-ai-insights-from-github-next) - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [But, you're not Facebook](https://www.wearedevelopers.com/videos/378-but-you-re-not-facebook) - [Bringing AI Model Testing and Prompt Management to Your Codebase with GitHub Models](https://www.wearedevelopers.com/videos/1536-bringing-ai-model-testing-and-prompt-management-to-your-codebase-with-github-models) - [Can SVG be fast? 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