Frontend Developer III

Frontend Developer

Location:

Jersey City, NJ (Hybrid)

Duration:
Contract

Experience Level: Senior (8-10+ years preferred)

We are seeking a Senior Frontend Developer to join a team building and enhancing a modern headless digital platform. This role is ideal for an experienced engineer who is passionate about creating scalable, high-performance web applications using modern JavaScript frameworks and frontend best practices. The ideal candidate will bring deep expertise in Next.js, React, and Type Script, along with experience working in headless architecture environments.

This individual will contribute as a hands‑on developer while also providing mentorship and technical guidance to junior team members.

• Design, develop, and maintain responsive web applications using React, Next.js, and Type Script
• Build reusable components, custom hooks, and scalable frontend architectures
• Integrate frontend applications with RESTful APIs and backend services
• Collaborate with UI/UX teams to translate designs into high-quality user experiences
• Ensure cross-browser compatibility and responsive design standards
• Configure and maintain modern frontend applications built with Next.js
• Implement Server-Side Rendering (SSR), Static Site Generation (SSG), and Incremental Static Regeneration (ISR)
• Establish and support CI/CD pipelines and development workflows
• Promote frontend engineering best practices and coding standards
• Optimize application performance through code splitting, lazy loading, caching strategies, and other modern techniques
• Improve SEO through effective rendering strategies and frontend optimization
• Implement security best practices and content security standards
• Monitor and improve frontend reliability, accessibility, and user experience
• Write and maintain unit tests using Jest and related testing frameworks
• Support end-to-end testing initiatives
• Participate in code reviews and technical design discussions
• Ensure high-quality, maintainable, and well-documented code
• Work closely with backend engineers, architects, product owners, and designers
• Mentor junior developers through code reviews and technical guidance
• Contribute to Agile ceremonies and collaborative planning activities
• Take ownership of features and drive projects through completion

• 8+ years of professional frontend development experience
• Strong experience with Next.js and React
• Advanced proficiency with Type Script
• Experience building applications in headless architecture environments
• Strong understanding of SSR, SSG, and ISR concepts
• Experience integrating frontend applications with APIs and backend services
• Experience with modern CI/CD pipelines and development practices
• Hands‑on experience with Jest and automated testing
• Strong understanding of frontend performance optimization techniques
• Experience working in Agile/Scrum environments
• Excellent communication and collaboration skills

• Experience with headless CMS platforms
• Experience working with Sitecore JSS or similar technologies
• Familiarity with GraphQL
• Experience with SCSS and modern styling frameworks
• Experience implementing Content Security Policies (CSP)
• Experience with SEO optimization strategies for modern web applications

• Ability to work independently and take ownership of deliverables
• Strong problem‑solving and troubleshooting skills
• Comfortable mentoring and supporting junior developers
• Ability to thrive in a fast‑paced Agile development environment
• Passion for modern web technologies and continuous learning

This position offers the opportunity to work on a modern digital platform using cutting‑edge frontend technologies while helping shape the future direction of the application's architecture and user experience.

EEO Employer Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law.

Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law. If you have visited our website in search of information on employment…