Unknown Company

Senior Website Developer (Next.js & CMS)

nj • Posted 5 days ago
Onsite Full Time IT & Technology

We are seeking an experienced Senior Website Developer with strong expertise in Next.js and Sanity CMS to design, develop, and maintain enterprise-grade, high-performance websites. The ideal candidate will have extensive experience building scalable, SEO-optimized web applications using modern frontend technologies and headless CMS architecture.

This role requires close collaboration with product managers, UX/UI designers, backend developers, and business stakeholders to deliver exceptional digital experiences while ensuring performance, accessibility, and maintainability.

Key Responsibilities

  • Design, develop, and maintain enterprise-grade websites using Next.js and Sanity CMS .
  • Build reusable, scalable, and maintainable frontend components using React.js and TypeScript .
  • Customize and extend Sanity Studio , including schema design, content models, and editorial workflows.
  • Integrate RESTful APIs and GraphQL services with frontend applications.
  • Optimize website performance, accessibility, responsiveness, and SEO.
  • Implement server-side rendering (SSR), static site generation (SSG), incremental static regeneration (ISR), and App Router features.
  • Collaborate with UX/UI designers to deliver intuitive and responsive user experiences.
  • Participate in architecture discussions, code reviews, and technical planning.
  • Troubleshoot production issues and continuously improve application performance.
  • Mentor junior developers and promote engineering best practices.
  • Work closely with cross-functional teams in an Agile/Scrum environment.

Required Skills & Qualifications

  • Bachelor’s degree in Computer Science, Information Technology, or a related field.
  • 10+ years of software development experience.
  • Strong expertise in:
  • React.js
  • TypeScript
  • Hands-on experience with Sanity CMS , including:
  • Headless CMS architecture
  • Content modeling and workflowsStrong knowledge of:
  • HTML5
  • CSS3
  • Tailwind CSS
  • Responsive Web Design
  • Experience with state management libraries such as Redux, Zustand, or Context API.
  • Experience integrating REST APIs and GraphQL.
  • Strong understanding of website performance optimization, accessibility (WCAG), and SEO best practices.
  • Excellent debugging, problem-solving, and communication skills.

Preferred Qualifications

  • Experience deploying applications on Vercel , AWS , Azure , or similar cloud platforms.
  • Experience with CI/CD pipelines using GitHub Actions .
  • Knowledge of NextAuth/Auth.js authentication.
  • Experience with testing frameworks such as Jest, React Testing Library, or Cypress.
  • Experience working in Agile/Scrum teams.

What We’re Looking For

  • Strong ownership mindset with the ability to independently drive development initiatives.
  • Excellent collaboration and stakeholder management skills.
  • Passion for building high-quality, scalable web applications.
  • Ability to mentor team members and contribute to engineering excellence.

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