Website Developer (Next.js & Sanity CMS)

Senior Website Developer (Next.js & Sanity CMS)

Location: Hackensack, NJ
Work Mode: Onsite – 5 Days a Week
Employment Type: 24+ Months
Experience: 10+ Years

Job Overview

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:
• Next.js (SSR, SSG, ISR, App Router, Server Components)
• React.js
• JavaScript (ES6+)
• TypeScript
• Hands-on experience with Sanity CMS, including:
• Custom schemas
• Studio customization
• GROQ queries
• Headless CMS architecture
• Content modeling and workflows
• Strong 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.