Senior Frontend Engineer — Next.js/React

Litmus7 Systems Consulting Ltd.; San Ramon (CA); On-site; USD 140,000 - 150,000; Full time

Job summary

Litmus7 Systems Consulting Ltd. seeks a seasoned Senior Front-end Developer to lead design and delivery of high-performance web apps using Next.js and React. You will work with design, product, and content teams to create fast, accessible experiences, while mentoring juniors and upholding engineering standards.

The role emphasizes hands-on leadership, strong SEO/AEO focus, and collaboration across cross-functional teams to deliver cohesive product experiences in an in-office setting.

Qualifications

• 8+ years in front-end development, with 3+ years in React and Next.js in production.
• Strong knowledge of technical SEO and AEO concepts.
• Full-time in-office role; Bachelor's degree in CS/Engineering or related field.

Responsibilities

• Front-End Development: design and maintain scalable web apps with Next.js and React.
• Optimize performance: Core Web Vitals, bundle size, and rendering strategy.
• Headless architecture: integrate front-end with headless CMS and APIs.
• Design content models and API patterns for reusable components.
• Collaborate with backend teams on API contracts and data-fetching.
• Experience with Shopify is a plus.
• Implement SEO and AEO best practices in Next.js apps.

Skills

React

Next.js

Performance optimization

SEO knowledge

AEO understanding

Headless architecture

Education

Bachelor’s degree in CS/Engineering

Tools

Shopify experience

Job description

Litmus7 Systems Consulting Ltd. seeks a seasoned Senior Front-end Developer to lead design and delivery of high-performance web apps using Next.js and React. You will work with design, product, and content teams to create fast, accessible experiences, while mentoring juniors and upholding engineering standards.

The role emphasizes hands-on leadership, strong SEO/AEO focus, and collaboration across cross-functional teams to deliver cohesive product experiences in an in-office setting.