Top Web Developer Jobs in Belfast

Lead the migration of OpenZeppelin's website from HubSpot to Sanity + Next.js, handling content modeling, integration, and SEO continuity, while training teams to operate the site autonomously.

Looking for developers with e-Commerce platform experience, strong JavaScript skills, and knowledge of HTML/CSS, working on high-profile projects.

The Senior Web Developer will implement user-facing features, optimize web applications, and build frameworks to enhance development efficiency at CoinMarketCap.

Responsible for architecting and taking ownership of complex web projects, mentoring other developers, and optimizing performance and security in a WordPress context.

Build and maintain internal Web Platform tooling and libraries used by M&S engineering teams. Own end-to-end platform features, improve CI/CD, monorepo health, testing, observability, and reliability. Mentor engineers, collaborate across teams, and operate platform services with a production-first mindset.

The Web UI Software Engineer will design and develop frontend web applications for embedded systems, ensuring integration with backend services and delivering exceptional user experiences.

Design and develop scalable web applications for embedded systems, leading architecture efforts and collaborating with cross-functional teams to ensure optimal performance and security.

Design and implement frontend applications using JS, CSS, React, and Flutter. Collaborate on technical specs and contribute to documentation, ensuring user experience and performance.