Top Web Developer Jobs in Belfast

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

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

Develop and maintain scripts, API integrations, and full-stack Node.js web applications to support CAD, PDM, and engineering platforms; automate processes with PowerShell; work with SQL databases; use Autodesk Forge for integrations; improve development processes and mentor team members.

Build and maintain large-scale WordPress platforms, develop reusable plugins and custom blocks, implement features, optimize performance and accessibility, debug and refactor code, collaborate with teams and clients, and take increasing technical ownership on projects.

Lead design, implementation, and end-to-end delivery of high-quality web features. Build and operate cloud-native services, write and review well-tested code, use observability and metrics, reduce technical debt, and align implementations with team architecture and scalability needs.

Lead full lifecycle delivery of cloud-based web features: design, build, test, release, and operate reliable, scalable systems. Own technical direction, convert ambiguous problems into plans, reduce technical debt, and use observability and metrics to ensure performance and health.

Lead design and development of a high-performance Web SDK for device fingerprinting and behavior analytics. Implement algorithms for fingerprints and interaction capture, optimize cross-browser performance, build CI/CD and automated cross-browser tests, ensure data privacy/security, mentor engineers, conduct code reviews, and collaborate with product and QA to deliver scalable, maintainable SDKs.

The Ruby Engineer will focus on web scraping and browser automation, fix code issues promptly, support customers, and enhance search engine integrations.

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

Build and maintain Web Platform tooling used by internal engineering teams: shared libraries, pipelines, testing patterns, and documentation. Own end-to-end platform work, improve CI/CD, monorepo health, observability, and reliability. Mentor engineers, provide operational support, and collaborate across teams to boost developer productivity and quality.

Ship real open-source integrations and MCP servers to bring SearchApi to agent and automation frameworks. Create PRs, example apps, docs, and integration guides. Stay current with the agent ecosystem, pick high-leverage targets, and work independently to deliver production-ready integrations.

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.