Frontend Developer Jobs in Northern Ireland, United Kingdom

Betway, a leading digital gaming company, seeks a Frontend Engineer to build and optimize customer-facing web experiences. The role focuses on developing high-quality features with Next.js and React, ensuring accessibility, performance, and alignment with design specifications.

Newcode.ai is building AI-powered products that reshape how organizations use artificial intelligence. As a Frontend Engineer you will design and develop intuitive user interfaces using Next.js, React, TypeScript and Tailwind CSS, own the frontend architecture and collaborate with product, design and backend teams.

CrowdStrike, a global cybersecurity leader, seeks a Frontend Engineer II to build and maintain the user interface for the Falcon platform. The role involves developing single-page applications with Ember.js, collaborating with UX designers, QA, and backend engineers, and ensuring high-quality, accessible web experiences.

Front-end Engineer III at CrowdStrike will join the Falcon Foundry (SOAR) team in Dublin, Ireland, working in a hybrid model. The role focuses on building and maintaining single‑page web applications for a high‑scale SaaS platform that processes nearly 3 trillion events daily.

A dynamic Frontend Engineer role at Gongio, focused on building intuitive, scalable SaaS applications. The position emphasizes ownership, collaboration with product and UX teams, and participation in architecture discussions.

Frontend Development team builds modern, user‑facing web applications that power critical business functionality. The Frontend Developer (React) creates reusable, high‑quality UI components, transforms complex product requirements into responsive interfaces, and ensures performance and scalability through robust testing.

Product Development Team builds innovative digital solutions for large-scale user communities. As a Frontend Developer, you will design and implement high‑performance React applications, collaborate on architecture decisions, and integrate with backend services to deliver engaging user experiences.

Wind Turbine Monitoring Team builds a next‑generation SaaS platform that uses AI to analyze sensor data from thousands of turbines. As a Frontend Engineer you will design and implement intuitive, data‑dense interfaces in Elm for expert users investigating turbine behavior, turning complex operational data into clear workflows.

Kota seeks a Frontend Engineer for its Investments team to build intuitive UIs for pension and retirement products. The role involves creating employer and employee-facing dashboards, translating complex financial data into clear interfaces, contributing to frontend architecture, and collaborating with product, design, and backend teams to ship features quickly.

Senior Frontend Engineer at Firstup, building scalable, high‑performance React applications and a reusable component library that powers the world’s first intelligent communication platform. The role drives engineering excellence, AI‑assisted development, and cross‑functional collaboration with Product and Design to deliver accessible, engaging employee experiences.

Senior Frontend Engineer at Halosbodycams, building AI‑driven video forensic tooling for body‑worn cameras. Shape user experience for complex investigative workflows like video review, transcription, and AI insights.

Lead Frontend Developer with deep expertise in ReactJS to spearhead development of cutting-edge user interfaces. Responsible for guiding frontend team, defining architectural patterns, ensuring high-quality, performant, intuitive web applications.

Senior Frontend Engineer at Kaseya, building scalable web applications with Angular and React to deliver responsive, accessible user interfaces across the AI‑powered IT management platform. Works closely with Product, Design, and Backend teams to integrate APIs, maintain state management, and improve performance.

Front End team at Kitman Labs builds user‑friendly interfaces for the Intelligence Platform, showcasing massive sports data. The role designs, builds, and maintains high‑performance React components, collaborates with backend and design teams, and refines engineering processes.

Senior Frontend Engineer at Daon building TrustX SaaS platform. Design & develop responsive UI with React, Angular or Vue, create reusable components, micro‑frontend architecture, integrate REST/OAuth2 APIs, optimize performance, ensure WCAG compliance, use GitHub Copilot and AI tools, mentor juniors, collaborate with cross‑functional teams.

FIS, a global leader in financial technology, seeks a Principal Frontend Engineer to lead the design and architecture of its Revenue Connect cloud platform. The role focuses on building responsive, accessible, and high‑performance web experiences using a modern React/Next.js stack, design systems, and AI‑enhanced features such as LLM‑powered insights.

Product discovery team at Zinkworks building the Autonomous Networks portfolio. Owns UI delivery of high‑fidelity React/TypeScript prototypes, turning Figma designs into polished, responsive interfaces while setting frontend standards and component patterns.

Security & IT – IT team building next-generation financial applications powered by modern web technologies and blockchain infrastructure. Senior Frontend Engineer crafts intuitive, secure, high‑performance user experiences, leads frontend architecture, and mentors engineers while collaborating with product, design, and backend teams.

Design System team builds a shared UI foundation powering multiple products. Senior Frontend Engineer creates scalable, accessible React components, design tokens and tooling, and extends the system for AI‑assisted development.

International product engineering team building a modern platform for property owners and managers. Senior Frontend Engineer shapes a large-scale React-based application, delivering features from discovery through production while collaborating with designers, product managers, and backend engineers.