Senior Frontend Software Engineer | React, TypeScript Location: Belfast (Hybrid 3 Days) Type: Full-time About the Opportunity: This role sits within a dedicated Frontend Engineering team building complex, high-performance user interfaces for a cloud-native security platform. The team owns frontend architecture, API schema definition, and user experience standards. You will operate as a senior technical contributor, shaping frontend direction, influencing architectural decisions, and raising engineering standards across the UI platform. What Youll Be Doing: Leading the design and development of scalable frontend systems using React and TypeScript Shaping frontend architecture and contributing to long-term technical direction Defining and influencing API schema design in collaboration with backend teams Reviewing code and designs to maintain high engineering standards Improving performance, scalability, and stability across complex UI components Driving best practices in testing, maintainability, and CI/CD Partnering closely with product and design to ensure strong user experience and aesthetic integrity Mentoring engineers and raising capability across the frontend team What Youll Bring: Strong commercial experience in frontend engineering using React and TypeScript Proven experience delivering and operating complex, production-grade UI systems Experience contributing to architectural and technical decision-making Deep understanding of performance optimisation and frontend scalability Experience with API design and integration Experience working within CI/CD environments Strong communication skills with the ability to influence across teams Nice to Have: Experience with WebGL Experience working on data-intensive or security-focused platforms Why Join: Dedicated frontend ownership with real architectural influence Technically challenging product with complex UI requirements Opportunity to shape standards and mentor within a growing team Belfast-based engineering environment with flexibility If you're interested or have any further questions on the role, please feel free to reach out to Eve Geddis directly on LinkedIn. Skills: React Typescript CICD WebGL Benefits: Pension Fund Medical Aid / Health Care