Salary: £65,000 - 65,000 per year Requirements: Proven hands-on experience building complex applications with React and Typescript Strong understanding of frontend technologies including CSS, HTML5, and responsive design Experience working in Agile teams and collaborative environments Knowledge of cloud platforms is advantageous Degree or equivalent experience in Computer Science or related field Financial services experience is beneficial but not essential Responsibilities: Develop, enhance, and maintain high-quality, scalable frontend applications using React, Typescript, and modern web technologies Collaborate closely with UX designers, backend engineers, and product teams to deliver seamless user experiences Participate in architectural discussions and contribute to continuous integration and deployment (CI/CD) pipelines Mentor junior developers, conduct code reviews, and promote best practices in frontend engineering Experiment with new frameworks and tools to continuously improve development workflows and product quality Technologies: Backend CI/CD Cloud CSS Frontend HTML5 React TypeScript Web UX UI Design JavaScript More: We are MCS Group, partnering with a leading global technology firm to build a cutting-edge engineering hub in Belfast that focuses on delivering innovative software solutions used worldwide. As part of our growth, we are seeking experienced Senior React Engineers for a full-time, permanent role. You will have a meaningful impact, working on mission-critical software, while enjoying a hybrid working model, competitive salary with performance bonuses, private healthcare, and professional development resources. Our culture prioritizes collaboration, inclusivity, and innovation. last updated 15 week of 2026