Principal React Developer

MCS Group is looking for a highly experienced Principal React Developer to lead the design and delivery of modern, scalable front-end applications. This is a hands-on role where you'll shape architecture, set best practice, and mentor engineers within a collaborative product-focused team. This is a key hire for this development team, and will be a position of technical influence within the company. This is an excellent opportunity work on complex front-end challenges, and make a real impact while enjoying the flexibility of a hybrid role based in Belfast. The Role: Help define and evolve front-end solutions for large-scale platforms, balancing design intent with technical practicality, performance and inclusivity. Turn product and design concepts into well-structured, production-ready interfaces that integrate cleanly with underlying services. Work alongside delivery, data and analysis teams to clarify requirements, constraints and technical trade-offs. Take an active role in end-to-en...