MCS Group has an exciting opportunity to join a fast-growing tech start-up which is entering its scale-up phase. With strong investment and a product gaining real traction in industry, they are expanding the team and looking for a Senior Full Stack Engineer to join their mission-driven tech team. You'll work on complex technical problems, build scalable systems, and help shape the technical direction of an exciting product used by global teams. What You'll Do: Build and maintain high-quality features across backend and frontend systems. Collaborate closely with engineers, product managers, and designers in an agile environment. Own problems end-to-end and contribute to architectural discussions. Embrace innovation - including AI - to find creative solutions to real-world challenges. What They're Looking For: Experience building and shipping full-stack applications. A start up mindset and passion for scaling a SaaS company Someone who is proactive, self-directed, and thrives in ambiguity. Comfortable with CI/CD workflows A flexible mindset and willingness to move between tools and frameworks. Why Join: Remote-first with 1-2 office days High autonomy and responsibility from day one. Fast-scaling company with global reach Competitive salary up to £75K private healthcare To speak in absolute confidence about this opportunity, please send an up to date CV via the link provided or contact Matthew Rainey, Specialist Tech Recruiter, at MCS Group Even if this position is not right for you, we may have others that are. Please visit MCS Group to view a wide selection of our current and exclusive roles All conversations will be treated in the strictest of confidence. Skills: senior software developer senior software engineer PHP developer Technical lead