Senior Full Stack Engineer

United Kingdom Uniting Ambition Senior Software Engineer Remote (with 1 day per month in East Midlands) Shape the future of a modern software platform. Lead technical direction. Grow with a business investing heavily in engineering. Are you a Lead Software Engineer looking for a role where your ideas genuinely influence the future of a product? This is an exciting opportunity to join a major platform transformation, taking a key role in designing, evolving, and scaling a modern software ecosystem. You’ll combine hands-on engineering with technical leadership — helping shape architecture, champion best practices, and mentor talented developers as the engineering function continues to grow. You won’t just be delivering features; you’ll have a voice in how technology decisions are made and play a key part in building a platform that supports the future success of the business. Why this opportunity? High-impact role – influence architecture and technical strategy across a business-critical platform. True technical leadership – mentor engineers, drive standards, and help create a culture of engineering excellence. Transformation journey – be part of a significant modernisation programme using contemporary technologies. Autonomy and influence – work closely with architects, product teams, and senior stakeholders to shape solutions. Career growth – an opportunity to expand your leadership responsibilities as the platform and engineering team evolve. The Role As Lead Software Engineer, you’ll: Design and develop scalable web applications and APIs. Make key architectural decisions and contribute to technical strategy. Lead engineering discussions and influence design approaches. Mentor developers and support the growth of the wider engineering team. Champion clean code, testing, automation, and best practices. Collaborate with product managers, architects, and business stakeholders. Play a central role in a large-scale platform transformation. What We’re Looking For You’ll be an experienced software engineer who enjoys solving complex problems and helping others succeed. You’ll bring: Strong commercial experience with C# and .NET. Proven experience building applications with React and TypeScript. Strong knowledge of PostgreSQL and database design. Experience designing and working with APIs and modern software architectures. A passion for building clean, scalable, maintainable solutions. Experience mentoring engineers and influencing technical decisions. The ability to communicate effectively with both technical and non-technical stakeholders. This is a role for a Lead Engineer who wants ownership, influence, and the opportunity to make a lasting impact — not just another development position