About the Role We're looking for a Principal Software Engineer to lead the migration and modernisation of a complex legacy application into a modern, scalable architecture. This is a hands-on technical role where you'll shape the design, guide the team, and ensure successful delivery of a critical transformation project. Key Responsibilities Drive the migration of legacy systems to modern, cloud-based solutions. Define and implement microservice architecture using a code-first approach . Apply strong architectural principles and design patterns to deliver robust solutions. Collaborate with a cross-functional team (including React developers) to ensure seamless integration of front-end and back-end. Get hands-on with C#, .NET, SQL , Web APIs , and React for complex feature development. Build credibility through technical expertise and lead the team in pushing designs forward. Work on features that require deep integration with multiple third-party applications. What We're Looking For Proven experience in application modernisation and migration projects. Strong background in microservice architecture and design patterns . Hands-on expertise in C#, .NET, SQL , and Web APIs . Cloud exper...