A rapidly expanding global payment platform is seeking a Senior / Principal Software Engineer .NET to design and develop scalable solutions. The role involves building mission-critical platform services and APIs while ensuring performance optimisation. Candidates should have 6+ years of experience for Senior roles or 10+ years for Principal roles, along with architectural leadership. The position offers fully remote work across the UK & Ireland, 45 days of annual leave, comprehensive healthcare for you and your family, and an annual learning budget. #J-18808-Ljbffr