Portfolio are proud to be exclusively representing an award-wining, Software provider based in the heart of Manchester, providing people solutions to over 100,000 clients worldwide. You will be joining a cross functional engineering team with a huge appetite to grow. They follow truly agile methodologies that have their people at the very center of our ethos. This role is unique, as the successful candidate will be a part of the founding members of the department who will help fostering and growing a positive culture - you will doubtless have ambitions to grow and expand with the business.Principal Backend Developer role requires extensive experience of delivering SaaS products in a fast-paced dynamic environment. They''re looking for a visionary technology leader who''s eager to work in a collaborative environment, driving innovation, setting technical direction and ensuring quality in our services and component libraries.Their core technical skills are expert of C# (.NET 6+ preferred), expert in SQL Server extensive experience in test Driven Development (NUnit preferred), advanced version control using Git, highly proficient in creating and maintaining RESTful and GraphQL APIs, ORMs (Entity Framework preferred), follows SOLID and OOP principles.What you bring to the teamAt least 10 years'' Backend Development experienceVisionary and strategic engineer with a love for technologyUnderstanding pipeline, Continuous Deployment and IntegrationExtensive experience in technical del