Salary: £30,000 - 60,000 per year Requirements: 5 years experience in C# /.Net Development Comfortable working with SQL and relational databases Experience working with SaaS platforms and system integrations Solid understanding of APIs including REST and SOAP Experience working with JSON, XML, and CSV data formats Confident communicator who can bridge business and technical conversations Responsibilities: Gathering and clarifying requirements, data models, and workflows Designing and implementing scalable integrations using APIs and automation tooling Collaborating closely with internal Product, Engineering, and Delivery teams Maintaining and improving integrations as customer needs evolve Technologies: C# JSON REST SOAP SQL XML ASP.NET Azure Cloud Flow More: We are a high-growth technology business undergoing major platform transformation. As a Senior Software Engineer within our Professional Services function, you will play a key role in designing, delivering, and supporting system integrations for enterprise customers. We offer a competitive salary of up to £70k, flexible hybrid working options, 35 days of annual leave, private medical cover, and excellent career progression opportunities. last updated 11 week of 2026