Hays are now looking for a Senior Full Stack Developer.Contract (6 months) to permanent 500 p/d then 80k - 93k after 6 months1 day a week a week in the office, rest is WFHVarious LocationsA leading fintech business has partnered with us exclusively to help expand its engineering team and are looking for Full Stack Developers to join on a 6-month contract (inside IR35) with a guaranteed path to permanent employment. These roles are perfect for developers who want to make a long-term impact in a fast-paced, high-growth tech environment.What You''ll Be BuildingYou''ll help drive innovation in international payments, forex, and e-commerce platforms. Collaborate with agile teams to build scalable systems that power global transactions.Tech Stack and Responsibilities.NET, C#, JavaScript, TypeScriptRESTful APIs, MS SQL Server, T-SQLAgile, CI/CD, unit testing (xUnit, Moq)Distributed systems, service buses, multithreadingLegacy support:VB.NET, VB6 (nice to have)Mentoring junior devs and contributing to architectureIf you are interested in the above role please apply now or send a copy of your CV to Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the TandC''s, Privacy Policy and Disclaimers which can be found at (url removed)