https://jobs.co.uk/job/principal-c-developer-net-aws-fintech-client-server--79ef919d-54a2-48ee-b61e-9d75f1cab294 RSS feed for Principal C# Developer .Net AWS - FinTech at Client Server. en-gb Mon, 10 Aug 2026 15:42:03 GMT https://jobs.co.uk/job/principal-c-developer-net-aws-fintech-client-server--79ef919d-54a2-48ee-b61e-9d75f1cab294 https://jobs.co.uk/job/principal-c-developer-net-aws-fintech-client-server--79ef919d-54a2-48ee-b61e-9d75f1cab294 Mon, 10 Aug 2026 11:50:31 GMT Location: City | Salary: 100000.00-100000.00 Annual | Type: Permanent | Principal C# Developer / Engineer (C# .Net AWS Python) London / WFH to £120k Would you like to join a growing and profitable scale-up that is viewed as a leading FinTech disruptor in a senior role that will allow you a great deal of influence and progression? As a Principal C# Developer you will architect and build highly performant and scalable solutions using the Microsoft tech stack and SOLID design principles, collaborating with cross functional Agile project teams in 2 week Sprints, you''ll be an advocate of best practice and ensure software is delivered to schedule. There''s a host of new features and development work and you''ll also help to drive the adoption of AI within the business, introducing things like chat bots and exploring the use of AI to make process improvements. This is an impactful role where you''ll report into and collaborate with the CTO, you''ll have a lot of visibility and quickly see the results of your work. Location / WFH: There''s a hybrid policy, with two days in the brand new London offices and flexibility to work from home two days a week (Thursdays and Fridays). About you: You are an experienced Software Developer / Engineer with a strong k... Permanent