https://jobs.co.uk/job/senior-c-developer-gcs--3f36b11d-c529-4bd5-9ac3-b3ced9827f93 RSS feed for Senior C# Developer at GCS. en-gb Wed, 16 Sep 2026 19:45:50 GMT https://jobs.co.uk/job/senior-c-developer-gcs--3f36b11d-c529-4bd5-9ac3-b3ced9827f93 https://jobs.co.uk/job/senior-c-developer-gcs--3f36b11d-c529-4bd5-9ac3-b3ced9827f93 Tue, 15 Sep 2026 23:00:00 GMT Location: London | Salary: £400 - £416/day Inside IR35 | Type: Contract | Contract Opportunity | Tier 1 Investment Bank | Canary Wharf Overview Our client, a Tier 1 Investment Bank based in Canary Wharf, is seeking an experienced C# Developer to join a strategic application modernisation programme. This role sits within a technology team responsible for evolving critical business applications, supporting a transition from legacy desktop solutions to modern web-based and cloud-enabled platforms. The successful candidate will work across the full software development lifecycle, contributing to the enhancement of existing applications while helping shape the future-state architecture. Key Information Role: Senior C# Developer Location: Canary Wharf, London (Hybrid Working) Contract Length: 6 Months Initial Contract Rate: -416 per day (Inside IR35) Start Date: ASAP The Programme This role forms part of a wider transformation initiative focused on: Modernising legacy desktop applications Migrating technology platforms from on-premise infrastructure to Azure Supporting the transition from desktop-based solutions to web technologies Improving application performance, maintainability and scalability Delivering new functionali... Contract