Ofertas › GCS
GCS · London, United Kingdom · £? - ? per year
Salary: £? - ? per year Requirements: Strong commercial experience developing applications using C#/.NET Proven expertise with WPF or WinForms Strong SQL or Oracle development skills Understanding of software design principles and development best practices Experience working within complex enterprise environments Experience working with Azure Experience with JavaScript Exposure to React Experience contributing to application modernisation programmes Knowledge of Azure cloud technologies Experience within Financial Services, Investment Banking or Capital Markets environments Strong analytical and problem-solving skills Excellent communication and stakeholder management abilities Ability to work independently in a fast-paced environment Collaborative mindset and willingness to mentor junior developers Comfortable balancing support of legacy systems alongside modernisation initiatives Responsibilities: Develop and maintain enterprise-grade applications using C# Enhance and support existing WPF and WinForms applications Contribute to the migration of desktop applications towards web-based architectures Build and integrate APIs and backend services Write efficient SQL queries and stored procedures Collaborate with business analysts, architects and end users to understand requirements Participate in code reviews and promote development best practices Troubleshoot production issues and contribute to continuous improvement initiatives Support the adoption of Azure technologies as part of the broader cloud transformation strategy Technologies: Azure Backend C# Cloud Support JavaScript Oracle React SQL WPF Web ASP.NET DevOps More: We are supporting a Tier 1 Investment Bank based in Canary Wharf with a strategic application modernisation programme. This contract opportunity is for a Senior C# Developer working in a hybrid setup on a 6-month initial contract, paying £416 per day inside IR35 with an ASAP start. You will join a technology team evolving critical business applications, helping transition legacy desktop solutions to modern web-based and cloud-enabled platforms while working closely with development teams, business stakeholders and architecture functions in a complex enterprise environment. last updated 43 week of 2026