Full Stack Engineer (C# / .NET and React) - Investment Banking London (Hybrid) 6-Month Contract Investment BankWe are working with a leading global investment bank to hire a hands-on Full Stack Engineer to help build a brand-new, high-impact web application from the ground up.This is a unique opportunity to take ownership of a greenfield project delivering a real-time web portal for institutional bond issuers and sales teams-providing live market insights and new issuance updates.The RoleYou will play a critical role in designing, developing, and deploying a full-stack web application, taking it from concept through to production.This role requires someone who can hit the ground running, build the entire development pipeline, and take ownership across the full software lifecycle-not just individual development tasks.Key ResponsibilitiesBack-End DevelopmentDesign and build RESTful APIs using ASP.NET Core (6+)Develop clean, scalable, and testable C# codeManage data access using EF Core, Dapper, or similarImplement secure authentication (e.g. Azure AD, JWT)Front-End DevelopmentBuild modern, responsive UIs using React (18+) and TypeScriptIntegrate components into existing web applications (Angular or similar)Apply best practices for performance, accessibility (WCAG 2.1 AA), and UXContribute to development of secure, client-facing portalsBuild, CI/CD and DeploymentDesign and implement CI/CD pipelines (Bitbucket, TeamCity or similar)Create build processes using MSBuild, npm/yarn, ..... full job details .....