Senior .NET Integration Engineer - permanent role
18 days ago
London
Senior .NET Integration Engineer City of London (3 days in office) Up to £85,000 We are seeking a Senior Integration Engineer to design and build scalable, enterprise-grade UI systems using Blazor integrated with .NET APIs. This role focuses on owning the UI and integration layer within a modern microservices architecture, ensuring performance, scalability, and excellent user experience. You will work across UI architecture, Back End integration, and system design-applying clean architecture principles to deliver robust, modular applications for a financial services environment. Key Responsibilities • Build modular, scalable Blazor-based UI systems for enterprise applications, • Define UI architecture patterns including state management, routing, and component design, • Work closely with Back End teams to integrate .NET APIs and microservices, • Translate business and design requirements into high-quality UI solutions, • Ensure performance, maintainability, accessibility, and responsive design standards, • Contribute to UI best practices, architecture decisions, and system design, • Develop integrations with third-party systems and internal platforms using APIs, • 5+ years' experience in .NET Front End development, • Strong hands-on experience with Blazor (Server and/or WASM), • Solid understanding of component-based UI architecture and SPA design, • Experience working with REST APIs and .NET Core (v7+), • Strong C# and asynchronous programming skills, • Experience with Azure (Logic Apps, Web Apps, Monitor), • Familiarity with CI/CD pipelines (Azure DevOps) and automated testing, • Strong UI/UX awareness (layout, typography, responsiveness, design consistency), • Exposure to React or similar Front End frameworks beneficial, • Financial Services industry experience