Senior Software Developer - API & Integrations

Arthurfinancial — United Kingdom · Posted ~17 hours ago

Senior Full-time Remote £75000 + bonus + benefits

Skills

C# .NET ASP.NET Core RESTful APIs Backend development Systems integration API development Scalable backend services Azure REST APIs

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Summary ✨ AI‑Generated

A senior backend engineering role focused on designing and developing secure, scalable APIs and integration services. You will connect internal applications, digital platforms, and external systems using C#, .NET, and ASP.NET Core in a modern engineering environment, with remote work and occasional travel.

Highlights

Senior backend-focused engineering role with a strong salary package, bonus, and benefits. The position offers remote work with occasional travel, hands-on ownership of scalable APIs and integrations, and the opportunity to work with a modern Microsoft technology environment.

Description

Software Developer, API & Integrations Salary: £75,000 + Bonus + Benefits Location: Remote + Occasional travel to London Sector: Insurance Employment Type: Permanent I’m working with a growing business with a well-known insurance broker that is looking to appoint a Senior Software Developer with a strong focus on backend development, APIs and systems integration. This is a hands on engineering role within a modern Microsoft environment, focused on designing and developing scalable APIs and backend services that connect internal applications, digital platforms and third party systems. The role would suit an experienced Software Developer, Backend Engineer, .NET Developer, Integration Developer or API Engineer who has spent a significant part of their recent career working across API and integration development. Key Responsibilities • Design, develop and maintain RESTful APIs and backend services using C#, .NET and ASP.NET Core • Build secure and scalable integration services across internal and third party platforms • Own API design including endpoints, data contracts, versioning, validation and error handling • Develop and deploy cloud based services within Microsoft Azure • Work with Azure App Services, Azure Functions and Azure SQL • Develop authentication and authorisation solutions using OAuth and Microsoft Entra ID • Produce and maintain API documentation using OpenAPI and Swagger • Support integration between digital applications and wider enterprise systems • Contribute to API architecture, technical design and engineering standards • Work across the full software development lifecycle from design through to production support • Contribute to CI/CD pipelines, automated deployments and modern DevOps practices • Work closely with technical and business stakeholders in an Agile environment Technical Experience Technical Skills • C# / .NET / ASP.NET Core • RESTful API design and development • Microsoft Azure, including App Services, Functions and Azure SQL • API integrations with third party systems • OpenAPI / Swagger • OAuth / Microsoft Entra ID • Entity Framework • Azure DevOps, CI/CD and Git • Event driven architecture and Azure Service Bus • Microservices and serverless development Desirable: Blazor or wider full stack development experience. Previous experience within insurance, financial services or another regulated sector would be beneficial, although the priority is finding a strong backend engineer with genuine depth across C#/.NET, Azure, APIs and integrations. If you’re interested in hearing more, please get in touch for a confidential conversation.