Back End Developer

5 days ago

Birmingham, United Kingdom InterCity Partners Ltd Full time

Backend Engineer – C# .NET | REST APIs | Azure | OAuth | AI IntegrationsBirmingham (Hybrid) – UK SaaS Scale-Up – Greenfield API & AI PlatformOne of the UK’s fastest-growing SaaS scale-ups is investing heavily in a brand-new API and AI integration platform, and they’re looking for a Backend Engineer to design and deliver the services that power next-generation AI features, customer products, and third-party integrations.You’ll work with a modern engineering team building RESTful APIs, cloud-native services, and event-driven components in a highly collaborative, product-focused environment.⭐ What you’ll be working on (API Development & Integration)Designing and implementing RESTful APIs that expose product capabilities to AI services and external partnersBuilding production-grade APIs using C# .NET, SQL, and Azure cloud servicesImplementing authentication/authorisation using OAuth and modern security patternsCreating clear, well-documented APIs following OpenAPI/Swagger standardsContributing to the build and maintenance of a developer portal for API consumers⭐ Skills, Knowledge & ExpertiseEssentialStrong experience in backend engineering with a focus on API developmentProficiency in C# .NET for building services and APIsSolid SQL knowledge — querying, optimisation, and relational schema understandingExperience building RESTful APIs for web/mobile applicationsUnderstanding of API design principles: REST conventions, status codes, error handlingFamiliarity with OAuth, JWT, or API key authenticationExposure to Azure and cloud deployment workflowsTesting mindset — unit tests, integration tests, debuggingStrong problem-solving and technical troubleshooting skills📩 Interested?Apply directly or message me for a confidential chat — even if your CV isn’t fully up to date. Happy to walk you through the role, team, and growth path.Keywords: Backend Engineer, API Engineer, .NET Developer, REST APIs, Azure, OAuth, CI/CD, AI Integrations, SaaS

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