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Software Engineer, Platform (C#) at Oak Engage. Location: Hybrid, Newcastle or Remote (UK Based). Reports to: Engineering Manager. Type: Full-time. Join Oak Engage – Where Communication Meets Connection. At Oak Engage, we’re on an exciting growth journey—backed by a major investment from NorthEdge to scale our impact and redefine the future of employee engagement. Trusted by some of the UK’s biggest brands, including Aldi, Five Guys, and ITV, we help organisations connect, engage, and empower their people through smarter, more personalised internal communication. With our next stage of expansion underway, we’re building a team of bold, ambitious thinkers ready to make their mark at a high-growth, purpose-driven SaaS company. If you’re looking to shape the future of work and grow alongside a company that’s going places, now’s the time to join Oak.. About the Role. We’re looking for a skilled Back-End Engineer with strong C#/.NET experience to join our growing development team and help develop the services that power Oak’s platform. You’ll be responsible for building and maintaining the underlying systems that drive our core functionality, working with a modern tech stack and helping shape the future of our product architecture.. This is an ideal role for someone who enjoys solving technical challenges, designing performant scalable, secure systems, and working in a fast-moving SaaS environment.. What You’ll Do. . Design, build, and maintain scalable and secure APIs and backend services using C# and .NET. . Collaborate with front-end engineers and product teams to deliver seamless features. . Optimise database queries and application performance. . Contribute to architectural planning and system design. . Implement unit tests and support automated deployment pipelines. . Maintain code quality and documentation across projects, participate in code reviews. . What We’re Looking For. . 3+ years of back-end development experience using C# and .NET Core/.NET 6+. . Strong knowledge of SQL and/or NoSQL databases. . Experience building REST APIs and microservices. . Solid understanding of software design principles, scalability, and performance. . Familiarity with CI/CD, Docker, "Familiarity with CI/CD pipelines, Docker and cloud infrastructure - Azure is an advantage". . . Company Location: United Kingdom.