Back End Developer

Job Title: Back End Engineer (Sitecore / .NET) Duration: Contract, start of June - End of 2026 Workload: Full time hours Setup: Freelance (Daily rate / Limited Company / Umbrella / Sole Trader) Location: UK (Hybrid / Remote) We need an experienced Back End Engineer to design, build, and maintain secure, scalable services underpinning a Sitecore-based digital ecosystem. Key Responsibilities: Design and develop back end services using .NET / C# to support Sitecore-driven websites and platforms Build and maintain integrations between Sitecore and internal systems such as CRM, identity, and other enterprise platforms Develop and consume RESTful APIs to support headless or API-driven architectures Ensure high standards of performance, reliability, security, and maintainability across back end services Collaborate closely with front end engineers within an agile digital squad to deliver user-focused solutions Support configuration, deployment, and ongoing optimisation of back end components Contribute to code reviews, technical discussions, and continuous improvement practices Must-Have Skills: 6–7 years’ experience as a Back End Engineer Strong commercial experience with .NET / C# Hands-on experience with Sitecore CMS and Sitecore integrations Experience building and consuming RESTful APIs Solid understanding of security, performance, and scalability principles Experience working in agile delivery teams Nice-to-Have: Experience with headless Sitecore implementations Knowledge of CRM and identity service integrations Cloud experience (Azure preferred) DevOps or CI/CD exposure