Salary: £35,000 - 40,000 per year Requirements: Proficiency in back-end languages like Node.js, Python, Java, Ruby, Go, or .NET Experience building and maintaining RESTful APIs Solid understanding of authentication and authorization (e.g., OAuth2) Expertise in developing system services in C, C++ and C# Experience with database design and query optimization Familiarity with containerization and cloud services (AWS, Azure, GCP) Understanding of CI/CD pipelines, version control (Git), and DevOps practices Familiarity with API gateways, webhooks, and event-driven architectures Experience writing or contributing to API documentation (Swagger/OpenAPI is a plus) Previous experience with Delphi is a plus Responsibilities: Design, implement, and maintain RESTful APIs Develop reusable and secure server-side logic, middleware, and services Integrate with third-party APIs and data sources Work with databases to design schemas and optimize queries Write unit, integration, and end-to-end tests for back-end components Monitor, troubleshoot, and improve application performance and scalability Ensure APIs are well-documented and follow consistent standards Collaborate with front-end and mobile developers to define API contracts Participate in agile development processes including sprint planning and code reviews Technologies: API AWS Azure C# CI/CD Cloud Delphi DevOps GCP Git Java Mobile OpenAPI Python Ruby Swagger ASP.NET NodeJS Web Backend More: We are Damia Group Limited, seeking an experienced Back-End Developer to join our team in Newcastle-Upon-Tyne. In this role, you will be responsible for designing, building, and maintaining secure, scalable, and high-performance APIs. We offer a competitive base salary of circa £40,000 per annum along with benefits. You will work closely with front-end developers, DevOps engineers, and product teams, contributing to a collaborative and innovative environment. last updated 9 week of 2026