Back-end API Developer

**Back-End API Developer - Newcastle-Upon-Tyne (hybrid) - £40-45,000 per annum + benefits**

We are seeking an experienced Back-End API Developer. In this role, you will be responsible for designing, building, and maintaining secure, scalable, and high-performance APIs. You'll work closely with front-end developers, DevOps engineers, and product teams to deliver complex business logic to the front-end web application.

Key accountabilities

• 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

Skills and experience

• 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.

Damia Group Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept our Data Protection Policy which can be found on our website.

Please note that no terminology in this advert is intended to discriminate on the grounds of a person's gender, marital status, race, religion, colour, age, disability or sexual orientation. Every candidate will be assessed only in accordance with their merits, qualifications and ability to perform the duties of the job.

Damia Group is acting as an Employment Business in relation to this vacancy and in accordance to Conduct Regulations 2003.