Jobs in London - Cloud Native API Engineer - AWS - London • Central London

Company: Square One Resources

Central London

Job Title: Cloud Native API Developer (AWS / Python) - London Location: London - 2 days on site per week Salary/Rate: Up to £455 Per Day Inside IR35 Start Date: 10/11/2025 Job Type: 10 Month Inside IR35 Company Introduction: We have an exciting opportunity now available with one of our sector-leading clients! They are currently looking for a skilled Cloud Native API Developer to join their team for a strategic project focused on AWS-based integration and enrichment platforms. Job Responsibilities/Objectives: Develop Cloud Native APIs on AWS using Python and Test-Driven Development (TDD). Design and deliver low-level diagrams to support architectural and development documentation. Design API contracts and maintain versioning, ensuring backward compatibility whenever possible. Collaborate with cross-functional teams to ensure seamless integration of services and adherence to secure coding standards. Create and maintain technical documentation to support ongoing maintenance and scalability. Required Skills/Experience: Hands-on experience with AWS API Gateway, AWS Lambda, and AWS Glue using Python. Strong background in contract testing and test-driven development (TDD). Advanced data modelling and analysis experience, including design and utilisation of API contracts in XSD, OpenAPI, and related formats. Proven experience with SQL and NoSQL database design and analysis. Strong programming skills in object-oriented or functional Python, with familiarity in Linux/Unix shell scripting and GitHub. Desirable Skills/Experience: Experience with Java If you are interested in this opportunity, please apply now with your updated CV in Microsoft Word/PDF format. Disclaimer Notwithstanding any guidelines given to level of experience sought, we will consider candidates from outside this range if they can demonstrate the necessary competencies. Square One is acting as both an employment agency and an employment business, and is an equal opportunities recruitment business. Square One embraces diversity and will treat everyone equally. Please see our website for our full diversity statement.