Cloud Native API Engineer - AWS - London

Square One Resources; City Of London; Hybrid; GBP 80,000 - 100,000; Part time

Job summary

A leading technology recruitment firm is seeking a Cloud Native API Developer in London to work on AWS-based integration projects. Responsibilities include developing APIs using Python, participating in architectural designs, and ensuring integration across services. Candidates should have strong experience with AWS services and test-driven development. The role is based on-site 2 days a week, with a competitive pay rate.

Qualifications

• 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.

Responsibilities

• Develop Cloud Native APIs on AWS using Python and Test-Driven Development.
• Design low-level diagrams to support architectural and development documentation.
• Collaborate with cross-functional teams for seamless integration of services.

Skills

AWS API Gateway

AWS Lambda

AWS Glue using Python

Test-Driven Development (TDD)

SQL

NoSQL

Python

Linux/Unix shell scripting

GitHub

Job description

Overview

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.

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.