"API Software Engineer" Jobs in United Kingdom

Closing date for applications: 27/10/2026 Location London, United Kingdom Salary £64,728 – £91,380 Job typePermanent | Contract typeFull Time Mostly Remote You’ll spend most of your time at home, working with your t

API Software Engineer

NatWest Group · London

Join us as an API Software Engineer This is an opportunity for a driven Software Engineer to take on an exciting new career challenge Day-to-day, you'll be engineering and maintaining innovative, customer centric, high p

Join us as a API Software Engineer This is an opportunity for a driven Software Engineer to take on an exciting new career challenge Day-to-day, you'll be engineering and maintaining innovative, customer centric, high pe

Closing date for applications: 02/10/2026 Location London, United Kingdom Job typePermanent | Contract typeFull Time Remote / On-site Hybrid You’ll spend some of your time at home, working with your team digitally. Y

Closing date for applications: 02/10/2026 Location Edinburgh, United Kingdom Salary £46,113 – £65,100 Job typePermanent | Contract typeFull Time Remote / On-site Hybrid You’ll spend some of your time at home, workin

About the API Experience Team The API Experience team builds and maintains some of the most critical systems at Wise: the public API gateway, authentication/authorization systems (OAuth2), SDKs, and developer infrastruct

Software Engineer (Full Stack)

Callsign · London

As a Full Stack Software Engineer at Callsign, you will design, build, and maintain end-to-end features spanning our high-throughput Java backend services and modern web interfaces. You’ll work in an Agile, collaborative

Software Engineer III

Pearson · Rotherham

Job Title: .NET/React Developer (Software Engineer III, IC20) – Hellaby Key Responsibilities: Develop, test, and maintain .NET backend services and React UIs for assessment platforms. Integrate cloud-native solutions us

AI engineer with Agentic experience

Luxoft · London

Project description Luxoft is initiating the development of a solution designed to generate investment insights based on sales and research materials. The solution will leverage advanced Agentic AI capabilities to signif

.NET Full Stack Senior Software Engineer We are seeking talented professionals to join a high-profile digital transformation programme for a leading global fashion retailer. This team plays a pivotal role in delivering

Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of approximately 219,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to gr

The Stepstone Group is an international job technology business, with over 50 million site visits each month, we aim to deliver the best user experiences and personalisation for job seekers and our business subscribers.

SoundCloud empowers artists and fans to connect and share through music. Founded in 2007, SoundCloud is an artist-first platform empowering artists to build and grow their careers by providing them with the most progress

About Us At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world's largest networks that powers millions of websites and other Internet properties for customers rangin

Senior Software Engineer

Avaloq · Edinburgh

The Avaloq Security team is an international team of senior and expert software engineers. The team develops and maintains central application security frameworks, platforms, and tools across company-wide technology stac