api developer jobs in London

We are working with an established organisation that is continuing to invest heavily in its technology capability and is looking to hire an API & Integration Developer.This is a hands on engineering role with responsibility for designing, developing and maintaining modern API and integration services across a cloud based Microsoft environment.The RoleYou...

Overview Modo Energy is building the data and AI infrastructure behind the energy transition — ingesting global energy datasets and powering APIs, analytics platforms, and LLM-driven systems that understand real-world power markets. Our data platform processes huge volumes of energy market data and makes it available across the company — powering...

Senior API / PHP Developer – Fully Remote (UK) – £80,000+ Venchr is partnering with a fast-growing SaaS company that’s redefining financial management in the luxury and yachting sector. Their platform unites accounting, payments, FX, and project management into a single, powerful ecosystem — helping clients worldwide streamline complex operations...

Location: London (Head Office)Hours: Monday to Friday, 9:00am-5:30pmWorking Pattern: Hybrid (50/50)Reports to: Head of EngineeringDepartment: IT - Solutions & DeliveryAbout the RoleWe're looking for an Low-code Integration Developer to join our Engineering team at Hampshire Trust Bank.You'll be responsible for developing, maintaining and supporting...

Sr.A high number of candidates may make applications for this position, so make sure to send your CV and application through as soon as possible.Director Analyst – AI Integration & API ManagementGartner for Technical Professionals PracticeAbout this Role:Gartner is seeking a Sr.Director Analyst to join our Technical Professionals practice, focusing on AI...

Sr.A high number of candidates may make applications for this position, so make sure to send your CV and application through as soon as possible.Director Analyst – AI Integration & API ManagementGartner for Technical Professionals PracticeAbout this Role:Gartner is seeking a Sr.Director Analyst to join our Technical Professionals practice, focusing on AI...

Penguin Random House in London is seeking an experienced Software Development Manager to lead our Technology team, combining people management with technical direction to deliver reliable, scalable software.You’ll spend about 70% on people leadership, capability building and delivery leadership, and around 30% on hands-on technical contribution, guiding...

Java Developer / Backend Software Engineer (Kafka API) London / WFH to £90kAre you a Java technologist seeking a role where you can work on ground breaking technology, continually learning and progressing your career?You could be joining a global technology consultancy.What's in it for you: Salary to £90kHybrid working (x2 days WFH per week)Pension, Life...

We are seeking an experienced Senior Murex Integration Developer to support a major e-Commodities trading platform implementation. The successful candidate will be responsible for designing, developing and implementing the integration between a new electronic commodities trading platform and Murex MX.3, using Murex's new Trade Booking API. The platform...

Java Developer / Backend Software Engineer (Spring Boot AWS API Kafka) London / WFH to £60kAre you a bright, ambitious Java Developer looking to progress your career?You could be working on a financial Tech for Good product in an impactful Head of Software Architecture role at a scaling tech business.The platform enables easier money transfer to people in...

Join the team behind Price Service—a mission-critical HTTP API powering pricing and promotions across all of Tesco’s channels. From tills to websites and everything in between, our work touches the lives of over 28 million UK shoppers every week, with global reach on the horizon. We’re building a robust, internet-facing API that runs both in stores and...

Turner & Townsend is seeking an Expert/Senior Microsoft SharePoint Developer to design, develop, deploy and maintain SharePoint on-premises solutions across SharePoint 2016, 2019 and Subscription Edition. You will create modern client-side applications using SPFx, build integrations via REST APIs and CSOM/JSOM, and document deployment guides.The role...

Synthesia is seeking a Developer Advocate to be the face and voice of the Synthesia API to the developer community. You will write, code, speak, and build demos to drive adoption, while feeding feedback to product teams.You will collaborate with Product, Engineering, Marketing, and Developer Support to translate technical capabilities into developer-friendly...

Full job description Full-Stack Software Developer Remote | Full-time A growing cyber security consultancy is looking for a Software Developer to build and maintain web applications that help organisations protect their systems and data. You’ll work across the front end and back end, developing practical tools used in real-world cyber defence. You’ll...

C# API Developer65,000 Plus BonusHome work and flex work encouragedQuant Capital is urgently looking for a C# .NET Developer to join our high profile client.Our client is the world leader in Market data management systems, with clients globally such as most of the major investment banks.A high number of candidates may make applications for this position, so...

Mapbox is the leading real-time location platform for a new generation of location-aware businesses. Mapbox is the only platform that equips organizations with the full set of tools to power the navigation of people, packages, and vehicles everywhere. More than 4 million registered developers have chosen Mapbox because of the platform’s flexibility,...

ARM International in London is seeking experienced Senior C# .NET Developers to join a strategic technology transformation programme within a leading international banking environment.Design, develop and enhance enterprise-grade applications across front-, middle- and back-office domains. Collaborate with architects, analysts, data engineers and QA to...

Arm in London is seeking an experienced Senior C# .NET Developer to join a strategic technology transformation programme on a contract basis. The role focuses on designing, developing and enhancing enterprise-grade applications across front-, middle-, and back-office domains within a regulated banking environment.You will work with Solution Architects, Tech...

Infosys in Bromley, UK is seeking a highly skilled Scala Developer to design, develop, and maintain high-performance APIs and backend services. The role emphasizes strong Scala, Java, and MySQL proficiency to deliver scalable software solutions.The candidate will collaborate with cross-functional teams, participate in code reviews, and support CI/CD and...

Sr. Director Analyst – AI Integration & API Management Gartner for Technical Professionals Practice About this Role: Gartner is seeking a Sr. Director Analyst to join our Technical Professionals practice, focusing on AI integration, API management, and orchestration. This role is designed for a hands-on expert who can bridge the gap between technical...