12 api developer jobs found in London

Hybrid - London £550 per day (inclusive) Contract - Immediate Start We are seeking an SC Cleared Java Full-Stack Developer to join a high-performing delivery team working on complex, mission-critical government programmes. This is a hands-on role within an enterprise-scale Agile environment, contributing to the design, build and delivery of secure, high-quality full-stack solutions. What you'll be doing: Developing and delivering full-stack solutions with Java at the core Working across Front End and Back End components within Agile teams Contributing to solution design and engineering best practice Supporting CI/CD pipelines and ensuring non-functional requirements (NFRs) are met Building resilient, scalable services within secure environments Tech stack includes: Java | React | PostgreSQL | Kafka | ElasticSearch | AWS | Ansible | REST APIs | Docker | API Gateways | JavaScript | MongoDB | SQL What we're looking for: Strong...

Starling is the UK’s first and leading digital bank on a mission to fix banking! We built a new kind of bank because we knew technology had the power to help people save, spend and manage their money in a new and transformative way. We’re a fully licensed UK bank with the culture and spirit of a fast-moving, disruptive tech company. We’re a bank, but better: fairer, easier to use and designed to demystify money for everyone. We employ more than 3,000 people across our London, Southampton, Cardiff and Manchester offices. Our technologists are at the very heart of Starling and enjoy working in a fast-paced environment that is all about building things, creating new stuff, and disruptive technology that keeps us on the cutting edge of fintech. We operate a flat structure to empower you to make decisions regardless of what your primary responsibilities may be, innovation and collaboration will be at the core of everything you do. Help is never far away in our open culture, you will...

At Engine by Starling , we are on a mission to find and work with leading banks all around the world who have the ambition to build rapid growth businesses, on our technology.  Engine is Starling's software-as-a-service (SaaS) business, the technology that was built to power Starling Bank, and two years ago we split out as a separate business.  Starling has seen exceptional growth and success, and a large part of that is down to the fact that we have built our own modern technology from the ground up. This SaaS technology platform is now available to banks and financial institutions all around the world, enabling them to benefit from the innovative digital features, and efficient back-office processes that has helped achieve Starling's success. As a company, everyone is expected to roll up their sleeves to help deliver great outcomes for our clients. We are an engineering led company and we’re looking for someone who will be excited by the potential for Engine’s technology to...

Boomi Techno-Functional Consultant (SAP SuccessFactors) - 9 months - Hybrid/London 3dpw - £720/day Inside IR35 paid to the umbrella company Key Responsibilities Design, develop, and manage integrations between SAP SuccessFactors and enterprise systems using Dell Boomi Lead the integration workstream within the SuccessFactors implementation project Build and maintain APIs and data flows (REST, SOAP, OData) across systems Perform data mapping, transformation, and ensure data integrity (XML/JSON) Troubleshoot, debug, and optimise integration performance and reliability Key Requirements 10+ years' experience in Dell Boomi integration development Proven experience integrating SAP SuccessFactors with other enterprise systems Strong knowledge of Boomi AtmoSphere platform and Middleware integration patterns Experience with APIs (REST/SOAP), OData services, and data formats (XML/JSON) Functional understanding of HR processes, particularly Employee...

A leading IT Consultancy is seeking a Java AWS Spring Developer on a contract basis to work on a project with a leading Telecoms client. You must be able to work onsite in London 2-3 times per week. The Java AWS Spring Developer must have the following: Key Responsibilities: Development of the CMS application components using Java and Spring with focus on both new features and fixes or improvements of existing functionality Strive for continuous improvement - be able to improve existing practices and techniques from within the team with enthusiasm Write well-tested code for robustness including edge cases, usability and general reliability. Focus on non-functional testing as well. Lead in setting up the CI and CD, monitoring and alerting and in general improving reliability and robustness of the system Identify and resolve issues in the codebase. Use debugging tools and techniques to diagnose problems. Mentor less experienced members of the team Lead...

Principal responsibilities Develop key parts of the Global FX MI and Analytics platform Work closely with quants and electronic tech team in implementing fit-for-purpose solutions Contribute to designing and architecting tick, data access, feeds and scalable analytic solutions Implement API-based functionality Contribute to and expand common components, tools and APIs Focus on automation around metrics, builds and testing Skills Required: Test-Driven / Behaviour-Driven Development with emphasis on specification-based testing Strong analytical and problem solving skills with demonstrable knowledge of market data, trade data and basic statistical concepts Ability to query, analyse and combine vast amounts of data Team player with excellent communication skills In depth-Understanding of q language structures and writing performant code Familiar with kdb tick architecture Ability to adjust to a dynamic environment Appreciates differences in style or perspective...

At  Engine by Starling , we are on a mission to find and work with leading banks all around the world who have the ambition to build rapid growth businesses, on our technology.  Engine is Starling's software-as-a-service (SaaS) business, the technology that was built to power Starling, and two years ago we split out as a separate business.  Starling has seen exceptional growth and success, and a large part of that is down to the fact that we have built our own modern technology from the ground up. This SaaS technology platform is now available to banks and financial institutions all around the world, enabling them to benefit from the innovative digital features, and efficient back-office processes that has helped achieve Starling's success. We draw upon our experience as knowledgeable bankers, and best in class technologists to become the chosen option for these banks, and preferred partners for leading consultancies. Hybrid Working We have a Hybrid approach to working...

At  Engine by Starling , we are on a mission to find and work with leading banks all around the world who have the ambition to build rapid growth businesses, on our technology.  Engine is Starling's software-as-a-service (SaaS) business, the technology that was built to power Starling Bank, and two years ago we split out as a separate business.  Starling has seen exceptional growth and success, and a large part of that is down to the fact that we have built our own modern technology from the ground up. This SaaS technology platform is now available to banks and financial institutions all around the world, enabling them to benefit from the innovative digital features, and efficient back-office processes that has helped achieve Starling's success. We draw upon our experience as knowledgeable bankers, and best in class technologists to become the chosen option for these banks, and preferred partners for leading consultancies. Hybrid Working We have a Hybrid approach to...

At  Engine by Starling , we are on a mission to find and work with leading banks all around the world who have the ambition to build rapid growth businesses, on our technology.  Engine is Starling's software-as-a-service (SaaS) business, the technology that was built to power Starling Bank, and two years ago we split out as a separate business.  Starling has seen exceptional growth and success, and a large part of that is down to the fact that we have built our own modern technology from the ground up. This SaaS technology platform is now available to banks and financial institutions all around the world, enabling them to benefit from the innovative digital features, and efficient back-office processes that has helped achieve Starling's success. We draw upon our experience as knowledgeable bankers, and best in class technologists to become the chosen option for these banks, and preferred partners for leading consultancies. Hybrid Working We have a Hybrid approach to...

At Engine by Starling, we are on a mission to find and work with leading banks all around the world who have the ambition to build rapid growth businesses, on our technology.  Engine is Starling's software-as-a-service (SaaS) business, the technology that was built to power Starling Bank, and a year ago we split out as a separate business.  Starling Bank has seen exceptional growth and success, and a large part of that is down to the fact that we have built our own modern technology from the ground up. This SaaS technology platform is now available to banks and financial institutions all around the world, enabling them to benefit from the innovative digital features, and efficient back-office processes that has helped achieve Starling's success. As a company, everyone is expected to roll up their sleeves to help deliver great outcomes for our clients. We are an engineering led company and we’re looking for someone who will be excited by the potential for Engine’s...

At Engine by Starling , we are on a mission to find and work with leading banks all around the world who have the ambition to build rapid growth businesses, on our technology.  Engine is Starling's software-as-a-service (SaaS) business, the technology that was built to power Starling, and two years ago we split out as a separate business.  Starling has seen exceptional growth and success, and a large part of that is down to the fact that we have built our own modern technology from the ground up. This SaaS technology platform is now available to banks and financial institutions all around the world, enabling them to benefit from the innovative digital features, and efficient back-office processes that has helped achieve Starling's success. As a company, everyone is expected to roll up their sleeves to help deliver great outcomes for our clients. We are an engineering led company and we’re looking for people who will be excited by the potential for Engine’s technology to...

Starling is the UK’s first and leading digital bank on a mission to fix banking! We built a new kind of bank because we knew technology had the power to help people save, spend and manage their money in a new and transformative way. We’re a fully licensed UK bank with the culture and spirit of a fast-moving, disruptive tech company. We’re a bank, but better: fairer, easier to use and designed to demystify money for everyone. We employ more than 3,000 people across our London, Southampton, Cardiff and Manchester offices. Our technologists are at the very heart of Starling and enjoy working in a fast-paced environment that is all about building things, creating new stuff, and disruptive technology that keeps us on the cutting edge of fintech. We operate a flat structure to empower you to make decisions regardless of what your primary responsibilities may be, innovation and collaboration will be at the core of everything you do. Help is never far away in our open culture, you will...