26 to 50 of 135 API Development Jobs in the UK excluding London

basis. This is a great opportunity to create exceptional customer experiences and work on cutting-edge technology! As a Senior Engineer, you will be responsible for leading the design, development, and maintenance of high-performance native applications. Whilst overseeing multiple teams, you will play a pivotal role in shaping the development strategy, and collaborating with cross-functional teams … delivery of high-quality solutions. Location: Mainly Remote – Occasional office visits in London. Salary: up to £95,000 + competitive benefits, depending on experience. Requirements: Experience in Native Mobile Development in Android (Kotlin and Java) Postman CI/CD Rest API Development Agile development methods such as Scrum or Kanban Must have leadership experience. These roles More ❯

basis. This is a great opportunity to create exceptional customer experiences and work on cutting-edge technology! As a Senior Engineer, you will be responsible for leading the design, development, and maintenance of high-performance native applications. Whilst overseeing multiple teams, you will play a pivotal role in shaping the development strategy, and collaborating with cross-functional teams … delivery of high-quality solutions. Location: Mainly Remote – Occasional office visits in London. Salary: up to £95,000 + competitive benefits, depending on experience. Requirements: Experience in Native Mobile Development in Android (Kotlin and Java) Postman CI/CD Rest API Development Agile development methods such as Scrum or Kanban Must have leadership experience. These roles More ❯

basis. This is a great opportunity to create exceptional customer experiences and work on cutting-edge technology! As a Senior Engineer, you will be responsible for leading the design, development, and maintenance of high-performance native applications. Whilst overseeing multiple teams, you will play a pivotal role in shaping the development strategy, and collaborating with cross-functional teams … delivery of high-quality solutions. Location: Mainly Remote – Occasional office visits in London. Salary: up to £95,000 + competitive benefits, depending on experience. Requirements: Experience in Native Mobile Development in Android (Kotlin and Java) Postman CI/CD Rest API Development Agile development methods such as Scrum or Kanban Must have leadership experience. These roles More ❯

basis. This is a great opportunity to create exceptional customer experiences and work on cutting-edge technology! As a Senior Engineer, you will be responsible for leading the design, development, and maintenance of high-performance native applications. Whilst overseeing multiple teams, you will play a pivotal role in shaping the development strategy, and collaborating with cross-functional teams … delivery of high-quality solutions. Location: Mainly Remote – Occasional office visits in London. Salary: up to £95,000 + competitive benefits, depending on experience. Requirements: Experience in Native Mobile Development in Android (Kotlin and Java) Postman CI/CD Rest API Development Agile development methods such as Scrum or Kanban Must have leadership experience. These roles More ❯

you a passionate Software Engineer looking to make a real impact? At Car Benefit Solutions, we're on the lookout for a talented developer to join our dynamic Web Development team. As a Software Engineer, you will play a key role in shaping the future of our technology solutions. In this role, you will design, develop, and maintain various … software applications, ensuring that our systems run smoothly and meet the needs of our clients and internal teams. You will be involved in the back-end development, working with our Agile teams to deliver high-quality software solutions. You will collaborate closely with our wider Software Services Team to translate user requirements into technical specifications and will proactively contribute … to the continuous improvement of our software development processes. If you are passionate about software development and are looking for an opportunity to make a real impact, we would love to hear from you! The salary banding for this role is £40,000- £45,000 per annum. The working hours are 35 hours per week, from Monday to More ❯

seasoned AI expert ready to take your skills to the next level? Do words like Azure OpenAI, Cognitive Services, prompt engineering, Retrieval-Augmented Generation (RAG) architectures, vector stores, and API integrations make you light up inside? If so, we want to hear from you! At 1st Central , we're on an exciting journey with AI and Generative AI - and … s about bringing smart ideas to life and making a real impact. You'll be at the heart of our AI strategy - from initial concept and prompt design, through development and testing, to deployment, production, monitoring and continuous improvement optimising cutting-edge AI solutions across the business. One day you might be collaborating with our Data Scientists, Software Engineers … or save time-and you know how to turn those ideas into working solutions. What's involved: Lead the design and implementation of AI engineering frameworks and standards, emphasising API integrations, Azure infrastructure, and Azure security & networking. Architect and develop AI and Generative AI solutions using services like Azure OpenAI and Azure Cognitive Services Implement prompt engineering techniques and More ❯

seasoned AI expert ready to take your skills to the next level? Do words like Azure OpenAI, Cognitive Services, prompt engineering, Retrieval-Augmented Generation (RAG) architectures, vector stores, and API integrations make you light up inside? If so, we want to hear from you! At 1st Central , we're on an exciting journey with AI and Generative AI - and … s about bringing smart ideas to life and making a real impact. You'll be at the heart of our AI strategy - from initial concept and prompt design, through development and testing, to deployment, production, monitoring and continuous improvement optimising cutting-edge AI solutions across the business. One day you might be collaborating with our Data Scientists, Software Engineers … or save time-and you know how to turn those ideas into working solutions. What's involved: Lead the design and implementation of AI engineering frameworks and standards, emphasising API integrations, Azure infrastructure, and Azure security & networking. Architect and develop AI and Generative AI solutions using services like Azure OpenAI and Azure Cognitive Services Implement prompt engineering techniques and More ❯

AWS/Azure DevOps tools - Ansible, Chef, Kubernetes, GitLab SRE logging & Monitoring Tools - ELK stack, Grafana, Prometheus, Open Telemetry Other highly valued skills include: Strong understanding of Agile application development methodology. Strong knowledge of API development/principles Collaborating with the development teams to build scalable and resilient systems. Aligning cross functional teams on priorities and … of systems and services through proactive monitoring, maintenance, and capacity planning. Resolution, analysis and response to system outages and disruptions, and implement measures to prevent similar incidents from recurring. Development of tools and scripts to automate operational processes, reducing manual workload, increasing efficiency, and improving system resilience. Monitoring and optimisation of system performance and resource usage, identify and address … bottlenecks, and implement best practices for performance tuning. Collaboration with development teams to integrate best practices for reliability, scalability, and performance into the software development lifecycle, and work closely with other teams to ensure smooth and efficient operations. Stay informed of industry technology trends and innovations, and actively contribute to the organization's technology communities to foster a More ❯

Axway API Developer + 6 month initial contract + Full remote + £650 to £690 per day + SC Cleared role Key Skills: + Axway API Development/Administration + SC Clearance Responsibilities Designing, developing and deploying of Axway policies and containers using Axway Policy Studio v7.7 Working with DevOps toolset for develop and maintain Automated Testing … and Code Deployment Provide Assistance to Axway support team to resolve technical issues Administrating the Axway Environment, using Axway Policy Studio, Axway API Manager, Cassandra and API Gateway for Deployment of Axway Patches, monitor capacity, providing service improvements Liaise with customers to define project requirements, document and design solutions Knowledge of: SFTP HTTPS SSL/TLS oAuth JSON More ❯

Axway API Developer + 6 month initial contract + Full remote + 650 to 690 per day + SC Cleared role Key Skills: + Axway API Development/Administration + SC Clearance Responsibilities Designing, developing and deploying of Axway policies and containers using Axway Policy Studio v7.7 Working with DevOps toolset for develop and maintain Automated Testing … and Code Deployment Provide Assistance to Axway support team to resolve technical issues Administrating the Axway Environment, using Axway Policy Studio, Axway API Manager, Cassandra and API Gateway for Deployment of Axway Patches, monitor capacity, providing service improvements Liaise with customers to define project requirements, document and design solutions Knowledge of: SFTP HTTPS SSL/TLS oAuth JSON More ❯

Axway API Developer + 6 month initial contract + Full remote + £650 to £690 per day + SC Cleared role Key Skills: + Axway API Development/Administration + SC Clearance Responsibilities Designing, developing and deploying of Axway policies and containers using Axway Policy Studio v7.7 Working with DevOps toolset for develop and maintain Automated Testing … and Code Deployment Provide Assistance to Axway support team to resolve technical issues Administrating the Axway Environment, using Axway Policy Studio, Axway API Manager, Cassandra and API Gateway for Deployment of Axway Patches, monitor capacity, providing service improvements Liaise with customers to define project requirements, document and design solutions Knowledge of: SFTP HTTPS SSL/TLS oAuth JSON More ❯

chance to build technology that truly makes an impact.Your role will involve: Expanding and maintaining a serverless payment processing platform built with TypeScript, Node.js, and AWS services like Lambda, API Gateway, and DynamoDB. Ensuring continued PCI DSS compliance across the full development lifecycle, including patching, error tracing, and applying secure coding practices. Designing secure, well-documented service interfaces … and abstractions over external APIs used by our clients. Participating in Agile ceremonies, collaborating closely with engineering, infrastructure, and external service providers. Practising Test-Driven Development (TDD) and Behaviour-Driven Development (BDD) to maintain a high standard of code quality, resilience, and performance. We are looking for candidates who have: Strong hands-on experience with TypeScript and Node.js … for backend development. Deep understanding of AWS serverless technologies. Working knowledge of Infrastructure-as-Code tools. Strong background in RESTful API development, secure authentication mechanisms, and API integration best practices. Experience working in regulated environments such as PCI DSS, or within other compliance-heavy systems. Familiarity with frontend frameworks like React is a bonus. If you're More ❯

streamlines compliance, enhances conversion, and improves the overall student experience. How youll spend your day As a Full Stack Lead Engineer, you will be responsible for leading the design, development, and maintenance of scalable, high-performance applications across both frontend and backend systems. You will collaborate closely with product managers, designers, and other engineers to deliver features that create … enjoys solving complex technical challenges. Youll also be expected to actively explore, evaluate, and adopt the latest Generative AI tools and practices to enhance productivity, streamline workflows, and accelerate development across the engineering team. Lead full stack development using ReactJS, TypeScript, Node.js , and related technologies. Architect and implement robust, scalable, and secure APIs and web applications. Collaborate with … and enforce coding standards, best practices, and documentation. Identify and resolve complex performance, scalability, and reliability challenges. Contribute to DevOps processes (CI/CD, monitoring, infrastructure) and help optimize development pipelines. Participate in architecture discussions and influence the future direction of the platform. Investigate and adopt new technologies (e.g. WASM, serverless patterns) to continually improve the platform. What youll More ❯

Lead the design, enhancement, and build of our integrations with different payment networks as a pivotal figure within our VPC & Domestic Processing team in Payment Processing Actively participate in development projects, constructing, REST services API, and container-based services. Develop and maintain highly functional, secure, scalable, and resilient systems Prioritize and manage multiple demands and projects in a … the team, continuously challenging and pushing for team-wide growth and success. Regularly report progress, issues and solutions to upper management to keep them informed. Provide technical leadership to development team by participating in design, performing design reviews and code reviews. Provide technical leadership for quality assurance and test engineering activities - manual and automation This is a hybrid position. … or with an Advanced Degree. You have payments related SME knowledge in one or more of the following industries - Banking, Fintech, Retail, Healthcare, Insurance Proficient in Web Services/API Development using SOAP or REST, JSON and XML. Experience in Kafka - Ability to install, maintain and troubleshoot Kafka. Have experience with messaging and stream processing on Kafka. Have More ❯

Development Team Leader Ipswich Full-time, Permanent £60,000 – £65,000 Hybrid (3 days in office) An exciting opportunity has arisen for a Development Team Leader to join a forward-thinking organisation in the professional services sector. This role is ideal for a hands-on technical leader with a strong background in software development, Agile delivery, and … practices, including Scrum, Azure DevOps, and CI/CD Implement and maintain high-quality software using .NET, C#, React/JavaScript, and automation frameworks. Design and manage microservices and API-driven architecture. Promote continuous improvement, innovation, and technical excellence. Key Requirements Proven experience leading or mentoring a software development team. Full lifecycle product development expertise Strong knowledge … of: .NET, C#, React/JavaScript Azure DevOps, pipelines, and automated testing frameworks Microservices architecture and custom/3rd party API development M365 technologies (Power Automate, Logic Apps, Canvas Apps) Interested? If you're a tech-savvy leader ready to drive innovation and mentor a talented team, we’d love to hear from you. Apply now to be More ❯

public holidays observed in the Republic of Ireland. Mandatory Requirements (Pass/Fail) ü Experience Level: The candidate must have more than 4+ years of relevant Java/JEE Development experience at a Intermediate level. ü Availability: The candidate must be available to commence work from 3rd November 2025. ü English Language Proficiency: The candidate must be fluent in … both spoken and written English. The following non-exhaustive list of Key Deliverables, are applicable to this Role: Expert in Java development, with experience using industry-standard frameworks, e.g. Quark us/Spring Boot. Microservice and API development (RESTful, experience of REST design and implementation). Knowledge of kubernetes API managers and WebLogic. Experience with OpenShift … Container platform, 3scale API and KeyCloak. Testing frameworks and TDD (like Cucumber or J unit). Databases: Relational (Oracle). Coding in adherence to the standards of the application in question. Maintaining, tuning and repairing applications to keep them performing according to technical and functional specifications; performing preventive maintenance activities; providing user support. Integration of technical and application components More ❯

the success driving innovation and excellence in our network infrastructure. Essential Technical Skills: Front-end: Angular, TypeScript Back-end: Java, Python, Spring Boot Database: MongoDB, PL/SQL,NOSQL API Development: RESTful APIs Version Control: Git CI/CD: TeamCity Desirable Skills: Docker and Containerization Monitoring and Logging (e.g., Prometheus, Grafana, ELK Stack) Cloud Platforms (AWS, Azure, Google … Cloud) Security and Compliance API Documentation (e.g., Swagger, OpenAPI) Code Quality Tools (e.g., SonarQube) Agile Methodologies (Scrum or Kanban) Soft Skills: Team Collaboration : Ability to work effectively with cross-functional teams, sharing knowledge and expertise. Proactive Approach : Anticipate challenges, identify opportunities, and take initiative to drive progress. Ownership and Accountability : Take ownership of tasks and projects, driving them to … the larger picture. Problem-Solving and Resilience : Drive issues to resolution, navigating complexities without getting bogged down. Training CACI Network Services develops individuals through a portfolio of training and development options such as certified training courses, workshops, technical conferences, boot camps, on-line training and much more. You will have the opportunity to work on some of the most More ❯

the success driving innovation and excellence in our network infrastructure. Essential Technical Skills: Front-end: Angular, TypeScript Back-end: Java, Python, Spring Boot Database: MongoDB, PL/SQL,NOSQL API Development: RESTful APIs Version Control: Git CI/CD: TeamCity Desirable Skills: Docker and Containerization Monitoring and Logging (e.g., Prometheus, Grafana, ELK Stack) Cloud Platforms (AWS, Azure, Google … Cloud) Security and Compliance API Documentation (e.g., Swagger, OpenAPI) Code Quality Tools (e.g., SonarQube) Agile Methodologies (Scrum or Kanban) Soft Skills: Team Collaboration : Ability to work effectively with cross-functional teams, sharing knowledge and expertise. Proactive Approach : Anticipate challenges, identify opportunities, and take initiative to drive progress. Ownership and Accountability : Take ownership of tasks and projects, driving them to … the larger picture. Problem-Solving and Resilience : Drive issues to resolution, navigating complexities without getting bogged down. Training CACI Network Services develops individuals through a portfolio of training and development options such as certified training courses, workshops, technical conferences, boot camps, on-line training and much more. You will have the opportunity to work on some of the most More ❯

the success driving innovation and excellence in our network infrastructure. Essential Technical Skills: Front-end: Angular, TypeScript Back-end: Java, Python, Spring Boot Database: MongoDB, PL/SQL,NOSQL API Development: RESTful APIs Version Control: Git CI/CD: TeamCity Desirable Skills: Docker and Containerization Monitoring and Logging (e.g., Prometheus, Grafana, ELK Stack) Cloud Platforms (AWS, Azure, Google … Cloud) Security and Compliance API Documentation (e.g., Swagger, OpenAPI) Code Quality Tools (e.g., SonarQube) Agile Methodologies (Scrum or Kanban) Soft Skills: Team Collaboration : Ability to work effectively with cross-functional teams, sharing knowledge and expertise. Proactive Approach : Anticipate challenges, identify opportunities, and take initiative to drive progress. Ownership and Accountability : Take ownership of tasks and projects, driving them to … the larger picture. Problem-Solving and Resilience : Drive issues to resolution, navigating complexities without getting bogged down. Training CACI Network Services develops individuals through a portfolio of training and development options such as certified training courses, workshops, technical conferences, boot camps, on-line training and much more. You will have the opportunity to work on some of the most More ❯

with cross-functional teams to translate requirements into technical solutions Optimise application performance and ensure scalability, maintainability, and security best practices are met Stay up to date with web development trends, frameworks, and emerging technologies relevant to data applications EXPECTATIONS IN THE ROLE The following skills and attributes are essential for success in this role: Full-Stack Web Development … from front-end to back-end, with a focus on integrating data sources Data Visualisation Proficiency: Skilled in using D3.JS (or similar libraries) for rich, interactive graphics and charts API Integration Experience: Proven track record of consuming and building APIs for data exchange UI/UX Awareness: Understanding of user-centred design principles and the ability to collaborate on … a consulting or enterprise environment Proficiency in HTML, CSS, JavaScript, and frameworks such as React, Angular, or Vue.js Experience with D3.JS or similar advanced visualisation libraries Strong understanding of API development and integration (REST, GraphQL) Familiarity with database technologies and query languages (SQL, NoSQL) Experience working with data sources such as Microsoft Fabric’s Data Lake, Power.B.I., Qlik More ❯

Your New Company and Role A forward-thinking public sector organisation is looking for an experienced Java Developer to join a collaborative, agile team working on the development and enhancement of key digital services. You'll be contributing to the greenfield development of a new digital service and enhancing existing platforms to improve user experience, accessibility, and operational … to work in a multi-functional team that values continuous improvement, collaboration, and technical excellence. What You'll Need to Succeed You'll bring strong commercial experience in Java development and a passion for building robust, user-centred digital services. Key skills and experience include:Essential Skills Java 17+ and Spring Boot microservices REST API development SQL … and data modelling (ideally PostgreSQL) AWS and OpenShift CI/CD and modern DevOps practices Cloud monitoring and observability tools Infrastructure as CodeDesirable Skills Front-end development with React, HTML/CSS, and accessibility awareness AWS services such as Lambda, S3, Aurora, API Gateway, CDK, CloudFormation Testing frameworks like Cypress Jenkins, Docker OAuth2, Spring Web Flow, Spring MVC More ❯

Your New Company and Role A forward-thinking public sector organisation is looking for an experienced Java Developer to join a collaborative, agile team working on the development and enhancement of key digital services. You'll be contributing to the greenfield development of a new digital service and enhancing existing platforms to improve user experience, accessibility, and operational … to work in a multi-functional team that values continuous improvement, collaboration, and technical excellence. What You'll Need to Succeed You'll bring strong commercial experience in Java development and a passion for building robust, user-centred digital services. Key skills and experience include: Essential Skills Java 17+ and Spring Boot microservices REST API development SQL … and data modelling (ideally PostgreSQL) AWS and OpenShift CI/CD and modern DevOps practices Cloud monitoring and observability tools Infrastructure as Code Desirable Skills Front-end development with React, HTML/CSS, and accessibility awareness AWS services such as Lambda, S3, Aurora, API Gateway, CDK, CloudFormation Testing frameworks like Cypress Jenkins, Docker OAuth2, Spring Web Flow, Spring More ❯

seeking a Senior Java Developer/Lead who could drive technology transformation in the team. This role involves taking ownership of key projects and components throughout the entire Software Development Life Cycle (SDLC). A primary focus will be on design, development & maintenance of components under Price Master Central systems which would require expertise in Java, Spring, SQL … API development, Kafka, Kubernetes, and Cloud technologies. You will guide & mentor team of engineers, providing technical expertise and direction, and ensure adherence to best practices. A strong understanding of system and enterprise architecture is essential. You will collaborate with global and diverse teams, including Business Analysts, Project Management, Production Support, and Infrastructure. Price Master Central is a global … management application - responsible for sourcing Securities & Pricing data from market vendors and internal Citi sources and providing it to downstream clients after applying client specific rules. Responsibilities : Deliver assigned development projects within agreed schedule, quality and scope expectations Participate in all stages of the SDLC within an agile Scrum environment Form partnership with technology vendors and gain deep understanding More ❯

enable Magnify's post-sales orchestration platform. This is a remarkable opportunity for someone with back-end skills and cloud expertise to make a significant difference in early product development at our company. Magnify needs problem solvers who like to automate and optimize, enjoy simplifying complexity and know how to experiment.Magnify will depend on the person in this position … Bachelors in Computer Science or related field. 7+ years of experience working as a software engineer building applications in a high growth, startup environment. Strong proficiency in web application development, including data modelling across relational and non-relational data stores, API development, asynchronous workflow orchestration, and development of web-based UIs (e.g. React). Advanced proficiency More ❯

public holidays observed in the Republic of Ireland. Mandatory Requirements (Pass/Fail) ü Experience Level: The candidate must have more than 1+ years of relevant Java/JEE Development experience at a junior level. ü Availability: The candidate must be available to commence work from 3rd November 2025. ü English Language Proficiency: The candidate must be fluent in … with experience using industry-standard frameworks, e.g. Quarkus/Spring Boot. Coding in adherence to the standards of the application in question. Completing assigned tasks related to phases of development lifecycle of enterprise applications within given scope and timeframes requirements. Maintaining, tuning and repairing applications to keep them performing according to technical and functional specifications. Performing preventive maintenance activities … Microservice and API development (RESTful, experience of REST design and implementation). Understanding API security protocols (OAuth 2.0/0penID Connect). Knowledge of Kubernetes, API managers and WebLogic. Experience with OpenShift Container platform, 3scale API and KeyCloak. Testing frameworks and TDD (like Cucumber or Junit). Databases: Relational (Oracle). Integration of technical and More ❯