16 of 16 Contract API Development Jobs in the UK excluding London

major integration project within a high-integrity engineering environment. Our client, a respected UK leader in mission-critical software and systems, is seeking a capable contractor to assist with API development and systems integration involving Oracle and internal platforms. This role requires a proactive engineer who can take ownership of specific, well-defined technical tasks. Key Skills Required … on experience with Atlassian tools (Jira, Confluence) Strong PowerShell scripting skills Solid knowledge of SQL Server or similar relational databases Experience working with or integrating Oracle systems Familiarity with API development and integration Ability to work independently and efficiently on scoped tasks UK nationality is essential due to project requirements Experience in regulated sectors is beneficial (e.G. Defence 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 ❯

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 ❯

and a proven track record, who ideally has some knowledge and experience of the commodity or financial trading sectors. Key Responsibilities: Full stack developer with around 8-10 years development experience, working in a agile development team to deliver robust enterprise-wide solutions utilising industry standard practices Design, develop, enhance and maintain applications using agreed coding standards and … quality targets. Ensure quality via code reviews and thorough unit testing. Liaise with immediate scrum team, other scrum/project teams, line manager and development lead to ensure accurate and complete delivery. Contribute to the development and implementation of software development best practices within the organisation. Writing clean and efficient code using relevant programming languages to implement … the designed features and functionality. Key Competencies & Skills: Knowledge of oil, wet bulk or energy trading and risk management business Software Development Methodologies: Understanding of Agile development practices and project management tools Communication Skills: Effective communication to collaborate with stakeholders, gather requirements, and explain technical concepts Problem-solving Skills: Ability to troubleshoot technical issues and identify creative solutions More ❯

Developer 6 months contract Day Rate: £365/day (Inside IR35) Location: Farnborough, UK (Hybrid 2 days on-site/week) About the Role: Youll be contributing to the development and enhancement of business-critical financial applications, building RESTful APIs and front-end components within a microservices-based architecture. The role offers the chance to work closely with analysts … operation of applications. Follow industry best practices and internal compliance standards. Required Skills & Experience: 8+ years of hands-on experience with .NET, C#, and Angular Strong experience with RESTful API development in microservice environments Solid understanding of .NET Core and event-driven architecture Experience working in Agile environments with cross-functional teams Familiarity with tools like JIRA, Confluence More ❯

student experience. How youll spend your day Build and Maintain Integrations : Design, implement, and maintain integrations that enable customers to connect their internal systems with the CAS Shield platform. API Development : Develop and optimize APIs and tools to ensure seamless interaction between our platform and customer systems. Collaboration : Work closely with product managers, engineers, and customer support teams … with the willingness to learn). Hands-on experience with SQL-based and NoSQL (Document-based) databases. Deep understanding of AWS services and cloud environments. Familiarity with AWS Cloud Development Kit (CDK)and services like Lambda, SQS, S3, Cognito, EventBridge, and more. Experience with DevOps practices, including CI/CD pipelines, Docker, and GitHub Actions. Strong knowledge of security … best practices for APIs and data privacy. Proficiency in unit, integration, and API testing using Jest. Ability to optimize software for performance and cost-efficiency in cloud environments. Excellent problem-solving abilities and troubleshooting skills. Strong communication and collaboration skills, with the ability to convey complex concepts to diverse audiences. Detail-oriented with a commitment to delivering high-quality More ❯

technical issues. Experience with system integrations (APIs, web services, batch processes). Knowledge of SaaS/cloud technologies and basic network configuration. Understanding of enterprise security principles and secure development practices. Experience in API development and management (RESTful, SOAP). Proven track record in supporting enterprise platforms and enhancing system capabilities. Excellent communication skills, both technical and … non-technical. Familiarity with ITIL Service Delivery framework. Technical Proficiency Cloud platforms and SaaS/PaaS solutions Application and PAS configuration API management and integration Mimecast, performance testing, patch and group policy management Understanding of security, data and reporting (desirable), Microsoft & Google products, SaaS licensing and commercials Culture and Conduct Be a role model for the organisation's purpose More ❯

teams to support CI/CD pipelines Manage cookies and session handling effectively Write and maintain unit tests using JUnit Work with POJOs and mock data for testing and development Integrate front-end components using Thymeleaf and JSON What you'll need to succeed Essential Skills: Java (Core and Advanced) Spring Boot & Spring Framework jQuery Thymeleaf RESTful API development and testing (Postman, Swagger) CI/CD pipelines and DevOps collaboration Cookies/session management Unit testing with JUnit Handling POJOs and mock data Desirable: Exposure to modern frontend frameworks (e.g., React, Angular, Vue) What you'll get in return Location: Liverpool (2-3 days on-site per week)?? Contract Length: 6 months? Rate: Competitive, Inside IR35 More ❯

in secure government environments. Youll bring: Python and/or JavaScript/TypeScript experience, strong AWS skills, Kubernetes, CI/CD, and experience with data platforms, high-volume processing, API development, and Terraform. Exposure to Helm, Argo, or Tekton is a plus. This is an opportunity to work in a fast-paced, mission-critical setting with hybrid flexibility More ❯

the Project Manager, architects, clients & other stakeholders to implement MuleSoft APIs. This role will require knowledge of MuleSoft's Anypoint Studio & Anypoint Platform, which includes Design Center, Runtime Manager, API Manager, Exchange, etc. You must be capable of understanding business requirements, working with stakeholders & implementing complex integrations. Responsibilities: Designing & developing integration solutions using MuleSoft Anypoint Platform. Building & maintaining integration … modules. Collaborating with other developers & stakeholders to understand business requirements & translate them into integration solutions. Required Skills: Good experience of: integration concepts & technologies. MuleSoft Anypoint Platform & components (Mule ESB, API Manager, CloudHub, etc.) Java programming & experience with other programming languages such as XML, JSON, SQL Agile software development methodologies. Cloud-based integration platforms such as Amazon Web Services … AWS) or Microsoft Azure. API design and development. Knowledge of RESTful web services, SOAP, & other integration protocols Familiarity with API design & development best practices Strong problem-solving skills & ability to troubleshoot integration issues. Good communication & teamwork skills Strong understanding of Agile development methodologies & experience working in an Agile environment Nice to Have Skills: Experience with cloud More ❯

involve modernising the existing architecture, enhancing performance, and delivering new features to meet the needs of a growing, global user base. Tech stack: PHP Laravel VueJS MySQL (or similar) API Development TDD, CI/CD Start: ASAP Location: Fully Remote (UK) Length: Initial 6 months IR35: Outside IR35 Provn Talent Solutions Ltd is operating as an employment agency More ❯

intelligence, document processing, and risk management. Key Responsibilities: Architect & Implement: Design and deploy secure AI services from lab to production, ensuring they are scalable and compliant with industry standards. API Development: Create robust APIs for large language models (LLMs), retrieval-augmented generation (RAG) pipelines, agentic workflows, and document intelligence systems. Cybersecurity & Privacy: Integrate cybersecurity and data privacy controls More ❯

Axway API Developer (SC Cleared) 6 months contract Inside IR35 £500 to £650 a day Remote Working (UK based) *Active SC Clearance is needed* A top-tier defense organization is looking for an experienced Axway API Developer/Administrator to join their team on a 6-month contract. You will contribute to a large government gateway project, and … liaising with stakeholders to define requirements and design comprehensive solutions. To be successful in this role, you should have a solid foundation in: Axway's core products: Policy Studio, API Gateway, and API Manager. Key communication protocols: SFTP, HTTPS, SSL/TLS, and oAuth. Data and messaging formats: JSON, XML, SOAP, and REST. Linux scripting and environments. Using … and deployments. 6 months contract Inside IR35 - Remote Working - £500 to £650 a day *Active SC Clearance is needed* If you are an experienced professional with a background in API, MFT, or secure file transfers, this could be the perfect opportunity for you. If the above sounds of interest to you then please apply directly to the AD or More ❯