17 of 17 Contract API Design Jobs in the UK excluding London

join a Business Banking Technology team within a leading Tier 1 financial institution. You'll play a key role in enhancing and scaling their digital banking platform. Key Responsibilities Design, build, and maintain robust, scalable applications using Java, Spring Boot, and Angular or React. Collaborate with cross-functional teams to deliver seamless end-to-end features, from user interfaces … Messaging: PostgreSQL, Oracle, MongoDB (optional) Kafka, Redis (for messaging and caching) Requirements Extensive experience in full-stack development with strong expertise in Java and Angular. Solid understanding of REST API design, microservices architecture, and cloud-native development. Hands-on experience with CI/CD pipelines, containerization, and infrastructure as code. Strong grasp of Agile methodologies and collaborative team More ❯

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/… Experience and expertise with the following technical stack Angular 13+ with DevExtreme UI library desirable Playwright, ReadyAPI and Specflow. Jira, Github, Confluenc Nice to have - C# and .NET6+ Rest API's and Microservice architecture SQL Server Database, NHibernate or Entity Framework Demonstrate expertise of: Building modern-web applications Modern UI design principles. i.e. Able to take initial design direction and interpret those guidelines to finalise the design through to a solution Restful API Design and development fundamentals Good SQL knowledge Test case preparation and execution EDUCATION & EXPERIENCE REQUIREMENTS 8-10 years' experience designing and developing applications both individually and as part of a team Familiarity with energy or financial trading environment Strong inter-personal More ❯

/2025 IR35: Inside Job Overview: We are seeking a highly experienced Application/Integration Architect with strong expertise in MuleSoft, Apache Camel, and RabbitMQ to lead the design, development, and deployment of enterprise-grade integration solutions. The ideal candidate will have a solid grasp of event-driven architecture, enterprise integration patterns, and secure, scalable message-driven solutions, coupled … with hands-on experience in DevOps and CI/CD. Key Responsibilities: Architecture & Design * Architect scalable, secure, and high-performance integration solutions using MuleSoft, Camel, and RabbitMQ. * Define reusable patterns and integration frameworks based on EIP (Enterprise Integration Patterns). * Lead API and messaging solution designs adhering to RESTful/SOAP standards and AMQP best practices. * Design and implement event-driven architectures, pub-sub models, and asynchronous message flows. Development & Implementation. * Build and maintain Mule flows, subflows, and message processors using Anypoint Studio and Platform. * Design complex DataWeave transformations and data enrichment pipelines. * Configure and manage RabbitMQ clusters, exchanges, queues, bindings, and vhosts. * Develop Apache Camel routes and leverage EIPs like WireTap, Enricher, Splitter/ More ❯

greenfield build. You'll be working closely with the CTO and product team to bring the new feature to life. The stack: Frontend: Vue3, TypeScript Backend: Node.js, PostgreSQL, Stripe API, GraphQL exposure, RESTful API design Infrastructure: Docker, AWS, CI/CD Pipelines What they need from you: 5+ years of full stack JavaScript experience with strong commercial … use of Vue and Node Ability to design, develop and document scalable APIs and microservices Comfortable integrating third-party services (Stripe experience essential) Experience managing PostgreSQL databases and designing relational data models Strong TypeScript fundamentals and ability to enforce typing and testing standards Familiar with containerised environments and deploying via AWS Confident in handling security, authentication and role-based More ❯

the financial services industry. You'll play a key role in building scalable microservices solutions, shaping the future of digital services using cutting-edge technologies. Role Overview: You will design, develop, and maintain microservices in a cloud-native environment, supporting a major modernisation project. This is an exciting opportunity to contribute to high-impact work within a fast-paced … practices - Work within agile frameworks such as Scrum or Kanban Essential Skills & Experience: - Strong Java development background with Spring Boot and Spring Cloud - Solid understanding of microservices architecture and API design - Experience with AWS, Azure, or Google Cloud - Familiarity with MySQL, PostgreSQL, or MongoDB - Proficiency in unit and integration testing - Excellent communication and problem-solving skills - Comfortable in More ❯

Glasgow) Sector: Public IR35 Status: Inside Interview Process: 1 Stage via Microsoft Teams Required Architect with hands-on expertise in Java, MuleSoft, Apache Camel, and RabbitMQ to lead the design and implementation of scalable integration systems. Requires strong experience with event-driven architecture and enterprise integration principles, as well as the ability to deliver secure, robust, and performant messaging … solutions within a DevOps-enabled environment. Key Responsibilities Design scalable integration solutions using MuleSoft, RabbitMQ, and Apache Camel. Define reusable integration patterns and frameworks using enterprise models. Lead API and messaging designs aligned with REST, SOAP, and AMQP standards. Implement asynchronous architectures including pub-sub and event-driven flows. Develop MuleSoft flows and processors with Anypoint Studio and … security integration (encryption, authentication, access control). Solid understanding of microservices, distributed systems, and cloud-native architecture. Desirable Skills MuleSoft: Proficient in Mule 4, Anypoint Studio, Runtime Manager, Exchange, API design, message processors, DataWeave, and integration flows; solid grasp of API policies, error handling, and transaction scopes. RabbitMQ: Skilled in AMQP, exchanges (direct, topic, fanout), queues, bindings More ❯

Developers to join the team! We are seeking a number of talented Java Microservies developers to join our team for a new strategic transformation program of work. You will Design, Develop, and Maintain Microservices: * Creating and implementing microservices with Java. * Ensuring microservices are scalable, reliable, and efficient. * Maintaining existing microservices, including bug fixes and performance improvements. Key Responsibilities: CI … Proficiency in Java and related technologies like Spring Boot. * Understanding of microservices concepts, patterns, and principles. * Experience with microservice frameworks like Spring Cloud or other relevant tools. * Understanding of API design principles and best practices. * Familiarity with relational and non-relational databases (e.g., MySQL, PostgreSQL, MongoDB). Cloud Platforms: * Experience with cloud platforms like AWS, Azure, or Google More ❯

Developers to join the team! We are seeking a number of talented Java Microservies developers to join our team for a new strategic transformation program of work. You will Design, Develop, and Maintain Microservices: * Creating and implementing microservices with Java. * Ensuring microservices are scalable, reliable, and efficient. * Maintaining existing microservices, including bug fixes and performance improvements. Key Responsibilities: CI … Proficiency in Java and related technologies like Spring Boot. * Understanding of microservices concepts, patterns, and principles. * Experience with microservice frameworks like Spring Cloud or other relevant tools. * Understanding of API design principles and best practices. * Familiarity with relational and non-relational databases (e.g., MySQL, PostgreSQL, MongoDB). Cloud Platforms: * Experience with cloud platforms like AWS, Azure, or Google More ❯

About the Job:In this contract role, you will design, develop, deploy, and document secure and functional APIs that integrate Employment Hero's HR and Payroll modules with third-party client platforms (such as timesheet and finance systems). You'll work day-to-day with our clients and partners, acting as the technical expert who architects API solutions based on client requirements and Employment Hero's documentation. You will manage the full API lifecycle, liaise with third-party vendors, contribute to solution design workshops, and ensure the integration meets performance, security, anddocumentation standards. Your work will make a direct impact by enabling clients to use automated HR and Payroll processes efficiently. Responsibilities and Duties … API Solution Design & Development Architect and implement secure, scalable RESTful APIs to integrate Employment Hero with external platforms Implement OAuth 2.0 and token-based authentication for API access. Manage the API lifecycle including testing, deployment, version control, logging, and monitoring. Use Python (e.g. FastAPI) and Azure services (e.g. Azure Functions, Microsoft Fabric pipelines) for development and More ❯

an Edinburgh-based company. Key skills: Strong Python expertise Experience with Object Oriented programming (OOP) languages Cloud platforms experience (AWS/GCP/Azure) Containerised applications eg Docker & Kubernetes API design and integration Start Date: ASAP Location: Edinburgh (remote with occasional office visits) IR35 Status: Outside IR35 Contract Length: 3 months More ❯

that is well tested, performant and maintainable. Responsibilities: Managing the exchange of data between different backend services (owned by separate development teams) and front-end application and third party API integration Development of all server-side logic, working with BA and Quality Assurance to ensure business logic is implemented as required and fully testable Introducing and owning technical user … and non-functional considerations Specific Skills Delivering integration micro-service patterns using Mulesoft best practices Applying SOLID principles and creating clean code Hands-on experience in designing RAML, REST API design, flow control, error handling. Strong working experience with the Mulesoft catalyst-based approach. Knowledge of Anypoint platform cloudhub architecture, VPC, VPN, DLB, firewalls & cloud concepts. Develop common … error handling framework & logging framework. Experience with entire API development lifecycle from design & build to governance & management Expertise in Batch message processing, Salesforce, file & database connectors Extended knowledge about MUnit and test-driven development Experience in Continuous Integration and Continuous Deployment using Maven, Jenkins, BitBucket, GIT, and Mulesoft Disclaimer: This vacancy is being advertised by either Advanced Resource More ❯

Kirtana consulting is looking for Oracle SOA Suite, API design and Oracle BPM consultant for 6months rolling contract in Cardiff. Job description: Role Title: Senior Consultant Detailed Job Description: Your role In the role of a Senior Consultant, you will lead the technical track, technical solution design, development and deployment. Your primary role would be to provide … have the opportunity to shape value-adding Technology solutions that enable our clients to meet the changing needs of the global landscape. REQUIRED SKILLS: Minimum 8 years of development, design experience with multiple industries At least 5 years of solution design, covering technical integration Experience on API Design First approach, knowledge on API Blueprint/…/SQL Following best practices while implementation and giving a confidence to the customer with quality deliverables Performing code review activities Proposing new solutions through PoCs Experience on any API management platform. Experience and knowledge on REST, SOAP, JSON, XML, XSD Knowledge on DevOps methodologies and tooling - Monitoring/ELK, APM, collaboration, ALM, dashboard etc. Knowledge on WebLogic Application More ❯

finance transformation programme. This is a high-impact position requiring strong expertise in Oracle Fusion Financials, specifically with experience migrating from Oracle EBS to Fusion. Key Responsibilities: Lead the design, development, and delivery of complex integrations using Oracle Integration Cloud (OIC) and other middleware technologies. Manage API integrations and data flows between Fusion and external systems. Work closely … as a Fusion Technical Lead on Oracle Finance transformation projects, including EBS to Fusion migrations. Strong expertise with Oracle Integration Cloud (OIC) and middleware integration frameworks. Experience working with API management and developing REST/SOAP integrations. Exposure to Azure middleware or similar cloud integration platforms connecting non-Oracle external systems is highly desirable. Solid understanding of FBDI, Oracle … collaborating with SIs and cross-functional teams in complex delivery environments. Skills & Qualifications: Oracle Fusion Financials and EBS knowledge Middleware expertise: OIC, SOA Suite, Azure Logic Apps or similar API design and management Strong communication and leadership skills Ability to work hands-on and mentor junior team members More ❯

and reports on threat telemetry which we are in a unique position to collect. You'll be at the forefront of cyber research and intelligence. What you'll do Design and build new user interfaces, as well as maintaining existing ones Maintain and improve the test infrastructure Maintain and improve the build systems Work closely with back-end developers … to steer API design What it's like As part of a small, focused, and talented team you'll get the support to deliver high quality, reliable work You'll be trusted to suggest and investigate then deliver new ideas You'll work from our brand-new offices in the heart of Cambridge, near to transport links Required … CSS, JS React Desirable Python/Django AWS Vue Webpack Sass TypeScript Experience with long-lived, large-scale front end projects Knowledge of web security issues and how to design to avoid them More ❯

at least 6 months - see below JD: Job Description: Proven track record of deliveringintegrationdesigns across large, complex environments (10+ systems) Hands-on experience with Azureintegrationtools (Logic Apps, Service Bus, API Management, etc.) Ability to lead discussions with vendor teams and drive design conversations Strong leadership in data model discussions, bridging the gap between IT and the business Solid … understanding or experience in the Microservices and built/modify existing API design Familiarity with Oracle Fusion, Simphony, and Opera, especially around Hospitality/supply chain, is a nice to have Want to know more - please contact us for an immediate interview More ❯

to Technology Readiness Level (TRL) 6/7. Develop a comprehensive functional specification for a Materials Data Bank (MDB) - a digital resource to optimise material selection while minimising waste. Design and implement APIs to seamlessly integrate the waste prediction too with BIM platforms and other digital systems Conduct a full review of data source s related to waste generation … Learning Expertise: Harness the power of ML to innovate and improve tools and systems. Data Analytics: Leverage analytical skills to interpret and manipulate complex datasets to derive actionable insights. API Design and Implementation: Build robust and efficient APIs to ensure system compatibility and integration. Don't miss this exciting opportunity to work at the forefront of impactful technology. More ❯

to Technology Readiness Level (TRL) 6/7. Develop a comprehensive functional specification for a Materials Data Bank (MDB) - a digital resource to optimise material selection while minimising waste. Design and implement APIs to seamlessly integrate the waste prediction too with BIM platforms and other digital systems Conduct a full review of data sources related to waste generation and … Learning Expertise: Harness the power of ML to innovate and improve tools and systems. Data Analytics: Leverage analytical skills to interpret and manipulate complex datasets to derive actionable insights. API Design and Implementation: Build robust and efficient APIs to ensure system compatibility and integration. Don't miss this exciting opportunity to work at the forefront of impactful technology. More ❯