Contract API Integration Jobs in the UK

15 of 15 Contract API Integration Jobs in the UK

Senior Full Stack Developer (SAP/ Salesforce)

United Kingdom
BrightBox Group
solutions using C# .Net and Java. - Create responsive and user-friendly front-end applications leveraging React JS (ideally with Redux and Webpack), HTML5, CSS3, ES6+, or Typescript. - Engage in API development and integration, ensuring smooth interaction between various software systems. - Utilise cloud solutions, preferably Microsoft Azure, for hosting applications and managing data. - Write clean, tested code that integrates … or Salesforce. - Strong proficiency in C# .Net and Java. - Extensive knowledge of front-end technologies, including React JS (with Redux and Webpack), HTML5, CSS3, ES6+, or Typescript. - Familiarity with API development, integration, and cloud technologies (preferably Azure). - Experience in CI/CD processes and relevant tools (Azure DevOps, Git, Jenkins, etc.). - Nice to have: Knowledge of More ❯
Employment Type: Contract
Rate: GBP 500 - 575 Daily
Posted:

Senior Full Stack Developer (SAP/ Salesforce)

Remote work, United Kingdom
Hybrid / WFH Options
BrightBox Group
solutions using C# .Net and Java. - Create responsive and user-friendly front-end applications leveraging React JS (ideally with Redux and Webpack), HTML5, CSS3, ES6+, or Typescript. - Engage in API development and integration, ensuring smooth interaction between various software systems. - Utilise cloud solutions, preferably Microsoft Azure, for hosting applications and managing data. - Write clean, tested code that integrates … or Salesforce. - Strong proficiency in C# .Net and Java. - Extensive knowledge of front-end technologies, including React JS (with Redux and Webpack), HTML5, CSS3, ES6+, or Typescript. - Familiarity with API development, integration, and cloud technologies (preferably Azure). - Experience in CI/CD processes and relevant tools (Azure DevOps, Git, Jenkins, etc.). - Nice to have: Knowledge of More ❯
Employment Type: Contract
Rate: £500 - £575/day
Posted:

API Integration Developer

City of London, London, United Kingdom
Hybrid / WFH Options
Tenth Revolution Group
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, and documentation 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 orchestration. Document integration specifications and processes clearly for future maintenance and support. Collaboration & Client Integration Support: Liaise with third-party vendors and client IT teams to align More ❯
Employment Type: Contract
Rate: £300 - £400/day
Posted:

Java Software Engineer - Remote - 6 months - Must Have AI Experience F

United Kingdom
Hybrid / WFH Options
Stealth IT Consulting Limited
technical documentation Essential Skills & Experience Strong commercial experience in Java (8+) and Node.js Experience working in agile, multidisciplinary teams in a government or large enterprise environment Proficiency in RESTful API development and integration Experience with CI/CD pipelines and version control systems (eg Git) Familiarity with cloud platforms (preferably AWS or Azure) Solid understanding of software engineering More ❯
Employment Type: Contract
Rate: £538 per day 538 Inside IR35
Posted:

API Integration developer

Nationwide, United Kingdom
Tenth Revolution Group
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 orchestration. Document integration specifications and processes clearly for future maintenance and support. Collaboration & Client Integration Support: Liaise with third-party vendors and client IT teams to align technical details. Work closely with Technoivity consultants to align API designs with functional requirements. Participate in workshops, contribute technical insight, and support user acceptance testing. Deliver training, handover More ❯
Employment Type: Contract
Rate: £300 - £400/day
Posted:

Full Stack Developer Python React

London, United Kingdom
Hybrid / WFH Options
PCR Digital
cross-functional engineering and product teams. Key Responsibilities Design, build, and maintain robust, scalable full-stack applications using: React for front-end user interfaces Python for backend services and API development Swift for iOS mobile app components and automation Develop and maintain automated testing frameworks for mobile (iOS) and web applications using Appium , Selenium , and Python Write and maintain … test automation scripts to support continuous integration and continuous delivery (CI/CD) pipelines Collaborate with engineering and product teams to ensure high-quality releases across new features and existing functionality Implement and monitor CI/CD pipelines using tools like Jenkins Maintain data integrity and security across the application stack using PostgreSQL Troubleshoot and resolve technical issues across … the stack, including API integrations, database performance, and frontend bugs Contribute to technical documentation, test plans, and engineering best practices Required Qualifications 7+ years of professional software engineering experience, with a strong focus on full stack development Proficiency in: Python for backend and automation React/JavaScript for frontend development Swift and iOS ecosystem for mobile development and automation More ❯
Employment Type: Contract
Rate: GBP 425 Daily
Posted:

Senior Mulesoft Developer (SC Cleared)

Hampshire, United Kingdom
Hybrid / WFH Options
ARM
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 stories for integration and service optimisation Documenting solutions through flowcharts, diagrams, code comments, clear code and via Confluence/knowledge base articles Ensuring compliance with quality guidelines (Unit Tests, Code Quality, Test Driven Development) Addressing non-functional requirements and operational/support-relevant topics during conception and implementation (e.g. logging, capacity/performance management, monitoring and distributed tracing …/debugging) End-to-end thinking during development - supporting and improving releases from test to integration and production environments Presentation and demonstration of concepts and services via show-and-tell demos, tech-talks and taking part in direct user feedback and evaluation sessions Following agile software development lifecycles, but maintaining foresight to reduce tech debt where possible and not More ❯
Employment Type: Contract
Rate: £585/day Inside IR35
Posted:

Python Developer

Edinburgh, Midlothian, United Kingdom
Provn Talent Solutions
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 ❯
Employment Type: Contract
Rate: GBP Annual
Posted:

JIRA Developer

City of London, London, United Kingdom
Hybrid / WFH Options
Randstad Digital
methodologies. Experience creating and managing Scrum/Kanban boards, filters, dashboards, and reports. Skilled in Jira upgrades and Atlassian suite management (installation, migration, upgrades, patching). Experience with Jira API integrations. What We're Looking For Excellent communication and collaboration skills. Ability to work independently and proactively identify areas for improvement. Strong attention to detail and problem-solving abilities. More ❯
Employment Type: Contract
Posted:

Full Stack Engineer - Vue.js/Laravel

London, United Kingdom
Hybrid / WFH Options
SR2 - Socially Responsible Recruitment
joining a fast-paced Agile environment, contributing to the delivery of secure, scalable applications in the financial services space. The engineers will be focused on Back End architecture and API integrations, with Vue.js on the Front End. Desirable (Not Essential): Experience working in regulated environments (Banking, Insurance) Familiarity with Agile ceremonies and CI/CD pipelines Contract Details: Start More ❯
Employment Type: Contract
Rate: GBP 400 - 425 Daily
Posted:

Senior Linux Engineer

Sheffield, South Yorkshire, Yorkshire, United Kingdom
Hybrid / WFH Options
VANLOQ LIMITED
virtualization technologies (VMware, Hypervisor). Familiarity with VCS Infoscale clustering , and strong knowledge of networking fundamentals (TCP/IP, firewall rules, port management). Exposure to Postman, Mulesoft , and API integrations. ?? Desirable Skills: Familiarity with Git and Agile methodologies . Experience across non-RHEL UNIX variants (Solaris, AIX, SLES). Proactive mindset able to suggest and implement improvements to More ❯
Employment Type: Contract, Work From Home
Posted:

Senior Fusion Technical Lead

Milton Keynes, Buckinghamshire, United Kingdom
Skillsbay Ltd
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 with the Systems Integrator (SI) and internal teams to … ensure seamless, scalable, and efficient integration solutions. Support the migration and transformation from EBS to Fusion Finance modules, focusing on integration challenges and business outcomes. Collaborate across technical and business stakeholders to deliver high-quality results on time. Required Experience: Proven hands-on experience 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 Integration Fabric, and related Oracle financial tools. Experience collaborating with More ❯
Employment Type: Permanent, Contract, Temporary
Posted:

Data Transformation Business Analyst

Shoreham-By-Sea, West Sussex, United Kingdom
Hybrid / WFH Options
Tenth Revolution Group
design Knowledge of database platforms (SQL Server, Oracle, MySQLPostgreSQL, or similar) and ideally warehouse solutions (Snowflake) Experience working with data transformation tools, including setting test parameters for quality. Systems Integration & Architecture Deep understanding of enterprise system architectures and data flow dependencies Experience with both proprietary custom-built systems and commercial platforms (ServiceNow preferred) Strong knowledge of API integrations … of Strategic Programs and will work closely with: Data Architecture team Data & Analytics team Development teams and technical architects Senior business stakeholders across all divisions External system vendors and integration partners More ❯
Employment Type: Contract
Rate: £300 - £600/day
Posted:

Senior Full-Stack Ruby Developer

London, United Kingdom
Hybrid / WFH Options
SR2
market-leading platform. Required Experience: Extensive experience in building complex web applications using Ruby on Rails. Particularly beneficial if you have experience working on SaaS platforms. Deep understanding of API integrations , such as RESTful APIs, OAuth, and webhook. Will also require extensive knowledge of GraphQL and ApolloDB Confident in background job processing (Sidekiq/Resque) and asynchronous services. Exposure More ❯
Employment Type: Contract
Rate: £600/day
Posted:

Senior Salesforce Developer

Nottingham, Nottinghamshire, East Midlands, United Kingdom
Hybrid / WFH Options
LA International Computer Consultants Ltd
functional pod, you will guide the technical direction, ensuring the delivery of high-quality, scalable solutions using the latest Salesforce technologies including Apex, Lightning Web Components (LWC), Flows, and API integrations. This role involves close collaboration with Product Managers to transform complex business requirements into robust technical designs and actionable user stories. Your involvement will shape the technical excellence More ❯
Employment Type: Contract
Posted:
API Integration
10th Percentile
£380
25th Percentile
£414
Median
£500
75th Percentile
£600
90th Percentile
£688