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55 Contract API jobs in Oxfordshire + 20 miles
712 exact matches jobs are outside your preferred location
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Junior PHP Developer
Junior PHP Developer
Rise Technical Recruitment Limited
NN1, Northampton
£26000 - £34000 per annum + Great Benefits
Experience with Git version control and API integration
Experience with Git version control and API integration
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Practical knowledge in SQL/NoSQL databases and API development/integration.
Practical knowledge in SQL/NoSQL databases and API development/integration.
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API Development:Experience building data-centric APIs, especially withFastAPIon serverless platforms likeGoogle App Engine.
API Development:Experience building data-centric APIs, especially withFastAPIon serverless platforms likeGoogle App Engine.
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API integration
API integration
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Strong application security background (OWASP Top 10, API security).
Strong application security background (OWASP Top 10, API security).
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Writing automation scripts in Postman or Ready API * Experience with writing automation scripts in Postman or Ready API
Writing automation scripts in Postman or Ready API * Experience with writing automation scripts in Postman or Ready API
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Power Automate, PowerShell, SPFx MS Graph Api, Governance, Security. * Experience with Microsoft Graph API and REST APIs.
Power Automate, PowerShell, SPFx MS Graph Api, Governance, Security. * Experience with Microsoft Graph API and REST APIs.
Toolbox Management: Handle data repair jobs across all client sites, create new sites, configure exports, and set up API and ADV3 accounts.
Toolbox Management: Handle data repair jobs across all client sites, create new sites, configure exports, and set up API and ADV3 accounts.
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Design, build, and manage API integrations between HubSpot and other business-critical systems. * Hands-on experience with API integrations and working with third-party tools.
Design, build, and manage API integrations between HubSpot and other business-critical systems. * Hands-on experience with API integrations and working with third-party tools.
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Senior Infrastructure Operations Engineer - SC Cleared
Senior Infrastructure Operations Engineer - SC Cleared
Certes IT Service Solutions
London
£540 - £550 per day + Negotiable
Integration: Experience with Graph API, Logic Apps, and automation runbooks for cross-platform orchestration.
Integration: Experience with Graph API, Logic Apps, and automation runbooks for cross-platform orchestration.
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API and automation experience integrating with REST APIs, building automation scripts (Python, PowerShell, Bash), and embedding configuration into CI/CD pipelines.
API and automation experience integrating with REST APIs, building automation scripts (Python, PowerShell, Bash), and embedding configuration into CI/CD pipelines.
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.NET Framework Version 4.5 or above including strong WCF\ Web API experience
.NET Framework Version 4.5 or above including strong WCF\ Web API experience
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.NET Framework Version 4.5 or above including strong WCF\ Web API experience
.NET Framework Version 4.5 or above including strong WCF\ Web API experience
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Experience with AWS, Kubernetes, Service Mesh, and API Security (including authentication and authorization).
Experience with AWS, Kubernetes, Service Mesh, and API Security (including authentication and authorization).
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Knowledge of scripting languages like JavaScript and familiarity with Glide API
Knowledge of scripting languages like JavaScript and familiarity with Glide API
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Experience with AWS, Kubernetes, Service Mesh, API gateways, and API Security (authentication and authorization).
Experience with AWS, Kubernetes, Service Mesh, API gateways, and API Security (authentication and authorization).
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Student Systems Developer
Student Systems Developer
London School of Science & Technology Ltd T/a LSST
Park Royal, W3 0XA
Unspecified
Authentication & Integration Services API integrations, SSO (Single Sign-On), and system interoperability with University IT infrastructure.
Authentication & Integration Services API integrations, SSO (Single Sign-On), and system interoperability with University IT infrastructure.
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Role Title: Banking Solution Architect - Location: Knutsford or Northampton - Duration: Until 31/12/2025 - Day Rate: £467.50 Inside IR35 - We are seeking an experienced Solution Architect to provide technical leadership across core banking programmes, focusing on current account journeys, including loans, account switching, and related operational platforms. The successful candidate will be responsible for designing, developing, and implementing scalable, resilient, and secure technology solutions to address complex business challenges within the banking landscape. This role requires close collaboration with stakeholders across business and technology functions, ownership of architectural delivery, and guidance on integration strategies, balancing cloud adoption, automation, and regulatory compliance. Lead the design and technical architecture for current accounts, lo
Role Title: Banking Solution Architect - Location: Knutsford or Northampton - Duration: Until 31/12/2025 - Day Rate: £467.50 Inside IR35 - We are seeking an experienced Solution Architect to provide technical leadership across core banking programmes, focusing on current account journeys, including loans, account switching, and related operational platforms. The successful candidate will be responsible for designing, developing, and implementing scalable, resilient, and secure technology solutions to address complex business challenges within the banking landscape. This role requires close collaboration with stakeholders across business and technology functions, ownership of architectural delivery, and guidance on integration strategies, balancing cloud adoption, automation, and regulatory compliance. Lead the design and technical architecture for current accounts, lo
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Role/Job Title: Solution Architect - Work Location: Warwick, UK (3 days) Role Overview - The Solution Architect will be responsible for creating a business case to identify and select the most appropriate options for a Software as a Service (SaaS) application, whether available in the market or developed in-house. This role involves gathering and analysing requirements, designing architectural solutions, evaluating proposals through Request for Proposals (RFP), ensuring Non-Functional Requirements (NFR) are met, addressing security and IT controls, creating architectural artefacts, and leading the technical aspects of the SaaS deployment across multiple domains and Identity Provider (IdP) Single Sign-On (SSO) integrations. Additionally, the architect will understand business functional requirements to influence option selection effectively.
Role/Job Title: Solution Architect - Work Location: Warwick, UK (3 days) Role Overview - The Solution Architect will be responsible for creating a business case to identify and select the most appropriate options for a Software as a Service (SaaS) application, whether available in the market or developed in-house. This role involves gathering and analysing requirements, designing architectural solutions, evaluating proposals through Request for Proposals (RFP), ensuring Non-Functional Requirements (NFR) are met, addressing security and IT controls, creating architectural artefacts, and leading the technical aspects of the SaaS deployment across multiple domains and Identity Provider (IdP) Single Sign-On (SSO) integrations. Additionally, the architect will understand business functional requirements to influence option selection effectively.
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We employ a micro front-end (MFE) architecture on the web, and agentic workflows with API-first services behind it, to integrate risk insights seamlessly across workflows and surfaces. * Design, develop, and operate secure, scalable APIs/microservices in Python (FastAPI) or Java (Spring Boot), following API-first principles * Experience building and consuming APIs; strong grasp of REST/gRPC and API
We employ a micro front-end (MFE) architecture on the web, and agentic workflows with API-first services behind it, to integrate risk insights seamlessly across workflows and surfaces. * Design, develop, and operate secure, scalable APIs/microservices in Python (FastAPI) or Java (Spring Boot), following API-first principles * Experience building and consuming APIs; strong grasp of REST/gRPC and API
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The Digital Engineering team is responsible for providing unified digital experience to our clients that interact with Transaction Banking products via different interfaces such as Banking as a Service API, client portal, Files and SWIFT network. * Experience with Microservice architectures and REST API * Open API Familiarity with experience in building external API using REST and Webhooks
The Digital Engineering team is responsible for providing unified digital experience to our clients that interact with Transaction Banking products via different interfaces such as Banking as a Service API, client portal, Files and SWIFT network. * Experience with Microservice architectures and REST API * Open API Familiarity with experience in building external API using REST and Webhooks
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Proficient in hands-on development, coding, and API design.
Proficient in hands-on development, coding, and API design.
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Hybrid working - this opportunity requires 2-3 days / week on site in Warwickshire - Competitive salary offering - Backend Developer required for a leading client based in Warwickshire. You will come on board to design, build and optimise scalable services and APIs, relating to AI-based applications, ensuring seamless integration with the frontend. * Develop scalable server-side applications using Java Spring Boot and microservices architecture. * Build secure, high-performance RESTful APIs to support front-end integration. * Design and optimize relational databases (MySQL, PostgreSQL) for efficient data management. * Resolve performance bottlenecks and enhance system scalability and reliability. * Apply best practices in code quality, testing (JUnit, Mockito), and CI/CD pipelines. * Collaborate with cross-functional teams to deliver cohesive, end-to-end solutions.
Hybrid working - this opportunity requires 2-3 days / week on site in Warwickshire - Competitive salary offering - Backend Developer required for a leading client based in Warwickshire. You will come on board to design, build and optimise scalable services and APIs, relating to AI-based applications, ensuring seamless integration with the frontend. * Develop scalable server-side applications using Java Spring Boot and microservices architecture. * Build secure, high-performance RESTful APIs to support front-end integration. * Design and optimize relational databases (MySQL, PostgreSQL) for efficient data management. * Resolve performance bottlenecks and enhance system scalability and reliability. * Apply best practices in code quality, testing (JUnit, Mockito), and CI/CD pipelines. * Collaborate with cross-functional teams to deliver cohesive, end-to-end solutions.
Job title: Lead Integration Developer - Location: London, UK - Job type: Contract (Inside IR35) About the Role As a Lead Integration Developer, you will be responsible for designing, developing, and maintaining integration solutions across various platforms, including Guidewire InsuranceSuite and other core systems. You will lead a team of developers, collaborate with stakeholders, and ensure the delivery of integration projects that meet business and technical requirements. What will you do? * Lead the design and implementation of integration solutions using APIs, web services, and messaging systems. * Collaborate with business analysts and architects to define integration requirements and strategies. * Develop and maintain integration components using technologies such as Java, REST/JSON, XML, and Enterprise Messaging Systems.
Job title: Lead Integration Developer - Location: London, UK - Job type: Contract (Inside IR35) About the Role As a Lead Integration Developer, you will be responsible for designing, developing, and maintaining integration solutions across various platforms, including Guidewire InsuranceSuite and other core systems. You will lead a team of developers, collaborate with stakeholders, and ensure the delivery of integration projects that meet business and technical requirements. What will you do? * Lead the design and implementation of integration solutions using APIs, web services, and messaging systems. * Collaborate with business analysts and architects to define integration requirements and strategies. * Develop and maintain integration components using technologies such as Java, REST/JSON, XML, and Enterprise Messaging Systems.
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Location: Esher (two days WFH) Must have Right to Work in the UK (cannot provide sponsorship) This person will contribute directly to the organisations digital transformation roadmap by embedding automation and AI into our operations and business. This will involve building AI-powered conversational agents and automating business processes using Microsoft Power Platform tools like Power Apps, Power Automate, and Power Virtual Agents (part of Microsoft Copilot Studio). * Chatbot Development: Design, build, and implement AI chatbots using Power Virtual Agents/Copilot Studio to streamline interactions and automate tasks. * Process Automation: Create automated workflows and processes using Power Automate to improve efficiency and reduce manual tasks, often incorporating AI capabilities. * Application Development: Develop intelligent business applications with Power Apps,
Location: Esher (two days WFH) Must have Right to Work in the UK (cannot provide sponsorship) This person will contribute directly to the organisations digital transformation roadmap by embedding automation and AI into our operations and business. This will involve building AI-powered conversational agents and automating business processes using Microsoft Power Platform tools like Power Apps, Power Automate, and Power Virtual Agents (part of Microsoft Copilot Studio). * Chatbot Development: Design, build, and implement AI chatbots using Power Virtual Agents/Copilot Studio to streamline interactions and automate tasks. * Process Automation: Create automated workflows and processes using Power Automate to improve efficiency and reduce manual tasks, often incorporating AI capabilities. * Application Development: Develop intelligent business applications with Power Apps,
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