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22 Contract API jobs in Wallingford + 20 miles
420 exact matches jobs are outside your preferred location
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Frontend Developer - React.js - Warwickshire - Permanent
Frontend Developer - React.js - Warwickshire - Permanent
Crimson
CV31, Leamington Spa
£55000 - £65000 per annum
Hybrid working - Warwickshire - Salary - £55,000 - £65,000 per annum - Frontend Developer required for a leading client based in Warwickshire. You will come on board to focus on the design and development of scalable UI interfaces relating to AI-powered automation products and solutions. * Skilled in designing and building responsive, high-performance applications using React.js, JavaScript (ES6+), HTML5, and CSS3. * Experienced in integrating RESTful APIs and collaborating with back-end teams to ensure seamless data flow. * Proficient in creating reusable, modular components with scalable and maintainable code architecture. * Strong focus on performance, accessibility (WCAG), and user experience, leveraging tools like Material-UI and Tailwind CSS. * Familiar with TypeScript, modern build tools (Webpack, Babel, Vite), and testing frameworks (Jest, React Testing Librar
Hybrid working - Warwickshire - Salary - £55,000 - £65,000 per annum - Frontend Developer required for a leading client based in Warwickshire. You will come on board to focus on the design and development of scalable UI interfaces relating to AI-powered automation products and solutions. * Skilled in designing and building responsive, high-performance applications using React.js, JavaScript (ES6+), HTML5, and CSS3. * Experienced in integrating RESTful APIs and collaborating with back-end teams to ensure seamless data flow. * Proficient in creating reusable, modular components with scalable and maintainable code architecture. * Strong focus on performance, accessibility (WCAG), and user experience, leveraging tools like Material-UI and Tailwind CSS. * Familiar with TypeScript, modern build tools (Webpack, Babel, Vite), and testing frameworks (Jest, React Testing Librar
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Oracle Revenue Management Production Support Service Engineer
Oracle Revenue Management Production Support Service Engineer
DCV Technologies Limited
SE1, South East London
From £400 to £450 per day
Position Overview - We are seeking a skilled Service Engineer to provide comprehensive production support for Oracle Revenue Management, Receivables, and Intercompany processes. This role requires both financial accounting expertise and technical troubleshooting capabilities to ensure revenue recognition compliance and seamless system operations. Key Responsibilities - Revenue Recognition & Compliance - Support ASC 606/IFRS 15 revenue recognition principles in production systems - Troubleshoot and maintain Revenue Contracts, Performance Obligations, and Standalone Selling Price (SSP) calculations - Resolve issues with Revenue Deferrals, Revenue Allocations, and Adjustments - Ensure revenue compliance through Multi-Currency and Multi-GAAP Reporting - Assist with Deferred Revenue and Unbilled Revenue Accruals processing - Receive, analyze, and prioritize related support
Position Overview - We are seeking a skilled Service Engineer to provide comprehensive production support for Oracle Revenue Management, Receivables, and Intercompany processes. This role requires both financial accounting expertise and technical troubleshooting capabilities to ensure revenue recognition compliance and seamless system operations. Key Responsibilities - Revenue Recognition & Compliance - Support ASC 606/IFRS 15 revenue recognition principles in production systems - Troubleshoot and maintain Revenue Contracts, Performance Obligations, and Standalone Selling Price (SSP) calculations - Resolve issues with Revenue Deferrals, Revenue Allocations, and Adjustments - Ensure revenue compliance through Multi-Currency and Multi-GAAP Reporting - Assist with Deferred Revenue and Unbilled Revenue Accruals processing - Receive, analyze, and prioritize related support
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Technically sharpAI Prompt Engineer - Youll design and optimize prompts, build LLM-powered applications, and deploy scalable GenAI solutions that connect people and intelligent systems in new ways. What Youll Do * Design, test, and refine prompts for leading LLMs (GPT-4/5, Claude, Gemini, Mistral, LLaMA, Cohere). * Experiment with advanced prompting techniques; Chain-of-Thought, ReAct, Tree-of-Thoughts, and more. * Deploy AI/ML pipelines using Azure ML, AWS SageMaker, Vertex AI, or Databricks. * Integrate LLMs into production apps using LangChain, LlamaIndex, and RAG architectures. * Build APIs and microservices for scalable AI deployment. * Use AI-powered dev tools like GitHub Copilot, Cursor, and Codeium to speed up iteration. * Apply MLOps/LLMOps practices with MLflow, Weights & Biases, and Kubeflow. Youll Bring
Technically sharpAI Prompt Engineer - Youll design and optimize prompts, build LLM-powered applications, and deploy scalable GenAI solutions that connect people and intelligent systems in new ways. What Youll Do * Design, test, and refine prompts for leading LLMs (GPT-4/5, Claude, Gemini, Mistral, LLaMA, Cohere). * Experiment with advanced prompting techniques; Chain-of-Thought, ReAct, Tree-of-Thoughts, and more. * Deploy AI/ML pipelines using Azure ML, AWS SageMaker, Vertex AI, or Databricks. * Integrate LLMs into production apps using LangChain, LlamaIndex, and RAG architectures. * Build APIs and microservices for scalable AI deployment. * Use AI-powered dev tools like GitHub Copilot, Cursor, and Codeium to speed up iteration. * Apply MLOps/LLMOps practices with MLflow, Weights & Biases, and Kubeflow. Youll Bring
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We need talented engineers with a strong low-level graphics and GPU development background on the Android platform, ideally with experience of working in the consumer electronics industry. This contract will be hybrid (3 days a week onsite, 2 remote), based near Egham. Its within IR35 but offering a good rate to offset that! The successful candidate will contribute to new, high-performance graphics solutions, integrate our solutions with new hardware platforms, optimise the Android OS graphics stack, benchmark our systems against competitors, work with 3rd party software developers and generally ensure that we have the best possible graphics experience on the market. Role and Responsibilities - Develop innovations to optimise real-time rendering pipelines and deliver class-leading performance - Implement standard features and extensions for the Android Graphics stack
We need talented engineers with a strong low-level graphics and GPU development background on the Android platform, ideally with experience of working in the consumer electronics industry. This contract will be hybrid (3 days a week onsite, 2 remote), based near Egham. Its within IR35 but offering a good rate to offset that! The successful candidate will contribute to new, high-performance graphics solutions, integrate our solutions with new hardware platforms, optimise the Android OS graphics stack, benchmark our systems against competitors, work with 3rd party software developers and generally ensure that we have the best possible graphics experience on the market. Role and Responsibilities - Develop innovations to optimise real-time rendering pipelines and deliver class-leading performance - Implement standard features and extensions for the Android Graphics stack
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Excellent Azure services including Logic Apps, Functions, API Management, and Azure DevOps.
Excellent Azure services including Logic Apps, Functions, API Management, and Azure DevOps.
FEATURED
Lead Software Developer - Python / AWS / React
Lead Software Developer - Python / AWS / React
Tech 4
E1, East London
From £72,000 to £76,000 per annum + excellent benefits
Experience with AWS services (Lambda, SQS, API gateways, S3).
Experience with AWS services (Lambda, SQS, API gateways, S3).
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Senior C# Developer - Finance
Senior C# Developer - Finance
Client Server
The City, EC4
£100000 - £150000 per annum + bonus + benefits
There's a focus on C# .Net backend and API development although you'll also have elements of front end work with JavaScript and React.js.
There's a focus on C# .Net backend and API development although you'll also have elements of front end work with JavaScript and React.js.
NEWPREMIUM
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Deep Azure expertise, with M365 ecosystem governance: Power Platform, E5 optimisation, Azure integration services such as Logic Apps, Service Bus, Event Grid, API Management).
Deep Azure expertise, with M365 ecosystem governance: Power Platform, E5 optimisation, Azure integration services such as Logic Apps, Service Bus, Event Grid, API Management).
NEW
Role: API Integration Engineer - We are seeking a highly skilled API Integration Engineer to join our technology team. * Design, build, and maintain API integrations for telecom OSS/BSS systems, Openreach APIs, supplier platforms, and enterprise applications. * Manage API version upgrades and partner change notifications. * Apply robust fault handling, retry logic, and back-off strategies for resilient API operations. * Design and maintain CI/CD pipelines using GitLab, Azure DevOps, and Jenkins for API and data workflow deployments. * Work closely with the Chief Enterprise & Security Officer and enterprise architects to co-develop a five-year, API-first roadmap for intelligent, context-aware systems. * Provide technical leadership and guidance on mode
Role: API Integration Engineer - We are seeking a highly skilled API Integration Engineer to join our technology team. * Design, build, and maintain API integrations for telecom OSS/BSS systems, Openreach APIs, supplier platforms, and enterprise applications. * Manage API version upgrades and partner change notifications. * Apply robust fault handling, retry logic, and back-off strategies for resilient API operations. * Design and maintain CI/CD pipelines using GitLab, Azure DevOps, and Jenkins for API and data workflow deployments. * Work closely with the Chief Enterprise & Security Officer and enterprise architects to co-develop a five-year, API-first roadmap for intelligent, context-aware systems. * Provide technical leadership and guidance on mode
NEW
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API-OpenAPI/GraphQL/GRPC
API-OpenAPI/GraphQL/GRPC
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Experience in developing and deploying Cloud Native Applications using Azure PaaS Capabilities (App Services Plans, Key Vault, SQL Azure DB, AzureFunctions, Containers, AKS, Logic Apps, Service Bus, Event Grid, API Management) * Enterprise Integration Technologies such as Azure API Management, Logic Apps, Service Bus.
Experience in developing and deploying Cloud Native Applications using Azure PaaS Capabilities (App Services Plans, Key Vault, SQL Azure DB, AzureFunctions, Containers, AKS, Logic Apps, Service Bus, Event Grid, API Management) * Enterprise Integration Technologies such as Azure API Management, Logic Apps, Service Bus.
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Azure, API, PaaS * In-depth knowledge of Azure cloud services (PaaS, Containers, AKS, Logic Apps, API Management, Service Bus, Event Grid).
Azure, API, PaaS * In-depth knowledge of Azure cloud services (PaaS, Containers, AKS, Logic Apps, API Management, Service Bus, Event Grid).
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Experience with Java and API testing using Postman.
Experience with Java and API testing using Postman.
NEW
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API development and documentation experience.
API development and documentation experience.
NEW
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Required Skills - * We're primarily using AWS, utilising Lambda, ECS, SQS, API Gateway among others.
Required Skills - * We're primarily using AWS, utilising Lambda, ECS, SQS, API Gateway among others.
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Required Skills - * We're primarily using AWS, utilising Lambda, ECS, SQS, API Gateway among others.
Required Skills - * We're primarily using AWS, utilising Lambda, ECS, SQS, API Gateway among others.
RESTful API development
RESTful API development
NEW
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Experience with some of the technologies we make use of: Groovy, Python, AWS Serverless (API Gateway, Lambdas), XML, JSON, Open API, virtualisation in general and especially Docker and its eco system, Git, NoSQL products and concepts (Dynamo, column family, etc.)
Experience with some of the technologies we make use of: Groovy, Python, AWS Serverless (API Gateway, Lambdas), XML, JSON, Open API, virtualisation in general and especially Docker and its eco system, Git, NoSQL products and concepts (Dynamo, column family, etc.)
NEW
Senior Security Engineer Defender PurView Sentinel
Senior Security Engineer Defender PurView Sentinel
Invitise Ltd
EC1A, City of London
Up to £500 per day Outside IR35
PowerShell scripting and use of Microsoft Graph API
PowerShell scripting and use of Microsoft Graph API
NEW
Knowledge on CPM Plugins and REST API
Knowledge on CPM Plugins and REST API
FEATURED
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Quantitative Analyst - Modelling and Structured Credit
Quantitative Analyst - Modelling and Structured Credit
CBSbutler Holdings Limited
EC1, City of London
£80000 - £120000 per annum + Bonus + Full Benefits
Leverage and integrate Intex analytics, with particular focus on the latest Intex API. o Solid, hands-on experience with Intex, including recent use of the latest Intex API.
Leverage and integrate Intex analytics, with particular focus on the latest Intex API. o Solid, hands-on experience with Intex, including recent use of the latest Intex API.
NEW
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• Understanding of C#, ASP.NET MVC/Core/Blazor, Web API, and Entity Framework for backend development.
• Understanding of C#, ASP.NET MVC/Core/Blazor, Web API, and Entity Framework for backend development.
NEW
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Integration & API Testing - proficiency with REST/OData service testing using tools like Postman or SoapUI
Integration & API Testing - proficiency with REST/OData service testing using tools like Postman or SoapUI
NEW
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Strong knowledge of Django (or similar) and API design
Strong knowledge of Django (or similar) and API design
NEW
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DevOps experience a bonus e.g. Terraform, Drone, Kubernetes cluster management for microservice style API data consumption
DevOps experience a bonus e.g. Terraform, Drone, Kubernetes cluster management for microservice style API data consumption
FEATURED