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- Budbrooke Industrial Estate
- Datchet Common
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- Harmondsworth
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7 Contract API jobs in Cassington + 20 miles
491 exact matches jobs are outside your preferred location
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Upwork Job Brief Mobile App Developer (React Native or Flutter) Project Overview - We are looking for an experienced mobile app developer to build a new application from the ground up. The project involves end-to-end development, including frontend, backend, real-time features, and a clean, intuitive user experience. You should be comfortable taking a concept and turning it into a fully functional, production-ready app. Responsibilities * Build a cross-platform mobile app usingReact NativeorFlutter. * Develop backend services usingFirebase / Supabase / Node.js / AWS / GCP. * ImplementRESTful APIs, real-time messaging, and push notifications. * Integrate payment solutions such asStripe, Apple Pay, or Google Pay. * Collaborate on UI/UX flows to ensure a smooth, modern user experience. * Ensure robust data protection, authentication, andUK GDPRcompliance. Required Skills
Upwork Job Brief Mobile App Developer (React Native or Flutter) Project Overview - We are looking for an experienced mobile app developer to build a new application from the ground up. The project involves end-to-end development, including frontend, backend, real-time features, and a clean, intuitive user experience. You should be comfortable taking a concept and turning it into a fully functional, production-ready app. Responsibilities * Build a cross-platform mobile app usingReact NativeorFlutter. * Develop backend services usingFirebase / Supabase / Node.js / AWS / GCP. * ImplementRESTful APIs, real-time messaging, and push notifications. * Integrate payment solutions such asStripe, Apple Pay, or Google Pay. * Collaborate on UI/UX flows to ensure a smooth, modern user experience. * Ensure robust data protection, authentication, andUK GDPRcompliance. Required Skills
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AI Developer - Generative AI Specialist - 3 months+ - Hybrid - Rate circa £500-£650 - We are looking for an experienced AI Developer to join a team developing cutting edge AI solutions who will either have current and active SC clearance or have the ability to be able to obtain SC clearance. You will provide solutions across both Azure and AWS technologies and importantly have a demonstrable background in C#.Net . This will be a very much collaborative role working with a range of domain experts. Being the AI SME you will provide technical expertise on GenAI capabilities and its limitations to the non-technical people. What you will bring to the team * Fine-tune Large Language Models (LLMs) and other generative architectures. * Optimise pre-trained models (OpenAI, Anthropic, or open-source LLMs) for business use cases using prompt engineering and reinforcement learnin
AI Developer - Generative AI Specialist - 3 months+ - Hybrid - Rate circa £500-£650 - We are looking for an experienced AI Developer to join a team developing cutting edge AI solutions who will either have current and active SC clearance or have the ability to be able to obtain SC clearance. You will provide solutions across both Azure and AWS technologies and importantly have a demonstrable background in C#.Net . This will be a very much collaborative role working with a range of domain experts. Being the AI SME you will provide technical expertise on GenAI capabilities and its limitations to the non-technical people. What you will bring to the team * Fine-tune Large Language Models (LLMs) and other generative architectures. * Optimise pre-trained models (OpenAI, Anthropic, or open-source LLMs) for business use cases using prompt engineering and reinforcement learnin
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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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Job Title: Customer Success Manager - Location: London, (Bishopsgate) - Hybrid (3 days WFH, 2 days on site) Salary: Up to £48,000 - As a Customer Success Manager, you'll be the bridge between clients and internal technical teams, ensuring seamless integration, onboarding, and long-term satisfaction. You'll manage integration support cases, monitor performance, and proactively resolve challenges to keep clients engaged and successful. This company are a global Ai focused consultancy shaping the future of their industry. They blend deep actuarial expertise with Ai to help their clients grow sustainably. With over a dozen offices across the EMEA and US offices, they champion diversity, collaboration, and are at the forefront of consumer-centric tech in their industry. They are making a real impact on their industry worldwide.
Job Title: Customer Success Manager - Location: London, (Bishopsgate) - Hybrid (3 days WFH, 2 days on site) Salary: Up to £48,000 - As a Customer Success Manager, you'll be the bridge between clients and internal technical teams, ensuring seamless integration, onboarding, and long-term satisfaction. You'll manage integration support cases, monitor performance, and proactively resolve challenges to keep clients engaged and successful. This company are a global Ai focused consultancy shaping the future of their industry. They blend deep actuarial expertise with Ai to help their clients grow sustainably. With over a dozen offices across the EMEA and US offices, they champion diversity, collaboration, and are at the forefront of consumer-centric tech in their industry. They are making a real impact on their industry worldwide.
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The successful applicant will have comprehensive expertise in Microsoft Azure services, Web API, Azure App Service, .NET Core, and Visual Studio. * Design and implement scalable cloud solutions utilizing Azure App Service, Web API, and .NET Core. * Define architecture patterns for microservices, API management, and integration with enterprise systems. * Utilize Azure Functions, Azure Logic Apps, Azure API Management, and Azure Storage to develop robust applications. * Expertise in Microsoft Azure services, including App Service, Functions, API Management, Storage, and Networking. * Strong knowledge of .NET Core, Web API, C#, and Visual Studio.
The successful applicant will have comprehensive expertise in Microsoft Azure services, Web API, Azure App Service, .NET Core, and Visual Studio. * Design and implement scalable cloud solutions utilizing Azure App Service, Web API, and .NET Core. * Define architecture patterns for microservices, API management, and integration with enterprise systems. * Utilize Azure Functions, Azure Logic Apps, Azure API Management, and Azure Storage to develop robust applications. * Expertise in Microsoft Azure services, including App Service, Functions, API Management, Storage, and Networking. * Strong knowledge of .NET Core, Web API, C#, and Visual Studio.
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Penetration Tester (Active SC Clearance)
Penetration Tester (Active SC Clearance)
Infoplus Technologies UK Ltd
Warwick (CV34)
From £350 to £400 per day
Experience working in API testing, Network technologies and cloud solutions
Experience working in API testing, Network technologies and cloud solutions
Extensive experience of API testing, REST & SOAP
Extensive experience of API testing, REST & SOAP
Extensive experience of API testing, REST & SOAP
Extensive experience of API testing, REST & SOAP
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Architect secure integrations with Azure services (Functions, Logic Apps, Service Bus, API Management, Event Grid), Microsoft 365, and line-of-business systems via custom connectors * Integration design using Azure Functions, Logic Apps, API Management, Service Bus, Event Grid, custom connectors, and webhooks * Azure: Functions, Logic Apps, API Management, Service Bus, Event Grid, Key Vault, Monitor, Application Insights
Architect secure integrations with Azure services (Functions, Logic Apps, Service Bus, API Management, Event Grid), Microsoft 365, and line-of-business systems via custom connectors * Integration design using Azure Functions, Logic Apps, API Management, Service Bus, Event Grid, custom connectors, and webhooks * Azure: Functions, Logic Apps, API Management, Service Bus, Event Grid, Key Vault, Monitor, Application Insights
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Skilled in API development and microservices architecture
Skilled in API development and microservices architecture
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Senior Frontend Developer
Senior Frontend Developer
Pathfinder Business Solutions Ltd
Milton Keynes (MK9), MK9 3QA
From £50,000 to £60,000 per annum Full Benefits Pack
REST-based API development
REST-based API development
Hands-on experience with API development and microservices architecture and end-to-end integrations * Hands-on experience with API development and microservices architecture * Knowledge of API Gateways and ISTIO, ability to diagnose and intercept failures in end-to-end communication
Hands-on experience with API development and microservices architecture and end-to-end integrations * Hands-on experience with API development and microservices architecture * Knowledge of API Gateways and ISTIO, ability to diagnose and intercept failures in end-to-end communication
AWS: API gateway, RDS, Cloudfront, Cognito, Terraform, GitHub, GitFlow pipelines
AWS: API gateway, RDS, Cloudfront, Cognito, Terraform, GitHub, GitFlow pipelines
Familiarity with REST API and Soap Services
Familiarity with REST API and Soap Services
Microservices architecture, API-first approach, containerisation (Docker/Kubernetes), CI/CD pipelines * Knowledge of integration patterns, API gateways, and cloud-native deployments
Microservices architecture, API-first approach, containerisation (Docker/Kubernetes), CI/CD pipelines * Knowledge of integration patterns, API gateways, and cloud-native deployments
Deep knowledge of REST API design, scalability, fault tolerance, and performance optimization.
Deep knowledge of REST API design, scalability, fault tolerance, and performance optimization.
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Data exchange and processing skills (e.g. ETL, ESB, API...)
Data exchange and processing skills (e.g. ETL, ESB, API...)
FEATURED
Design, develop, and deliver custom solutions within Planon's API framework.
Design, develop, and deliver custom solutions within Planon's API framework.
FEATURED
Design, develop, and deliver custom solutions within Planon's API framework.
Design, develop, and deliver custom solutions within Planon's API framework.
FEATURED
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Infrastructure: AWS (Aurora, Redis, DynamoDB, S3, SNS, SQS, CloudFront, API Gateway)
Infrastructure: AWS (Aurora, Redis, DynamoDB, S3, SNS, SQS, CloudFront, API Gateway)
As a Senior Software Engineer on the Issues API team at Snyk, you will have the opportunity to build highly scalable, performant APIs that are critical to our customers. As a part of our team, you'll be on the front lines of building and evolving our API layer, a critical component of Snyk's platform.
As a Senior Software Engineer on the Issues API team at Snyk, you will have the opportunity to build highly scalable, performant APIs that are critical to our customers. As a part of our team, you'll be on the front lines of building and evolving our API layer, a critical component of Snyk's platform.
Your mission is to define and execute the strategy, roadmap, and delivery of our API products to maximise adoption, user engagement, and customer value. * Define and own the strategy, vision, and roadmap for Powered by CUBE and RegConnect (API). * Champion data-led decision making by monitoring API adoption, usage, and performance metrics to inform prioritisation. * Proven track record of delivering API products, developer tools, or integration platforms with measurable adoption and value. * Hands-on knowledge of REST APIs, authentication protocols (OAuth, API keys), and integration workflows. * Experience with API documentation standards (Swagger/OpenAPI) and developer experience best practices.
Your mission is to define and execute the strategy, roadmap, and delivery of our API products to maximise adoption, user engagement, and customer value. * Define and own the strategy, vision, and roadmap for Powered by CUBE and RegConnect (API). * Champion data-led decision making by monitoring API adoption, usage, and performance metrics to inform prioritisation. * Proven track record of delivering API products, developer tools, or integration platforms with measurable adoption and value. * Hands-on knowledge of REST APIs, authentication protocols (OAuth, API keys), and integration workflows. * Experience with API documentation standards (Swagger/OpenAPI) and developer experience best practices.
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You consider things like API documentation, SDK functionality, and developer onboarding and can speak the language of a developer.
You consider things like API documentation, SDK functionality, and developer onboarding and can speak the language of a developer.
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Knowledge of architectural patterns and best practices for software integration, such as Service-Oriented Architecture (SOA), Microservices, Enterprise Service Bus (ESB), Application Programming Interface (API) design, etc.
Knowledge of architectural patterns and best practices for software integration, such as Service-Oriented Architecture (SOA), Microservices, Enterprise Service Bus (ESB), Application Programming Interface (API) design, etc.
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Comfortable working with API-driven products or infrastructure and translating technical capability into customer value.
Comfortable working with API-driven products or infrastructure and translating technical capability into customer value.
NEW
Related Jobs
Locations
- Budbrooke Industrial Estate
- Datchet Common
- Freshbrook
- Grazeley
- Harmondsworth
- Ireland
- Longbridge
- Milton Keynes
- Reading
- Birmingham
- Bristol
- Warwick
- Abingdon
- Basingstoke
- Cheltenham
- Corsham
- Luton
- London
- Berkshire
- Buckinghamshire
- Warwickshire
- Oxfordshire
- Hertfordshire
- West Midlands
- Wiltshire
- Avon
- Bedfordshire
- South East
- Midlands
- South West
- East Midlands