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1 Contract API job in Chelmsford + 20 miles
363 exact matches jobs are outside your preferred location
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
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AWS: API gateway, RDS, Cloudfront, Cognito, Terraform, GitHub, GitFlow pipelines
AWS: API gateway, RDS, Cloudfront, Cognito, Terraform, GitHub, GitFlow pipelines
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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AI Prompt Engineer
AI Prompt Engineer
Staffworx Limited
East London (E1)
market rates, outside IR35, remote first, UK but 1-2 days on site
Integrate LLMs into applications usingLangChain,LlamaIndex,Haystack,AutoGen and OpenAIs Assistant API patterns.
Integrate LLMs into applications usingLangChain,LlamaIndex,Haystack,AutoGen and OpenAIs Assistant API patterns.
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Shift to the left: Functional test automation (API testing, UI testing [cucumber, nightwatch])
Shift to the left: Functional test automation (API testing, UI testing [cucumber, nightwatch])
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Salesforce Marketing Cloud Engineer
Salesforce Marketing Cloud Engineer
Stackstudio Digital Ltd.
Paddington, West London (W2)
From £450 to £500 per day
Strong understanding and experience in SFMC API development.
Strong understanding and experience in SFMC API development.
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.
We are seeking a SDET (Software Development Engineer in Test) experienced in API automation , data validation , and AI-enabled systems . * Design and implement API automation frameworks using Python (PyTest, Requests, or Robot Framework) . * Proficiency in API testing frameworks such as PyTest , Requests , Robot Framework , or Behave .
We are seeking a SDET (Software Development Engineer in Test) experienced in API automation , data validation , and AI-enabled systems . * Design and implement API automation frameworks using Python (PyTest, Requests, or Robot Framework) . * Proficiency in API testing frameworks such as PyTest , Requests , Robot Framework , or Behave .
The ideal candidate will also have strong API integration skills and, preferably, experience with quoting and billing systems such as Zuora. * API Expertise: Design and implement integrations using REST and SOAP APIs. * Have a solid understanding of API integrations (REST/SOAP).
The ideal candidate will also have strong API integration skills and, preferably, experience with quoting and billing systems such as Zuora. * API Expertise: Design and implement integrations using REST and SOAP APIs. * Have a solid understanding of API integrations (REST/SOAP).
At BNY, our culture allows us to run our company better and enables employees growth and success. As a leading global financial services company at the heart of the global financial system, we influence nearly 20% of the worlds investible assets. Every day, our teams harness cutting-edge AI and breakthrough technologies to collaborate with clients, driving transformative solutions that redefine industries and uplift communities worldwide. Recognized as a top destination for innovators, BNY is where bold ideas meet advanced technology and exceptional talent. Together, we power the future of finance and this is what #LifeAtBNY is all about. Join us and be part of something extraordinary. The Markets business helps our clients formulate, implement and operationalize their investment strategies. It provides clients with financing, execution, liquidity and collateral solut
At BNY, our culture allows us to run our company better and enables employees growth and success. As a leading global financial services company at the heart of the global financial system, we influence nearly 20% of the worlds investible assets. Every day, our teams harness cutting-edge AI and breakthrough technologies to collaborate with clients, driving transformative solutions that redefine industries and uplift communities worldwide. Recognized as a top destination for innovators, BNY is where bold ideas meet advanced technology and exceptional talent. Together, we power the future of finance and this is what #LifeAtBNY is all about. Join us and be part of something extraordinary. The Markets business helps our clients formulate, implement and operationalize their investment strategies. It provides clients with financing, execution, liquidity and collateral solut
Intermediate external REST API script development
Intermediate external REST API script development
Utilising Serverless technology including API management, Serverless functions, Event driven architectures, Serverless databases and document stores - Familiarity with serverless technologies covering serverless functions, queues, file storage, API management and key value stores.
Utilising Serverless technology including API management, Serverless functions, Event driven architectures, Serverless databases and document stores - Familiarity with serverless technologies covering serverless functions, queues, file storage, API management and key value stores.
Define and document integration standards, including API strategies, event schemas, and interface contracts to enable decoupled, reusable services * Strong proficiency in API design (REST/GraphQL), microservices architecture, and middleware solution
Define and document integration standards, including API strategies, event schemas, and interface contracts to enable decoupled, reusable services * Strong proficiency in API design (REST/GraphQL), microservices architecture, and middleware solution
API integrations with external vendors and systems * Architect API integrations with external vendors and systems, ensuring robust governance and security * Hands-on experience with API design, integration, and governance (REST, SOAP, XML, JSON, API gateways, OAuth, etc.)
API integrations with external vendors and systems * Architect API integrations with external vendors and systems, ensuring robust governance and security * Hands-on experience with API design, integration, and governance (REST, SOAP, XML, JSON, API gateways, OAuth, etc.)
Recommend authentication and security methods (OAuth 2.0, JWT, API keys)
Recommend authentication and security methods (OAuth 2.0, JWT, API keys)
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Recommend authentication and security methods (OAuth 2.0, JWT, API keys)
Recommend authentication and security methods (OAuth 2.0, JWT, API keys)
You will have the opportunity to work on the most novel and creative use cases being built on our API, serving as a critical partner in collecting and delivering high-fidelity product and model feedback internally. Partner closely with strategic startup customers as their technical thought partner to build novel applications on our API, helping them rapidly move from ideation to scale. Built and/or delivered prototypes on top of our API platform. Can proactively identify opportunities for maximizing our customers business value through leveraging the OpenAI API.
You will have the opportunity to work on the most novel and creative use cases being built on our API, serving as a critical partner in collecting and delivering high-fidelity product and model feedback internally. Partner closely with strategic startup customers as their technical thought partner to build novel applications on our API, helping them rapidly move from ideation to scale. Built and/or delivered prototypes on top of our API platform. Can proactively identify opportunities for maximizing our customers business value through leveraging the OpenAI API.
Experience with ASP.NET MVC / Web API.
Experience with ASP.NET MVC / Web API.
Background in developing with C#, .NET, Web Services, Web Forms, MVC, JavaScript, jQuery, CSS, HTML, React, Web APIs and Visual Studio, API integrations
Background in developing with C#, .NET, Web Services, Web Forms, MVC, JavaScript, jQuery, CSS, HTML, React, Web APIs and Visual Studio, API integrations
The Solutions Architect organization has responsibility for pre- and post-sales client service and is the primary contact of end users of Channels Data Delivery Solutions products (Xpressfeed, API, Cloud Services).
The Solutions Architect organization has responsibility for pre- and post-sales client service and is the primary contact of end users of Channels Data Delivery Solutions products (Xpressfeed, API, Cloud Services).
API scheme design with Back-end engineers is expected.
API scheme design with Back-end engineers is expected.
Role Principal Consultant - Technology Data Architect, Oracle HCM Cloud, Oracle EBS - Location Leeds - Business Unit ORC - Compensation Competitive (including bonus) Job Description - Lead the design and execution of data strategy and large-scale HR data migrations to Oracle HCM Cloud and Microsoft Azure, ensuring security, performance, and compliance. Your role - As a Senior Data Architect, you will lead the definition of data strategy and design robust, scalable solutions to support large-scale migration initiatives to Oracle HCM Cloud and Microsoft Azure Fabric. You will architect and implement frameworks that ensure secure, high-performance data flows across complex ecosystems, leveraging modern cloud technologies to deliver efficient and compliant solutions. In this role, you will drive the end-to-end execution of data migration for high-volume HR datasetsincludi
Role Principal Consultant - Technology Data Architect, Oracle HCM Cloud, Oracle EBS - Location Leeds - Business Unit ORC - Compensation Competitive (including bonus) Job Description - Lead the design and execution of data strategy and large-scale HR data migrations to Oracle HCM Cloud and Microsoft Azure, ensuring security, performance, and compliance. Your role - As a Senior Data Architect, you will lead the definition of data strategy and design robust, scalable solutions to support large-scale migration initiatives to Oracle HCM Cloud and Microsoft Azure Fabric. You will architect and implement frameworks that ensure secure, high-performance data flows across complex ecosystems, leveraging modern cloud technologies to deliver efficient and compliant solutions. In this role, you will drive the end-to-end execution of data migration for high-volume HR datasetsincludi
You'll be joining the API Team, which specialises in delivering client-facing services and the platform which powers them. Were working at scale our service-oriented API Platform is handling billions of requests per month and growing quickly. You will primarily work with the team to architect, build, and maintain our API platform, ensuring the right people get access to the right music at the right time.
You'll be joining the API Team, which specialises in delivering client-facing services and the platform which powers them. Were working at scale our service-oriented API Platform is handling billions of requests per month and growing quickly. You will primarily work with the team to architect, build, and maintain our API platform, ensuring the right people get access to the right music at the right time.
Experience with cloud integration services such as Azure API Management, Service Bus, Event Grid, and Functions.
Experience with cloud integration services such as Azure API Management, Service Bus, Event Grid, and Functions.