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14 Contract API jobs in Huddersfield + 20 miles
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As the Lead Developer, you will be working across the full stack, with a primary focus on React-based front-end applications, while also contributing to back-end architecture and API integration.
As the Lead Developer, you will be working across the full stack, with a primary focus on React-based front-end applications, while also contributing to back-end architecture and API integration.
Leading the end-to-end migration of the clientsweb application, API, and databasefrom Azure to AWS.
Leading the end-to-end migration of the clientsweb application, API, and databasefrom Azure to AWS.
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Join our Cloud Native Engineering Lab as a Senior Cloud Platform Engineer (GCP) and help us design, build, and operate secure, automated cloud platforms that empower product teams to deliver API-first services at pace and with confidence. * API-First Enablement: Enable API-first delivery with reusable patterns and golden paths for API producers and consumers. * Strong API design and security skills (REST/OpenAPI, authN/Z, mTLS, certificate lifecycle). o Apigee for API Management * Desirable: Harness, HashiCorp Vault, Dynatrace, Docker/buildah, NodeJS for API tooling, relevant GCP certifications. * Harness, HashiCorp Vault, Dynatrace, Docker/buildah, NodeJS for API tooling, Google Professional Cloud Architect or GCP DevOps certificatio
Join our Cloud Native Engineering Lab as a Senior Cloud Platform Engineer (GCP) and help us design, build, and operate secure, automated cloud platforms that empower product teams to deliver API-first services at pace and with confidence. * API-First Enablement: Enable API-first delivery with reusable patterns and golden paths for API producers and consumers. * Strong API design and security skills (REST/OpenAPI, authN/Z, mTLS, certificate lifecycle). o Apigee for API Management * Desirable: Harness, HashiCorp Vault, Dynatrace, Docker/buildah, NodeJS for API tooling, relevant GCP certifications. * Harness, HashiCorp Vault, Dynatrace, Docker/buildah, NodeJS for API tooling, Google Professional Cloud Architect or GCP DevOps certificatio
Location:UK Remote - Leeds or London HQ - Contract Type:Inside IR35 - Duration:3 Months - Day Rate:£475pd - About the Role - We are seeking an experiencedSalesforce Developerto join our consultancy team on an inside IR35 contract. You will be responsible for designing, developing, and delivering high-quality Salesforce solutions that meet business requirements and adhere to best practice. Key Responsibilities * Design and develop custom Salesforce solutions usingApex,Lightning Web Components (LWC),Aura, andVisualforce. * Configure Salesforce features includingworkflows,validation rules,flows,reports, anddashboards. * Build and maintain integrations usingREST/SOAP APIs,Platform Events, and middleware tools. * Implement data models, custom objects, fields, and security configurations. * Write unit tests ensuring high code coverage and compliance with Salesforce best pra
Location:UK Remote - Leeds or London HQ - Contract Type:Inside IR35 - Duration:3 Months - Day Rate:£475pd - About the Role - We are seeking an experiencedSalesforce Developerto join our consultancy team on an inside IR35 contract. You will be responsible for designing, developing, and delivering high-quality Salesforce solutions that meet business requirements and adhere to best practice. Key Responsibilities * Design and develop custom Salesforce solutions usingApex,Lightning Web Components (LWC),Aura, andVisualforce. * Configure Salesforce features includingworkflows,validation rules,flows,reports, anddashboards. * Build and maintain integrations usingREST/SOAP APIs,Platform Events, and middleware tools. * Implement data models, custom objects, fields, and security configurations. * Write unit tests ensuring high code coverage and compliance with Salesforce best pra
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Contract Software Developer - AWS, React & Next.js
Contract Software Developer - AWS, React & Next.js
WRK DIGITAL LTD
Leeds (LS1)
From £400 to £450 per day OUTSIDE of IR35
The tech stack for this full stack project is React, Next.js, TailwindCSS for the front end, Firebase cloud functions, Next.js API routes for the backend and Cloud Firestore for the database.
The tech stack for this full stack project is React, Next.js, TailwindCSS for the front end, Firebase cloud functions, Next.js API routes for the backend and Cloud Firestore for the database.
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Your primary focus will be on contributing to building robust, scalable APIs using Symfony API Platform and crafting highly performant, modern user interfaces with Next.js and React. * Backend Development : Design and implement new API endpoints and business logic using Symfony (PHP) & API Platform ensuring high performance and security - You should be comfortable building complex UIs and leveraging Next.js features like routing and API routes.
Your primary focus will be on contributing to building robust, scalable APIs using Symfony API Platform and crafting highly performant, modern user interfaces with Next.js and React. * Backend Development : Design and implement new API endpoints and business logic using Symfony (PHP) & API Platform ensuring high performance and security - You should be comfortable building complex UIs and leveraging Next.js features like routing and API routes.
API Development * Proficient in API authentication (JWT, OAuth). * Familiarity with API Platform (a plus).
API Development * Proficient in API authentication (JWT, OAuth). * Familiarity with API Platform (a plus).
Understanding of RESTful APIs, API management platforms, and web server architectures.
Understanding of RESTful APIs, API management platforms, and web server architectures.
As we mature our platform, you'll help formalize our governance, CI/CD pipelines and API-driven integrations (including webhooks, custom connectors and RESTful services). * Power Automate flows (scheduled, instant and event-driven) with HTTP/Webhook triggers, custom connectors and API consumption * Provide L2/L3 support for production applications, reports and automations; troubleshoot C# plugins or API errors. * Experience building custom connectors, Azure Functions, webhooks and REST API integrations.
As we mature our platform, you'll help formalize our governance, CI/CD pipelines and API-driven integrations (including webhooks, custom connectors and RESTful services). * Power Automate flows (scheduled, instant and event-driven) with HTTP/Webhook triggers, custom connectors and API consumption * Provide L2/L3 support for production applications, reports and automations; troubleshoot C# plugins or API errors. * Experience building custom connectors, Azure Functions, webhooks and REST API integrations.
Support developers and third parties with API documentation, test cases, and deployment coordination. * Strong grasp of API-based system integrations and data handling principles.
Support developers and third parties with API documentation, test cases, and deployment coordination. * Strong grasp of API-based system integrations and data handling principles.
Experience with API management and microservices architecture * Microsoft Graph API development
Experience with API management and microservices architecture * Microsoft Graph API development
Description - Were looking for an experienced and proactive Senior Delivery & Product Manager to lead the successful delivery of digital products, AI and IoT technology and complex web apps across our client portfolio. Alongside driving delivery, youll take a strong product ownership role shaping vision and outcomes, clarifying user needs, translating ambiguity into actionable roadmaps, and ensuring the work we deliver genuinely solves the right problems. Youll partner with clients to define product strategy, challenge assumptions, prioritise effectively, and guide teams toward building high-value, user-centred solutions. Youll still own the day-to-day rhythm of delivery: shaping scope, enabling cross-functional teams (Engineering, Design, UX, QA, Data, AI), managing client relationships, and ensuring we execute reliably against outcomes, budgets, and timelines.
Description - Were looking for an experienced and proactive Senior Delivery & Product Manager to lead the successful delivery of digital products, AI and IoT technology and complex web apps across our client portfolio. Alongside driving delivery, youll take a strong product ownership role shaping vision and outcomes, clarifying user needs, translating ambiguity into actionable roadmaps, and ensuring the work we deliver genuinely solves the right problems. Youll partner with clients to define product strategy, challenge assumptions, prioritise effectively, and guide teams toward building high-value, user-centred solutions. Youll still own the day-to-day rhythm of delivery: shaping scope, enabling cross-functional teams (Engineering, Design, UX, QA, Data, AI), managing client relationships, and ensuring we execute reliably against outcomes, budgets, and timelines.
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About The Role - FDM is a global business and technology consultancy seeking a Front-End Developer to work for our client within the healthcare sector. This is initially a 6-month contract with the potential to extend up to 2 years and will be a hybrid role based in London or Leeds. Our client is seeking an experienced Front-End Developer who is skilled in modern JavaScript frameworks. The ideal candidate will be willing to travel to the Leeds office twice a month. Responsibilities * Develop accessible, responsive, as well as performant user interfaces using NextJs and React to meet complex healthcare service needs * Write clean, semantic HTML, CSS, and JavaScript code that strictly adheres to W3C standards and GDS (Government Design System) principles * Collaborate closely with backend engineers to integrate frontend components with Python-based services and APIs
About The Role - FDM is a global business and technology consultancy seeking a Front-End Developer to work for our client within the healthcare sector. This is initially a 6-month contract with the potential to extend up to 2 years and will be a hybrid role based in London or Leeds. Our client is seeking an experienced Front-End Developer who is skilled in modern JavaScript frameworks. The ideal candidate will be willing to travel to the Leeds office twice a month. Responsibilities * Develop accessible, responsive, as well as performant user interfaces using NextJs and React to meet complex healthcare service needs * Write clean, semantic HTML, CSS, and JavaScript code that strictly adheres to W3C standards and GDS (Government Design System) principles * Collaborate closely with backend engineers to integrate frontend components with Python-based services and APIs
About The Role - FDM is a global business and technology consultancy seeking Dynamic 365 Developers to work for our client within the public service sector. This is initially a 6-month contract with the potential to extend and will be a remote role with the occasional travel to Solihull. Our client is seeking a passionate Dynamics 365 Developer. The ideal candidate will have proven commercial experience and knowledge in Dynamics 365 Customer Services ideally also in Marketing & Sales, as well as MS Power Pages, Azure Logic Apps, and C#. You will also possess a solid understanding and experience with APIs and Integrations. You will play a crucial role in designing, developing, and implementing solutions using Microsoft Dynamics 365, working closely with stakeholders to understand business requirements and translate them into technical solutions to enhance business proc
About The Role - FDM is a global business and technology consultancy seeking Dynamic 365 Developers to work for our client within the public service sector. This is initially a 6-month contract with the potential to extend and will be a remote role with the occasional travel to Solihull. Our client is seeking a passionate Dynamics 365 Developer. The ideal candidate will have proven commercial experience and knowledge in Dynamics 365 Customer Services ideally also in Marketing & Sales, as well as MS Power Pages, Azure Logic Apps, and C#. You will also possess a solid understanding and experience with APIs and Integrations. You will play a crucial role in designing, developing, and implementing solutions using Microsoft Dynamics 365, working closely with stakeholders to understand business requirements and translate them into technical solutions to enhance business proc
105 exact matches jobs are outside your preferred location
Minimum of 8 years' applied experience as an API engineer * Strong experience in API designing and creating architectural artefacts such as gap analysis, low level designs, data models etc.
Minimum of 8 years' applied experience as an API engineer * Strong experience in API designing and creating architectural artefacts such as gap analysis, low level designs, data models etc.
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Familiarity with databases, API design, and cross-platform development.
Familiarity with databases, API design, and cross-platform development.
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Lead Automation Test Engineer
Lead Automation Test Engineer
Vallum Associates Limited
Sheffield (S1)
From £450 to £500 per day Inside IR35
Experience of using automation tools such as Selenium web driver IO (WDIO) / Cucumber etc, Selenium for UI testing and RestAssured for API testing
Experience of using automation tools such as Selenium web driver IO (WDIO) / Cucumber etc, Selenium for UI testing and RestAssured for API testing
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Lead JavaScript Developer
Lead JavaScript Developer
Bright Purple Resourcing
Manchester, Greater Manchester, M60
£450 p/d - Outside IR35.
Real-world API experience: authentication, REST, RPC, GraphQL, tRPC
Real-world API experience: authentication, REST, RPC, GraphQL, tRPC
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Proven experience building and maintaining API integrations and data pipelines (REST, JSON, XML, JDBC)
Proven experience building and maintaining API integrations and data pipelines (REST, JSON, XML, JDBC)
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Senior Backend Developer
Senior Backend Developer
DCV Technologies Limited
Manchester (M1)
From £400 to £470 per day 6 month contract plus extension
This is a hands-on backend role focused on Java/Kotlin microservices, secure API design, and cloud delivery. * Secure API design, OAuth, authentication/authorisation
This is a hands-on backend role focused on Java/Kotlin microservices, secure API design, and cloud delivery. * Secure API design, OAuth, authentication/authorisation
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Use automation tools such as Selenium WebDriver IO (WDIO), Cucumber, Selenium (UI), and RestAssured (API). * Exposure to SailPoint IdentityIQ, identity warehousing, and ingestion formats: SCIM, REST API, LDAP, OIDC, CSV. * API testing, API Gateway testing, and Batch/ETL testing.
Use automation tools such as Selenium WebDriver IO (WDIO), Cucumber, Selenium (UI), and RestAssured (API). * Exposure to SailPoint IdentityIQ, identity warehousing, and ingestion formats: SCIM, REST API, LDAP, OIDC, CSV. * API testing, API Gateway testing, and Batch/ETL testing.
Develop, execute, and maintain automated test frameworks and scripts for web, API, database, and cloud-based applications. * Hands-on experience with automation tools such as Selenium WebDriver IO (WDIO), Cucumber, Selenium UI, and RestAssured for API testing. * API Testing, API Gateway testing, Batch/ETL testing. * Experience with SailPoint IdentityIQ, identity warehousing, SCIM, REST API, LDAP, OIDC, CSV ingestion.
Develop, execute, and maintain automated test frameworks and scripts for web, API, database, and cloud-based applications. * Hands-on experience with automation tools such as Selenium WebDriver IO (WDIO), Cucumber, Selenium UI, and RestAssured for API testing. * API Testing, API Gateway testing, Batch/ETL testing. * Experience with SailPoint IdentityIQ, identity warehousing, SCIM, REST API, LDAP, OIDC, CSV ingestion.
Strong theoretical and practical knowledge of API and database testing. * Exposure to AD/ADLDS, API Gateway testing, Batch/ETL testing. * Experience with SailPoint IdentityIQ, Identity Warehousing, SCIM, REST API, LDAP, OIDC, CSV ingestion.
Strong theoretical and practical knowledge of API and database testing. * Exposure to AD/ADLDS, API Gateway testing, Batch/ETL testing. * Experience with SailPoint IdentityIQ, Identity Warehousing, SCIM, REST API, LDAP, OIDC, CSV ingestion.
Minimum of 15 years applied experience as an API engineer * Strong experience in API designing and creating architectural artefacts such as gap analysis, low level designs, data models etc.
Minimum of 15 years applied experience as an API engineer * Strong experience in API designing and creating architectural artefacts such as gap analysis, low level designs, data models etc.
The ideal candidate should not only have technical proficiency in data structures, automation technologies, API interactions, and cloud services, but also exhibit a strong drive to research, investigate, and collaborate effectively within the organization. Experience with API development and integrations with platforms such as Kong API Gateway (ideal), Apigee, AWS API GW, Azure API GW, etc API Integration and Management: Expertise in querying, integrating, and managing APIs. Capable of constructing and executing API calls for data retrieval, updates, and inter-service communication.
The ideal candidate should not only have technical proficiency in data structures, automation technologies, API interactions, and cloud services, but also exhibit a strong drive to research, investigate, and collaborate effectively within the organization. Experience with API development and integrations with platforms such as Kong API Gateway (ideal), Apigee, AWS API GW, Azure API GW, etc API Integration and Management: Expertise in querying, integrating, and managing APIs. Capable of constructing and executing API calls for data retrieval, updates, and inter-service communication.