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48 Contract API jobs in Oxfordshire + 20 miles
724 exact matches jobs are outside your preferred location
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D365 Senior Developer - D365 Finance, APIS, Azure
D365 Senior Developer - D365 Finance, APIS, Azure
Hays
London
£500.0 - £515.0 per day + up to £515 pd (InsideIR35)
Up to £515 per day (Inside IR35) Remote / must be UK based - 12 months - We're looking for an experienced D365 Finance & Operations Developer to lead the development of custom journal processing extensions. This role suits someone with strong X++ skills and a deep understanding of D365 Finance, especially in high-volume, cross-functional environments. * Experience in D365 F&O development (X++, data entities, extensions). * Experience with general ledger, journals, financial dimensions, and intercompany transactions. * Strong knowledge of Visual Studio, LCS, Azure DevOps, and CI/CD pipelines. * Proficient in Power BI: report creation, configuration, and export. * Skilled in workflows, security roles, SSRS, and unit testing (SysTest). * Familiar with DMF, OData, batch processing, and error handling. * Ability to optimize performance for high-volume transactions.
Up to £515 per day (Inside IR35) Remote / must be UK based - 12 months - We're looking for an experienced D365 Finance & Operations Developer to lead the development of custom journal processing extensions. This role suits someone with strong X++ skills and a deep understanding of D365 Finance, especially in high-volume, cross-functional environments. * Experience in D365 F&O development (X++, data entities, extensions). * Experience with general ledger, journals, financial dimensions, and intercompany transactions. * Strong knowledge of Visual Studio, LCS, Azure DevOps, and CI/CD pipelines. * Proficient in Power BI: report creation, configuration, and export. * Skilled in workflows, security roles, SSRS, and unit testing (SysTest). * Familiar with DMF, OData, batch processing, and error handling. * Ability to optimize performance for high-volume transactions.
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D365 Senior Developer - D365 Finance, APIS, Azure
D365 Senior Developer - D365 Finance, APIS, Azure
Hays
London
£500.0 - £515.0 per day + up to £515 pd (InsideIR35)
Up to £515 per day (Inside IR35) Remote / must be UK based - 12 months - We're looking for an experienced D365 Finance & Operations Developer to lead the development of custom journal processing extensions. This role suits someone with strong X++ skills and a deep understanding of D365 Finance, especially in high-volume, cross-functional environments. * 5+ years in D365 F&O development (X++, data entities, extensions). * Experience with general ledger, journals, financial dimensions, and intercompany transactions. * Strong knowledge of Visual Studio, LCS, Azure DevOps, and CI/CD pipelines. * Proficient in Power BI: report creation, configuration, and export. * Skilled in workflows, security roles, SSRS, and unit testing (SysTest). * Familiar with DMF, OData, batch processing, and error handling. * Ability to optimize performance for high-volume transactions.
Up to £515 per day (Inside IR35) Remote / must be UK based - 12 months - We're looking for an experienced D365 Finance & Operations Developer to lead the development of custom journal processing extensions. This role suits someone with strong X++ skills and a deep understanding of D365 Finance, especially in high-volume, cross-functional environments. * 5+ years in D365 F&O development (X++, data entities, extensions). * Experience with general ledger, journals, financial dimensions, and intercompany transactions. * Strong knowledge of Visual Studio, LCS, Azure DevOps, and CI/CD pipelines. * Proficient in Power BI: report creation, configuration, and export. * Skilled in workflows, security roles, SSRS, and unit testing (SysTest). * Familiar with DMF, OData, batch processing, and error handling. * Ability to optimize performance for high-volume transactions.
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AMS is a global workforce solutions partner committed to creating inclusive, dynamic, and future-ready workplaces. We help organisations adapt, grow, and thrive in an ever-evolving world by building, shaping, and optimising diverse talent strategies. Our Contingent Workforce Solutions (CWS) is one of our service offerings. Acting as an extension of their recruitment teams, we connect them with skilled interim and temporary professionals, fostering workplaces where everyone can contribute and succeed. Our client, a major UK retail bank, provides every day banking services to over 17 million retail customers. The banks expertise and services span across Business Services, Corporate banking, Wealth Management, Group Functions, Retail and Investment Banking. On behalf of this organisation, AMS are looking for 3 - Full Stack Developers for acontract until end of 2025 based
AMS is a global workforce solutions partner committed to creating inclusive, dynamic, and future-ready workplaces. We help organisations adapt, grow, and thrive in an ever-evolving world by building, shaping, and optimising diverse talent strategies. Our Contingent Workforce Solutions (CWS) is one of our service offerings. Acting as an extension of their recruitment teams, we connect them with skilled interim and temporary professionals, fostering workplaces where everyone can contribute and succeed. Our client, a major UK retail bank, provides every day banking services to over 17 million retail customers. The banks expertise and services span across Business Services, Corporate banking, Wealth Management, Group Functions, Retail and Investment Banking. On behalf of this organisation, AMS are looking for 3 - Full Stack Developers for acontract until end of 2025 based
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Integrate and manage APIs through Apigee API Management. * Familiarity with Apigee and API gateway configuration.
Integrate and manage APIs through Apigee API Management. * Familiarity with Apigee and API gateway configuration.
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Solid background in Apex, LWC, SOQL, and REST/SOAP API integration.
Solid background in Apex, LWC, SOQL, and REST/SOAP API integration.
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Exposure to Swift Vapor for server-side API development (desirable, not essential).
Exposure to Swift Vapor for server-side API development (desirable, not essential).
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Solid experience with Python and FastAPI for backend/API development.
Solid experience with Python and FastAPI for backend/API development.
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Champion best practices across testing disciplines including unit, integration, UI, API, and performance * Knowledge of web, mobile, API/microservices testing and contract testing (e.g. PACT)
Champion best practices across testing disciplines including unit, integration, UI, API, and performance * Knowledge of web, mobile, API/microservices testing and contract testing (e.g. PACT)
PREMIUM
Awareness of Dataverse API
Awareness of Dataverse API
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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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SAP Integration Developer/Specialist - Birmingham - Permanent
SAP Integration Developer/Specialist - Birmingham - Permanent
Crimson Ltd
Birmingham, West Midlands
Up to £75000 per annum
Skilled in working with IBM Integration Bus (IIB), including message transformation, routing, and API management.
Skilled in working with IBM Integration Bus (IIB), including message transformation, routing, and API management.
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Integration Developer-Azure-Salesforce-Student records
Integration Developer-Azure-Salesforce-Student records
InterQuest Group (UK) Limited
London
£450 per day
The role will focus on building and support integrations between new and existing systems using Microsoft Azure PaaS components to develop modular, reusable, and secure integration components aligned with canonical data models and modern API-first principles. * experience with Azure PaaS integration tools: Logic Apps, Functions, API Management, Service Bus, Event Grid * Experience building and managing REST APIs and implementing API-first integration designs * Exposure to OpenAPI/Swagger, API lifecycle management, and version control best practices.
The role will focus on building and support integrations between new and existing systems using Microsoft Azure PaaS components to develop modular, reusable, and secure integration components aligned with canonical data models and modern API-first principles. * experience with Azure PaaS integration tools: Logic Apps, Functions, API Management, Service Bus, Event Grid * Experience building and managing REST APIs and implementing API-first integration designs * Exposure to OpenAPI/Swagger, API lifecycle management, and version control best practices.
The candidate will hold specialization in designing web applications, middleware/API layer and AWS.
The candidate will hold specialization in designing web applications, middleware/API layer and AWS.
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• API Knowledge: Experience with APIs, web services, and data exchange formats.
• API Knowledge: Experience with APIs, web services, and data exchange formats.
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API Knowledge: Experience with APIs, web services, and data exchange formats.
API Knowledge: Experience with APIs, web services, and data exchange formats.
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About the company: Join a high-growth fintech startup in King's Cross as their Founding Engineer, working directly with the founders to build a Payments Platform API platform from the ground up. * Ambitious technologist who is passionate about building market leading Payments API Platforms
About the company: Join a high-growth fintech startup in King's Cross as their Founding Engineer, working directly with the founders to build a Payments Platform API platform from the ground up. * Ambitious technologist who is passionate about building market leading Payments API Platforms
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About the company: Join a high-growth fintech startup in King's Cross as their Founding Engineer, working directly with the founders to build a Payments Platform API platform from the ground up. * Ambitious technologist who is passionate about building market leading Payments API Platforms
About the company: Join a high-growth fintech startup in King's Cross as their Founding Engineer, working directly with the founders to build a Payments Platform API platform from the ground up. * Ambitious technologist who is passionate about building market leading Payments API Platforms
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Cybersecurity Engineer - Hybrid Remote
Cybersecurity Engineer - Hybrid Remote
VERTECH GROUP (UK) LTD
N7, North London
From £65,000 to £75,000 per annum + Benefits
Strong knowledge of web/mobile security (OWASP Top 10, API security), cloud security (AWS), and CI/CD pipeline hardening
Strong knowledge of web/mobile security (OWASP Top 10, API security), cloud security (AWS), and CI/CD pipeline hardening
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Work with TypeScript, Node.js, React.js, and AWS services (Lambda, API Gateway). Hands-on experience with AWS services (e.g., Lambda, API Gateway). Strong background in API design and integration.
Work with TypeScript, Node.js, React.js, and AWS services (Lambda, API Gateway). Hands-on experience with AWS services (e.g., Lambda, API Gateway). Strong background in API design and integration.
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Strong knowledge of GraphQL (API design, schema evolution, integration).
Strong knowledge of GraphQL (API design, schema evolution, integration).
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Experience with API integrations and version control (GitHub/Bitbucket)
Experience with API integrations and version control (GitHub/Bitbucket)
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Front-End Developer, React.js, Hybrid, COR7367
Front-End Developer, React.js, Hybrid, COR7367
Corriculo Ltd
CV31, Leamington Spa
£65k - 80k per year + Benefits
Working closely with back-end teams, you’ll ensure seamless API integrations while optimising applications for performance, accessibility, and user experience. * Familiarity with TypeScript and RESTful API integration
Working closely with back-end teams, you’ll ensure seamless API integrations while optimising applications for performance, accessibility, and user experience. * Familiarity with TypeScript and RESTful API integration
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Manage API integrations between platforms. * Strong capability with API integrations and low/no-code tools (n8n, Zapier, Airtable, Make).
Manage API integrations between platforms. * Strong capability with API integrations and low/no-code tools (n8n, Zapier, Airtable, Make).
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Senior Software Engineer
Senior Software Engineer
Halian Technology Limited
W1, Central London
From £90,000 to £95,000 per annum Plus bonus and benefits
Cloud experience withAWSservices (Lambda, API Gateway, S3, etc.)
Cloud experience withAWSservices (Lambda, API Gateway, S3, etc.)
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