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78 Contract API jobs in Kingston Upon Thames + 20 miles
We are seeking a skilled SAP Data Migration Specialist to join our team. This contract role sits inside IR35. Duration 6 months - Summary - The successful candidate will have experience in S4 Hana Greenfield data migration and multi LOBs such as Finance, Procurement, Manufacturing and Projects. This role requires meticulous attention to detail, a strong ability to work independently while supporting the team, and effective communications skills for collaboration with Business Users. Key Tasks * Develop and optimize SQL scripts for data extraction, transformation, loading (ETL). * Write robust, efficient, and scalable SQL code for data manipulation, reporting, and analytics across various platforms * Proficiency in writing complex SQL queries, stored procedures, and database triggers * Experienced S/4HANA Public cloud Data Migration consultant covering P2P, OTC, Financ
We are seeking a skilled SAP Data Migration Specialist to join our team. This contract role sits inside IR35. Duration 6 months - Summary - The successful candidate will have experience in S4 Hana Greenfield data migration and multi LOBs such as Finance, Procurement, Manufacturing and Projects. This role requires meticulous attention to detail, a strong ability to work independently while supporting the team, and effective communications skills for collaboration with Business Users. Key Tasks * Develop and optimize SQL scripts for data extraction, transformation, loading (ETL). * Write robust, efficient, and scalable SQL code for data manipulation, reporting, and analytics across various platforms * Proficiency in writing complex SQL queries, stored procedures, and database triggers * Experienced S/4HANA Public cloud Data Migration consultant covering P2P, OTC, Financ
MMC Corporate - We are looking for a talented and motivated individual to join our Cloud Platforms team at Marsh McLennan, based in Liverpool, United Kingdom. This is a hybrid role, requiring a minimum of three days per week in the office. * Operational Support for public cloud technology solutions, primarily focused on the AWS or Azure cloud platforms. * Obtain and maintain an in-depth understanding of AWS and Azure public cloud technologies to ensure all appropriate options are considered to support business initiatives. * Act as a consultant and subject matter expert for Project Managers, Developers, and Engineering teams, to resolve technical obstacles and improve the product's vision. * Work closely with multiple Project Management and Software Engineering teams on understanding ways to improve IaaS and PaaS service offerings.
MMC Corporate - We are looking for a talented and motivated individual to join our Cloud Platforms team at Marsh McLennan, based in Liverpool, United Kingdom. This is a hybrid role, requiring a minimum of three days per week in the office. * Operational Support for public cloud technology solutions, primarily focused on the AWS or Azure cloud platforms. * Obtain and maintain an in-depth understanding of AWS and Azure public cloud technologies to ensure all appropriate options are considered to support business initiatives. * Act as a consultant and subject matter expert for Project Managers, Developers, and Engineering teams, to resolve technical obstacles and improve the product's vision. * Work closely with multiple Project Management and Software Engineering teams on understanding ways to improve IaaS and PaaS service offerings.
Proficiency in API technologies, including RESTful APIs and platforms such as Apigee, with the ability to lead teams in designing robust and secure integration architectures.
Proficiency in API technologies, including RESTful APIs and platforms such as Apigee, with the ability to lead teams in designing robust and secure integration architectures.
449 exact matches jobs are outside your preferred location
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Senior API Technical Consultant (GraphQL Specialist)
Senior API Technical Consultant (GraphQL Specialist)
Staffworx Limited
London
market rates, outside IR35, 2 days on site
Lead the designand evolution of our API schemas, ensuring they meet the complex demands of a rapidly growing platform. * Expert levelGraphQL, including advanced API design, schema evolution, performance optimisation.
Lead the designand evolution of our API schemas, ensuring they meet the complex demands of a rapidly growing platform. * Expert levelGraphQL, including advanced API design, schema evolution, performance optimisation.
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Welcome to Hastings Direct - From our Group HR Director Pam Angel - We're a digital insurance provider with ambitious plans to become The Best and Biggest in the UK market. We've made huge investments in our data and tech capabilities over the past few years, along with nurturing our 4Cs culture. We're proud of the journey we're on as a company and know that our continued success will rely on the contribution of our talented colleagues. We provide insurance for over three million customers, but we know there's even bigger opportunity out there. The fact you're now reading this job advert means we've tempted you to find out more about #lifeatHD - we really hope you like what you see, and you'll join us to share in the success of the exciting chapter that lies ahead. We understand some people may not apply for jobs unless they feel they tick every box.
Welcome to Hastings Direct - From our Group HR Director Pam Angel - We're a digital insurance provider with ambitious plans to become The Best and Biggest in the UK market. We've made huge investments in our data and tech capabilities over the past few years, along with nurturing our 4Cs culture. We're proud of the journey we're on as a company and know that our continued success will rely on the contribution of our talented colleagues. We provide insurance for over three million customers, but we know there's even bigger opportunity out there. The fact you're now reading this job advert means we've tempted you to find out more about #lifeatHD - we really hope you like what you see, and you'll join us to share in the success of the exciting chapter that lies ahead. We understand some people may not apply for jobs unless they feel they tick every box.
FEATURED
Up to £515 per day (Inside IR35) Remote / must be UK based - 12 months - My client is an instantly recognisable consultancy who seek a Senior Integration Developer, with active SC clearance and experience in Microsoft Dynamics 365 Finance, to lead the design and implementation of robust, secure, and scalable integrations for an end client. * Hands-on experience as a Senior Integration Developer, with D365 Finance integrations. * Active Security Clearance (SC) * Deep knowledge of REST APIs, OData, DMF packages, and data mapping (XSLT, XML, JSON, CSV). * Proficiency in tools like Postman, Azure Logic Apps, PowerShell, and C#. * Experience with ETL processes, error handling, idempotency, and throttling. * Strong understanding of secure data handling, encryption, and compliance standards. * Familiarity with monitoring tools like Application Insights and Log Analytics.
Up to £515 per day (Inside IR35) Remote / must be UK based - 12 months - My client is an instantly recognisable consultancy who seek a Senior Integration Developer, with active SC clearance and experience in Microsoft Dynamics 365 Finance, to lead the design and implementation of robust, secure, and scalable integrations for an end client. * Hands-on experience as a Senior Integration Developer, with D365 Finance integrations. * Active Security Clearance (SC) * Deep knowledge of REST APIs, OData, DMF packages, and data mapping (XSLT, XML, JSON, CSV). * Proficiency in tools like Postman, Azure Logic Apps, PowerShell, and C#. * Experience with ETL processes, error handling, idempotency, and throttling. * Strong understanding of secure data handling, encryption, and compliance standards. * Familiarity with monitoring tools like Application Insights and Log Analytics.
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Up to £515 per day (Inside IR35) Remote / must be UK based - 3 months initially (open to extension) My client is an instantly recognisable consultancy who seek a - to lead the design and implementation of robust, secure, and scalable integrations for an end client. * Hands-on experience as a Senior Integration Developer, with D365 Finance integrations. * Deep knowledge of REST APIs, OData, DMF packages, and data mapping (XSLT, XML, JSON, CSV). * Proficiency in tools like Postman, Azure Logic Apps, PowerShell, and C#. * Experience with ETL processes, error handling, idempotency, and throttling. * Strong understanding of secure data handling, encryption, and compliance standards. * Familiarity with monitoring tools like Application Insights and Log Analytics. * Industry experience within financial services * Experience with Microsoft Power Platform (Power Automate, Powe
Up to £515 per day (Inside IR35) Remote / must be UK based - 3 months initially (open to extension) My client is an instantly recognisable consultancy who seek a - to lead the design and implementation of robust, secure, and scalable integrations for an end client. * Hands-on experience as a Senior Integration Developer, with D365 Finance integrations. * Deep knowledge of REST APIs, OData, DMF packages, and data mapping (XSLT, XML, JSON, CSV). * Proficiency in tools like Postman, Azure Logic Apps, PowerShell, and C#. * Experience with ETL processes, error handling, idempotency, and throttling. * Strong understanding of secure data handling, encryption, and compliance standards. * Familiarity with monitoring tools like Application Insights and Log Analytics. * Industry experience within financial services * Experience with Microsoft Power Platform (Power Automate, Powe
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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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Expertise in Cisco Meraki and Cisco SASE solutions are essential, and API DevNet skills are highly advantageous. * API DevNet skills are highly beneficial.
Expertise in Cisco Meraki and Cisco SASE solutions are essential, and API DevNet skills are highly advantageous. * API DevNet skills are highly beneficial.
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Azure Analytics & Integration stack (e.g., Databricks, Synapse, Logic Apps, API Management) o API frameworks (SOAP, REST, WebSocket)
Azure Analytics & Integration stack (e.g., Databricks, Synapse, Logic Apps, API Management) o API frameworks (SOAP, REST, WebSocket)
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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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Familiarity with enterprise integration patterns and API management.
Familiarity with enterprise integration patterns and API management.
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Senior .NET Integration Developer
Senior .NET Integration Developer
Oscar Associates (UK) Limited
SL6, Maidenhead
£50000 - £65000 per annum
Assist customers and partners in integration setup and API/gateway usage.
Assist customers and partners in integration setup and API/gateway usage.
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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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Strong knowledge of data modelling, API management, and cloud integration.
Strong knowledge of data modelling, API management, and cloud integration.
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Deep understanding of RESTful API design and integration
Deep understanding of RESTful API design and integration
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Deep understanding of RESTful API design and integration
Deep understanding of RESTful API design and integration
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Integration Developer - Salesforce Education Cloud-Student Systems Implementation
Integration Developer - Salesforce Education Cloud-Student Systems Implementation
InterQuest Group (UK) Limited
London
£400 - 500 per day
Excellent skills in designing and delivering integrations using Microsoft Azure PaaS (Functions, Logic Apps, API Management, Service Bus,) * Expertise in integration strategy, API management, and canonical data models.
Excellent skills in designing and delivering integrations using Microsoft Azure PaaS (Functions, Logic Apps, API Management, Service Bus,) * Expertise in integration strategy, API management, and canonical data models.
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.
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Strong knowledge of the API/integration lifecycle, including design, deployment, and enhancement. * Expertise in RESTful & SOAP API design, APIM policy, and transformations. * Skilled in API/Integration security protocols & best practices. * Practical experience with Postman, API monitoring, and documentation tools. * Knowledge of Open API Specification, WSDL, SOAP, XSLT. * Application Insight proficiency in .NET and .NET Core (Web, API) and working knowledge of VS Code with Azure.
Strong knowledge of the API/integration lifecycle, including design, deployment, and enhancement. * Expertise in RESTful & SOAP API design, APIM policy, and transformations. * Skilled in API/Integration security protocols & best practices. * Practical experience with Postman, API monitoring, and documentation tools. * Knowledge of Open API Specification, WSDL, SOAP, XSLT. * Application Insight proficiency in .NET and .NET Core (Web, API) and working knowledge of VS Code with Azure.
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Strong experience with RESTful API integrations * Familiarity with authentication protocols (OAuth2, API keys)
Strong experience with RESTful API integrations * Familiarity with authentication protocols (OAuth2, API keys)
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Salesforce Revenue Cloud Developer - Location: Remote - iO Associates is looking for a skilled Sales force Revenue Cloud Developer to join our client's growing team. In this role, you will play a key part in designing, building, and optimising Revenue Cloud solutions (CPQ & Billing) to support complex sales processes and streamline quote-to-cash operations. You will collaborate with architects, business stakeholders, and cross-functional teams to deliver scalable, high-quality Salesforce solutions. Key Responsibilities * Develop, customise, and enhance Salesforce Revenue Cloud (CPQ & Billing) features. * Design and implement end-to-end quote-to-cash solutions, including pricing, quoting, approvals, order management, and billing. * Build and maintain integrations between Revenue Cloud and other Salesforce clouds (Sales Cloud, Service Cloud) and third-party systems.
Salesforce Revenue Cloud Developer - Location: Remote - iO Associates is looking for a skilled Sales force Revenue Cloud Developer to join our client's growing team. In this role, you will play a key part in designing, building, and optimising Revenue Cloud solutions (CPQ & Billing) to support complex sales processes and streamline quote-to-cash operations. You will collaborate with architects, business stakeholders, and cross-functional teams to deliver scalable, high-quality Salesforce solutions. Key Responsibilities * Develop, customise, and enhance Salesforce Revenue Cloud (CPQ & Billing) features. * Design and implement end-to-end quote-to-cash solutions, including pricing, quoting, approvals, order management, and billing. * Build and maintain integrations between Revenue Cloud and other Salesforce clouds (Sales Cloud, Service Cloud) and third-party systems.
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Good understanding of API testing * Basic understanding of API automation using python
Good understanding of API testing * Basic understanding of API automation using python
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