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2 Contract API jobs in Wellingborough + 20 miles
Do you want to work for a pioneering SaaS company that is redefining the industry landscape - At Basware, we deliver mission-critical cloud solutions that empower organizations to unlock their full potential. Our products are designed to bring clear and compelling value to our customers, and were looking for a talented and forward-thinking developer who can help us shape the future of our technology. About the Role - We are seeking a Senior Cloud Developer to join our dynamic team, where youll play a key role in building and evolving our invoice matching and document processing capabilities. This is a full-stack role with a strong backend focus, ideal for someone who thrives in a modern C#/.NET and PHP/Laravel environment and enjoys working across the stackfrom designing scalable APIs and real-time services to crafting responsive, user-friendly interfaces.
Do you want to work for a pioneering SaaS company that is redefining the industry landscape - At Basware, we deliver mission-critical cloud solutions that empower organizations to unlock their full potential. Our products are designed to bring clear and compelling value to our customers, and were looking for a talented and forward-thinking developer who can help us shape the future of our technology. About the Role - We are seeking a Senior Cloud Developer to join our dynamic team, where youll play a key role in building and evolving our invoice matching and document processing capabilities. This is a full-stack role with a strong backend focus, ideal for someone who thrives in a modern C#/.NET and PHP/Laravel environment and enjoys working across the stackfrom designing scalable APIs and real-time services to crafting responsive, user-friendly interfaces.
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2+ years of in a few of the areas: serverless architecture, event-driven architecture, microservices, API-driven cloud-based products including performance management.
2+ years of in a few of the areas: serverless architecture, event-driven architecture, microservices, API-driven cloud-based products including performance management.
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57 exact matches jobs are outside your preferred location
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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Integrate and manage APIs using Apigee API Management. * Experience with API gateway configuration.
Integrate and manage APIs using Apigee API Management. * Experience with API gateway configuration.
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You will design, build, and manage API-based integrations across Google Cloud Platform, ensuring secure, scalable, and high-performing solutions. * Develop and manage RESTful API integrations using signed URLs, API Keys, and OAuth2. * Proven experience in API integration patterns and tools. * Strong knowledge of OAuth2, API Keys, and signed URL authentication methods.
You will design, build, and manage API-based integrations across Google Cloud Platform, ensuring secure, scalable, and high-performing solutions. * Develop and manage RESTful API integrations using signed URLs, API Keys, and OAuth2. * Proven experience in API integration patterns and tools. * Strong knowledge of OAuth2, API Keys, and signed URL authentication methods.
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We're looking for a Senior AWS Platform Engineer to play a hands-on role in a major API infrastructure migration project. * Kong API Gateway (hybrid model) * Strong understanding of API gateways (Kong)
We're looking for a Senior AWS Platform Engineer to play a hands-on role in a major API infrastructure migration project. * Kong API Gateway (hybrid model) * Strong understanding of API gateways (Kong)
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Software Developer - Active SC, Python, AWS
Software Developer - Active SC, Python, AWS
Hays
London
£400.0 - £425.0 per day + up to £425 per day (InsideIR35)
Proven experience as a software developer with data integration experience (API)
Proven experience as a software developer with data integration experience (API)
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Strong application security knowledge (OWASP Top 10, API security). Hands-on experience in end-to-end pentests (internal, external, cloud, AD, web app, API).
Strong application security knowledge (OWASP Top 10, API security). Hands-on experience in end-to-end pentests (internal, external, cloud, AD, web app, API).
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D365 Power BI / Data Architect (Fabric)
D365 Power BI / Data Architect (Fabric)
Stott & May Professional Search Limited
LU1, Luton
Up to £0.00 per annum
Deep understanding of D365 CE data architecture (Dataverse, Common Data Model, API integrations).
Deep understanding of D365 CE data architecture (Dataverse, Common Data Model, API integrations).
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Knowledge of event management frameworks and API integrations.
Knowledge of event management frameworks and API integrations.
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Perform penetration testing and security reviews on CI/CD pipelines, cloud, containers, and web/API applications. Strong application security knowledge (OWASP Top 10, API security).
Perform penetration testing and security reviews on CI/CD pipelines, cloud, containers, and web/API applications. Strong application security knowledge (OWASP Top 10, API security).
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Strong application security knowledge (OWASP Top 10, API security).
Strong application security knowledge (OWASP Top 10, API security).
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Strong application security knowledge (OWASP Top 10, API security).
Strong application security knowledge (OWASP Top 10, API security).
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D365 Finance Senior Integration Developer (remote)
D365 Finance Senior Integration Developer (remote)
Hays
London
£500.0 - £550.0 per day + c£510 per day (inside IR35)
We are currently seeking a D365 Senior Integration Developer (finance) to design and implement integrations using D365 API's (e.g. Data Management Package, REST API, OData) You will develop automation processes for data transformation, upload, import and error handling in batch or near real-time modes. Proficiency in tools like Postman, Azure Logic Apps, and scripting (e.g., C#, PowerShell) for API orchestration, along with ETL processes.
We are currently seeking a D365 Senior Integration Developer (finance) to design and implement integrations using D365 API's (e.g. Data Management Package, REST API, OData) You will develop automation processes for data transformation, upload, import and error handling in batch or near real-time modes. Proficiency in tools like Postman, Azure Logic Apps, and scripting (e.g., C#, PowerShell) for API orchestration, along with ETL processes.
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Your new company - Working for an Investment Management Organisation. Your new role - Working for an Investment Management firm who are seeking a highly skilled hands on Solutions Architect with strong experience in low code/ no code tool Appian or Pega. You will lead the design, development and implementation of applications low code platform (Unqork). You will be supported by a developer but will also be hands on developing with them. What you'll need to succeed * Great background as a Solution/ Technical Architect in financial services (investment/ asset management would be a big plus). * Strong architectural knowledge on configuration/ development of low code/ no code tools. * Good experience with Appian/ Pega. * Experience in leading/ coordinating test plans. * Strong hands on experience - can think holistically and strategically to drive implementation.
Your new company - Working for an Investment Management Organisation. Your new role - Working for an Investment Management firm who are seeking a highly skilled hands on Solutions Architect with strong experience in low code/ no code tool Appian or Pega. You will lead the design, development and implementation of applications low code platform (Unqork). You will be supported by a developer but will also be hands on developing with them. What you'll need to succeed * Great background as a Solution/ Technical Architect in financial services (investment/ asset management would be a big plus). * Strong architectural knowledge on configuration/ development of low code/ no code tools. * Good experience with Appian/ Pega. * Experience in leading/ coordinating test plans. * Strong hands on experience - can think holistically and strategically to drive implementation.
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My client is a high-profile consultancy who require an Endur Solution Architect, with experience in Endur and in Energy Trading and Risk Management (ETRM) systems, to work closely with an end customer. * Proven expertise as a Subject Matter Expert (SME) in Energy Trading and Risk Management (ETRM) systems, with deep specialization in Endur. * Ability to deliver strategic guidance and solutions for complex trading and risk management scenarios. * Strong capability to optimize Endur functionalities across front-office, middle-office, and back-office operations. * Demonstrated technical leadership in Endur-related projects, ensuring alignment with business goals and industry standards. * Solid understanding of system integration principles, including APIs, middleware, and data interfaces for seamless enterprise connectivity.
My client is a high-profile consultancy who require an Endur Solution Architect, with experience in Endur and in Energy Trading and Risk Management (ETRM) systems, to work closely with an end customer. * Proven expertise as a Subject Matter Expert (SME) in Energy Trading and Risk Management (ETRM) systems, with deep specialization in Endur. * Ability to deliver strategic guidance and solutions for complex trading and risk management scenarios. * Strong capability to optimize Endur functionalities across front-office, middle-office, and back-office operations. * Demonstrated technical leadership in Endur-related projects, ensuring alignment with business goals and industry standards. * Solid understanding of system integration principles, including APIs, middleware, and data interfaces for seamless enterprise connectivity.
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Role/Job title - Work Location - Warwick, UK - Role type - Permanent/Fixed Term/ Contracting - Contracting - Mode of working Hybrid /office based - Hybrid - If Hybrid, how many days are required in office? 3 days - Number of positions - 1 - Duration of assignment - 6 months and rolling - Any other working conditions - travel/on call/shifts - To be published on job boards from below onwards - The Solution Architect will be responsible for creating a business case to identify and select the most appropriate options for a Software as a Service (SaaS) application, whether available in the market or developed in-house. This role involves gathering and analysing requirements, designing architectural solutions, evaluating proposals through Request for Proposals (RFP), ensuring Non-Functional Requirements (NFR) are met, addressing security and IT controls, creating architectu
Role/Job title - Work Location - Warwick, UK - Role type - Permanent/Fixed Term/ Contracting - Contracting - Mode of working Hybrid /office based - Hybrid - If Hybrid, how many days are required in office? 3 days - Number of positions - 1 - Duration of assignment - 6 months and rolling - Any other working conditions - travel/on call/shifts - To be published on job boards from below onwards - The Solution Architect will be responsible for creating a business case to identify and select the most appropriate options for a Software as a Service (SaaS) application, whether available in the market or developed in-house. This role involves gathering and analysing requirements, designing architectural solutions, evaluating proposals through Request for Proposals (RFP), ensuring Non-Functional Requirements (NFR) are met, addressing security and IT controls, creating architectu
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API Integration Experience:Proven track record of consuming and building APIs for data exchange * Strong understanding of API development and integration (REST, GraphQL)
API Integration Experience:Proven track record of consuming and building APIs for data exchange * Strong understanding of API development and integration (REST, GraphQL)
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Day rate: £500 - £700 (inside IR35) Duration: 12 months - Hybrid: 3 days per week - Start: ASAP - My exciting new client is looking for a Full Stack Engineer with AI/ML and Python experience. Hybrid working 3 days per week in the London office. * 10+ years designing and developing operational support systems and automation solutions in Python, 5+ years leading reviews and ensuring quality in others' work. * Hands-on experience with Selenium, and iOS functional automation. * Experience with testing activities across the entire lifecycle of the project from inception to delivery. * Design and implement user interfaces using JavaScript, and frameworks such as React. * Develop and maintain server-side logic using Python. * Manage APIs and integrate third-party services and tools. * Ensure application data integrity and security by designing and managing databases in Postg
Day rate: £500 - £700 (inside IR35) Duration: 12 months - Hybrid: 3 days per week - Start: ASAP - My exciting new client is looking for a Full Stack Engineer with AI/ML and Python experience. Hybrid working 3 days per week in the London office. * 10+ years designing and developing operational support systems and automation solutions in Python, 5+ years leading reviews and ensuring quality in others' work. * Hands-on experience with Selenium, and iOS functional automation. * Experience with testing activities across the entire lifecycle of the project from inception to delivery. * Design and implement user interfaces using JavaScript, and frameworks such as React. * Develop and maintain server-side logic using Python. * Manage APIs and integrate third-party services and tools. * Ensure application data integrity and security by designing and managing databases in Postg
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Job Title: Primavera Technical Consultant * Mode: Hybrid * Onsite Requirement: 3 days per week * Location: Coventry, UK * 3+ implementation project experience * Experience in UK water and energy industries will be an added advantage * Design, develop, and support integrations between Primavera (Unifier, OPC) and enterprise systems (ERP, EDMS, MS Project, P6, etc.) * Develop and maintain REST/SOAP-based APIs, web services, and middleware components for seamless data exchange * Provide regular status reporting to the program manager * Prepare discovery documentation, take notes, process map, and get validation from customer stakeholders * Document Primavera technical requirements, design, and deliverables * 3+ end-to-end implementation project experience in integrated Oracle Unifier and Primavera Cloud
Job Title: Primavera Technical Consultant * Mode: Hybrid * Onsite Requirement: 3 days per week * Location: Coventry, UK * 3+ implementation project experience * Experience in UK water and energy industries will be an added advantage * Design, develop, and support integrations between Primavera (Unifier, OPC) and enterprise systems (ERP, EDMS, MS Project, P6, etc.) * Develop and maintain REST/SOAP-based APIs, web services, and middleware components for seamless data exchange * Provide regular status reporting to the program manager * Prepare discovery documentation, take notes, process map, and get validation from customer stakeholders * Document Primavera technical requirements, design, and deliverables * 3+ end-to-end implementation project experience in integrated Oracle Unifier and Primavera Cloud
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New Senior Data Engineer Contract Roles We have multiple new Senior Data Engineer Contract roles for a London based financial services client of ours. This would be working on a greenfield project in a new team building out a digital platform. This is outside IR35, 1-2 days per week onsite in London and initial 6 month contract and an immediate start. The ideal candidate will be a data engineer from a software engineering background with machine learning experience. The rate available for this position is: £550-575pd * ETL / Data Pipelines / Data Integration * Python & Java (for building data pipelines & APIs) * Snowflake * AWS * Machine Learning * React or Angular Please apply directly or email me your CV on
New Senior Data Engineer Contract Roles We have multiple new Senior Data Engineer Contract roles for a London based financial services client of ours. This would be working on a greenfield project in a new team building out a digital platform. This is outside IR35, 1-2 days per week onsite in London and initial 6 month contract and an immediate start. The ideal candidate will be a data engineer from a software engineering background with machine learning experience. The rate available for this position is: £550-575pd * ETL / Data Pipelines / Data Integration * Python & Java (for building data pipelines & APIs) * Snowflake * AWS * Machine Learning * React or Angular Please apply directly or email me your CV on
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C# Engineer (Blazor Experience)
C# Engineer (Blazor Experience)
Hays
MK1, Milton Keynes
£350.0 - £400.0 per day + £350 - 400 per day Outside IR35
Role OverviewOur client based in Milton Keynes is looking for a passionate and skilled C# Engineer with proven experience in Blazor to join their growing development team. This is a fantastic opportunity to work on high-performance web applications in a collaborative and innovative environment. You'll be working closely with a talented team of developers, designers, and product managers to deliver cutting-edge solutions that drive real value. Responsibilities * Build and maintain interactive, scalable web applications using Blazor and .NET technologies. * Collaborate with cross-functional teams to define, design, and implement new features. * Ensure code quality through code reviews, unit testing, and adherence to best practices. * Troubleshoot and resolve issues across the full stack. * Contribute to technical discussions and share knowledge with the wider team.
Role OverviewOur client based in Milton Keynes is looking for a passionate and skilled C# Engineer with proven experience in Blazor to join their growing development team. This is a fantastic opportunity to work on high-performance web applications in a collaborative and innovative environment. You'll be working closely with a talented team of developers, designers, and product managers to deliver cutting-edge solutions that drive real value. Responsibilities * Build and maintain interactive, scalable web applications using Blazor and .NET technologies. * Collaborate with cross-functional teams to define, design, and implement new features. * Ensure code quality through code reviews, unit testing, and adherence to best practices. * Troubleshoot and resolve issues across the full stack. * Contribute to technical discussions and share knowledge with the wider team.
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Job Title: Firewall Engineer - Location: London or Gloucester (Hybrid) Contract Type: 6 months, Inside IR35 - Day Rate:£360 - The Role - Were looking for a skilled Firewall Engineer with active UK SC Clearance to join on a 6-month contract. Youll be responsible for firewall rule optimisation, configuration, and transformation activities across complex IT and OT environments. This role requires strong experience across multiple vendors (Palo Alto, Fortinet, Cisco ASA, Check Point) and the ability to collaborate with technical and non-technical stakeholders to maintain compliance and security best practice. Key Responsibilities * Configure, implement, and manage firewall solutions across multi-vendor environments * Review, optimise, and enforce firewall rules and policies * Support migrations and replacement projects for firewall infrastructure
Job Title: Firewall Engineer - Location: London or Gloucester (Hybrid) Contract Type: 6 months, Inside IR35 - Day Rate:£360 - The Role - Were looking for a skilled Firewall Engineer with active UK SC Clearance to join on a 6-month contract. Youll be responsible for firewall rule optimisation, configuration, and transformation activities across complex IT and OT environments. This role requires strong experience across multiple vendors (Palo Alto, Fortinet, Cisco ASA, Check Point) and the ability to collaborate with technical and non-technical stakeholders to maintain compliance and security best practice. Key Responsibilities * Configure, implement, and manage firewall solutions across multi-vendor environments * Review, optimise, and enforce firewall rules and policies * Support migrations and replacement projects for firewall infrastructure
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Lead SAP Analytics Cloud (SAC) Consultant
Lead SAP Analytics Cloud (SAC) Consultant
LA International Computer Consultants Ltd
London
£600 - £650 per day
6 Month contract initially - Based: Hybrid/London (Max - 3 days p/w onsite) Rate: £600 - £650 p/d (via Umbrella company) We have a great opportunity with a world leading organisation where you will be provided with all of the support and development to succeed. A progressive organisation where you can really make a difference. We have a great opportunity for a Lead SAP Analytics Cloud (SAC) Consultant to join the team. We are seeking an experienced and strategic SAP Professional to lead the design, implementation, and optimization of solutions using SAP Analytics Cloud (SAC). This role will be responsible for managing and implementing cloud data integration, analytics strategy, and ensuring business insights are delivered effectively across the organization. It is also expected the candidate should have fair knowledge of SAP S4/HANNA Professional Services processes.
6 Month contract initially - Based: Hybrid/London (Max - 3 days p/w onsite) Rate: £600 - £650 p/d (via Umbrella company) We have a great opportunity with a world leading organisation where you will be provided with all of the support and development to succeed. A progressive organisation where you can really make a difference. We have a great opportunity for a Lead SAP Analytics Cloud (SAC) Consultant to join the team. We are seeking an experienced and strategic SAP Professional to lead the design, implementation, and optimization of solutions using SAP Analytics Cloud (SAC). This role will be responsible for managing and implementing cloud data integration, analytics strategy, and ensuring business insights are delivered effectively across the organization. It is also expected the candidate should have fair knowledge of SAP S4/HANNA Professional Services processes.
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