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        52 Contract API jobs in South West London + 20 miles

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        iOS Mobile Developer

        Hays
        London
        £600.0 - £610.0 per day + c£610 per day (inside IR35)
        Your new role You will be part of the team that will be responsible for developing and maintaining features for the iOS variant of the App. Working in a multi-disciplinary team of tech, design, business, product, infrastructure and test, you will help to design, develop, test and deliver new features while also maintaining existing features. You will be involved throughout the entire product lifecycle being chiefly responsible for producing high-quality, performant, well-documented and tested features that deliver a first-class experience to millions of users across England. Resonsibilities - Work with a multi-disciplinary team to design, document and develop high quality, scalable solutions for the NHS App's iOS application using Swift and Swift UI. - Create appropriate unit and integration tests for your work.
        Your new role You will be part of the team that will be responsible for developing and maintaining features for the iOS variant of the App. Working in a multi-disciplinary team of tech, design, business, product, infrastructure and test, you will help to design, develop, test and deliver new features while also maintaining existing features. You will be involved throughout the entire product lifecycle being chiefly responsible for producing high-quality, performant, well-documented and tested features that deliver a first-class experience to millions of users across England. Resonsibilities - Work with a multi-disciplinary team to design, document and develop high quality, scalable solutions for the NHS App's iOS application using Swift and Swift UI. - Create appropriate unit and integration tests for your work.
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        NEW
        Android Developer 6 months London - Remote £600 per day inside IR35 - Umbrella only Your role You will be part of the team that will be responsible for developing and maintaining features for the Android variant of the clients App. Working in a multi-disciplinary team of tech, design, business, product, infrastructure and test, you will help to design, develop, test and deliver new features while also maintaining existing features. You will be involved throughout the entire product lifecycle being chiefly responsible for producing high-quality, performant, well-documented and tested features that deliver a first-class experience to millions of users across England. Responsibilities * Work with a multi-disciplinary team to design, document and develop high quality, scalable solutions for the clients App's Android application using Kotlin.
        Android Developer 6 months London - Remote £600 per day inside IR35 - Umbrella only Your role You will be part of the team that will be responsible for developing and maintaining features for the Android variant of the clients App. Working in a multi-disciplinary team of tech, design, business, product, infrastructure and test, you will help to design, develop, test and deliver new features while also maintaining existing features. You will be involved throughout the entire product lifecycle being chiefly responsible for producing high-quality, performant, well-documented and tested features that deliver a first-class experience to millions of users across England. Responsibilities * Work with a multi-disciplinary team to design, document and develop high quality, scalable solutions for the clients App's Android application using Kotlin.
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        PREMIUM
        Contract Length: ~6 Months Location: Hybrid with an expectation to spend approximately one day per week on-site in Stratford, London Day Rate: Up to £500 Start Date: End of September Interview Process: Initial interview followed by one or two client interviews This role requires a highly skilled, hands-on Lead Integration Engineer with significant experience in AWS, Python, and integration platforms. The successful candidate will provide both technical and thought leadership, driving integration initiatives in a complex and evolving environment. Key Responsibilities * Scope, design, and build integrations across third-party platforms leveraging AWS infrastructure * Develop and maintain scalable data pipelines using Python, ensuring data quality, consistency, and reliability
        Contract Length: ~6 Months Location: Hybrid with an expectation to spend approximately one day per week on-site in Stratford, London Day Rate: Up to £500 Start Date: End of September Interview Process: Initial interview followed by one or two client interviews This role requires a highly skilled, hands-on Lead Integration Engineer with significant experience in AWS, Python, and integration platforms. The successful candidate will provide both technical and thought leadership, driving integration initiatives in a complex and evolving environment. Key Responsibilities * Scope, design, and build integrations across third-party platforms leveraging AWS infrastructure * Develop and maintain scalable data pipelines using Python, ensuring data quality, consistency, and reliability
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        NEW
        Contract QA Engineer London/Hybrid (2 days on site, 3 from home) Duration; 4 months (likely to extend) Day rate £450 - outside IR35 A leading UK digital consultancy is seeking a Quality Assurance Engineer to join a high-performing delivery team working on a major client in the property technology sector. The team develops products that make the experience of finding a home better, quicker, and more enjoyable for users. This role goes beyond testing - it is about championing quality at every stage of the software development lifecycle. The successful candidate will help prevent defects rather than just find them, embed quality throughout the process, and support the team in delivering robust, secure, accessible, and user-friendly systems.
        Contract QA Engineer London/Hybrid (2 days on site, 3 from home) Duration; 4 months (likely to extend) Day rate £450 - outside IR35 A leading UK digital consultancy is seeking a Quality Assurance Engineer to join a high-performing delivery team working on a major client in the property technology sector. The team develops products that make the experience of finding a home better, quicker, and more enjoyable for users. This role goes beyond testing - it is about championing quality at every stage of the software development lifecycle. The successful candidate will help prevent defects rather than just find them, embed quality throughout the process, and support the team in delivering robust, secure, accessible, and user-friendly systems.
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        NEW

        Python Developer - Commodities

        McGregor Boyall Associates Limited
        London
        £0650 - £700 per day
        The Role A leading global financial institution is seeking a Python Developer (Contract) to join its Commodities Technology team. This group supports a fast-growing Commodities Index business that spans Oil, Gas, Power, Agriculture, and Metals, providing advanced analytics and tools for structuring and trading. You will play a key role in designing and delivering a new index back-testing platform, working closely with structurers and front office stakeholders. The position offers direct business interaction, exposure to real-world trading problems, and the opportunity to build robust, high-performance solutions in a dynamic environment. Responsibilities o Historical index back-testing o Daily pricing and index level generation o Weighting and rebalancing logic o Basket decomposition and attribution analytics
        The Role A leading global financial institution is seeking a Python Developer (Contract) to join its Commodities Technology team. This group supports a fast-growing Commodities Index business that spans Oil, Gas, Power, Agriculture, and Metals, providing advanced analytics and tools for structuring and trading. You will play a key role in designing and delivering a new index back-testing platform, working closely with structurers and front office stakeholders. The position offers direct business interaction, exposure to real-world trading problems, and the opportunity to build robust, high-performance solutions in a dynamic environment. Responsibilities o Historical index back-testing o Daily pricing and index level generation o Weighting and rebalancing logic o Basket decomposition and attribution analytics
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        NEW
        Job Title: Endur Technical Architect Location: 60/40 with 3 days in Canary Wharf OR Remote Start Date: ASAP Contract Length/End Date: 31st December with possibility of extension Working hours: 40 hrs/week Role Overview Work directly with subject matter experts, Product owners. designers, technical leads and other architects to re-architect/design needs of next generation Gas and Power trading platform with modern technologies, consistent with business and technology strategies. Deep knowledge of energy trading and risk management processes across front, middle and back-office functionalities with an emphasis on physical trading. 1) Expert in designing the architecture of modern, bespoke Energy trading systems, including documenting and agreeing key design decisions and trade-offs across diverse stakeholders.
        Job Title: Endur Technical Architect Location: 60/40 with 3 days in Canary Wharf OR Remote Start Date: ASAP Contract Length/End Date: 31st December with possibility of extension Working hours: 40 hrs/week Role Overview Work directly with subject matter experts, Product owners. designers, technical leads and other architects to re-architect/design needs of next generation Gas and Power trading platform with modern technologies, consistent with business and technology strategies. Deep knowledge of energy trading and risk management processes across front, middle and back-office functionalities with an emphasis on physical trading. 1) Expert in designing the architecture of modern, bespoke Energy trading systems, including documenting and agreeing key design decisions and trade-offs across diverse stakeholders.
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        Developer - Remote - FTC

        Data Careers
        OX5, Kidlington, OX5 1RA
        Up to £40000 per annum + excellent pension and other Emp. Bens.
        Role: Developer - C#.Net/SQL Server (FTC) Location: Remote, (candidates must be based in the UK) Duration: FTC until September 2027 Salary: £40K + a comprehensive range of Employee Benefits, (including 13.5% Pension, Blue Light Card scheme and a wide range of travel and shopping discounts) Key Skills: .Net, C#, SQL Server, XML. XSLT, API's. Why Apply: Joining a busy Application Services Development Team, you will be supporting the enhancements and modifications of key Policing applications as well as the migration of legacy systems to new systems and necessary integrations. It's a fascinating role developing and enhancing a Police Forces Applications, (as well as the API's so that they integrate with other the Police Force applications), that deliver critical services to the wider community.
        Role: Developer - C#.Net/SQL Server (FTC) Location: Remote, (candidates must be based in the UK) Duration: FTC until September 2027 Salary: £40K + a comprehensive range of Employee Benefits, (including 13.5% Pension, Blue Light Card scheme and a wide range of travel and shopping discounts) Key Skills: .Net, C#, SQL Server, XML. XSLT, API's. Why Apply: Joining a busy Application Services Development Team, you will be supporting the enhancements and modifications of key Policing applications as well as the migration of legacy systems to new systems and necessary integrations. It's a fascinating role developing and enhancing a Police Forces Applications, (as well as the API's so that they integrate with other the Police Force applications), that deliver critical services to the wider community.
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        Python Developer

        Hays
        London
        £600.0 - £700.0 per day + Up to £700pd Umbrella
        I am currently working with a London-based Tier 1 investment bank who are actively seeking a Python Developer on a long-term contract basis. What you'll need to succeed * Strong Python programming experience within Financial Services - Mandatory * Good understanding of quantitative finance * Good experience developing and optimising Python-based calculators and models. * Strong experience developing high-performance APIs using Flask or FastAPI. * Expertise in Pandas, NumPy and other computing libraries. * Strong experience liaising with front-office stakeholders What you'll get in return * Initial 6-month contract with extensions * Up to £700pd umbrella * London-based hybrid working What you need to do nowIf you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.
        I am currently working with a London-based Tier 1 investment bank who are actively seeking a Python Developer on a long-term contract basis. What you'll need to succeed * Strong Python programming experience within Financial Services - Mandatory * Good understanding of quantitative finance * Good experience developing and optimising Python-based calculators and models. * Strong experience developing high-performance APIs using Flask or FastAPI. * Expertise in Pandas, NumPy and other computing libraries. * Strong experience liaising with front-office stakeholders What you'll get in return * Initial 6-month contract with extensions * Up to £700pd umbrella * London-based hybrid working What you need to do nowIf you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.
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        NEW
        Robert Half Technology are assisting a global market leading technology consultancy to recruit an Azure DevOps Engineer on a contract basis - Remote working - UK based - Outside IR35 Role * The Azure DevOps Engineer will design, build, and maintain CI/CD pipelines to support the API backbone and other digital initiatives. * Implement best practices for monitoring, logging, and alerting across distributed systems. * Work closely with software development teams to embed DevOps principles and support a culture of continuous integration and continuous delivery (CI/CD). * Drive adoption of test-driven development (TDD) practices within CI/CD workflows. * Contribute to the ongoing development of a scalable, resilient digital API infrastructure. * Collaborate with cross-functional teams to streamline deployments and ensure system reliability.
        Robert Half Technology are assisting a global market leading technology consultancy to recruit an Azure DevOps Engineer on a contract basis - Remote working - UK based - Outside IR35 Role * The Azure DevOps Engineer will design, build, and maintain CI/CD pipelines to support the API backbone and other digital initiatives. * Implement best practices for monitoring, logging, and alerting across distributed systems. * Work closely with software development teams to embed DevOps principles and support a culture of continuous integration and continuous delivery (CI/CD). * Drive adoption of test-driven development (TDD) practices within CI/CD workflows. * Contribute to the ongoing development of a scalable, resilient digital API infrastructure. * Collaborate with cross-functional teams to streamline deployments and ensure system reliability.
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        Location: London, UK (Hybrid 23 days onsite) Type: Contract (6 months) | Rate: Market| Start Date: ASAP About the Role Our client, a leading global organization, is looking for an experienced DevSecOps Pentester to join a leading security team in London. Youll perform penetration tests and security assessments across CI/CD pipelines, cloud environments, and applications, integrating automated security tools and practices into DevOps workflows. This role is ideal for someone who can identify vulnerabilities in code, containers, APIs, and infrastructure-as-code before production, collaborate closely with DevOps and development teams, and help improve enterprise security posture. Key Responsibilities Integrate security tools and practices into CI/CD pipelines for continuous validation.
        Location: London, UK (Hybrid 23 days onsite) Type: Contract (6 months) | Rate: Market| Start Date: ASAP About the Role Our client, a leading global organization, is looking for an experienced DevSecOps Pentester to join a leading security team in London. Youll perform penetration tests and security assessments across CI/CD pipelines, cloud environments, and applications, integrating automated security tools and practices into DevOps workflows. This role is ideal for someone who can identify vulnerabilities in code, containers, APIs, and infrastructure-as-code before production, collaborate closely with DevOps and development teams, and help improve enterprise security posture. Key Responsibilities Integrate security tools and practices into CI/CD pipelines for continuous validation.
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        NEW

        Pentester

        Queen Square Recruitment Limited
        London
        Unspecified
        Internal Pentester Start: ASAP |Duration: 6 months |Location: London (Hybrid, 23 days in office) |Rate: Market About the Role Our client, a leading global organization, is looking for a skilledInternal Pentesterto join a leading security team in London. This contract role is perfect for someone experienced in penetration testing across networks, systems, web applications, APIs, and cloud environments, who can identify vulnerabilities, simulate attacks, and deliver actionable remediation advice. Youll work in a compliance-driven, high-security environment, collaborating with cross-functional teams to strengthen the organizations security posture. What Youll Do Conduct full-scope penetration tests on applications, APIs, internal infrastructure, networks, and cloud environments (AWS, Azure, GCP).
        Internal Pentester Start: ASAP |Duration: 6 months |Location: London (Hybrid, 23 days in office) |Rate: Market About the Role Our client, a leading global organization, is looking for a skilledInternal Pentesterto join a leading security team in London. This contract role is perfect for someone experienced in penetration testing across networks, systems, web applications, APIs, and cloud environments, who can identify vulnerabilities, simulate attacks, and deliver actionable remediation advice. Youll work in a compliance-driven, high-security environment, collaborating with cross-functional teams to strengthen the organizations security posture. What Youll Do Conduct full-scope penetration tests on applications, APIs, internal infrastructure, networks, and cloud environments (AWS, Azure, GCP).
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        NEW
        Description Why LBR? An amazing market position, enviable growth, collaboration and wonderful people are just some of the reasons to further your career with Law Business Research. Our culture is shaped by our core values that promote equality, agility, and respect in everything we do. We are proud to be an equal opportunities employer and are committed to ensuring that all candidates are given the same opportunity to succeed regardless of their sex, gender identity/expression or reassignment, sexual orientation, marital status, race, colour, nationality, ethnic or national origin, religion, age or disability We also take our place in this world of ours very seriously and engage in a wide variety of charitable and community based initiatives.
        Description Why LBR? An amazing market position, enviable growth, collaboration and wonderful people are just some of the reasons to further your career with Law Business Research. Our culture is shaped by our core values that promote equality, agility, and respect in everything we do. We are proud to be an equal opportunities employer and are committed to ensuring that all candidates are given the same opportunity to succeed regardless of their sex, gender identity/expression or reassignment, sexual orientation, marital status, race, colour, nationality, ethnic or national origin, religion, age or disability We also take our place in this world of ours very seriously and engage in a wide variety of charitable and community based initiatives.
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        Integration Developer - Salesforce Education Cloud-Student Systems Implementation Integration Developer with experience of working on large enterprise-scale programmes, ideally in Higher Education, is needed to support a Salesforce Education Cloud, for our higher education client. 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. Essential Experience * Proven experience as an Integration Developer on enterprise-scale programmes, preferably in Higher Education. * 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
        Integration Developer - Salesforce Education Cloud-Student Systems Implementation Integration Developer with experience of working on large enterprise-scale programmes, ideally in Higher Education, is needed to support a Salesforce Education Cloud, for our higher education client. 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. Essential Experience * Proven experience as an Integration Developer on enterprise-scale programmes, preferably in Higher Education. * 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
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        Job Title: Contract Web Applications Developer (Full Stack) Contract: 3-Month Initial Contract (with potential extension) Location: Remote Industry: Financial Services We are seeking a skilled Web Applications Developer for an initial 3-month contract with a leading financial services client. The successful candidate will bring hands-on financial services experience and strong full stack development expertise, working on the design, development, and optimization of modern web applications. * Design, build, and maintain scalable full stack web applications in a financial services environment. * Develop APIs and backend services using Python and FastAPI. * Implement front-end solutions with TypeScript and modern web frameworks. * Work with agent frameworks and MCP (Model Context Protocol) to integrate intelligent systems into applications.
        Job Title: Contract Web Applications Developer (Full Stack) Contract: 3-Month Initial Contract (with potential extension) Location: Remote Industry: Financial Services We are seeking a skilled Web Applications Developer for an initial 3-month contract with a leading financial services client. The successful candidate will bring hands-on financial services experience and strong full stack development expertise, working on the design, development, and optimization of modern web applications. * Design, build, and maintain scalable full stack web applications in a financial services environment. * Develop APIs and backend services using Python and FastAPI. * Implement front-end solutions with TypeScript and modern web frameworks. * Work with agent frameworks and MCP (Model Context Protocol) to integrate intelligent systems into applications.
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        Chubb is the worlds largest publicly traded property and casualty insurer. With operations in 54 countries, Chubb provides commercial and personal property and casualty insurance, personal accident and supplemental health insurance, reinsurance and life insurance to a diverse group of clients. Scope Reporting to the Global Head of Integration Platform, this leader will be responsible for leading the design and delivery for our Integration and API platforms S/he will be responsible for evangelizing the adoption of these platforms in partnership with EMEA CIO teams. S/he will govern global solution designs that leverage these platforms S/he will also be the Chapter Area Lead for Integration Engineering discipline. Hiring, training and mentoring software engineers in the specialization around Integration solutions.
        Chubb is the worlds largest publicly traded property and casualty insurer. With operations in 54 countries, Chubb provides commercial and personal property and casualty insurance, personal accident and supplemental health insurance, reinsurance and life insurance to a diverse group of clients. Scope Reporting to the Global Head of Integration Platform, this leader will be responsible for leading the design and delivery for our Integration and API platforms S/he will be responsible for evangelizing the adoption of these platforms in partnership with EMEA CIO teams. S/he will govern global solution designs that leverage these platforms S/he will also be the Chapter Area Lead for Integration Engineering discipline. Hiring, training and mentoring software engineers in the specialization around Integration solutions.
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        Tester with strong skills in integration testing across cloud platforms is needed to support our Higher education client on a salesforce education cloud implementation. The Tester will be tasked with validating with validating end-to-end integrations and ensure all non-functional requirements, across performance, security, reliability, and automation whilst building test coverage into CI/CD pipelines ensuring quality at speed in an Agile, DevOps-enabled environment. * Experience in system integration testing across distributed systems and cloud platforms. * Strong hands-on knowledge of Azure integration services (Logic Apps, Azure Functions, Service Bus, API * Management). * Experience with REST API testing, Swagger/OpenAPI validation, and API test automation. * Solid background in non-functional testing, including performance, security, and resilience testing.
        Tester with strong skills in integration testing across cloud platforms is needed to support our Higher education client on a salesforce education cloud implementation. The Tester will be tasked with validating with validating end-to-end integrations and ensure all non-functional requirements, across performance, security, reliability, and automation whilst building test coverage into CI/CD pipelines ensuring quality at speed in an Agile, DevOps-enabled environment. * Experience in system integration testing across distributed systems and cloud platforms. * Strong hands-on knowledge of Azure integration services (Logic Apps, Azure Functions, Service Bus, API * Management). * Experience with REST API testing, Swagger/OpenAPI validation, and API test automation. * Solid background in non-functional testing, including performance, security, and resilience testing.
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        Overview We are seeking an experienced PHP developer to join our development team. The role involves building and maintaining web applications that integrate with our core quote and sales engines. The successful candidate will have strong PHP and MySQL expertise, with the ability to write efficient, well-structured code without over-reliance on heavy frameworks. Key Responsibilities Develop and maintain PHP applications that integrate with our back-end systems. Design and optimise MySQL databases, including complex queries and schema design for performance and scalability. Implement APIs for third-party website integration. Work across both back-end and front-end as needed (HTML, CSS, JavaScript). Ensure code quality, efficiency, and security best practices. Collaborate with team members to deliver reliable and maintainable solutions. Essential Skills & Experience
        Overview We are seeking an experienced PHP developer to join our development team. The role involves building and maintaining web applications that integrate with our core quote and sales engines. The successful candidate will have strong PHP and MySQL expertise, with the ability to write efficient, well-structured code without over-reliance on heavy frameworks. Key Responsibilities Develop and maintain PHP applications that integrate with our back-end systems. Design and optimise MySQL databases, including complex queries and schema design for performance and scalability. Implement APIs for third-party website integration. Work across both back-end and front-end as needed (HTML, CSS, JavaScript). Ensure code quality, efficiency, and security best practices. Collaborate with team members to deliver reliable and maintainable solutions. Essential Skills & Experience
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        NEW
        18 Month Fixed Term Contract Milton Keynes: £53,000 - £57,000 Hybrid Working Ready to shape the future of digital assessment through precision, collaboration, and innovation? AQA is looking for a Senior Test Analyst - Automation with proven experience in creating automated tests using BDD methodology. You'll translate specifications into meaningful automated tests using C# toolsets and libraries such as Playwright. You're someone who thrives on quality, champions best practices, and is eager to play a key role in delivering the systems behind millions of GCSE and A-level results across the UK and internationally. This is more than just writing test scripts - it's your opportunity to influence how we build, test, and deliver software that truly matters.
        18 Month Fixed Term Contract Milton Keynes: £53,000 - £57,000 Hybrid Working Ready to shape the future of digital assessment through precision, collaboration, and innovation? AQA is looking for a Senior Test Analyst - Automation with proven experience in creating automated tests using BDD methodology. You'll translate specifications into meaningful automated tests using C# toolsets and libraries such as Playwright. You're someone who thrives on quality, champions best practices, and is eager to play a key role in delivering the systems behind millions of GCSE and A-level results across the UK and internationally. This is more than just writing test scripts - it's your opportunity to influence how we build, test, and deliver software that truly matters.
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        NEWFEATURED
        NEW CONTRACT iOS DEVELOPER ROLE AVAILABLE - REMOTE (UK/EU-BASED) * Outside IR35 * 9-12 Month Initial Contract | Start ASAP | Likely Extension A new contract opportunity for a skilled iOS Developer to build and deploy AI-powered fintech mobile apps. You will work on secure, high-quality solutions while integrating machine learning features such as NLP and recommendation systems. * Develop and deploy iOS apps (Swift / Objective-C, iOS SDK, App Store). * Integrate RESTful APIs and backend services into iOS applications. * Embed AI/ML features (NLP, recommendation engines) into mobile workflows. * Deliver compliant and secure fintech solutions (GDPR, OAuth, encryption). * Experience managing projects end-to-end (greenfield exp.) * Strong expertise in iOS development (Swift / Objective-C, iOS SDK, App Store deployment)
        NEW CONTRACT iOS DEVELOPER ROLE AVAILABLE - REMOTE (UK/EU-BASED) * Outside IR35 * 9-12 Month Initial Contract | Start ASAP | Likely Extension A new contract opportunity for a skilled iOS Developer to build and deploy AI-powered fintech mobile apps. You will work on secure, high-quality solutions while integrating machine learning features such as NLP and recommendation systems. * Develop and deploy iOS apps (Swift / Objective-C, iOS SDK, App Store). * Integrate RESTful APIs and backend services into iOS applications. * Embed AI/ML features (NLP, recommendation engines) into mobile workflows. * Deliver compliant and secure fintech solutions (GDPR, OAuth, encryption). * Experience managing projects end-to-end (greenfield exp.) * Strong expertise in iOS development (Swift / Objective-C, iOS SDK, App Store deployment)
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        FEATURED
        Integration Developer with experience of working on large enterprise-scale programmes, ideally in Higher Education, is needed to support a Salesforce Education Cloud, for our higher education client. The role will focus on the integration development using Microsoft Azure PaaS, and support the interim and long-term transition from legacy systems (such as SITS) to cloud-native platforms. Essential Experience * Proven experience as an Integration Developer on enterprise-scale programmes, preferably in Higher Education. * 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. * Experience of integrating with Salesforce (REST/SOAP APIs, platform events) and Canvas LMS or similar SaaS platforms.
        Integration Developer with experience of working on large enterprise-scale programmes, ideally in Higher Education, is needed to support a Salesforce Education Cloud, for our higher education client. The role will focus on the integration development using Microsoft Azure PaaS, and support the interim and long-term transition from legacy systems (such as SITS) to cloud-native platforms. Essential Experience * Proven experience as an Integration Developer on enterprise-scale programmes, preferably in Higher Education. * 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. * Experience of integrating with Salesforce (REST/SOAP APIs, platform events) and Canvas LMS or similar SaaS platforms.
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        Job Description Workday Integration Consultant Key Responsibilities Design, develop, and maintain Workday integrations including Core Connectors, EIBs, Studio, and custom solutions. Leverage Workday HCM core knowledge to deliver effective integration solutions. Perform XML/XSLT transformations and handle various file formats (CSV, XML, JSON, etc.). Work with APIs, Web Services (SOAP/REST), and file transfer protocols (SFTP/FTP). Ensure accuracy, compliance, and performance of integrations across HR, Payroll, Benefits, and Finance systems. Collaborate with business stakeholders to translate requirements and process logic into actionable code and functional solutions. Troubleshoot, optimize, and support integrations in production environments. Plan, prioritize, and deliver assigned work within agreed timelines. Required Skills & Qualifications
        Job Description Workday Integration Consultant Key Responsibilities Design, develop, and maintain Workday integrations including Core Connectors, EIBs, Studio, and custom solutions. Leverage Workday HCM core knowledge to deliver effective integration solutions. Perform XML/XSLT transformations and handle various file formats (CSV, XML, JSON, etc.). Work with APIs, Web Services (SOAP/REST), and file transfer protocols (SFTP/FTP). Ensure accuracy, compliance, and performance of integrations across HR, Payroll, Benefits, and Finance systems. Collaborate with business stakeholders to translate requirements and process logic into actionable code and functional solutions. Troubleshoot, optimize, and support integrations in production environments. Plan, prioritize, and deliver assigned work within agreed timelines. Required Skills & Qualifications
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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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        NEWFEATURED

        Technical Architect

        Queen Square Recruitment Limited
        RG40, Wokingham
        £500 per day inside IR35
        Azure Technical Architect Start date: ASAP (within the next 4 weeks) Contract length: 6 months Day rate: £500 per day inside IR35 Location: Wokingham - 3 days per week onsite Our client, a large global consultancy, is looking for an Azure Solution Architectto play a key role in the RegDB decommission program, working closely with stakeholders and offshore teams to design, develop, and deliver high-quality Azure-based solutions. This is a hands-on role where you will combine solution design expertise with strong development and integration skills. * Collaborate with stakeholders and coordinate delivery with offshore teams. * Lead the development of the RegDB program and ensure on-time delivery of project code. * Provide clear and timely progress updates to stakeholders (daily/weekly). * Conduct requirement meetings and translate needs into technical solutions.
        Azure Technical Architect Start date: ASAP (within the next 4 weeks) Contract length: 6 months Day rate: £500 per day inside IR35 Location: Wokingham - 3 days per week onsite Our client, a large global consultancy, is looking for an Azure Solution Architectto play a key role in the RegDB decommission program, working closely with stakeholders and offshore teams to design, develop, and deliver high-quality Azure-based solutions. This is a hands-on role where you will combine solution design expertise with strong development and integration skills. * Collaborate with stakeholders and coordinate delivery with offshore teams. * Lead the development of the RegDB program and ensure on-time delivery of project code. * Provide clear and timely progress updates to stakeholders (daily/weekly). * Conduct requirement meetings and translate needs into technical solutions.
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        NEW
        Solution Architect role - Contract, Inside IR35 - London - Hybrid I am working on an exciting opportunity with a leading insurer operating in the Specialty Markets. They are urgently seeking a highly experienced Solution Architect to join their dynamic on a day-rate contract basis. As a Solution Architect, you will play a pivotal role in shaping the technical direction of innovative digital products, driving architectural excellence across complex insurance solutions. Candidates must have prior experience as a Solution Architect within the Specialty Insurance and/or London Market sector. This domain expertise is critical to understanding the unique challenges and regulatory landscape of the industry. * Translate product vision and business outcomes into technical enablers and architectural building blocks.
        Solution Architect role - Contract, Inside IR35 - London - Hybrid I am working on an exciting opportunity with a leading insurer operating in the Specialty Markets. They are urgently seeking a highly experienced Solution Architect to join their dynamic on a day-rate contract basis. As a Solution Architect, you will play a pivotal role in shaping the technical direction of innovative digital products, driving architectural excellence across complex insurance solutions. Candidates must have prior experience as a Solution Architect within the Specialty Insurance and/or London Market sector. This domain expertise is critical to understanding the unique challenges and regulatory landscape of the industry. * Translate product vision and business outcomes into technical enablers and architectural building blocks.
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        PowerBI Specialist (Contract) | £350-£450 p/day (Outside IR35) | 3 Months (strong possibility of extension) | ASAP We're hiring on behalf of a fast-growing SaaS company that's looking for an experienced Power BI Specialist to take ownership of their reporting environment. This is a fully remote contract role, starting immediately. The client has a strong BI foundation in place, but they're now looking for someone who can streamline reporting, reduce maintenance, and optimise their use of Power BI at scale. Right now, customer-specific reports are managed individually (e.g. 45+ reports needing updates when a change is made). They want to consolidate, automate, and improve efficiency across their reporting suite.
        PowerBI Specialist (Contract) | £350-£450 p/day (Outside IR35) | 3 Months (strong possibility of extension) | ASAP We're hiring on behalf of a fast-growing SaaS company that's looking for an experienced Power BI Specialist to take ownership of their reporting environment. This is a fully remote contract role, starting immediately. The client has a strong BI foundation in place, but they're now looking for someone who can streamline reporting, reduce maintenance, and optimise their use of Power BI at scale. Right now, customer-specific reports are managed individually (e.g. 45+ reports needing updates when a change is made). They want to consolidate, automate, and improve efficiency across their reporting suite.
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        What is the average salary for API in South West London?

        Average salary per year
        £82,499

        The average salary for a API in South West London is £82,499. API in South West London salaries range from £64,999 to £92,499.

        Frequently Asked Questions

        How many contract API jobs are there in South West London?
        There are 52 contract API jobs within 20 miles of South West London available on Jobsite right now.

        What other similar jobs are there to contract API jobs in South West London?
        As well as contract API jobs in South West London, you can find contract IT, Software Development, Management, amongst many others.