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        170 Contract API jobs in London + 20 miles

        Engineering Manager

        Stepstone UK
        Southwark, South East London (SE1), SE1 0TA
        Competitive salary
        Company Description - At The Stepstone Group, we have a simple yet very important mission: The right job for everyone. Using our data, platform, and technology, we create opportunities for jobseekers and companies around the world to find a perfect match in fair and equitable way. With over 20 brands across 30+ countries, we strive for fair and unbiased hiring. Join our team of 4,000+ employees and be part of reshaping the labour market and becoming the worlds leading job platform. Job Description - Join our team and youll be responsible for providing technical leadership to all engineering and development areas across your domain, developing and executing an engineering strategy aligned to the portfolio and global tech strategies. Working in the Design and Platform Performance domain, you willlead the technology side of web and mobile analytics for a platform with ov
        Company Description - At The Stepstone Group, we have a simple yet very important mission: The right job for everyone. Using our data, platform, and technology, we create opportunities for jobseekers and companies around the world to find a perfect match in fair and equitable way. With over 20 brands across 30+ countries, we strive for fair and unbiased hiring. Join our team of 4,000+ employees and be part of reshaping the labour market and becoming the worlds leading job platform. Job Description - Join our team and youll be responsible for providing technical leadership to all engineering and development areas across your domain, developing and executing an engineering strategy aligned to the portfolio and global tech strategies. Working in the Design and Platform Performance domain, you willlead the technology side of web and mobile analytics for a platform with ov
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        Job Description - Verisks Summer Internship Program is designed to provide you with real work experience, professional development, and networking opportunities. This is a full-time (35 hours/ week) paid internship program spanning ten weeks from mid-June through end of August 2026. Participation in the internship program requires that you are located near London office as the program is a hybrid work schedule, requiring you to be in the office at least 2 days per week. As an Integration Analyst Intern, youll work closely with product owners, customer integration leads, and other integration analysts to support data-driven initiatives. Youll gain hands-on experience collecting and processing data through APIs, visualizing insights, and contributing to the development of scalable data solutions in the insurance domain. We want to get to know YOU.
        Job Description - Verisks Summer Internship Program is designed to provide you with real work experience, professional development, and networking opportunities. This is a full-time (35 hours/ week) paid internship program spanning ten weeks from mid-June through end of August 2026. Participation in the internship program requires that you are located near London office as the program is a hybrid work schedule, requiring you to be in the office at least 2 days per week. As an Integration Analyst Intern, youll work closely with product owners, customer integration leads, and other integration analysts to support data-driven initiatives. Youll gain hands-on experience collecting and processing data through APIs, visualizing insights, and contributing to the development of scalable data solutions in the insurance domain. We want to get to know YOU.
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        Python Developer

        Hireful
        Central London, London
        £35k - £42k base salary + great benefits
        Are you a Python Developer, keen help shape the technology that powers over 5,000 schools across the UK? Are you a Python Software Engineer who’s excited by the idea of building intuitive, high-impact web applications that truly make a difference to the education sector? If you love writing clean code, collaborative development and solving real-world problems, this is your chance to work on meaningful products in a modern engineering environment. Role: Python Developer, Python Software Engineer, Software Engineer, Software Developer - Location: 100% work from home - Salary: £35k - £42k base salary + great benefits - You will design and maintain Python and Django applications, craft reliable REST APIs, optimise MySQL-backed systems and contribute to product features from concept to deployment. You will work closely with other developers, designers and product managers
        Are you a Python Developer, keen help shape the technology that powers over 5,000 schools across the UK? Are you a Python Software Engineer who’s excited by the idea of building intuitive, high-impact web applications that truly make a difference to the education sector? If you love writing clean code, collaborative development and solving real-world problems, this is your chance to work on meaningful products in a modern engineering environment. Role: Python Developer, Python Software Engineer, Software Engineer, Software Developer - Location: 100% work from home - Salary: £35k - £42k base salary + great benefits - You will design and maintain Python and Django applications, craft reliable REST APIs, optimise MySQL-backed systems and contribute to product features from concept to deployment. You will work closely with other developers, designers and product managers
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        FEATURED
        Pega Lead Systems Architect - Pega, Process/Task Mining £550 per day (Outside IR35) Remote / London - 6 Months - My client is an instantly recognisable consultancy who seek a PEGA Lead Systems Architect (LSA) to take ownership of designing, architecting, and delivering innovative BPM and CRM solutions using the PEGA Platform, for a well-known end client. * Extensive experience as a PEGA Lead Systems Architect, with a strong focus on enterprise-level solutions. * Prior involvement of at least one implementation with Process/Task Mining * PEGA Lead System Architect (PCLSA) certification is essential. * In-depth knowledge of PEGA frameworks, including Customer Service, Decisioning, and Smart Disputes. * Hands-on expertise in system integrations using SOAP/REST APIs, JMS, MQ, and Kafka. * Comprehensive understanding of case management, decisioning capabilities, and the PE
        Pega Lead Systems Architect - Pega, Process/Task Mining £550 per day (Outside IR35) Remote / London - 6 Months - My client is an instantly recognisable consultancy who seek a PEGA Lead Systems Architect (LSA) to take ownership of designing, architecting, and delivering innovative BPM and CRM solutions using the PEGA Platform, for a well-known end client. * Extensive experience as a PEGA Lead Systems Architect, with a strong focus on enterprise-level solutions. * Prior involvement of at least one implementation with Process/Task Mining * PEGA Lead System Architect (PCLSA) certification is essential. * In-depth knowledge of PEGA frameworks, including Customer Service, Decisioning, and Smart Disputes. * Hands-on expertise in system integrations using SOAP/REST APIs, JMS, MQ, and Kafka. * Comprehensive understanding of case management, decisioning capabilities, and the PE
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        Salesforce Developer

        Halian Technology Limited
        Central London (W1)
        From £50,000 to £60,000 per annum Plus bonus and benefits
        Job Specification: Mid-Level Salesforce Developer (FinTech) Location:Hybrid - Employment Type:Full-time - Level:Mid-Level - About the Role - We are seeking a skilledMid-Level Salesforce Developerto join my clients growing fintech engineering team. You will be responsible for developing, enhancing, and maintaining our Salesforce platform to support high-performance financial products, compliant workflows, and exceptional customer experiences. Youll work closely with product, operations, and engineering teams to translate business requirements into scalable Salesforce solutions. Key Responsibilities * Design, build, and deploy custom solutions usingLightning Web Components (LWC),Apex,SOQL/SOSL, andSalesforce APIs. * Configure Salesforce objects, flows, validation rules, process automation, and integrations. * Maintain and improve existing codebase, ensuring performance,
        Job Specification: Mid-Level Salesforce Developer (FinTech) Location:Hybrid - Employment Type:Full-time - Level:Mid-Level - About the Role - We are seeking a skilledMid-Level Salesforce Developerto join my clients growing fintech engineering team. You will be responsible for developing, enhancing, and maintaining our Salesforce platform to support high-performance financial products, compliant workflows, and exceptional customer experiences. Youll work closely with product, operations, and engineering teams to translate business requirements into scalable Salesforce solutions. Key Responsibilities * Design, build, and deploy custom solutions usingLightning Web Components (LWC),Apex,SOQL/SOSL, andSalesforce APIs. * Configure Salesforce objects, flows, validation rules, process automation, and integrations. * Maintain and improve existing codebase, ensuring performance,
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        Senior Full Stack Engineer | Cybersecurity Scale-Up | Fully Remote (UK) Want to use your full stack skills to help stop real-world cyber attacks? This is your chance to join afast-growing, VC-backed cybersecurity innovator, recognised by Gartner and trusted by Fortune 500s and critical infrastructure providers worldwide. Theyre building cutting-edge technology that helps organisations continuously understand how they could be compromised and theyre scaling fast. Now, theyre looking for aSenior Full Stack Engineerto join their team, where youll help shape the customer experience for some of the worlds largest enterprises. * Designing and developingenterprise-grade SaaS featuresacross backend and frontend systems * Building secure, scalable, and high-performing APIs and services (NestJS, GraphQL, REST) * Creatingdata-driven dashboards and UIswith React, Next.js, and Cha
        Senior Full Stack Engineer | Cybersecurity Scale-Up | Fully Remote (UK) Want to use your full stack skills to help stop real-world cyber attacks? This is your chance to join afast-growing, VC-backed cybersecurity innovator, recognised by Gartner and trusted by Fortune 500s and critical infrastructure providers worldwide. Theyre building cutting-edge technology that helps organisations continuously understand how they could be compromised and theyre scaling fast. Now, theyre looking for aSenior Full Stack Engineerto join their team, where youll help shape the customer experience for some of the worlds largest enterprises. * Designing and developingenterprise-grade SaaS featuresacross backend and frontend systems * Building secure, scalable, and high-performing APIs and services (NestJS, GraphQL, REST) * Creatingdata-driven dashboards and UIswith React, Next.js, and Cha
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        Senior Backend Engineer | High-Growth Cybersecurity Scale-Up | Fully Remote (UK) Are you ready to build the core systems that power one of the fastest-growing cybersecurity platforms on the planet? This is your chance to join a research-driven, venture-backed security scale-up thats trusted by some of the worlds biggest enterprises and critical infrastructure providers. Recognised by Gartner, armed with funding, and scaling aggressively worldwide, theyre on a mission to reshape how organisations stay ahead of real-world cyber threats. As aSenior Backend Engineer, youll play a key role in building scalable, high-performance backend systems that ingest, process, and serve data on millions of assetshelping global security teams uncover exposures before attackers do. * Designing and building backend services and data pipelines powering a cutting-edge cybersecurity platfor
        Senior Backend Engineer | High-Growth Cybersecurity Scale-Up | Fully Remote (UK) Are you ready to build the core systems that power one of the fastest-growing cybersecurity platforms on the planet? This is your chance to join a research-driven, venture-backed security scale-up thats trusted by some of the worlds biggest enterprises and critical infrastructure providers. Recognised by Gartner, armed with funding, and scaling aggressively worldwide, theyre on a mission to reshape how organisations stay ahead of real-world cyber threats. As aSenior Backend Engineer, youll play a key role in building scalable, high-performance backend systems that ingest, process, and serve data on millions of assetshelping global security teams uncover exposures before attackers do. * Designing and building backend services and data pipelines powering a cutting-edge cybersecurity platfor
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        At Mace, our purpose is to redefine the boundaries of ambition. We believe in creating places that are responsible, bringing transformative impact to our people, communities and societies across the globe. To learn more about our purpose, culture and priorities, visit our strategy site. Within our consult business, we harness our unique combination of leading-edge practical expertise and project delivery consultancy to unlock the potential in every project. * Safety first - Going home safe and well. * Client focus - Deliver on our promise. * Integrity - Always do the right thing. * Create opportunity - for our people to excel. The role is for a developer specialising in the Microsoft Power platform technology stack (SharePoint Online, Power Apps, Power Automate and Power Pages). It is a client-facing role supporting fee-earning projects and programmes.
        At Mace, our purpose is to redefine the boundaries of ambition. We believe in creating places that are responsible, bringing transformative impact to our people, communities and societies across the globe. To learn more about our purpose, culture and priorities, visit our strategy site. Within our consult business, we harness our unique combination of leading-edge practical expertise and project delivery consultancy to unlock the potential in every project. * Safety first - Going home safe and well. * Client focus - Deliver on our promise. * Integrity - Always do the right thing. * Create opportunity - for our people to excel. The role is for a developer specialising in the Microsoft Power platform technology stack (SharePoint Online, Power Apps, Power Automate and Power Pages). It is a client-facing role supporting fee-earning projects and programmes.
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        Trading System Engineer Rates & Credit Fixed Income - Position Overview - Job Title Trading System Engineer - Rates and Credit Fixed Income - Location London - Corporate Title Assistant Vice President/Vice President - You will play a key role in the transformation of Rates and Credit Fixed Income technology landscape. As part of our multi-year platform modernisation project, you will be responsible for building a suite of new, real-time, high-performance applications supporting various trading workflows. You will be involved in building solutions across the stack and working closely with Business stakeholders to build a maintainable, operationally efficient and scalable platform to last the next decade. What well offer you - A healthy, engaged and well-supported workforce are better equipped to do their best work and, more importantly, enjoy their lives inside and out
        Trading System Engineer Rates & Credit Fixed Income - Position Overview - Job Title Trading System Engineer - Rates and Credit Fixed Income - Location London - Corporate Title Assistant Vice President/Vice President - You will play a key role in the transformation of Rates and Credit Fixed Income technology landscape. As part of our multi-year platform modernisation project, you will be responsible for building a suite of new, real-time, high-performance applications supporting various trading workflows. You will be involved in building solutions across the stack and working closely with Business stakeholders to build a maintainable, operationally efficient and scalable platform to last the next decade. What well offer you - A healthy, engaged and well-supported workforce are better equipped to do their best work and, more importantly, enjoy their lives inside and out
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        A World-Changing Company - Palantir builds the worlds leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role - As a Frontline Software Engineer at Palantir, you would begin your journey on a short-term assignment where you are embedded with customers. This unique experience lets you work directly with users, gaining firsthand insight into how our products are used and the challenges our customers face. Unlike traditional engineering roles, Frontline immerses you in complex, ambiguous problems, empowering you to deliver impactful solutions across some of the worlds most important industries and institutions.
        A World-Changing Company - Palantir builds the worlds leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role - As a Frontline Software Engineer at Palantir, you would begin your journey on a short-term assignment where you are embedded with customers. This unique experience lets you work directly with users, gaining firsthand insight into how our products are used and the challenges our customers face. Unlike traditional engineering roles, Frontline immerses you in complex, ambiguous problems, empowering you to deliver impactful solutions across some of the worlds most important industries and institutions.
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        A World-Changing Company - Palantir builds the worlds leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role - Backend Software Engineers at Palantir build software at scale to transform how organizations use data. Our Software Engineers are involved throughout the product lifecycle, from idea generation, design, prototyping, and production delivery. You will collaborate closely with technical and non-technical teammates to understand our customers' problems and build products that solve them. We encourage movement across teams to share context, skills, and experience, so you'll learn about many different technologies and aspects of each product.
        A World-Changing Company - Palantir builds the worlds leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role - Backend Software Engineers at Palantir build software at scale to transform how organizations use data. Our Software Engineers are involved throughout the product lifecycle, from idea generation, design, prototyping, and production delivery. You will collaborate closely with technical and non-technical teammates to understand our customers' problems and build products that solve them. We encourage movement across teams to share context, skills, and experience, so you'll learn about many different technologies and aspects of each product.
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        A World-Changing Company - Palantir builds the worlds leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role - Palantir Foundry is an end-to-end platform for data-driven decision-making. We're transforming the way organisations securely integrate their data, so they can then build reliable, critical applications atop that unified foundation. Our customers use Foundry to perform rich analyses that drive core operations within their organisations. They can also build sophisticated, full-fledged programs, such as common operating pictures, alert-triaging inboxes, and resource allocation planning tools driven by rich-ML models.
        A World-Changing Company - Palantir builds the worlds leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role - Palantir Foundry is an end-to-end platform for data-driven decision-making. We're transforming the way organisations securely integrate their data, so they can then build reliable, critical applications atop that unified foundation. Our customers use Foundry to perform rich analyses that drive core operations within their organisations. They can also build sophisticated, full-fledged programs, such as common operating pictures, alert-triaging inboxes, and resource allocation planning tools driven by rich-ML models.
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        C# Developer

        VIQU IT Recruitment
        The City, City of London (EC4), EC4M 7JH
        £300 - 400 per day
        A client is seeking an experienced C# Developer to join their development team and support a key internal initiative. In this role, you'll also play a major part in configuring, enhancing, and integrating Microsoft Dynamics 365 within the business. As a Software Developer, you’ll collaborate closely with senior stakeholders to deliver clean, efficient, and reliable code that underpins critical business applications. * Produce well-structured and clearly documented C# / .NET code. * Configure, customise, and maintain Microsoft Dynamics 365. * Build and support integrations across Dynamics 365 and other systems. * Develop plugins, workflows, and bespoke components within the Dynamics ecosystem. * Work seamlessly with cross-functional teams in a fully remote setting. * Take part in code reviews and contribute to help define best practices.
        A client is seeking an experienced C# Developer to join their development team and support a key internal initiative. In this role, you'll also play a major part in configuring, enhancing, and integrating Microsoft Dynamics 365 within the business. As a Software Developer, you’ll collaborate closely with senior stakeholders to deliver clean, efficient, and reliable code that underpins critical business applications. * Produce well-structured and clearly documented C# / .NET code. * Configure, customise, and maintain Microsoft Dynamics 365. * Build and support integrations across Dynamics 365 and other systems. * Develop plugins, workflows, and bespoke components within the Dynamics ecosystem. * Work seamlessly with cross-functional teams in a fully remote setting. * Take part in code reviews and contribute to help define best practices.
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        NEW
        Braze Platform Administrator / Braze Campaign Builder - Contract Length: 3 Months (w/ Potential Extension) Umbrella Rate: £430 PD (Inside IR35) Location: London - Working Pattern: Hybrid (2 Days on Site PW) We are recruiting multiple Braze-certified Platform Administrators / Campaign Builders for a leading, mass-media and telecommunications company. You will configure, maintain, and optimise the Braze Customer Engagement Platform, working within cross-functional squads to build campaign journeys. This is a technical, hands-on role focused on turning marketing strategy into high-quality Braze builds. Key Responsibilities * Configure Braze settings, integrations, APIs, SDKs * Manage user roles, permissions, and workspaces * Support marketing teams with journey planning and campaign execution * Ensure data accuracy, governance, and compliance * Troubleshoot issues and op
        Braze Platform Administrator / Braze Campaign Builder - Contract Length: 3 Months (w/ Potential Extension) Umbrella Rate: £430 PD (Inside IR35) Location: London - Working Pattern: Hybrid (2 Days on Site PW) We are recruiting multiple Braze-certified Platform Administrators / Campaign Builders for a leading, mass-media and telecommunications company. You will configure, maintain, and optimise the Braze Customer Engagement Platform, working within cross-functional squads to build campaign journeys. This is a technical, hands-on role focused on turning marketing strategy into high-quality Braze builds. Key Responsibilities * Configure Braze settings, integrations, APIs, SDKs * Manage user roles, permissions, and workspaces * Support marketing teams with journey planning and campaign execution * Ensure data accuracy, governance, and compliance * Troubleshoot issues and op
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        We are seeking an experienced Front-end Engineer to help build and evolve a web-based platform for reinforcement learning (RL) training and RLOps. You will design, implement, and optimise user-facing interfaces and front-end systems that support large-scale RL model development and deployment. Responsibilities * Develop scalable, reliable front-end architecture for an RL training and management platform * Translate requirements into high-quality user interfaces and workflows * Collaborate with designers and engineers to implement visual design within brand guidelines * Ensure cross-browser and cross-device compatibility, resolving UI/UX issues * Optimise performance, including load times and runtime efficiency * Ensure accessibility compliance (e.g., WCAG) * Identify and resolve user-facing bugs and usability issues
        We are seeking an experienced Front-end Engineer to help build and evolve a web-based platform for reinforcement learning (RL) training and RLOps. You will design, implement, and optimise user-facing interfaces and front-end systems that support large-scale RL model development and deployment. Responsibilities * Develop scalable, reliable front-end architecture for an RL training and management platform * Translate requirements into high-quality user interfaces and workflows * Collaborate with designers and engineers to implement visual design within brand guidelines * Ensure cross-browser and cross-device compatibility, resolving UI/UX issues * Optimise performance, including load times and runtime efficiency * Ensure accessibility compliance (e.g., WCAG) * Identify and resolve user-facing bugs and usability issues
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        AEM frontend developer

        Vallum Associates Limited
        London
        From £500 to £600 per day
        Key Responsibilities * AEM Development:Design, develop, and maintainAEM components,templates * Front-End Integration:Collaborate with UX/UI teams to integrate front-end code (HTML, CSS, JavaScript/React/Angular) into AEM for a responsive user experience. * System Integration:Integrate AEM with other core systems and Adobe Experience Cloud products (likeAdobe Analytics,Adobe Target, andAdobe Campaign) using APIs (e.g., RESTful). * Deployment and Support:Participate in the deployment process, conduct unit and system testing, and troubleshoot/debug issues in AEM environments. * Best Practices:Ensure code quality, security, and performance by adhering to AEM and general software development best practices (agile environment).
        Key Responsibilities * AEM Development:Design, develop, and maintainAEM components,templates * Front-End Integration:Collaborate with UX/UI teams to integrate front-end code (HTML, CSS, JavaScript/React/Angular) into AEM for a responsive user experience. * System Integration:Integrate AEM with other core systems and Adobe Experience Cloud products (likeAdobe Analytics,Adobe Target, andAdobe Campaign) using APIs (e.g., RESTful). * Deployment and Support:Participate in the deployment process, conduct unit and system testing, and troubleshoot/debug issues in AEM environments. * Best Practices:Ensure code quality, security, and performance by adhering to AEM and general software development best practices (agile environment).
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        Key Responsibilities - AEM Development: Design, develop, and maintain AEM components, templates, workflows, and OSGi services using Java and the Sling framework. Front-End Integration: Collaborate with UX/UI teams to integrate front-end code (HTML, CSS, JavaScript/React/Angular) into AEM for a responsive user experience. System Integration: Integrate AEM with other core systems and Adobe Experience Cloud products (like Adobe Analytics, Adobe Target, and Adobe Campaign) using APIs (e.g., RESTful). Deployment and Support: Participate in the deployment process, conduct unit and system testing, and troubleshoot/debug issues in AEM environments. Best Practices: Ensure code quality, security, and performance by adhering to AEM and general software development best practices (e.g., in an Agile environment). AEM Sites Assets - AEM Components - AEM Core Development - Adobe Exp
        Key Responsibilities - AEM Development: Design, develop, and maintain AEM components, templates, workflows, and OSGi services using Java and the Sling framework. Front-End Integration: Collaborate with UX/UI teams to integrate front-end code (HTML, CSS, JavaScript/React/Angular) into AEM for a responsive user experience. System Integration: Integrate AEM with other core systems and Adobe Experience Cloud products (like Adobe Analytics, Adobe Target, and Adobe Campaign) using APIs (e.g., RESTful). Deployment and Support: Participate in the deployment process, conduct unit and system testing, and troubleshoot/debug issues in AEM environments. Best Practices: Ensure code quality, security, and performance by adhering to AEM and general software development best practices (e.g., in an Agile environment). AEM Sites Assets - AEM Components - AEM Core Development - Adobe Exp
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        Senior ML Engineer

        Oscar Associates (UK) Limited
        London
        £70000 - £90000 per annum
        Senior Machine Learning Engineer - Salary: £70,000-£90,000 - Location: London (Hybrid) The Opportunity - We're looking for a Senior Machine Learning Engineer to help design, build, and deliver next-generation AI systems. You will work across LLMs, retrieval-augmented generation (RAG), and modern agent frameworks to transform large, unstructured data into meaningful insights and production-ready capabilities. This is a hands-on role within a growing AI team, offering the chance to shape architecture, build scalable pipelines, and ship features that directly impact users. Responsibilities * Develop, integrate, and fine-tune LLMs for natural-language understanding, reasoning, and workflow automation. * Build agentic/LLM-driven workflows for multi-step decision making across diverse data sources. * Architect and deliver ML features such as pattern recognition, entity extr
        Senior Machine Learning Engineer - Salary: £70,000-£90,000 - Location: London (Hybrid) The Opportunity - We're looking for a Senior Machine Learning Engineer to help design, build, and deliver next-generation AI systems. You will work across LLMs, retrieval-augmented generation (RAG), and modern agent frameworks to transform large, unstructured data into meaningful insights and production-ready capabilities. This is a hands-on role within a growing AI team, offering the chance to shape architecture, build scalable pipelines, and ship features that directly impact users. Responsibilities * Develop, integrate, and fine-tune LLMs for natural-language understanding, reasoning, and workflow automation. * Build agentic/LLM-driven workflows for multi-step decision making across diverse data sources. * Architect and deliver ML features such as pattern recognition, entity extr
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        Location: Hybrid / London - Contract: 3 Months initially - Clearance: Active SC clearance required - Ready to take ownership of complex technical delivery in a fast-paced, secure environment? We're looking for a seasoned Technical Delivery Manager who can drive outcomes, unite engineering teams, and keep delivery on track across multiple workstreams. * Lead end-to-end delivery across technical squads, ensuring milestones are hit and risks stay low * Coordinate engineers, architects, and product teams to keep delivery smooth and predictable * Translate technical detail into clear plans, roadmaps, and stakeholder updates * Unblock teams, manage dependencies, and ensure technical decisions support long-term strategy * Own delivery governance in a high-trust, security-focused environment * Proven experience delivering complex technology projects
        Location: Hybrid / London - Contract: 3 Months initially - Clearance: Active SC clearance required - Ready to take ownership of complex technical delivery in a fast-paced, secure environment? We're looking for a seasoned Technical Delivery Manager who can drive outcomes, unite engineering teams, and keep delivery on track across multiple workstreams. * Lead end-to-end delivery across technical squads, ensuring milestones are hit and risks stay low * Coordinate engineers, architects, and product teams to keep delivery smooth and predictable * Translate technical detail into clear plans, roadmaps, and stakeholder updates * Unblock teams, manage dependencies, and ensure technical decisions support long-term strategy * Own delivery governance in a high-trust, security-focused environment * Proven experience delivering complex technology projects
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        FEATURED

        Senior Automation QA - Remote

        Exposed Solutions
        Central London (W1)
        From £40,000 to £45,000 per annum
        SeniorAutomationQAAIStartup(UK)|BuildQAfromScratch - OurclientisanambitiousAIstartupbuildingcutting-edgeproducts,andwerelookingforaSeniorAutomationQAwhocanowntestautomationfromdayone. IfyoulovegreenfieldchallengesandwanttoshapetheentireQAfunctioninafast-growingtechcompany,thisisforyou. Whatyoulldo * BuildourautomationframeworksandQAprocessesfromscratch * Leadteststrategyacrossbackend,frontend&APIs * CreateautomatedtestsuitesintegratedintoCI/CD * CollaboratewithEngineering&MLteamstoensurehigh-qualityreleases * Championqualityacrosstheorganisation - Whatwerelookingfor * 5+yearsQAexperiencewithastrongautomationfocus * Provenexperiencesettinguptestautomationinastartuporgreenfieldenvironment * StrongskillswithPython/JavaScripttestframeworks * ExperiencewithPlaywright,Cypressorsimilar * Cloud&CI/CDexposure(AWS/GCP/Azure,GitHubActions,GitLabCI) * Bonus:experiencetestingAI/ML
        SeniorAutomationQAAIStartup(UK)|BuildQAfromScratch - OurclientisanambitiousAIstartupbuildingcutting-edgeproducts,andwerelookingforaSeniorAutomationQAwhocanowntestautomationfromdayone. IfyoulovegreenfieldchallengesandwanttoshapetheentireQAfunctioninafast-growingtechcompany,thisisforyou. Whatyoulldo * BuildourautomationframeworksandQAprocessesfromscratch * Leadteststrategyacrossbackend,frontend&APIs * CreateautomatedtestsuitesintegratedintoCI/CD * CollaboratewithEngineering&MLteamstoensurehigh-qualityreleases * Championqualityacrosstheorganisation - Whatwerelookingfor * 5+yearsQAexperiencewithastrongautomationfocus * Provenexperiencesettinguptestautomationinastartuporgreenfieldenvironment * StrongskillswithPython/JavaScripttestframeworks * ExperiencewithPlaywright,Cypressorsimilar * Cloud&CI/CDexposure(AWS/GCP/Azure,GitHubActions,GitLabCI) * Bonus:experiencetestingAI/ML
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        Senior Full Stack PHP Developer (Remote)

        Digital Appointments
        Bloomsbury, Central London (WC1), WC1N 3AX
        From £50,000 to £60,000 per annum
        A fantastic, fully remote opportunity! Are you an experienced Full Stack PHP Developer with React? This well-established SaaS platform used by businesses across the UK prides itself on providing a stable, reliable, and feature-rich service to its large portfolio of clients. They foster a collaborative, supportive, and fully remote working environment where talented developers can really thrive. We are seeking a talented and experienced Full Stack PHP Developer to join their dedicated development team. You will play a crucial role in the ongoing development, maintenance, and enhancement of their core SaaS platform. Working across the full stack, you'll be involved in building new features, optimising existing code, and ensuring the scalability and reliability of their application. This is an excellent opportunity to contribute significantly to a great product within a
        A fantastic, fully remote opportunity! Are you an experienced Full Stack PHP Developer with React? This well-established SaaS platform used by businesses across the UK prides itself on providing a stable, reliable, and feature-rich service to its large portfolio of clients. They foster a collaborative, supportive, and fully remote working environment where talented developers can really thrive. We are seeking a talented and experienced Full Stack PHP Developer to join their dedicated development team. You will play a crucial role in the ongoing development, maintenance, and enhancement of their core SaaS platform. Working across the full stack, you'll be involved in building new features, optimising existing code, and ensuring the scalability and reliability of their application. This is an excellent opportunity to contribute significantly to a great product within a
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        ££60,000 - £110,000 GBP + Package - Hybrid WORKING - Location: London;Cheltenham;Bournemouth, Central London, Greater London - United Kingdom Type: Permanent - Location: Cheltenham, London, Bournemouth - Consultative travel required - Clearance: Must be a sole British National, elligable or holding SC or DV - Salary: £60,000 - £110,000 (Depandant on grade) A leading digital consultancy is looking for a Senior Data Scientist to lead and deliver cutting-edge AI/ML solutions for clients across UK defence and public sector. This is a hands-on, strategic position for someone who thrives at the intersection of data science, client delivery, and software product design. What You'll Be Doing * Lead technical project delivery and shape data science strategy across multiple client engagements * Define and implement bespoke machine learning algorithms to solve real-world defence
        ££60,000 - £110,000 GBP + Package - Hybrid WORKING - Location: London;Cheltenham;Bournemouth, Central London, Greater London - United Kingdom Type: Permanent - Location: Cheltenham, London, Bournemouth - Consultative travel required - Clearance: Must be a sole British National, elligable or holding SC or DV - Salary: £60,000 - £110,000 (Depandant on grade) A leading digital consultancy is looking for a Senior Data Scientist to lead and deliver cutting-edge AI/ML solutions for clients across UK defence and public sector. This is a hands-on, strategic position for someone who thrives at the intersection of data science, client delivery, and software product design. What You'll Be Doing * Lead technical project delivery and shape data science strategy across multiple client engagements * Define and implement bespoke machine learning algorithms to solve real-world defence
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        PREMIUM
        Fuse are working with a global FTSE 250 organisation to recruti a Full Stack Developer into the team. You would play a key role in building and optimising cloud-based applications on Microsoft Azure. This is an exciting opportunity to work on transformative projects across the EME region. * Design, develop and maintain .NET Core and ASP.NET applications on Azure * Build and integrate RESTful APIs and microservices * Collaborate with architects and stakeholders to deliver scalable, secure solutions * Implement DevOps practices with CI/CD pipelines using Azure DevOps * Ensure performance, security and code quality standards are met * 5+ years' experience in .NET development * Strong knowledge of Azure services and cloud architecture * Proficiency with DevOps tools (Azure DevOps, Git) * Solid understanding of APIs, SQL/NoSQL databases and Agile methodologies
        Fuse are working with a global FTSE 250 organisation to recruti a Full Stack Developer into the team. You would play a key role in building and optimising cloud-based applications on Microsoft Azure. This is an exciting opportunity to work on transformative projects across the EME region. * Design, develop and maintain .NET Core and ASP.NET applications on Azure * Build and integrate RESTful APIs and microservices * Collaborate with architects and stakeholders to deliver scalable, secure solutions * Implement DevOps practices with CI/CD pipelines using Azure DevOps * Ensure performance, security and code quality standards are met * 5+ years' experience in .NET development * Strong knowledge of Azure services and cloud architecture * Proficiency with DevOps tools (Azure DevOps, Git) * Solid understanding of APIs, SQL/NoSQL databases and Agile methodologies
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        FEATURED
        Rate - £500 / £525 Outside IR35 - Duration - 3 months - Location - Fully remote - Sanderson is currently working with an organisation who require a D365 Business Central/Shopify Support Engineer to bridge ERP and e-commerce platforms, ensuring seamless integration, smooth operations and excellent support for business users. The ideal candidate will have strong technical expertise, problem solving skills and a customer focused mindset. Key Responsibilities * Provide technical support for Microsoft Dynamics 365 Business Central and Shopify platforms * Troubleshoot and resolve issues related to system integrations, data synchronisation and workflows * Liaise with support partners for issues that require 2nd/ 3rd line support and coordinate activities between partners where required * Collaborate with internal teams to analyse business requirements and implement solutions
        Rate - £500 / £525 Outside IR35 - Duration - 3 months - Location - Fully remote - Sanderson is currently working with an organisation who require a D365 Business Central/Shopify Support Engineer to bridge ERP and e-commerce platforms, ensuring seamless integration, smooth operations and excellent support for business users. The ideal candidate will have strong technical expertise, problem solving skills and a customer focused mindset. Key Responsibilities * Provide technical support for Microsoft Dynamics 365 Business Central and Shopify platforms * Troubleshoot and resolve issues related to system integrations, data synchronisation and workflows * Liaise with support partners for issues that require 2nd/ 3rd line support and coordinate activities between partners where required * Collaborate with internal teams to analyse business requirements and implement solutions
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        FEATURED

        Product Owner - Shopify

        INFUSED SOLUTIONS LIMITED
        London
        £400 - £500 per day + market rate
        We are seeking a skilled and motivated Product Owner with hands-on experience in Shopify and e-commerce to join a rapidly expanding client. This is an exciting opportunity for a driven professional to take ownership of our platforms and contribute to the growth and innovation of our digital business. Key Responsibilities * Lead the development and enhancement of Shopify-based e-commerce solutions. * Define and prioritise product features, ensuring alignment with business goals and customer needs. * Collaborate with cross-functional teams, including development, design, marketing, and sales, to deliver best-in-class digital experiences. * Analyse market trends and customer feedback to inform product strategy and roadmap. * Oversee the product lifecycle, from inception through launch and ongoing optimisation.
        We are seeking a skilled and motivated Product Owner with hands-on experience in Shopify and e-commerce to join a rapidly expanding client. This is an exciting opportunity for a driven professional to take ownership of our platforms and contribute to the growth and innovation of our digital business. Key Responsibilities * Lead the development and enhancement of Shopify-based e-commerce solutions. * Define and prioritise product features, ensuring alignment with business goals and customer needs. * Collaborate with cross-functional teams, including development, design, marketing, and sales, to deliver best-in-class digital experiences. * Analyse market trends and customer feedback to inform product strategy and roadmap. * Oversee the product lifecycle, from inception through launch and ongoing optimisation.
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        What is the average salary for API in London?

        Average salary per year
        £72,499

        The average salary for a API in London is £72,499. API in London salaries range from £62,499 to £87,499.

        Frequently Asked Questions

        How many contract API jobs are there in London?
        There are 170 contract API jobs within 20 miles of London available on CWJobs right now.

        Where in London are these contract jobs?
        You can find contract jobs in City of London, Central London, West End.

        What other similar jobs are there to contract API jobs in London?
        As well as contract API jobs in London, you can find contract Qa Automation, Quality Assurance, QA Analyst, amongst many others.