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        350 Contract API jobs in London + 20 miles

        Maximo Specialist - 12 Month FTC

        Affinity Water Limited
        Hatfield (AL10)
        £55,000 per annum
        Affinity Water is excited to be growing our Maximo Team, and we are looking for someone who is passionate, curious and ready to make an impact to join us as a Maximo Specialist on a 12 month fixed Term Contract. As a Maximo Specialist, you will be seen as one of the companys resident experts in how Maximo works. In conjunction with IT and business change teams you will be responsible for requirements definition, analysis, and design of Maximo enhancements, automation scripts and integrations. * ESRI GIS Mapping solution * Hi-Affinity CMS * Aurora Streetworks Management system * Waternet Leakage Monitoring system * Oracle Fusion Finance and Procurement system * FLS Visitour Scheduling There is an ambitious road map for the next few years which includes regulatory change, enhancements, small change, and an upgrade to MAS to name a few.
        Affinity Water is excited to be growing our Maximo Team, and we are looking for someone who is passionate, curious and ready to make an impact to join us as a Maximo Specialist on a 12 month fixed Term Contract. As a Maximo Specialist, you will be seen as one of the companys resident experts in how Maximo works. In conjunction with IT and business change teams you will be responsible for requirements definition, analysis, and design of Maximo enhancements, automation scripts and integrations. * ESRI GIS Mapping solution * Hi-Affinity CMS * Aurora Streetworks Management system * Waternet Leakage Monitoring system * Oracle Fusion Finance and Procurement system * FLS Visitour Scheduling There is an ambitious road map for the next few years which includes regulatory change, enhancements, small change, and an upgrade to MAS to name a few.
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        FEATURED
        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
        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
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        Salesforce Tech Lead

        Stackstudio Digital Ltd.
        Windsor (SL4)
        From £450 to £475 per day
        Job Title:Salesforce Tech Lead Location:Windsor, UK (1 day a week) Job Purpose and Primary Objectives:Salesforce Tech Lead Key Responsibilities (Please specify if the position is an individual one or part of a team) * Participate in refining and scoping upcoming sprint work. * Assist solution architects with technical design and breaking down complex tasks. * Accountable for timely delivery of assigned tickets, meeting acceptance criteria. * Conduct spikes/investigations into innovative technologies for future project viability. * Ensure teammates' work meets code quality standards through reviews. * Coordinate with other teams for integrations, ensuring alignment of tasks and APIs. * Work with the QA team to investigate and resolve issues. * Mentor junior team members, providing assistance with tasks and problem-solving.
        Job Title:Salesforce Tech Lead Location:Windsor, UK (1 day a week) Job Purpose and Primary Objectives:Salesforce Tech Lead Key Responsibilities (Please specify if the position is an individual one or part of a team) * Participate in refining and scoping upcoming sprint work. * Assist solution architects with technical design and breaking down complex tasks. * Accountable for timely delivery of assigned tickets, meeting acceptance criteria. * Conduct spikes/investigations into innovative technologies for future project viability. * Ensure teammates' work meets code quality standards through reviews. * Coordinate with other teams for integrations, ensuring alignment of tasks and APIs. * Work with the QA team to investigate and resolve issues. * Mentor junior team members, providing assistance with tasks and problem-solving.
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        Role/Job Title: PaaS Technical Architect (Azure PaaS) Work Location: London, UK Mode of Working Hybrid/Office Based: Hybrid If Hybrid, how many days are required in office? 3 The Role The associate needs to play a key role in modernizing critical service domains such as scheduling, delivery, and customer engagement by designing scalable, cloud-native solutions on Microsoft Azure. Operating in a rapidly evolving logistics sector, they will leverage cutting-edge Azure PaaS technologies (App Services, Functions, API Management, etc.) to drive efficiency, reliability, and innovation across high-impact national projects. You would be working for the largest postal/parcels services provider in the UK. * Design and lead end-to-end Azure PaaS architectures for application migration and modernization.
        Role/Job Title: PaaS Technical Architect (Azure PaaS) Work Location: London, UK Mode of Working Hybrid/Office Based: Hybrid If Hybrid, how many days are required in office? 3 The Role The associate needs to play a key role in modernizing critical service domains such as scheduling, delivery, and customer engagement by designing scalable, cloud-native solutions on Microsoft Azure. Operating in a rapidly evolving logistics sector, they will leverage cutting-edge Azure PaaS technologies (App Services, Functions, API Management, etc.) to drive efficiency, reliability, and innovation across high-impact national projects. You would be working for the largest postal/parcels services provider in the UK. * Design and lead end-to-end Azure PaaS architectures for application migration and modernization.
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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

        Gen AI Engineer

        AVENSYS CONSULTING (UK) LTD
        London
        From £450 to £500 per day
        Role: Gen AI Engineer Location: Remote Contract: 06 Months Rate: 450-500 GBP Per Day Inside IR35 MAX The Gen AI Engineer will be a specialized type of artificial intelligence professional, focused on designing, developing & implementing generative AI models and algorithms. Working collaboratively with the team to ensure project deadlines are met. * Design, prototype, and deploy Generative AI models (LLMs, Transformers, Diffusion models) for enterprise use cases. * Build and fine-tune LLM-based applications (chatbots, summarization, document Q&A, report generation, code assistants, etc.). * Apply prompt engineering, RAG (Retrieval-Augmented Generation), and context-aware pipelines to ensure accuracy and relevance. * Integrate AI models with enterprise systems, APIs, and data stores using Python, Java, or Node.js backends.
        Role: Gen AI Engineer Location: Remote Contract: 06 Months Rate: 450-500 GBP Per Day Inside IR35 MAX The Gen AI Engineer will be a specialized type of artificial intelligence professional, focused on designing, developing & implementing generative AI models and algorithms. Working collaboratively with the team to ensure project deadlines are met. * Design, prototype, and deploy Generative AI models (LLMs, Transformers, Diffusion models) for enterprise use cases. * Build and fine-tune LLM-based applications (chatbots, summarization, document Q&A, report generation, code assistants, etc.). * Apply prompt engineering, RAG (Retrieval-Augmented Generation), and context-aware pipelines to ensure accuracy and relevance. * Integrate AI models with enterprise systems, APIs, and data stores using Python, Java, or Node.js backends.
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        Role: ServiceNow Technical Architect (Look for immediate joiners) Contract duration: 6 months Location: London, UK (Hybrid for 1-2days/week) We are seeking an experienced Technical Architect ServiceNow to lead the design, development, and implementation of enterprise-scale ServiceNow solutions. This role will be responsible for defining architectural standards, ensuring platform scalability, and guiding technical teams in delivering high-quality ITSM, ITOM, ITBM, and custom applications on the ServiceNow platform. The ideal candidate will combine deep technical expertise with strong leadership and stakeholder management skills. Key Responsibilities * Architecture & Design o Define and maintain ServiceNow architectural standards, frameworks, and best practices. o Design scalable, secure, and high-performing ServiceNow solutions aligned with business needs.
        Role: ServiceNow Technical Architect (Look for immediate joiners) Contract duration: 6 months Location: London, UK (Hybrid for 1-2days/week) We are seeking an experienced Technical Architect ServiceNow to lead the design, development, and implementation of enterprise-scale ServiceNow solutions. This role will be responsible for defining architectural standards, ensuring platform scalability, and guiding technical teams in delivering high-quality ITSM, ITOM, ITBM, and custom applications on the ServiceNow platform. The ideal candidate will combine deep technical expertise with strong leadership and stakeholder management skills. Key Responsibilities * Architecture & Design o Define and maintain ServiceNow architectural standards, frameworks, and best practices. o Design scalable, secure, and high-performing ServiceNow solutions aligned with business needs.
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        12 months Remote £478 per day inside IR35 - Umbrella only Active SC security clearance required We are seeing a skilled DevOps engineer to design, implement and maintain the infrastructure, tools and processes that enable rapid development and high-quality software development. * Kafka * Java * docker * Spring (framework * boot, Data) * K8 * Helm * React * Typescript/JavaScript * Postgres * Open Search/ElasticSearch * Playwright * Wiremock * Grafana * Prometheus * Dynatrace * Git * NodeJS * Rest API All profiles will be reviewed against the required skills and experience. Due to the high number of applications we will only be able to respond to successful applicants in the first instance. We thank you for your interest and the time taken to apply!
        12 months Remote £478 per day inside IR35 - Umbrella only Active SC security clearance required We are seeing a skilled DevOps engineer to design, implement and maintain the infrastructure, tools and processes that enable rapid development and high-quality software development. * Kafka * Java * docker * Spring (framework * boot, Data) * K8 * Helm * React * Typescript/JavaScript * Postgres * Open Search/ElasticSearch * Playwright * Wiremock * Grafana * Prometheus * Dynatrace * Git * NodeJS * Rest API All profiles will be reviewed against the required skills and experience. Due to the high number of applications we will only be able to respond to successful applicants in the first instance. We thank you for your interest and the time taken to apply!
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        FEATURED
        An Orchestration-focused Architect for anOrchestration Assessment. The role involves evaluatingCiena Blue PlanetandServiceNow Orchestrationplatforms, developingRFx (RFI/RFP)material, and supporting vendor selection. The ideal candidate combines strong technical understanding of orchestration platforms with an architectural mindsetable to assess capabilities, integration patterns, use cases, migration paths, and commercial impacts. Key Responsibilities * Evaluate orchestration platforms (Blue Planet & ServiceNow). * Develop RFx documentation and assessment criteria. * Analyse technical capabilities, integrations, and API readiness. * Assess migration approaches from existing tools. * Compare commercial models and operational impacts. * Produce concise architecture summaries and recommendations. Required Skills
        An Orchestration-focused Architect for anOrchestration Assessment. The role involves evaluatingCiena Blue PlanetandServiceNow Orchestrationplatforms, developingRFx (RFI/RFP)material, and supporting vendor selection. The ideal candidate combines strong technical understanding of orchestration platforms with an architectural mindsetable to assess capabilities, integration patterns, use cases, migration paths, and commercial impacts. Key Responsibilities * Evaluate orchestration platforms (Blue Planet & ServiceNow). * Develop RFx documentation and assessment criteria. * Analyse technical capabilities, integrations, and API readiness. * Assess migration approaches from existing tools. * Compare commercial models and operational impacts. * Produce concise architecture summaries and recommendations. Required Skills
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        Full Stack Developer

        167 Solutions Ltd
        North West London (NW1)
        From £200 to £300 per annum
        Contract Full Stack Developer Duration: 4 Weeks Engagement: Fixed Price Project Location: Remote (UK-based preferred) About the Project We are looking for a strong Full Stack Developer to deliver a short-term project involving a static website build, API scraping, and structured JSON output. The ideal contractor will be able to take a clear brief, work autonomously, and deliver a high-quality, production-ready solution within four weeks. Key Responsibilities * Build a clean, fast static website using modern frameworks (Next.js, React, or equivalent) * Develop API scraping scripts to extract structured data reliably * Create, clean, and deliver JSON outputs for internal use * Implement basic automation and scheduling where needed * Ensure security, performance, and accuracy across all data workflows Technical Skills Required
        Contract Full Stack Developer Duration: 4 Weeks Engagement: Fixed Price Project Location: Remote (UK-based preferred) About the Project We are looking for a strong Full Stack Developer to deliver a short-term project involving a static website build, API scraping, and structured JSON output. The ideal contractor will be able to take a clear brief, work autonomously, and deliver a high-quality, production-ready solution within four weeks. Key Responsibilities * Build a clean, fast static website using modern frameworks (Next.js, React, or equivalent) * Develop API scraping scripts to extract structured data reliably * Create, clean, and deliver JSON outputs for internal use * Implement basic automation and scheduling where needed * Ensure security, performance, and accuracy across all data workflows Technical Skills Required
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        Salesforce Solution Architect

        167 Solutions Ltd
        North West London (NW10)
        From £600 to £750 per day
        Global Organisation | Remote UK with occasional travel 12 Month Contract | Outside IR35 | Immediate Start Day Rate: £600-£750 167 Solutions is partnering with a global enterprise seeking an experienced Salesforce Solution Architect to lead the design, governance and optimisation of their Salesforce estate. This is a strategic contract assignment with a focus on stabilising the platform, reducing legacy technical debt and improving data quality across Sales Cloud and Service Cloud. Role Overview You will define and own end to end Salesforce solutions, provide architectural assurance and embed strong governance across the organisation. A key part of the role is supporting the development of a Salesforce Centre of Excellence, while addressing legacy debt, data duplication and long term scalability. Key Responsibilities
        Global Organisation | Remote UK with occasional travel 12 Month Contract | Outside IR35 | Immediate Start Day Rate: £600-£750 167 Solutions is partnering with a global enterprise seeking an experienced Salesforce Solution Architect to lead the design, governance and optimisation of their Salesforce estate. This is a strategic contract assignment with a focus on stabilising the platform, reducing legacy technical debt and improving data quality across Sales Cloud and Service Cloud. Role Overview You will define and own end to end Salesforce solutions, provide architectural assurance and embed strong governance across the organisation. A key part of the role is supporting the development of a Salesforce Centre of Excellence, while addressing legacy debt, data duplication and long term scalability. Key Responsibilities
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        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
        Role: C++ Developer Type: Contract (6 Months) Location: UK (Fully Remote) Technical Essentials (Must Haves) * Senior-level C++ expertise with many years of experience. * Strong debugging skills and a proactive test mindset-you will spend significant time triaging issues and mastering system design. Core Developer Traits * Enjoys context shifting and jumping between different projects and domains rapidly. * Overcommunicator who ensures strict alignment to prevent wasted time and effort. * Excellent communication skills-ability to simplify highly complex technical domain information for stakeholders. * A collaborative team player who actively leverages the knowledge of peers. Bonus Experience (Highly Desirable) * Familiarity with playback and orchestration APIs. * Experience in consumer multimedia software (e.g., Netflix, Amazon).
        Role: C++ Developer Type: Contract (6 Months) Location: UK (Fully Remote) Technical Essentials (Must Haves) * Senior-level C++ expertise with many years of experience. * Strong debugging skills and a proactive test mindset-you will spend significant time triaging issues and mastering system design. Core Developer Traits * Enjoys context shifting and jumping between different projects and domains rapidly. * Overcommunicator who ensures strict alignment to prevent wasted time and effort. * Excellent communication skills-ability to simplify highly complex technical domain information for stakeholders. * A collaborative team player who actively leverages the knowledge of peers. Bonus Experience (Highly Desirable) * Familiarity with playback and orchestration APIs. * Experience in consumer multimedia software (e.g., Netflix, Amazon).
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        FEATURED

        Solution Architect - (HCM) SC Cleared

        Henderson Scott
        London
        £700 - £800 per day + Umbrella rate (inside IR35)
        Solution Architect - Active SC Cleared Location: Hybrid (20% in London or Glasgow) | Engagement: Contract - Inside IR35 | Duration: Initial 6 Months | Clearance: SC Clearance Essential Our client requires a high-calibre Solution Architect with extensive HCM (Workday / Oracle HCM / Successfactors) experince to establish and deliver the integrations sub-workstream from the ground up. This role is critical for technical readiness, involving the design of integration patterns that will connect the new HCM with crucial internal and external systems across HR, Finance, and Payroll. The Role: End-to-End Integration Strategy & Delivery You will report directly to the Senior Technical Delivery Manager, acting as the primary authority for all Workday integration design and delivery.
        Solution Architect - Active SC Cleared Location: Hybrid (20% in London or Glasgow) | Engagement: Contract - Inside IR35 | Duration: Initial 6 Months | Clearance: SC Clearance Essential Our client requires a high-calibre Solution Architect with extensive HCM (Workday / Oracle HCM / Successfactors) experince to establish and deliver the integrations sub-workstream from the ground up. This role is critical for technical readiness, involving the design of integration patterns that will connect the new HCM with crucial internal and external systems across HR, Finance, and Payroll. The Role: End-to-End Integration Strategy & Delivery You will report directly to the Senior Technical Delivery Manager, acting as the primary authority for all Workday integration design and delivery.
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        FEATURED
        Location: Client sites, remote, or hybrid, depending on project need. Contract Type: Contract About Us Triad Group Plc is an award-winning digital, data, and solutions consultancy with over 35 years' experience primarily serving the UK public sector and central government. We deliver high-quality solutions that make a real difference to users, citizens and consumers. At Triad, collaboration thrives, knowledge is shared, and every voice matters. Our close-knit, supportive culture ensures you're valued from day one. Whether working with cutting-edge tech or shaping strategy for national-scale projects, you'll be trusted, challenged, and empowered to grow. We nurture learning through communities of practice and encourage creativity, autonomy, and innovation.
        Location: Client sites, remote, or hybrid, depending on project need. Contract Type: Contract About Us Triad Group Plc is an award-winning digital, data, and solutions consultancy with over 35 years' experience primarily serving the UK public sector and central government. We deliver high-quality solutions that make a real difference to users, citizens and consumers. At Triad, collaboration thrives, knowledge is shared, and every voice matters. Our close-knit, supportive culture ensures you're valued from day one. Whether working with cutting-edge tech or shaping strategy for national-scale projects, you'll be trusted, challenged, and empowered to grow. We nurture learning through communities of practice and encourage creativity, autonomy, and innovation.
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        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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        We are searching for one of our key clients for an Azure Cosmos DB Admin & Developer to drive the build-out of cloud-native, high-performance financial applications. This role sits at the sharp end of modern banking engineering, owning the design, optimisation, and operational excellence of Cosmos DB across mission-critical workloads. You will shape partitioning models, indexing strategies, consistency models, and performance tuning while building reusable frameworks in C#/.NET or Node.js. Expect close collaboration with architects and DevOps to embed Cosmos DB into microservices, backed by robust CI/CD through Azure DevOps. This position offers genuine impact in a regulated, high-velocity technology environment. Azure Cosmos DB (SQL/Mongo API), NoSQL modelling C#/.NET or Node.js Azure Functions, App Services, AKS, Logic Apps CI/CD with Azure DevOps
        We are searching for one of our key clients for an Azure Cosmos DB Admin & Developer to drive the build-out of cloud-native, high-performance financial applications. This role sits at the sharp end of modern banking engineering, owning the design, optimisation, and operational excellence of Cosmos DB across mission-critical workloads. You will shape partitioning models, indexing strategies, consistency models, and performance tuning while building reusable frameworks in C#/.NET or Node.js. Expect close collaboration with architects and DevOps to embed Cosmos DB into microservices, backed by robust CI/CD through Azure DevOps. This position offers genuine impact in a regulated, high-velocity technology environment. Azure Cosmos DB (SQL/Mongo API), NoSQL modelling C#/.NET or Node.js Azure Functions, App Services, AKS, Logic Apps CI/CD with Azure DevOps
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        TM Forum SOM Architect

        Stackstudio Digital Ltd.
        Windsor (SL4)
        From £425 to £450 per day
        Job Description Job Title:TM Forum SOM Architect Windsor, UKHybrid (visit to office once every week) Own the TMF-aligned SOM architecture across order capture, decomposition, orchestration, lifecycle, and fulfilment integration. Apply TMF 641/640/638 patterns consistently across all product lines. Maintain SOM architectural guardrails to ensure coherence across squads. Partner closely with the COM Lead and Salesforce Programme Architect to maintain COM SOM Fulfilment cohesion. Ensure SOM consumes COM outputs correctly, without premature assetisation or over-decomposition. Align EPC COM SOM Fulfilment flows to ensure consistent modelling. Define orchestration logic across multi-product, multi-step journeys. Design integrations with billing, CRM, field services, scheduling, inventory, and partners.
        Job Description Job Title:TM Forum SOM Architect Windsor, UKHybrid (visit to office once every week) Own the TMF-aligned SOM architecture across order capture, decomposition, orchestration, lifecycle, and fulfilment integration. Apply TMF 641/640/638 patterns consistently across all product lines. Maintain SOM architectural guardrails to ensure coherence across squads. Partner closely with the COM Lead and Salesforce Programme Architect to maintain COM SOM Fulfilment cohesion. Ensure SOM consumes COM outputs correctly, without premature assetisation or over-decomposition. Align EPC COM SOM Fulfilment flows to ensure consistent modelling. Define orchestration logic across multi-product, multi-step journeys. Design integrations with billing, CRM, field services, scheduling, inventory, and partners.
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        At Goodnotes, we believe that every individual holds untapped potential waiting to be unleashed. By reimagining the way we interact with information, we're merging human creativity with the breakthrough capabilities of AI. Our renewed vision and mission drive us to create the best medium for human and AI collaboration, empowering users to explore new dimensions of productivity, creativity, and learning. Join us on this journey as we transform digital note-taking into an inspiring and innovative experience. Dream big - Be visionary, strategic, and open to innovation Build great things - Work in service of our users, always improving and pushing higher Operate as an owner - Propel company success and impact with an entrepreneurial mindset Win like a sports team - Be trusting and collaborative while empowering others
        At Goodnotes, we believe that every individual holds untapped potential waiting to be unleashed. By reimagining the way we interact with information, we're merging human creativity with the breakthrough capabilities of AI. Our renewed vision and mission drive us to create the best medium for human and AI collaboration, empowering users to explore new dimensions of productivity, creativity, and learning. Join us on this journey as we transform digital note-taking into an inspiring and innovative experience. Dream big - Be visionary, strategic, and open to innovation Build great things - Work in service of our users, always improving and pushing higher Operate as an owner - Propel company success and impact with an entrepreneurial mindset Win like a sports team - Be trusting and collaborative while empowering others
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        Position: Backend Engineer Location: Remote (UK) Work Type: Contract Join our team to build the backbone of a global music streaming platform! We're looking for a JAVA Backend Engineer who loves coding, solving problems, and delivering features that reach millions of users. * Build scalable Java & SpringBoot microservices. * Develop APIs and backend tools for engineers across the company. * Use TDD, CI/CD, Docker, Kubernetes, Jenkins, and GCP services. * Work with alternate languages like Python, Scala, Golang, or Node.js for backend tasks. * Collaborate in an Agile environment with cross-functional teams. * Strong backend development skills (Java and microservices). * Experience with microservices, TDD, CI/CD, Docker & Kubernetes, and cloud platforms (GCP preferred). * Familiarity with and one of Python, Golang, Scala or Node.js is a plus.
        Position: Backend Engineer Location: Remote (UK) Work Type: Contract Join our team to build the backbone of a global music streaming platform! We're looking for a JAVA Backend Engineer who loves coding, solving problems, and delivering features that reach millions of users. * Build scalable Java & SpringBoot microservices. * Develop APIs and backend tools for engineers across the company. * Use TDD, CI/CD, Docker, Kubernetes, Jenkins, and GCP services. * Work with alternate languages like Python, Scala, Golang, or Node.js for backend tasks. * Collaborate in an Agile environment with cross-functional teams. * Strong backend development skills (Java and microservices). * Experience with microservices, TDD, CI/CD, Docker & Kubernetes, and cloud platforms (GCP preferred). * Familiarity with and one of Python, Golang, Scala or Node.js is a plus.
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        FEATURED
        We are searching for one of our key clients for a Collibra Technical SME to drive metadata management, data lineage, and governance capability across a high scale enterprise environment. You will shape the Collibra operating model, engineer integrations, and ensure the platform becomes the backbone of trusted data across the business. Key skills required * Collibra model design, domains, communities, workflows, BPMN, Groovy, Java APIs * Technical lineage integration across ETL, databases, BI and cloud ecosystems * Collibra Edge deployment and metadata harvesting * API and SDK automation, metadata ingestion and catalogue enrichment * Strong SQL and familiarity with enterprise databases * ETL, ELT and BI tooling exposure * Cloud experience across AWS, GCP or Azure Please apply with an up to date CV that clearly matches the requirements.
        We are searching for one of our key clients for a Collibra Technical SME to drive metadata management, data lineage, and governance capability across a high scale enterprise environment. You will shape the Collibra operating model, engineer integrations, and ensure the platform becomes the backbone of trusted data across the business. Key skills required * Collibra model design, domains, communities, workflows, BPMN, Groovy, Java APIs * Technical lineage integration across ETL, databases, BI and cloud ecosystems * Collibra Edge deployment and metadata harvesting * API and SDK automation, metadata ingestion and catalogue enrichment * Strong SQL and familiarity with enterprise databases * ETL, ELT and BI tooling exposure * Cloud experience across AWS, GCP or Azure Please apply with an up to date CV that clearly matches the requirements.
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        Senior Fullstack Developer

        Hays
        London
        £500.0 - £550.0 per day + up to £550 pd (Inside IR35)
        Senior Full Stack Developer - Active SC, Java, React Up to £550 per day (Inside IR35) London / Remote 12 months My client is an instantly recognisable consultancy who urgently requires a Senior Full Stack Developer with Active SC, to join a business-critical programme. * Proven experience working as a Full Stack Developer within the public sector * Active Security Clearance (SC) * Strong proficiency in Java and Spring Boot for Backend development * Solid experience with React and Next.js for Frontend development * Hands-on experience working with Cloud environments (AWS) * Experience implementing CI/CD pipelines and familiarity with Docker / Kubernetes * Skilled in API development and microservices architecture * Strong technical and leadership capabilities * Immediate availability * Previous experience delivering greenfield development
        Senior Full Stack Developer - Active SC, Java, React Up to £550 per day (Inside IR35) London / Remote 12 months My client is an instantly recognisable consultancy who urgently requires a Senior Full Stack Developer with Active SC, to join a business-critical programme. * Proven experience working as a Full Stack Developer within the public sector * Active Security Clearance (SC) * Strong proficiency in Java and Spring Boot for Backend development * Solid experience with React and Next.js for Frontend development * Hands-on experience working with Cloud environments (AWS) * Experience implementing CI/CD pipelines and familiarity with Docker / Kubernetes * Skilled in API development and microservices architecture * Strong technical and leadership capabilities * Immediate availability * Previous experience delivering greenfield development
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        .NET Developer

        Rise Technical Recruitment Limited
        London
        £60000.00 - £70000.00 per annum
        .NET Backend Developer London 3-6 month FTC £60,000 to £70,000 Pro Rata + Benefits Excellent opportunity for an experienced .NET Backend Developer to join a rapidly growing business in London, where you will play a key role in shaping the backend systems, API architecture, and cloud infrastructure that support the company's technology roadmap. They already work across a range of platforms and services and now require a skilled Backend Developer with strong experience in C#, ASP.NET, SQL Server, and AWS in order to support their ongoing growth and technical evolution. In this role you will collaborate closely with engineering teams and business stakeholders to design and build backend services, APIs, and cloud hosted systems. You will work with technologies such as C#, ASP.NET Core, RESTful APIs, SQL Server, and AWS services.
        .NET Backend Developer London 3-6 month FTC £60,000 to £70,000 Pro Rata + Benefits Excellent opportunity for an experienced .NET Backend Developer to join a rapidly growing business in London, where you will play a key role in shaping the backend systems, API architecture, and cloud infrastructure that support the company's technology roadmap. They already work across a range of platforms and services and now require a skilled Backend Developer with strong experience in C#, ASP.NET, SQL Server, and AWS in order to support their ongoing growth and technical evolution. In this role you will collaborate closely with engineering teams and business stakeholders to design and build backend services, APIs, and cloud hosted systems. You will work with technologies such as C#, ASP.NET Core, RESTful APIs, SQL Server, and AWS services.
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        PREMIUM

        .NET Developer

        Rise Technical
        London
        £60000.00 - £70000.00 per annum
        .NET Backend Developer London 3-6 month FTC £60,000 to £70,000 Pro Rata + Benefits Excellent opportunity for an experienced .NET Backend Developer to join a rapidly growing business in London, where you will play a key role in shaping the backend systems, API architecture, and cloud infrastructure that support the company's technology roadmap. They already work across a range of platforms and services and now require a skilled Backend Developer with strong experience in C#, ASP.NET, SQL Server, and AWS in order to support their ongoing growth and technical evolution. In this role you will collaborate closely with engineering teams and business stakeholders to design and build backend services, APIs, and cloud hosted systems. You will work with technologies such as C#, ASP.NET Core, RESTful APIs, SQL Server, and AWS services.
        .NET Backend Developer London 3-6 month FTC £60,000 to £70,000 Pro Rata + Benefits Excellent opportunity for an experienced .NET Backend Developer to join a rapidly growing business in London, where you will play a key role in shaping the backend systems, API architecture, and cloud infrastructure that support the company's technology roadmap. They already work across a range of platforms and services and now require a skilled Backend Developer with strong experience in C#, ASP.NET, SQL Server, and AWS in order to support their ongoing growth and technical evolution. In this role you will collaborate closely with engineering teams and business stakeholders to design and build backend services, APIs, and cloud hosted systems. You will work with technologies such as C#, ASP.NET Core, RESTful APIs, SQL Server, and AWS services.
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        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.
        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.
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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 350 contract API jobs within 20 miles of London available on Jobsite 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 IT, Software Development, Management, amongst many others.