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        357 Part Time API jobs in London + 20 miles

        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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        Azure Cosmos DB Admin and Developer

        Vallum Associates Limited
        The City, City of London (EC4), EC4M
        £500 per hour
        Job Title:Azure Cosmos DB Admin and Developer Location: Hybrid, London UK (3days/Week Onsite) Duration: 6months+ Contract Inside IR35 The Role The DB Admin and Developer will play a critical role in designing and developing scalable, secure, and high-performance applications tailored for banking and financial services. This role involves architecting cloud-native solutions using Azure Cosmos DB (SQL API and Mongo API), implementing effective partitioning strategies, indexing, and consistency models to support real-time financial data processing. The developer will build reusable libraries and frameworks using C#/.NET or Node.js and establish robust CI/CD pipelines through Azure DevOps to streamline delivery and reduce operational overhead.
        Job Title:Azure Cosmos DB Admin and Developer Location: Hybrid, London UK (3days/Week Onsite) Duration: 6months+ Contract Inside IR35 The Role The DB Admin and Developer will play a critical role in designing and developing scalable, secure, and high-performance applications tailored for banking and financial services. This role involves architecting cloud-native solutions using Azure Cosmos DB (SQL API and Mongo API), implementing effective partitioning strategies, indexing, and consistency models to support real-time financial data processing. The developer will build reusable libraries and frameworks using C#/.NET or Node.js and establish robust CI/CD pipelines through Azure DevOps to streamline delivery and reduce operational overhead.
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        Front-End Engineer (React / Typescript) Remote Initially 3 Months £500-£525pd (Inside IR35) Were looking for an experienced Front-End Developer to join our agile, cross-functional team. Youll take a leading role in shaping high-quality Single Page Applications and ensuring our front-end architecture is robust, maintainable, and built for scale. Role * Operate as a senior engineer in a blended onshore/offshore Scrum team * Own and manage your workload, breaking down tasks and collaborating closely with the team lead on feature design and architecture * Engage confidently with architects, BAs, designers, and QA to clarify requirements, challenge ideas, and help solve problems * Work closely with the front-end lead on improving processes, best practices, and issue resolution, while keeping the scrum master updated on progress
        Front-End Engineer (React / Typescript) Remote Initially 3 Months £500-£525pd (Inside IR35) Were looking for an experienced Front-End Developer to join our agile, cross-functional team. Youll take a leading role in shaping high-quality Single Page Applications and ensuring our front-end architecture is robust, maintainable, and built for scale. Role * Operate as a senior engineer in a blended onshore/offshore Scrum team * Own and manage your workload, breaking down tasks and collaborating closely with the team lead on feature design and architecture * Engage confidently with architects, BAs, designers, and QA to clarify requirements, challenge ideas, and help solve problems * Work closely with the front-end lead on improving processes, best practices, and issue resolution, while keeping the scrum master updated on progress
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        Servicenow Test Analyst - £300/£350 per day Outside IR35 - 6 month initial contract - Fully remote Sanderson is currently partnered with a business who require a ServiceNow Test Analyst who is responsible for ensuring the quality, functionality, and performance of all solutions deployed on the ServiceNow platform. This role involves end-to-end testing across various ServiceNow modules, leveraging a combination of manual and automated testing techniques. The analyst will work closely with developers, business analysts, and product owners in an Agile environment to deliver a reliable and high-quality user experience. Test Planning & Design * Collaborate with Business Analysts and Product Owners to analyse requirements, user stories, and technical specifications.
        Servicenow Test Analyst - £300/£350 per day Outside IR35 - 6 month initial contract - Fully remote Sanderson is currently partnered with a business who require a ServiceNow Test Analyst who is responsible for ensuring the quality, functionality, and performance of all solutions deployed on the ServiceNow platform. This role involves end-to-end testing across various ServiceNow modules, leveraging a combination of manual and automated testing techniques. The analyst will work closely with developers, business analysts, and product owners in an Agile environment to deliver a reliable and high-quality user experience. Test Planning & Design * Collaborate with Business Analysts and Product Owners to analyse requirements, user stories, and technical specifications.
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        FEATURED
        We are looking for Salesforce Architects (Solution and Technical) to help deliver next-gen solutions across Insurance & Financial Services. If you thrive on complex architecture, hands-on design, and steering clients toward best-practice cloud solutions we want to talk! Lead end-to-end Salesforce & SFI Insurance Cloud architecture Drive discovery sessions, technical design, and delivery excellence Guide dev teams, review code, and ensure solution quality Work across OmniStudio, Insurance Cloud, Health Cloud, FSC & Experience Cloud 8+ yrs technical leadership 5+ yrs Salesforce dev (Apex, LWC, APIs) Strong SFI Insurance Cloud experience (Quoting, Policy Admin, FNOL, Claims, etc.) Salesforce/SFI certifications This is a Hybrid contract inside IR 35 Apply now and architect the future!
        We are looking for Salesforce Architects (Solution and Technical) to help deliver next-gen solutions across Insurance & Financial Services. If you thrive on complex architecture, hands-on design, and steering clients toward best-practice cloud solutions we want to talk! Lead end-to-end Salesforce & SFI Insurance Cloud architecture Drive discovery sessions, technical design, and delivery excellence Guide dev teams, review code, and ensure solution quality Work across OmniStudio, Insurance Cloud, Health Cloud, FSC & Experience Cloud 8+ yrs technical leadership 5+ yrs Salesforce dev (Apex, LWC, APIs) Strong SFI Insurance Cloud experience (Quoting, Policy Admin, FNOL, Claims, etc.) Salesforce/SFI certifications This is a Hybrid contract inside IR 35 Apply now and architect the future!
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        We are looking for Developers to build powerful solutions across Salesforce, SFI Insurance Cloud, and Omnistudio. Lead Salesforce & SFI Insurance Cloud implementations Build with OmniStudio (DataRaptor, FlexCards, OmniScript) Guide teams & work directly with clients Drive end-to-end solution design, delivery & integration 5+ yrs experience (Salesforce + SFI) Strong LWC, Apex, APIs, Agile background Insurance Cloud expertise (Quoting, Policy Admin, FNOL, Claims) Salesforce & SFI certifications Excellent communication + leadership skills If you're a tech leader ready to deliver innovative cloud solutions, we want to meet you!
        We are looking for Developers to build powerful solutions across Salesforce, SFI Insurance Cloud, and Omnistudio. Lead Salesforce & SFI Insurance Cloud implementations Build with OmniStudio (DataRaptor, FlexCards, OmniScript) Guide teams & work directly with clients Drive end-to-end solution design, delivery & integration 5+ yrs experience (Salesforce + SFI) Strong LWC, Apex, APIs, Agile background Insurance Cloud expertise (Quoting, Policy Admin, FNOL, Claims) Salesforce & SFI certifications Excellent communication + leadership skills If you're a tech leader ready to deliver innovative cloud solutions, we want to meet you!
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        We are seeking a highly skilled LLM Developer to design, build, and deploy a web-based AI agent that will automate and elevate our core QA coordination tasks. * Design & Implement NLP Pipelines: Parse, understand, and extract key information from unstructured Release Notes and Test Policy documents. * Develop RAG Systems: Fine-tune a Retrieval-Augmented Generation (RAG) system, training models on QA policies for accuracy and context-awareness. * Build AI Agent Architecture: Utilize modern LLM APIs (e.g., OpenAI, Anthropic, Gemini) and frameworks (e.g., LangChain, LlamaIndex) to create a robust system. * Integrate Backend APIs: Enable the AI agent to automatically publish generated test guides to our internal web platform. * Create Web-Based UI: Develop a simple, effective interface for QA teams to interact with, review, and override AI outputs if necessary.
        We are seeking a highly skilled LLM Developer to design, build, and deploy a web-based AI agent that will automate and elevate our core QA coordination tasks. * Design & Implement NLP Pipelines: Parse, understand, and extract key information from unstructured Release Notes and Test Policy documents. * Develop RAG Systems: Fine-tune a Retrieval-Augmented Generation (RAG) system, training models on QA policies for accuracy and context-awareness. * Build AI Agent Architecture: Utilize modern LLM APIs (e.g., OpenAI, Anthropic, Gemini) and frameworks (e.g., LangChain, LlamaIndex) to create a robust system. * Integrate Backend APIs: Enable the AI agent to automatically publish generated test guides to our internal web platform. * Create Web-Based UI: Develop a simple, effective interface for QA teams to interact with, review, and override AI outputs if necessary.
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        Rate - £475 - £500 Outside IR35 Duration - 3 months Location - Fully remote We're seeking a Business Central and Shopify Support Engineer to join a client of ours growing at a substantial rate! This role bridges ERP and e-commerce platforms, ensuring seamless integration, smooth operations and excellent support for our 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 integration's, data synchronisation and workflows * Liaise with support partners for issues that require 2nd/ 3rd line support and coordinate activities between partners where required
        Rate - £475 - £500 Outside IR35 Duration - 3 months Location - Fully remote We're seeking a Business Central and Shopify Support Engineer to join a client of ours growing at a substantial rate! This role bridges ERP and e-commerce platforms, ensuring seamless integration, smooth operations and excellent support for our 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 integration's, data synchronisation and workflows * Liaise with support partners for issues that require 2nd/ 3rd line support and coordinate activities between partners where required
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        FEATURED
        Technical Delivery Manager, Delivery Manager We are working with a leading central government organisation to find a Technical Delivery Manager with a strong data delivery expertise and active SC Clearance. You will be required to lead cross functional teams to deliver a data focused technology project that supports high impact public services, ensuring outcomes are aligned with departmental strategy, governance and security standards Rate - £650.00 per day inside ir35 Location - London - Once a week onsite Duration - 6 Months with the opportunity of extension Key Responsibilities and Key Skills * Deliver end to end technical and data driven projects within a complex government environment * Manage project scopes, timelines, risks, budgets, dependencies and reporting in line with government delivery frameworks
        Technical Delivery Manager, Delivery Manager We are working with a leading central government organisation to find a Technical Delivery Manager with a strong data delivery expertise and active SC Clearance. You will be required to lead cross functional teams to deliver a data focused technology project that supports high impact public services, ensuring outcomes are aligned with departmental strategy, governance and security standards Rate - £650.00 per day inside ir35 Location - London - Once a week onsite Duration - 6 Months with the opportunity of extension Key Responsibilities and Key Skills * Deliver end to end technical and data driven projects within a complex government environment * Manage project scopes, timelines, risks, budgets, dependencies and reporting in line with government delivery frameworks
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        FEATURED
        AI Developer - Generative AI Specialist - 3 months+ - Hybrid - Rate circa £500-£650 We are looking for an experienced AI Developer to join a team developing cutting edge AI solutions who will either have current and active SC clearance or have the ability to be able to obtain SC clearance. You will provide solutions across both Azure and AWS technologies and importantly have a demonstrable background in C#.Net . This will be a very much collaborative role working with a range of domain experts. Being the AI SME you will provide technical expertise on GenAI capabilities and its limitations to the non-technical people. What you will bring to the team * Fine-tune Large Language Models (LLMs) and other generative architectures. * Optimise pre-trained models (OpenAI, Anthropic, or open-source LLMs) for business use cases using prompt engineering and reinforcement learning.
        AI Developer - Generative AI Specialist - 3 months+ - Hybrid - Rate circa £500-£650 We are looking for an experienced AI Developer to join a team developing cutting edge AI solutions who will either have current and active SC clearance or have the ability to be able to obtain SC clearance. You will provide solutions across both Azure and AWS technologies and importantly have a demonstrable background in C#.Net . This will be a very much collaborative role working with a range of domain experts. Being the AI SME you will provide technical expertise on GenAI capabilities and its limitations to the non-technical people. What you will bring to the team * Fine-tune Large Language Models (LLMs) and other generative architectures. * Optimise pre-trained models (OpenAI, Anthropic, or open-source LLMs) for business use cases using prompt engineering and reinforcement learning.
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        Role: Mobile App Developer with Flutter Type: Contract (6 Months) Location: UK (Fully Remote) MUST HAVES: Proficient in Flutter / React Native / MAUI, Mobile App Payment Services, strong API consumption, and App security best practices. Work in an agile team on high-impact national services. Immediate start! This is an urgent vacancy with a deadline where the hiring manager is shortlisting for an interview immediately. Please apply with a copy of your CV or send it praveen. sukkala2 @ randstaddigital. Com Randstad Technologies is acting as an Employment Business in relation to this vacancy.
        Role: Mobile App Developer with Flutter Type: Contract (6 Months) Location: UK (Fully Remote) MUST HAVES: Proficient in Flutter / React Native / MAUI, Mobile App Payment Services, strong API consumption, and App security best practices. Work in an agile team on high-impact national services. Immediate start! This is an urgent vacancy with a deadline where the hiring manager is shortlisting for an interview immediately. Please apply with a copy of your CV or send it praveen. sukkala2 @ randstaddigital. Com Randstad Technologies is acting as an Employment Business in relation to this vacancy.
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        FEATURED

        Project Manager

        Pearson Whiffin IT & Digital
        City of London (EC1V), EC1V
        £425 per day
        We are seeking an experienced Project Manager with a strong background in application migration and systems integration to lead a high-impact technology transformation initiative. This role is ideal for someone who thrives in fast-paced environments, excels at cross-functional coordination, and can deliver complex technical projects on time and within scope. Key Responsibilities * Lead end-to-end application migration project, including planning, risk management, and execution. * Manage integration initiatives across multiple platforms, ensuring seamless data and workflow alignment. * Work closely with technical teams, vendors, and business stakeholders to define requirements and deliverables. * Develop and maintain detailed project plans, schedules, resource allocations, and budgets. * Identify project risks and issues, and drive mitigation strategies.
        We are seeking an experienced Project Manager with a strong background in application migration and systems integration to lead a high-impact technology transformation initiative. This role is ideal for someone who thrives in fast-paced environments, excels at cross-functional coordination, and can deliver complex technical projects on time and within scope. Key Responsibilities * Lead end-to-end application migration project, including planning, risk management, and execution. * Manage integration initiatives across multiple platforms, ensuring seamless data and workflow alignment. * Work closely with technical teams, vendors, and business stakeholders to define requirements and deliverables. * Develop and maintain detailed project plans, schedules, resource allocations, and budgets. * Identify project risks and issues, and drive mitigation strategies.
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        Job Post: Data & Analytics - Gen AI Engineer (Contract) A Leading Technology Consulting Firm * Job Title: Data & Analytics - Gen AI Engineer * Contract Duration: 6 Months+ * Location: Primarily remote, with pre-agreed, company-covered travel if needed) * IR35 Status: Inside IR35 * Start Date (Approx.): November 2025 The Project: AI Transformation Initiative We are seeking a highly skilled and specialized Generative AI Engineer to join a critical 6-month project focused on implementing advanced AI solutions within the commercial banking sector. This role requires specialized knowledge and expertise not currently available in-house to rapidly design, prototype, and deploy cutting-edge Generative AI models. The Role: Gen AI Engineer As a Generative AI Engineer, you will be a key specialist focused on the end-to-end lifecycle of generative AI models and algorithms.
        Job Post: Data & Analytics - Gen AI Engineer (Contract) A Leading Technology Consulting Firm * Job Title: Data & Analytics - Gen AI Engineer * Contract Duration: 6 Months+ * Location: Primarily remote, with pre-agreed, company-covered travel if needed) * IR35 Status: Inside IR35 * Start Date (Approx.): November 2025 The Project: AI Transformation Initiative We are seeking a highly skilled and specialized Generative AI Engineer to join a critical 6-month project focused on implementing advanced AI solutions within the commercial banking sector. This role requires specialized knowledge and expertise not currently available in-house to rapidly design, prototype, and deploy cutting-edge Generative AI models. The Role: Gen AI Engineer As a Generative AI Engineer, you will be a key specialist focused on the end-to-end lifecycle of generative AI models and algorithms.
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        FEATURED
        RealVNC is the remote access platform for engineers looking for the most reliable and the most secure solution built by the creators of VNC technology. Over the last 25 years, as the inventors of VNC, we've enabled a global workforce to work wherever works and created the remote access market. Our software is used by hundreds of millions of users worldwide including IT professionals from global companies, such as Intel, IBM, NASA, Shell, DreamWorks and Philips. Our lead product, VNC Connect, allows users to connect securely to a remote device anywhere in the world, see its screen in real-time, and take control as though sitting in front of it. The product has been deployed across a myriad of use cases, from remote support through to deploying the software onto connected devices such as medical ventilators, set-top boxes, heavy industrial machinery and more.
        RealVNC is the remote access platform for engineers looking for the most reliable and the most secure solution built by the creators of VNC technology. Over the last 25 years, as the inventors of VNC, we've enabled a global workforce to work wherever works and created the remote access market. Our software is used by hundreds of millions of users worldwide including IT professionals from global companies, such as Intel, IBM, NASA, Shell, DreamWorks and Philips. Our lead product, VNC Connect, allows users to connect securely to a remote device anywhere in the world, see its screen in real-time, and take control as though sitting in front of it. The product has been deployed across a myriad of use cases, from remote support through to deploying the software onto connected devices such as medical ventilators, set-top boxes, heavy industrial machinery and more.
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        Network Automation Engineer

        Certain Advantage
        Lambeth, South East London (SE1), SE1 7NA
        Competitive
        Network AutomationEngineer Location: London (Hybrid, 3 days per week on-site) Duration: 6 months Rate:Negotiable (DOE) Overview An industry-leading global organisation is driving the automation and standardisation of its network infrastructure and services. Theyre looking for a Network Automation Engineer with strong hands-on experience in Ansible, Python, and network orchestration to help design, build, and integrate automation solutions across a range of enterprise platforms. This role blends network engineering, DevOps, and systems integration ideal for someone comfortable writing automation playbooks and APIs while understanding routing, firewalls, and connectivity fundamentals. Key Responsibilities * Design, build, and maintain automation solutions for network and infrastructure systems.
        Network AutomationEngineer Location: London (Hybrid, 3 days per week on-site) Duration: 6 months Rate:Negotiable (DOE) Overview An industry-leading global organisation is driving the automation and standardisation of its network infrastructure and services. Theyre looking for a Network Automation Engineer with strong hands-on experience in Ansible, Python, and network orchestration to help design, build, and integrate automation solutions across a range of enterprise platforms. This role blends network engineering, DevOps, and systems integration ideal for someone comfortable writing automation playbooks and APIs while understanding routing, firewalls, and connectivity fundamentals. Key Responsibilities * Design, build, and maintain automation solutions for network and infrastructure systems.
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        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

        Ariba - Technical Procurement Lead

        Sanderson Recruitment
        City of London (EC1), EC1
        £700 - £775 per day + via Umbrella
        Sanderson are partnered with a leading Financial Services company to support in the hiring of an Ariba Technical Procurement Lead. This role is hybrid working, 50% onsite expectation, in one of the main offices - London, York, Bristol, Norwich or Perth. An initial 6 months contract with potential extensions. Purpose of the Role * Own and improve Ariba procurement technology, ensuring it connects well with other business systems. * Lead and deliver the digital strategy for procurement, making sure the company gets the most value from procurement tools, processes, and data. * Use procurement data to provide valuable insights and reporting. * Manage and prioritise technology needs and improvements. * Offer technical advice to procurement teams around using Ariba. * Keep procurement processes up to date and encourage continuous improvement.
        Sanderson are partnered with a leading Financial Services company to support in the hiring of an Ariba Technical Procurement Lead. This role is hybrid working, 50% onsite expectation, in one of the main offices - London, York, Bristol, Norwich or Perth. An initial 6 months contract with potential extensions. Purpose of the Role * Own and improve Ariba procurement technology, ensuring it connects well with other business systems. * Lead and deliver the digital strategy for procurement, making sure the company gets the most value from procurement tools, processes, and data. * Use procurement data to provide valuable insights and reporting. * Manage and prioritise technology needs and improvements. * Offer technical advice to procurement teams around using Ariba. * Keep procurement processes up to date and encourage continuous improvement.
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        FEATURED
        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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        12 months Remote Inside IR35 - Umbrella only As a Salesforce Developer, you will lead the development of custom solutions on the Salesforce platform. You will be responsible for writing Apex code, creating visual force pages, and implementing integrations. You will have a strong understanding of the Salesforce platform and experience leading successful projects. A Senior Salesforce Developer will have a deep understanding of the Salesforce platform and the ability to develop complex solutions, mentor and lead the development team, troubleshoot and provide technical support to clients. They will also have a solid understanding of web development concepts and languages and keep up-to-date with new Salesforce features and best practices. * Skilled in Apex, HTML, JavaScript (ES6+), CSS, SLDS, and Salesforce DX.
        12 months Remote Inside IR35 - Umbrella only As a Salesforce Developer, you will lead the development of custom solutions on the Salesforce platform. You will be responsible for writing Apex code, creating visual force pages, and implementing integrations. You will have a strong understanding of the Salesforce platform and experience leading successful projects. A Senior Salesforce Developer will have a deep understanding of the Salesforce platform and the ability to develop complex solutions, mentor and lead the development team, troubleshoot and provide technical support to clients. They will also have a solid understanding of web development concepts and languages and keep up-to-date with new Salesforce features and best practices. * Skilled in Apex, HTML, JavaScript (ES6+), CSS, SLDS, and Salesforce DX.
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        FEATURED
        5+ years experience developing front-end applications with React and TypeScript. Proficiency in state management. Strong understanding of RESTful API integration, authentication, and security practices. Experience with CI/CD pipelines (Azure DevOps or similar) and automated testing (Jest, Cypress). Solid grounding in UX principles, responsive design, and accessibility (WCAG). Confident working within design systems and reusable component frameworks. Collaborate across disciplines particularly with backend and QA engineers. Participate in the technology community to learn, grow, and share expertise
        5+ years experience developing front-end applications with React and TypeScript. Proficiency in state management. Strong understanding of RESTful API integration, authentication, and security practices. Experience with CI/CD pipelines (Azure DevOps or similar) and automated testing (Jest, Cypress). Solid grounding in UX principles, responsive design, and accessibility (WCAG). Confident working within design systems and reusable component frameworks. Collaborate across disciplines particularly with backend and QA engineers. Participate in the technology community to learn, grow, and share expertise
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        SDET (Software Developer in Test)

        Sanderson Recruitment
        City of London (EC1), EC1
        £400 - £450 per day
        6 Month contract £425 - £475 per day Outside IR35 London/Hybrid - 2x days a week in London * Design and develop automated testing frameworks and strategies with Selenium and Playwright using Javascript/Typescript. * Create and maintain test scripts utilising WebDriver, Selenium, Gherkin, and Cucumber * Performance testing using JMeter * Write clear and concise test cases and scenarios using JSON data structures to validate application features. * Conduct thorough testing of user interfaces, ensuring compliance with HTML and CSS standards. * Collaborate with developers and product teams to define testing requirements and assist with continuous integration and delivery (CI/CD) practices. * Utilise Fetch API to automate interactions with web services and validate data flows.
        6 Month contract £425 - £475 per day Outside IR35 London/Hybrid - 2x days a week in London * Design and develop automated testing frameworks and strategies with Selenium and Playwright using Javascript/Typescript. * Create and maintain test scripts utilising WebDriver, Selenium, Gherkin, and Cucumber * Performance testing using JMeter * Write clear and concise test cases and scenarios using JSON data structures to validate application features. * Conduct thorough testing of user interfaces, ensuring compliance with HTML and CSS standards. * Collaborate with developers and product teams to define testing requirements and assist with continuous integration and delivery (CI/CD) practices. * Utilise Fetch API to automate interactions with web services and validate data flows.
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        FEATURED

        ServiceNow Administrator

        Pearson Whiffin IT & Digital
        City of London (EC1V), EC1V
        £400 - £450 per day
        Were seeking an experienced ServiceNow Administrator to support and deliver a major ServiceNow platform refresh project. This is a hands-on technical role, working closely with internal stakeholders and external partners to ensure a smooth, secure, and efficient refresh of the ServiceNow environment. You will play a key role in preparing, executing, and validating the platform upgrade, as well as implementing post-refresh optimizations and ensuring minimal disruption to business operations. Key Responsibilities * Administer and maintain the ServiceNow platform during the refresh and upgrade cycle. * Plan, coordinate, and execute the ServiceNow instance upgrade, ensuring compliance with best practices and governance standards. * Manage clone, backup, and restore activities in preparation for the refresh.
        Were seeking an experienced ServiceNow Administrator to support and deliver a major ServiceNow platform refresh project. This is a hands-on technical role, working closely with internal stakeholders and external partners to ensure a smooth, secure, and efficient refresh of the ServiceNow environment. You will play a key role in preparing, executing, and validating the platform upgrade, as well as implementing post-refresh optimizations and ensuring minimal disruption to business operations. Key Responsibilities * Administer and maintain the ServiceNow platform during the refresh and upgrade cycle. * Plan, coordinate, and execute the ServiceNow instance upgrade, ensuring compliance with best practices and governance standards. * Manage clone, backup, and restore activities in preparation for the refresh.
        more

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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 part time API jobs are there in London?
        There are 357 part time API jobs within 20 miles of London available on Jobsite right now.

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

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