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        50 Part Time API jobs in London + 20 miles

        Associate Engineer – Java Developer (m/f/x) – Automation as a Service

        Deutsche Bank
        London
        Competitive
        Position Overview Job Title Associate Engineer Java Developer (m/f/x) Automation as a Service Location London Corporate Title Associate Deutsche Bank Technology is a global team of tech specialists, spread across multiple trading hubs and tech centres. We have a strong focus on promoting technical excellence our engineers work at the forefront of financial services innovation using cutting-edge technologies. Our London location is one of our key hub locations where we are co-located with the Business. We are committed to building a diverse workforce and creating excellent opportunities for talented engineers and technologists. Our tech teams and business units use agile ways of working to create #GlobalHausbank solutions from our home market.
        Position Overview Job Title Associate Engineer Java Developer (m/f/x) Automation as a Service Location London Corporate Title Associate Deutsche Bank Technology is a global team of tech specialists, spread across multiple trading hubs and tech centres. We have a strong focus on promoting technical excellence our engineers work at the forefront of financial services innovation using cutting-edge technologies. Our London location is one of our key hub locations where we are co-located with the Business. We are committed to building a diverse workforce and creating excellent opportunities for talented engineers and technologists. Our tech teams and business units use agile ways of working to create #GlobalHausbank solutions from our home market.
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        Senior Java Software Engineer (Urgent)

        Morson Edge
        Tower Hill, City of London (EC3), E1W 1WY
        £500 - 600 per day
        We are seeking an experienced Senior Java Software Engineer to join the IT team at a leading bank, supporting the delivery, maintenance, and enhancement of core systems across various business areas, including operations, compliance, transactions, and client management. This is a 6-month contract role offering an excellent day rate, ideally suited to candidates with experience in regulated environments, financial services, or government/public sector organisations. In this role, you will be an integral part of the software development lifecycle, working closely with Senior Java Developers, UI/UX teams, and Agile Transformation to architect, build, and deliver greenfield, brownfield, and integration applications.
        We are seeking an experienced Senior Java Software Engineer to join the IT team at a leading bank, supporting the delivery, maintenance, and enhancement of core systems across various business areas, including operations, compliance, transactions, and client management. This is a 6-month contract role offering an excellent day rate, ideally suited to candidates with experience in regulated environments, financial services, or government/public sector organisations. In this role, you will be an integral part of the software development lifecycle, working closely with Senior Java Developers, UI/UX teams, and Agile Transformation to architect, build, and deliver greenfield, brownfield, and integration applications.
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        Python Engineer

        Bloc Recruitment
        The City, City of London (EC4), EC2R
        £475 per day
        Up to £475 Per day inside IR35 Long term contract Remote UK/EU We’re looking for a BE Engineer to design and build high-quality backend systems and data pipelines that power the analytics platform. You’ll collaborate with engineers and the Product team across the full software lifecycle, leading on scalable services that ingest, transform and deliver data to our frontend applications and customers. You’ll bring strong Python skills, experience with microservices and data ingestion/ETL pipelines, and an eye for clean, maintainable code. Familiarity with AI-assisted dev tools (GitHub Copilot, Cursor, Windsurf, Devin) is a plus — we encourage using them to boost developer velocity and quality. What you’ll do * Design and implement robust, scalable backend services in Python * Own and improve data ingestion & processing pipelines
        Up to £475 Per day inside IR35 Long term contract Remote UK/EU We’re looking for a BE Engineer to design and build high-quality backend systems and data pipelines that power the analytics platform. You’ll collaborate with engineers and the Product team across the full software lifecycle, leading on scalable services that ingest, transform and deliver data to our frontend applications and customers. You’ll bring strong Python skills, experience with microservices and data ingestion/ETL pipelines, and an eye for clean, maintainable code. Familiarity with AI-assisted dev tools (GitHub Copilot, Cursor, Windsurf, Devin) is a plus — we encourage using them to boost developer velocity and quality. What you’ll do * Design and implement robust, scalable backend services in Python * Own and improve data ingestion & processing pipelines
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        Software Engineer (Hardware Integration with .NET)

        IO Associates
        City of London (EC1)
        £600 - £800 per day + Outside IR35 and Hybrid
        Role: Staff Software Engineer Sector: Life Sciences Location: London Days Onsite: 3 per week Day Rate: £800 Outside IR35 Duration: 4 Months then to extend or go Permanent iO Associates have partnered with Life Science Manufacturing company on their search for a Staff Software Engineer who has a strong background in integrating Medical Devices. This role will give you the opportunity to make a real impact in Healthcare and Life Sciences. Essential Requirements * Strong .NET / C# background * Significant experience integrating and communicating with hardware devices * Ability to handle Windows devices, drivers, and communication layers * 8+ years of experience at a staff-level, capable of working autonomously * Not a web-focused developer; needs to be fully hardware-integration oriented Beneficial Experience * gRPC, REST APIs, HTTP * Integrating devices in Life Sciences
        Role: Staff Software Engineer Sector: Life Sciences Location: London Days Onsite: 3 per week Day Rate: £800 Outside IR35 Duration: 4 Months then to extend or go Permanent iO Associates have partnered with Life Science Manufacturing company on their search for a Staff Software Engineer who has a strong background in integrating Medical Devices. This role will give you the opportunity to make a real impact in Healthcare and Life Sciences. Essential Requirements * Strong .NET / C# background * Significant experience integrating and communicating with hardware devices * Ability to handle Windows devices, drivers, and communication layers * 8+ years of experience at a staff-level, capable of working autonomously * Not a web-focused developer; needs to be fully hardware-integration oriented Beneficial Experience * gRPC, REST APIs, HTTP * Integrating devices in Life Sciences
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        FEATURED

        Data Engineer

        Canada Life Group (UK) Ltd (The)
        City of London (EC1), EC3V 9JU
        Competitive
        Canada Life UK looks after the retirement, investment and protection needs of individuals, families and companies. We help to build better futures for our customers, our intermediaries and our employees by operating as a modern, agile and welcoming organisation. Part of our parent company Great-West Lifeco, Canada Life UK has operated in the United Kingdom since 1903. We have hundreds of respected and supported employees committed to doing the right thing for our customers and colleagues. Canada Life UK is transforming to create a more customer-focused business by providing our customers with expertise on financial and tax planning, offering home finance and annuities propositions, and providing collective fund solutions to third party customers. Job Purpose
        Canada Life UK looks after the retirement, investment and protection needs of individuals, families and companies. We help to build better futures for our customers, our intermediaries and our employees by operating as a modern, agile and welcoming organisation. Part of our parent company Great-West Lifeco, Canada Life UK has operated in the United Kingdom since 1903. We have hundreds of respected and supported employees committed to doing the right thing for our customers and colleagues. Canada Life UK is transforming to create a more customer-focused business by providing our customers with expertise on financial and tax planning, offering home finance and annuities propositions, and providing collective fund solutions to third party customers. Job Purpose
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        PREMIUM
        London, UK Up to £60/hour Outside IR35 Active SC Clearance required iO Associates have aligned exclusively with a multi-nation defence alliance to find an MS Dynamics Developer. The ideal candidate would have extensive hands-on experience across the full Dynamics 365 F&O lifecycle, with strong skills in customisation, integrations, automation, Power Platform development, AI-led enhancements, and stakeholder engagement. * Lead customisation, configuration, and enhancement of Dynamics 365 F&O, ensuring scalable, maintainable solutions. * Drive end-to-end delivery across the full ERP lifecycle, including development, integrations, testing, deployment, and post-go-live support. * Build automated workflows and integrations using Power Platform, REST APIs, and low-code tools to improve business processes.
        London, UK Up to £60/hour Outside IR35 Active SC Clearance required iO Associates have aligned exclusively with a multi-nation defence alliance to find an MS Dynamics Developer. The ideal candidate would have extensive hands-on experience across the full Dynamics 365 F&O lifecycle, with strong skills in customisation, integrations, automation, Power Platform development, AI-led enhancements, and stakeholder engagement. * Lead customisation, configuration, and enhancement of Dynamics 365 F&O, ensuring scalable, maintainable solutions. * Drive end-to-end delivery across the full ERP lifecycle, including development, integrations, testing, deployment, and post-go-live support. * Build automated workflows and integrations using Power Platform, REST APIs, and low-code tools to improve business processes.
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        FEATURED
        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

        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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        Why Faculty? We established Faculty in 2014 because we thought that AI would be the most important technology of our time. Since then, weve worked with over 350 global customers to transform their performance through human-centric AI. You can read about our real-world impact here. We dont chase hype cycles. We innovate, build and deploy responsible AI which moves the needle - and we know a thing or two about doing it well. We bring an unparalleled depth of technical, product and delivery expertise to our clients who span government, finance, retail, energy, life sciences and defence. Our business, and reputation, is growing fast and were always on the lookout for individuals who share our intellectual curiosity and desire to build a positive legacy through technology.
        Why Faculty? We established Faculty in 2014 because we thought that AI would be the most important technology of our time. Since then, weve worked with over 350 global customers to transform their performance through human-centric AI. You can read about our real-world impact here. We dont chase hype cycles. We innovate, build and deploy responsible AI which moves the needle - and we know a thing or two about doing it well. We bring an unparalleled depth of technical, product and delivery expertise to our clients who span government, finance, retail, energy, life sciences and defence. Our business, and reputation, is growing fast and were always on the lookout for individuals who share our intellectual curiosity and desire to build a positive legacy through technology.
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        Principal Technical Safety Consultants (CFD-FLACS) Background Risktec Solutions is an established, independent and specialist risk management consulting and training company, and is part of the TV Rheinland Group. We help clients to manage health, safety, security, environmental and business risk in sectors where the impact of loss is significant. Our people are high calibre professionals, with a strong focus on meeting clients expectations and we have offices across the UK and in the Netherlands, Dubai, Muscat, Houston and Calgary. Further information is available at * oil and gas (offshore and onshore) * carbon capture and storage * chemical manufacturing, handling and storage * hydrogen generation and distribution * onshore and offshore wind energy. Role Description
        Principal Technical Safety Consultants (CFD-FLACS) Background Risktec Solutions is an established, independent and specialist risk management consulting and training company, and is part of the TV Rheinland Group. We help clients to manage health, safety, security, environmental and business risk in sectors where the impact of loss is significant. Our people are high calibre professionals, with a strong focus on meeting clients expectations and we have offices across the UK and in the Netherlands, Dubai, Muscat, Houston and Calgary. Further information is available at * oil and gas (offshore and onshore) * carbon capture and storage * chemical manufacturing, handling and storage * hydrogen generation and distribution * onshore and offshore wind energy. Role Description
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        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
        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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        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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        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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        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

        .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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        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
        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
        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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        Solutions Consultant

        Randstad Digital
        City of London (EC1)
        £38.46 - £43.10 per hour
        Role: Solutions Consultant Location: London, UK (Hybrid: 3 days onsite) Role Type: Contract My client, a global technology leader, is seeking a Solutions Consultant to support operational and strategic solution delivery across internal teams and external partners. This is a maternity cover role within a horizontal business function. Responsibilities * Act as a partner to internal teams and external users to translate business needs into scalable solutions * Manage stakeholder relationships and ensure high-quality delivery across the user/partner/client lifecycle * Lead project planning, status reporting, issue tracking, and documentation * Create and maintain repeatable solution content (e.g., best practices, tutorials, support materials) * Identify inefficiencies and contribute to business efficiency plans (BEP)
        Role: Solutions Consultant Location: London, UK (Hybrid: 3 days onsite) Role Type: Contract My client, a global technology leader, is seeking a Solutions Consultant to support operational and strategic solution delivery across internal teams and external partners. This is a maternity cover role within a horizontal business function. Responsibilities * Act as a partner to internal teams and external users to translate business needs into scalable solutions * Manage stakeholder relationships and ensure high-quality delivery across the user/partner/client lifecycle * Lead project planning, status reporting, issue tracking, and documentation * Create and maintain repeatable solution content (e.g., best practices, tutorials, support materials) * Identify inefficiencies and contribute to business efficiency plans (BEP)
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        FEATURED

        Salesforce Tech Lead

        Infoplus Technologies UK Ltd
        Windsor, Berkshire
        From £450 to £500 per day
        Windsor, UK Will the role be 100% remote, Hybrid or 100% office? (Mandatory) Hybrid (visit to office once every week) to begin with Is BGC required to completed before joining?(Y/N) * 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. * At least 5+ years Salesforce, both declarative and programmatic
        Windsor, UK Will the role be 100% remote, Hybrid or 100% office? (Mandatory) Hybrid (visit to office once every week) to begin with Is BGC required to completed before joining?(Y/N) * 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. * At least 5+ years Salesforce, both declarative and programmatic
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        Job Title: Airtable Support Engineer Location: London, England (Hybrid 3 days in office at either 22 Bishopsgate, EC2N 4BQ or 1 Battersea Power Station, SW11 8BZ) Job Type: Contract (Inside IR35) Duration: 6 Months Job Summary: Join Tata Consultancy Services (TCS), a purpose-led transformation company supporting major brands in the UK and worldwide. As an Airtable Support Engineer, you will play a crucial role in enabling Media & Entertainment Business teams to perform efficiently by leveraging Airtable Dashboards, Views, and Charts. This hybrid role involves close collaboration with business users to implement and modify Airtable solutions, driving impactful business outcomes. * Design, develop, and optimise Airtable bases to support business operations. * Work with Airtable workflows, automations, and views for enhanced data management.
        Job Title: Airtable Support Engineer Location: London, England (Hybrid 3 days in office at either 22 Bishopsgate, EC2N 4BQ or 1 Battersea Power Station, SW11 8BZ) Job Type: Contract (Inside IR35) Duration: 6 Months Job Summary: Join Tata Consultancy Services (TCS), a purpose-led transformation company supporting major brands in the UK and worldwide. As an Airtable Support Engineer, you will play a crucial role in enabling Media & Entertainment Business teams to perform efficiently by leveraging Airtable Dashboards, Views, and Charts. This hybrid role involves close collaboration with business users to implement and modify Airtable solutions, driving impactful business outcomes. * Design, develop, and optimise Airtable bases to support business operations. * Work with Airtable workflows, automations, and views for enhanced data management.
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        Date: Dec 12, 2025 Location: London, GB, EC3M 3BD Company: Aspen Insurance Role Level C , Role Classification AVP Department IT Since Aspen was founded in 2002, we have become a leading, diversified specialty insurance and reinsurance company. We respond thoughtfully and creatively to find the best outcomes for our clients and business partners through carefully-tailored solutions. We believe the way we work is just as important as the work we do, and we are guided by our core values of respect, honesty, trust and professionalism. Aspen is a great place to develop your career offering an exciting and challenging environment where achievement is rewarded. To plan, co-ordinate and lead the execution of specific IT activities/initiatives which fulfil the organisations business requirements; and support continuous improvement.
        Date: Dec 12, 2025 Location: London, GB, EC3M 3BD Company: Aspen Insurance Role Level C , Role Classification AVP Department IT Since Aspen was founded in 2002, we have become a leading, diversified specialty insurance and reinsurance company. We respond thoughtfully and creatively to find the best outcomes for our clients and business partners through carefully-tailored solutions. We believe the way we work is just as important as the work we do, and we are guided by our core values of respect, honesty, trust and professionalism. Aspen is a great place to develop your career offering an exciting and challenging environment where achievement is rewarded. To plan, co-ordinate and lead the execution of specific IT activities/initiatives which fulfil the organisations business requirements; and support continuous improvement.
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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 50 part time API jobs within 20 miles of London available on Jobsite right now.

        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, Product Management, amongst many others.