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        297 Contract API jobs in London + 20 miles

        Go Developer API

        Client Server
        The City, EC2
        £100000 - £140000 per annum + benefits
        Go Developer / Backend Software Engineer (Golang API) Remote UK to £140k Are you a skilled backend focussed technologist with strong Go / Golang development skills? You could be progressing your career at a scaling FinTech that is developing a fast, secure cross-border payments platform that is designed for ultra low-cost, near-instant money transfer at significantly higher transaction sizes than what's currently possible, with a mission to break down the barriers that have held back African businesses for decades. As a Go Developer you'll collaborate with a highly skilled, remote team, taking ownership of products and designing and developing new features and scalable APIs from scratch, working across the full development lifecycle from writing requirements to deploying into production.
        Go Developer / Backend Software Engineer (Golang API) Remote UK to £140k Are you a skilled backend focussed technologist with strong Go / Golang development skills? You could be progressing your career at a scaling FinTech that is developing a fast, secure cross-border payments platform that is designed for ultra low-cost, near-instant money transfer at significantly higher transaction sizes than what's currently possible, with a mission to break down the barriers that have held back African businesses for decades. As a Go Developer you'll collaborate with a highly skilled, remote team, taking ownership of products and designing and developing new features and scalable APIs from scratch, working across the full development lifecycle from writing requirements to deploying into production.
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        PREMIUMNEW

        Backend Software Engineer Python API

        Client Server
        Queens Gate, SW7
        £100000 - £130000 per annum + bonus + benefits
        Backend Software Engineer / Developer (Python API) London to £130k One of the world's oldest Hedge Funds with over $10 billion under management is seeking a technologist Backend Software Engineer to join their Quant Analytics team to build a quant library, working closely with Quants as the go to person for software engineering within the team. This is a senior, hands-on role where you can make a real impact; you'll take ownership working across the full software development lifecycle from requirements through to deployment with a focus on complex backend systems. You'll join colleagues in the London office with flexible hours you'll be based in amazing offices with free onsite gym as well as other perks such as catered lunches and the flexibility to work from home once a week.
        Backend Software Engineer / Developer (Python API) London to £130k One of the world's oldest Hedge Funds with over $10 billion under management is seeking a technologist Backend Software Engineer to join their Quant Analytics team to build a quant library, working closely with Quants as the go to person for software engineering within the team. This is a senior, hands-on role where you can make a real impact; you'll take ownership working across the full software development lifecycle from requirements through to deployment with a focus on complex backend systems. You'll join colleagues in the London office with flexible hours you'll be based in amazing offices with free onsite gym as well as other perks such as catered lunches and the flexibility to work from home once a week.
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        PREMIUMNEW

        Software Engineer JavaScript Node.js AWS API

        Client Server
        SE1, South East London
        £70000 - £85000 per annum + benefits
        Software Engineer / Developer (JavaScript Node.js AWS API) London / WFH to £85k Are you a technologist Software Engineer who enjoys using a range of languages whilst continually learning? You could be progressing your career at a successful and growing Cyber Security Risk Management tech company, working on complex and interesting systems at the cutting edge of technology used by insurance company to assess security risk. As a Software Engineer you'll join the Product Engineering team working on the development of websites, APIs and efficient database queries. As well as JavaScript and SQL you'll be working with TypeScript, Node.js and serverless AWS with a focus on backend development with exposure to the React front end too.
        Software Engineer / Developer (JavaScript Node.js AWS API) London / WFH to £85k Are you a technologist Software Engineer who enjoys using a range of languages whilst continually learning? You could be progressing your career at a successful and growing Cyber Security Risk Management tech company, working on complex and interesting systems at the cutting edge of technology used by insurance company to assess security risk. As a Software Engineer you'll join the Product Engineering team working on the development of websites, APIs and efficient database queries. As well as JavaScript and SQL you'll be working with TypeScript, Node.js and serverless AWS with a focus on backend development with exposure to the React front end too.
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        PREMIUMNEW

        Senior QA Test Engineer SaaS

        Client Server
        Underhill Park, RH2
        £80000 - £90000 per annum + bonus + benefits
        Are you an experienced QA Test Engineer seeking a role where you can make a real impact? You could be progressing your career as a Senior QA Test Engineer at a global InsurTech business that is producing game changing technology. As a Senior QA Test Engineer you will collaborate with the Lead QA within a product team responsible for the quality of a flagship insurance underwriting product used globally by all major insurers. You'll build a strong understanding of the product; using a 'contract testing' mindset you'll perform non-functional and exploratory testing, form test strategy and collaborate closely with software engineers, pushing back on requirements where necessary to ensure the product meets quality standards with robust features. You'll decide which tests to run to test particular features using a mix of automation and manual techniques.
        Are you an experienced QA Test Engineer seeking a role where you can make a real impact? You could be progressing your career as a Senior QA Test Engineer at a global InsurTech business that is producing game changing technology. As a Senior QA Test Engineer you will collaborate with the Lead QA within a product team responsible for the quality of a flagship insurance underwriting product used globally by all major insurers. You'll build a strong understanding of the product; using a 'contract testing' mindset you'll perform non-functional and exploratory testing, form test strategy and collaborate closely with software engineers, pushing back on requirements where necessary to ensure the product meets quality standards with robust features. You'll decide which tests to run to test particular features using a mix of automation and manual techniques.
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        PREMIUM
        Technical Product Owner / Technical Product Manager / Software Product Owner / SaaS Product Owner Fully remote £55,000 - £60,000 Our client is passionate bout redefining engineering and AI automation. As we expand into more intelligent and scalable product offerings, we are looking for a Product Manager to lead a core product area, transforming strategic vision into tangible results. This is a hands-on, cross-functional role ideal for someone excited by high-impact delivery, AI innovation, and creating structured product systems in a rapidly growing tech team. As Product Owner, you'll own and drive the roadmap for one of our core product areas. We are looking for someone who thrives in fast-paced environments and enjoys taking an idea from concept to customer impact.
        Technical Product Owner / Technical Product Manager / Software Product Owner / SaaS Product Owner Fully remote £55,000 - £60,000 Our client is passionate bout redefining engineering and AI automation. As we expand into more intelligent and scalable product offerings, we are looking for a Product Manager to lead a core product area, transforming strategic vision into tangible results. This is a hands-on, cross-functional role ideal for someone excited by high-impact delivery, AI innovation, and creating structured product systems in a rapidly growing tech team. As Product Owner, you'll own and drive the roadmap for one of our core product areas. We are looking for someone who thrives in fast-paced environments and enjoys taking an idea from concept to customer impact.
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        FEATURED
        About Us Hello, we are Red Engine, the team behind the award-winning global brands Flight Club and Electric Shuffle. We're obsessed with disrupting the hospitality industry by creating and delivering the best possible experience - across all venues, products and brands. Our central team covers the full spectrum of skills needed to bring each concept to life from design to marketing, sales to interior design, people and training, to finance, gaming and HR and everything in between. Were not just a team of people, we are dreamers, artists, rocket scientists, content curators, forward thinkers and the industrys finest. We love what we do and are proud to be included in the Sunday Times Best Places to Work 2024
        About Us Hello, we are Red Engine, the team behind the award-winning global brands Flight Club and Electric Shuffle. We're obsessed with disrupting the hospitality industry by creating and delivering the best possible experience - across all venues, products and brands. Our central team covers the full spectrum of skills needed to bring each concept to life from design to marketing, sales to interior design, people and training, to finance, gaming and HR and everything in between. Were not just a team of people, we are dreamers, artists, rocket scientists, content curators, forward thinkers and the industrys finest. We love what we do and are proud to be included in the Sunday Times Best Places to Work 2024
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        PREMIUMNEW

        Senior Software Developer

        Tech 4
        E10, East London
        £64,000 per annum + excellent benefits
        Highly successful and fast growing organisation has an exciting opportunity for a Senior Software Developer (PYTHON/AWS/REACT). They are looking for a talented individual who will design, implement, and maintain their publishing software, systems, and customer-facing digital products. Requirements * Design and implement systems and software to meet requirements using appropriate tools and methods. * Promote the creation of high-quality code by commitment to practices such as test-driven development, pair programming and code review. * Be responsible for the technical development of all stages of software creation, including testing; ensure that implementation meets security, performance, and safety requirements. * Suggest improvements to the code base, development processes, tooling and working practices.
        Highly successful and fast growing organisation has an exciting opportunity for a Senior Software Developer (PYTHON/AWS/REACT). They are looking for a talented individual who will design, implement, and maintain their publishing software, systems, and customer-facing digital products. Requirements * Design and implement systems and software to meet requirements using appropriate tools and methods. * Promote the creation of high-quality code by commitment to practices such as test-driven development, pair programming and code review. * Be responsible for the technical development of all stages of software creation, including testing; ensure that implementation meets security, performance, and safety requirements. * Suggest improvements to the code base, development processes, tooling and working practices.
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        NEW

        Senior Python Developer

        Tech 4
        E10, East London
        £64,000 per annum + excellent benefits
        Highly successful and fast growing organisation has an exciting opportunity for a Senior Python Developer (PYTHON/AWS/REACT). They are looking for a talented individual who will design, implement, and maintain their publishing software, systems, and customer-facing digital products. Requirements * Design and implement systems and software to meet requirements using appropriate tools and methods. * Promote the creation of high-quality code by commitment to practices such as test-driven development, pair programming and code review. * Be responsible for the technical development of all stages of software creation, including testing; ensure that implementation meets security, performance, and safety requirements. * Suggest improvements to the code base, development processes, tooling and working practices.
        Highly successful and fast growing organisation has an exciting opportunity for a Senior Python Developer (PYTHON/AWS/REACT). They are looking for a talented individual who will design, implement, and maintain their publishing software, systems, and customer-facing digital products. Requirements * Design and implement systems and software to meet requirements using appropriate tools and methods. * Promote the creation of high-quality code by commitment to practices such as test-driven development, pair programming and code review. * Be responsible for the technical development of all stages of software creation, including testing; ensure that implementation meets security, performance, and safety requirements. * Suggest improvements to the code base, development processes, tooling and working practices.
        more
        NEW
        A leading retailer is looking for an HR Data Analyst (PowerBI, Workday, HR, DAX) to join a major transformation project. As the HR Data Analyst (PowerBI, Workday, HR, DAX) you have excellent skills/experience with PowerBI, Workday and HR, being responsible for designing, building, testing and maintaining PowerBI Dashboards, ensuring critical processes meet business requirements. You will have solid knowledge of Alteryx and Workday APIs to support with mapping impacts and potential rebuilds, whilst creating and maintaining technical documentation, providing expertise on best practices and support troubleshooting and enhancement initiatives. Skills and Experience - PowerBI - Workday and HR experience - API experience with Alteryx and Workday - Designing, Building, Testing and Maintaining PowerBI Dashboards for Talent Acquisition, Talent Review and People Structures
        A leading retailer is looking for an HR Data Analyst (PowerBI, Workday, HR, DAX) to join a major transformation project. As the HR Data Analyst (PowerBI, Workday, HR, DAX) you have excellent skills/experience with PowerBI, Workday and HR, being responsible for designing, building, testing and maintaining PowerBI Dashboards, ensuring critical processes meet business requirements. You will have solid knowledge of Alteryx and Workday APIs to support with mapping impacts and potential rebuilds, whilst creating and maintaining technical documentation, providing expertise on best practices and support troubleshooting and enhancement initiatives. Skills and Experience - PowerBI - Workday and HR experience - API experience with Alteryx and Workday - Designing, Building, Testing and Maintaining PowerBI Dashboards for Talent Acquisition, Talent Review and People Structures
        more
        NEW
        A leading retailer is looking for a PowerBI Data Analyst (Workday, HR, DAX) to join a major transformation project. As the PowerBI Data Analyst (Workday, HR, DAX) you have excellent skills/experience with PowerBI, Workday and HR, being responsible for designing, building, testing and maintaining PowerBI Dashboards, ensuring critical processes meet business requirements. You will have solid knowledge of Alteryx and Workday APIs to support with mapping impacts and potential rebuilds, whilst creating and maintaining technical documentation, providing expertise on best practices and support troubleshooting and enhancement initiatives. Skills and Experience - PowerBI - Workday and HR experience - API experience with Alteryx and Workday - Designing, Building, Testing and Maintaining PowerBI Dashboards for Talent Acquisition, Talent Review and People Structures
        A leading retailer is looking for a PowerBI Data Analyst (Workday, HR, DAX) to join a major transformation project. As the PowerBI Data Analyst (Workday, HR, DAX) you have excellent skills/experience with PowerBI, Workday and HR, being responsible for designing, building, testing and maintaining PowerBI Dashboards, ensuring critical processes meet business requirements. You will have solid knowledge of Alteryx and Workday APIs to support with mapping impacts and potential rebuilds, whilst creating and maintaining technical documentation, providing expertise on best practices and support troubleshooting and enhancement initiatives. Skills and Experience - PowerBI - Workday and HR experience - API experience with Alteryx and Workday - Designing, Building, Testing and Maintaining PowerBI Dashboards for Talent Acquisition, Talent Review and People Structures
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        NEW
        Start: ASAP Duration: 6 months Pay: up to £510 per day (inside IR35) Location: Guildford (2-days per week) We're seeking a Senior Infrastructure Solution Architect for a high-impact role within a fast-moving, regulated organisation. You'll be responsible for designing repeatable infrastructure patterns and secure, resilient solutions that align with business and IT strategy. This is a senior-level role requiring strong technical expertise and the ability to engage with stakeholders at all levels. - Create and maintain infrastructure solution designs and architecture patterns - Translate business requirements into secure, scalable, and supportable technology solutions - Identify risks and propose practical mitigations - Collaborate closely with business and technical teams to influence architecture direction - Support the design and delivery of mission-critical systems
        Start: ASAP Duration: 6 months Pay: up to £510 per day (inside IR35) Location: Guildford (2-days per week) We're seeking a Senior Infrastructure Solution Architect for a high-impact role within a fast-moving, regulated organisation. You'll be responsible for designing repeatable infrastructure patterns and secure, resilient solutions that align with business and IT strategy. This is a senior-level role requiring strong technical expertise and the ability to engage with stakeholders at all levels. - Create and maintain infrastructure solution designs and architecture patterns - Translate business requirements into secure, scalable, and supportable technology solutions - Identify risks and propose practical mitigations - Collaborate closely with business and technical teams to influence architecture direction - Support the design and delivery of mission-critical systems
        more
        NEW

        Senior Java Developer Spring Boot

        Client Server
        EC1, City of London
        £70000 - £80000 per annum + bonus + benefits
        Senior Java Developer / Backend Software Engineer (Spring Boot) London to £80k Well established trading brokerage is seeking a Senior Java Developer as they expand into UK markets. As a Senior Java Developer, you'll join a small technology team building Greenfield trading systems from scratch, working in a start-up environment with backing from the larger organisation. You'll take ownership, working across the full development lifecycle and will quickly see the impact of your work, developing high quality, scalable and secure trading applications with a focus on backend Java development and API implementation within an AWS environment. You'll join a team of finance entrepreneurs and technologists in City based offices with smart dress code on a fulltime basis.
        Senior Java Developer / Backend Software Engineer (Spring Boot) London to £80k Well established trading brokerage is seeking a Senior Java Developer as they expand into UK markets. As a Senior Java Developer, you'll join a small technology team building Greenfield trading systems from scratch, working in a start-up environment with backing from the larger organisation. You'll take ownership, working across the full development lifecycle and will quickly see the impact of your work, developing high quality, scalable and secure trading applications with a focus on backend Java development and API implementation within an AWS environment. You'll join a team of finance entrepreneurs and technologists in City based offices with smart dress code on a fulltime basis.
        more
        PREMIUMNEW
        Job Title:Senior Python Developer (Python/Django) Location:Fully Remote Job Type:Full-Time Salary 80k - 100k A fast-growing tech company revolutionizing the e-commerce/data analytics sector with cutting-edge software solutions. Join their dynamic engineering team and contribute to innovative projects. We're looking for a passionate Python Developer (Python/Django) with 5 + years of experience. This role offers the opportunity to work in a fast-paced, collaborative environment and grow your skills. * Develop and maintain scalable applications using Python (Django). * Build and integrate APIs and third-party services. * Participate in Agile development cycles and CI/CD processes. * Optimize applications for performance and scalability. * Collaborate with cross-functional teams. * Computer Science or STEM degree from a top Russell Group University (1st or 2:1).
        Job Title:Senior Python Developer (Python/Django) Location:Fully Remote Job Type:Full-Time Salary 80k - 100k A fast-growing tech company revolutionizing the e-commerce/data analytics sector with cutting-edge software solutions. Join their dynamic engineering team and contribute to innovative projects. We're looking for a passionate Python Developer (Python/Django) with 5 + years of experience. This role offers the opportunity to work in a fast-paced, collaborative environment and grow your skills. * Develop and maintain scalable applications using Python (Django). * Build and integrate APIs and third-party services. * Participate in Agile development cycles and CI/CD processes. * Optimize applications for performance and scalability. * Collaborate with cross-functional teams. * Computer Science or STEM degree from a top Russell Group University (1st or 2:1).
        more

        PHP Laravel Developer

        Ripple Recruitment Ltd
        BR5, Orpington
        Up to £75,000 per annum
        Imagine starting your day with a freshly brewed coffee and a team huddle thats buzzing with energy, ideas, and ambition. Its Monday, and as always, youre at the heart of innovation in our office. As a PHP Laravel Developer in our talented team, your role reaches far beyond writing code - youre building the architecture that powers unforgettable digital experiences for users across the UK. Youre part of a company leading the digital entertainment evolution. Here, your work has real impact. Every line of code you commit helps shape a platform that brings daily engagement, thrill, and value to thousands. Youre involved in the full lifecycle of development - from idea to implementation - ensuring every feature is both robust and elegant. Youve been searching for a role where you can fully own your craft.
        Imagine starting your day with a freshly brewed coffee and a team huddle thats buzzing with energy, ideas, and ambition. Its Monday, and as always, youre at the heart of innovation in our office. As a PHP Laravel Developer in our talented team, your role reaches far beyond writing code - youre building the architecture that powers unforgettable digital experiences for users across the UK. Youre part of a company leading the digital entertainment evolution. Here, your work has real impact. Every line of code you commit helps shape a platform that brings daily engagement, thrill, and value to thousands. Youre involved in the full lifecycle of development - from idea to implementation - ensuring every feature is both robust and elegant. Youve been searching for a role where you can fully own your craft.
        more
        * £500-£525 pd * Outside IR35 * 12 months rolling * 2 days on-site, London Thus, playing a key role in supporting top-line traffic and conversion rates. Experience with Elastic Search would be more than beneficial, and any exposure to Blaze or similar would be very welcome, but not a necessity as this would be handled directly by the CRM team. Scope of Work * Own and manage the product backlog, prioritising items based on business value, data, and the team's core objective to help users to easily search, browse and navigate. * Responsible for the the product road-map, including both front-end search user experiences and APIs to downstream cataloguing systems and data stores. * Lead a blended team of contractors (UX, Design, BA and more...) and full stack third party development and testing teams using agile methodologies.
        * £500-£525 pd * Outside IR35 * 12 months rolling * 2 days on-site, London Thus, playing a key role in supporting top-line traffic and conversion rates. Experience with Elastic Search would be more than beneficial, and any exposure to Blaze or similar would be very welcome, but not a necessity as this would be handled directly by the CRM team. Scope of Work * Own and manage the product backlog, prioritising items based on business value, data, and the team's core objective to help users to easily search, browse and navigate. * Responsible for the the product road-map, including both front-end search user experiences and APIs to downstream cataloguing systems and data stores. * Lead a blended team of contractors (UX, Design, BA and more...) and full stack third party development and testing teams using agile methodologies.
        more
        * £500-£525 pd * Outside IR35 * 12 months rolling * 2 days on-site, London Thus, playing a key role in supporting top-line traffic and conversion rates. Experience with Elastic Search would be more than beneficial, and any exposure to Blaze or similar would be very welcome, but not a necessity as this would be handled directly by the CRM team. Scope of Work * Own and manage the product backlog, prioritising items based on business value, data, and the team's core objective to help users to easily search, browse and navigate. * Responsible for the the product road-map, including both front-end search user experiences and APIs to downstream cataloguing systems and data stores. * Lead a blended team of contractors (UX, Design, BA and more...) and full stack third party development and testing teams using agile methodologies.
        * £500-£525 pd * Outside IR35 * 12 months rolling * 2 days on-site, London Thus, playing a key role in supporting top-line traffic and conversion rates. Experience with Elastic Search would be more than beneficial, and any exposure to Blaze or similar would be very welcome, but not a necessity as this would be handled directly by the CRM team. Scope of Work * Own and manage the product backlog, prioritising items based on business value, data, and the team's core objective to help users to easily search, browse and navigate. * Responsible for the the product road-map, including both front-end search user experiences and APIs to downstream cataloguing systems and data stores. * Lead a blended team of contractors (UX, Design, BA and more...) and full stack third party development and testing teams using agile methodologies.
        more
        Robert Half Technology are assisting a market leading real estate organisation to recruit a Salesforce Developer on a contract basis - onsite required - London based - outside IR35 Role * An experienced Salesforce Developer that can support the design, development, and optimisation of their Salesforce platform. * The Salesforce Developer will design, develop, test, and deploy custom Salesforce solutions using Apex, Visualforce, Lightning Web Components (LWC), and other technologies. * Customise standard and custom objects, workflows, process builders, and validation rules. * Integrate Salesforce with third-party applications and services via REST/SOAP APIs. * Participate in code reviews and ensure adherence to best practices and coding standards. * Troubleshoot issues and provide timely resolutions.
        Robert Half Technology are assisting a market leading real estate organisation to recruit a Salesforce Developer on a contract basis - onsite required - London based - outside IR35 Role * An experienced Salesforce Developer that can support the design, development, and optimisation of their Salesforce platform. * The Salesforce Developer will design, develop, test, and deploy custom Salesforce solutions using Apex, Visualforce, Lightning Web Components (LWC), and other technologies. * Customise standard and custom objects, workflows, process builders, and validation rules. * Integrate Salesforce with third-party applications and services via REST/SOAP APIs. * Participate in code reviews and ensure adherence to best practices and coding standards. * Troubleshoot issues and provide timely resolutions.
        more

        Front End Developer - Hybrid Remote

        Vertech Group (UK) Ltd
        N7, North London
        From £65,000 to £74,000 per annum + Benefits
        Front End Developer Salary:Circa 65K 74K + Benefits Location:3 days per week from home / 2 days in London Front End Developerrequired by fast-growing, revolutionary tech company! This is a varied and challenging role where youll take the lead on front-end development, building scalable, high-performance interfaces and contributing to key architectural decisions (80% frontend / 20% backend) * At least 5yrs development experience * Expertise in React, TypeScript/JavaScript * Experience in Next.js, Tailwind CSS, or Styled Components * Understanding of RESTful APIs * Familiar with CI/CD Tremendous opportunity offering plenty of scope for career progression in a friendly, innovative environment where youll be able to bring ideas and keep up-to-date with the latest technologies! Apply now for FULL details!
        Front End Developer Salary:Circa 65K 74K + Benefits Location:3 days per week from home / 2 days in London Front End Developerrequired by fast-growing, revolutionary tech company! This is a varied and challenging role where youll take the lead on front-end development, building scalable, high-performance interfaces and contributing to key architectural decisions (80% frontend / 20% backend) * At least 5yrs development experience * Expertise in React, TypeScript/JavaScript * Experience in Next.js, Tailwind CSS, or Styled Components * Understanding of RESTful APIs * Familiar with CI/CD Tremendous opportunity offering plenty of scope for career progression in a friendly, innovative environment where youll be able to bring ideas and keep up-to-date with the latest technologies! Apply now for FULL details!
        more
        NEW

        Front End Developer - Hybrid Remote

        VERTECH GROUP (UK) LTD
        N7, North London
        From £65,000 to £74,000 per annum + Benefits
        Front End Developer Salary: Circa 65K 74K + Benefits Location: 3 days per week from home / 2 days in London Front End Developer required by fast-growing, revolutionary tech company! This is a varied and challenging role where youll take the lead on front-end development, building scalable, high-performance interfaces and contributing to key architectural decisions (80% frontend / 20% backend) * At least 5yrs development experience * Expertise in React, TypeScript/JavaScript * Experience in Next.js, Tailwind CSS, or Styled Components * Understanding of RESTful APIs * Familiar with CI/CD Tremendous opportunity offering plenty of scope for career progression in a friendly, innovative environment where youll be able to bring ideas and keep up-to-date with the latest technologies! Apply now for FULL details!
        Front End Developer Salary: Circa 65K 74K + Benefits Location: 3 days per week from home / 2 days in London Front End Developer required by fast-growing, revolutionary tech company! This is a varied and challenging role where youll take the lead on front-end development, building scalable, high-performance interfaces and contributing to key architectural decisions (80% frontend / 20% backend) * At least 5yrs development experience * Expertise in React, TypeScript/JavaScript * Experience in Next.js, Tailwind CSS, or Styled Components * Understanding of RESTful APIs * Familiar with CI/CD Tremendous opportunity offering plenty of scope for career progression in a friendly, innovative environment where youll be able to bring ideas and keep up-to-date with the latest technologies! Apply now for FULL details!
        more
        FEATUREDNEW

        Senior Full Stack Developer Java JavaScript React

        Client Server
        EC1, City of London
        £70000 - £80000 per annum + bonus + benefits
        Senior Full Stack Developer / Software Engineer (Java JavaScript React) London to £80k Well established trading brokerage is seeking a Senior Full Stack Developer as they expand into UK markets. As a Senior Full Stack Developer, you'll join a small technology team building Greenfield trading systems from scratch, working in a start-up environment with backing from the larger organisation. You'll take ownership, working across the full development lifecycle and will quickly see the impact of your work, developing high quality, scalable and secure trading applications, working across the full tech stack from Java on the backend through to JavaScript / TypeScript, React and React Native front end work. You'll join a team of finance entrepreneurs and technologists in City based offices with smart dress code on a fulltime basis.
        Senior Full Stack Developer / Software Engineer (Java JavaScript React) London to £80k Well established trading brokerage is seeking a Senior Full Stack Developer as they expand into UK markets. As a Senior Full Stack Developer, you'll join a small technology team building Greenfield trading systems from scratch, working in a start-up environment with backing from the larger organisation. You'll take ownership, working across the full development lifecycle and will quickly see the impact of your work, developing high quality, scalable and secure trading applications, working across the full tech stack from Java on the backend through to JavaScript / TypeScript, React and React Native front end work. You'll join a team of finance entrepreneurs and technologists in City based offices with smart dress code on a fulltime basis.
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        PREMIUMNEW
        My client is looking for a talentedMagento Developerwith strong backend experience to join their dynamic dev team. If you enjoy building custom ecommerce solutions, integrating complex systems, and collaborating in a supportive tech environment, this could be the role for you. This role is predominately remote, although the team meet up onsite once a month near Farringdon. There is no specific requirement to attend every month, however some flexibility would be beneficial. The Role Youll be responsible for delivering tailored features and functionality across a variety of ecommerce projects. * Developing and maintaining bespoke Magento functionality. * Working with the development team to ensure new code aligns with the Magento framework and delivers great performance. * Reviewing code, pull requests, and supporting peer development.
        My client is looking for a talentedMagento Developerwith strong backend experience to join their dynamic dev team. If you enjoy building custom ecommerce solutions, integrating complex systems, and collaborating in a supportive tech environment, this could be the role for you. This role is predominately remote, although the team meet up onsite once a month near Farringdon. There is no specific requirement to attend every month, however some flexibility would be beneficial. The Role Youll be responsible for delivering tailored features and functionality across a variety of ecommerce projects. * Developing and maintaining bespoke Magento functionality. * Working with the development team to ensure new code aligns with the Magento framework and delivers great performance. * Reviewing code, pull requests, and supporting peer development.
        more
        NEW
        Up to £600 per day Outside IR35 London (Hybrid) The Role As a Product Owner with a specialist focus on data mapping, you’ll be at the heart of enabling robust, scalable, and intelligent data flows across our internal systems. You'll define and deliver product capabilities that ensure seamless data flow between systems, APIs, and third-party platforms, driving clarity, consistency, and business value across our data landscape. * Own the data mapping product area from vision to execution. * Translate business needs into detailed data mapping requirements and user stories. * Collaborate with engineering, data, and compliance teams to implement mappings across internal systems. * Ensure data accuracy, consistency, and traceability across the platform. * Maintain documentation and support agile delivery practices.
        Up to £600 per day Outside IR35 London (Hybrid) The Role As a Product Owner with a specialist focus on data mapping, you’ll be at the heart of enabling robust, scalable, and intelligent data flows across our internal systems. You'll define and deliver product capabilities that ensure seamless data flow between systems, APIs, and third-party platforms, driving clarity, consistency, and business value across our data landscape. * Own the data mapping product area from vision to execution. * Translate business needs into detailed data mapping requirements and user stories. * Collaborate with engineering, data, and compliance teams to implement mappings across internal systems. * Ensure data accuracy, consistency, and traceability across the platform. * Maintain documentation and support agile delivery practices.
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        FEATUREDNEW
        Cardiff Based - Hybrid Working A large financial organisation is seeking a diligent Business Test Analyst to support the development of business test strategies and test plans. This role involves collaborating with various stakeholders to ensure the delivery of high-quality testing outcomes that align with business requirements. Responsibilities * Contribute to and support the development of business test strategies and test plans across multiple markets. * Demonstrate strong capabilities in functional and business acceptance testing while collaborating effectively with business stakeholders. * Translate business requirements and operational workflows into test scenarios and relevant test cases. * Define, document, and maintain business test scenarios and test cases in collaboration with business stakeholders, analysts, and product teams.
        Cardiff Based - Hybrid Working A large financial organisation is seeking a diligent Business Test Analyst to support the development of business test strategies and test plans. This role involves collaborating with various stakeholders to ensure the delivery of high-quality testing outcomes that align with business requirements. Responsibilities * Contribute to and support the development of business test strategies and test plans across multiple markets. * Demonstrate strong capabilities in functional and business acceptance testing while collaborating effectively with business stakeholders. * Translate business requirements and operational workflows into test scenarios and relevant test cases. * Define, document, and maintain business test scenarios and test cases in collaboration with business stakeholders, analysts, and product teams.
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        Functional Consultant - D365 Field Service

        Kinetech Recruitment
        EC1V, City of London, EC1V 2NX
        Up to £60,000 per annum + Bonus + Benefits
        Functional Consultant Microsoft Dynamics 365 Field Service & CE Fully Remote (UK-based) Salary up to £60,000 + bonus An ambitious early-stage business is looking for a Functional Consultant for Dynamics 365 Field Service and other CE modules (Customer Service / Sales) a critical tool for the business. The Role As Functional Consultant, you will take full ownership of Microsoft Dynamics Field Service product, acting as the vital link between business operations and technical solutions. You will manage change requests, and oversee the integration of acquired businesses into the group platform. Key Responsibilities * Help to define Product Strategy:Shape the vision and roadmap for the Dynamics 365 Field Service to support business growth. * Collaborate with Stakeholders:Gather, prioritise, and translate business needs into detailed plans.
        Functional Consultant Microsoft Dynamics 365 Field Service & CE Fully Remote (UK-based) Salary up to £60,000 + bonus An ambitious early-stage business is looking for a Functional Consultant for Dynamics 365 Field Service and other CE modules (Customer Service / Sales) a critical tool for the business. The Role As Functional Consultant, you will take full ownership of Microsoft Dynamics Field Service product, acting as the vital link between business operations and technical solutions. You will manage change requests, and oversee the integration of acquired businesses into the group platform. Key Responsibilities * Help to define Product Strategy:Shape the vision and roadmap for the Dynamics 365 Field Service to support business growth. * Collaborate with Stakeholders:Gather, prioritise, and translate business needs into detailed plans.
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        Java Developer

        Data Inc. (UK) Ltd
        W1, Central London
        From £400 to £500 per day
        Job Title: Java Developer Location: London UK- 5 Days onsite Vacancy Type:Contract- 12 Months Pay rate:- - * 3+ years of software development experience in one or more general purpose programming languages such as Java / JavaScript / Python, and expected to be hands-on to software development tasks Solid Experience in AWS Cloud development/deployment (other Cloud dev exp. would be a plus) * Experience implementing REST APIs (knowledge in API security would be a plus), unit tests and using a test-driven development approach and associated testing tools Familiar with SDLC process Experience in smart contract programming to develop commercial solutions (e.g. EVM, DAML), on private and public blockchains would be a plus
        Job Title: Java Developer Location: London UK- 5 Days onsite Vacancy Type:Contract- 12 Months Pay rate:- - * 3+ years of software development experience in one or more general purpose programming languages such as Java / JavaScript / Python, and expected to be hands-on to software development tasks Solid Experience in AWS Cloud development/deployment (other Cloud dev exp. would be a plus) * Experience implementing REST APIs (knowledge in API security would be a plus), unit tests and using a test-driven development approach and associated testing tools Familiar with SDLC process Experience in smart contract programming to develop commercial solutions (e.g. EVM, DAML), on private and public blockchains would be a plus
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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 297 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.