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        143 Contract API jobs in The City, City of London + 20 miles

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        Senior Backend Developer

        Quinyx
        London
        Competitive
        Do you want to help us unleash the secret to how happy employees create a happy business? We are an innovative, agile, and continuously growing modern tech company on a path to improving the work lives of millions around the world. We develop workforce management solutions - software that makes scheduling and time reporting more smooth and more flexible for almost a million users worldwide! We value passion, quality, innovation, trust, and collaboration . Youll be given the opportunity to make an impact and directly contribute to our success, bring new ideas, and have full ownership of your area. Are you curious and ready to take the first steps on an awesome journey and make magic happen with us? As a member of Quinyx, you will be part of an inclusive and diverse workplace where everyone is allowed to be themselves and thrive.
        Do you want to help us unleash the secret to how happy employees create a happy business? We are an innovative, agile, and continuously growing modern tech company on a path to improving the work lives of millions around the world. We develop workforce management solutions - software that makes scheduling and time reporting more smooth and more flexible for almost a million users worldwide! We value passion, quality, innovation, trust, and collaboration . Youll be given the opportunity to make an impact and directly contribute to our success, bring new ideas, and have full ownership of your area. Are you curious and ready to take the first steps on an awesome journey and make magic happen with us? As a member of Quinyx, you will be part of an inclusive and diverse workplace where everyone is allowed to be themselves and thrive.
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        About us At Xelix, we work with some of the worlds largest companies to automate and strengthen their financial controls. Our AI solutions redefine how Accounts Payable teams operate - moving from manual processes to automated, intelligent workflows. Xelix is a fast-paced scale-up - things move fast and expectations are high. We raised our Series B with Insight Partners in June 2025 and are expanding aggressively, whilst remaining profitable. We have over 100 talented people pulling together to achieve our goals. Everyone is trusted to take ownership, move fast and have a meaningful impact. We prioritise personal and professional growth, keep things fun & we love to celebrate a milestone together. In this role youll grow, be challenged and help shape the future of Xelix. If youre excited about building something special with us, wed love to hear from you.
        About us At Xelix, we work with some of the worlds largest companies to automate and strengthen their financial controls. Our AI solutions redefine how Accounts Payable teams operate - moving from manual processes to automated, intelligent workflows. Xelix is a fast-paced scale-up - things move fast and expectations are high. We raised our Series B with Insight Partners in June 2025 and are expanding aggressively, whilst remaining profitable. We have over 100 talented people pulling together to achieve our goals. Everyone is trusted to take ownership, move fast and have a meaningful impact. We prioritise personal and professional growth, keep things fun & we love to celebrate a milestone together. In this role youll grow, be challenged and help shape the future of Xelix. If youre excited about building something special with us, wed love to hear from you.
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        Summary The Wikimedia Foundation is seeking a Senior Software Engineer to join the team supporting the Wikidata Platform the structured data backbone of Wikimedia projects and a key part of the global open knowledge ecosystem. You'll help scale and sustain the Wikidata Query Service (WDQS) and related platform services that power tools, features, communities, and research efforts across Wikimedia projects and beyond. This role combines backend engineering and operations ownership. You'll implement high-scale, production-grade services while ensuring performance, reliability, and maintainability. Working closely with the technical and product leads, you'll contribute to shaping the future of how the world queries and interacts with structured, linked data. Important : We are a fully remote team.
        Summary The Wikimedia Foundation is seeking a Senior Software Engineer to join the team supporting the Wikidata Platform the structured data backbone of Wikimedia projects and a key part of the global open knowledge ecosystem. You'll help scale and sustain the Wikidata Query Service (WDQS) and related platform services that power tools, features, communities, and research efforts across Wikimedia projects and beyond. This role combines backend engineering and operations ownership. You'll implement high-scale, production-grade services while ensuring performance, reliability, and maintainability. Working closely with the technical and product leads, you'll contribute to shaping the future of how the world queries and interacts with structured, linked data. Important : We are a fully remote team.
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        OrganOx is an innovative, fast-paced, global medical device company with a mission to save lives by making every donated organ count. We are a commercial stage organ technology company, spun out of the University of Oxford in 2008, committed to improving transplantation outcomes throughout the world. The companys first product, the OrganOx metra normothermic machine perfusion (NMP) system for liver transplantation, has been used to support more than 5,000 liver transplant operations globally. Position Summary The Senior Full Stack Web Developer will be a key internal resource in the Digital department and will deliver on projects to build research tools and production solutions to dovetail with outsourced development teams while being an asset to the specialist design and development work conducted in-house.
        OrganOx is an innovative, fast-paced, global medical device company with a mission to save lives by making every donated organ count. We are a commercial stage organ technology company, spun out of the University of Oxford in 2008, committed to improving transplantation outcomes throughout the world. The companys first product, the OrganOx metra normothermic machine perfusion (NMP) system for liver transplantation, has been used to support more than 5,000 liver transplant operations globally. Position Summary The Senior Full Stack Web Developer will be a key internal resource in the Digital department and will deliver on projects to build research tools and production solutions to dovetail with outsourced development teams while being an asset to the specialist design and development work conducted in-house.
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        At Capgemini Invent, we believe difference drives change. As inventive transformation consultants, we blend our strategic, creative and scientific capabilities, collaborating closely with clients to deliver cutting-edge solutions. Join us to drive transformation tailored to our client's challenges of today and tomorrow. Informed and validated by science and data. Superpowered by creativity and design. All underpinned by technology created with purpose. As a Agile Business Analyst Consultant, you will be joining the growing and exciting Digital Excellence community who are continually sharing knowledge and expertise. We are all passionate about user-centred design, critical thinking, problem solving and designing and building digital services and products.
        At Capgemini Invent, we believe difference drives change. As inventive transformation consultants, we blend our strategic, creative and scientific capabilities, collaborating closely with clients to deliver cutting-edge solutions. Join us to drive transformation tailored to our client's challenges of today and tomorrow. Informed and validated by science and data. Superpowered by creativity and design. All underpinned by technology created with purpose. As a Agile Business Analyst Consultant, you will be joining the growing and exciting Digital Excellence community who are continually sharing knowledge and expertise. We are all passionate about user-centred design, critical thinking, problem solving and designing and building digital services and products.
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        Why work for us? A career at Janus Henderson is more than a job, its about investing in a brighter future together. Our Mission at Janus Henderson is to help clients define and achieve superior financial outcomes through differentiated insights, disciplined investments, and world-class service. We will do this by protecting and growing our core business, amplifying our strengths and diversifying where we have the right. Clients Come First - Always | Execution Supersedes Intention | Together We Win | Diversity Improves Results | Truth Builds Trust If our mission, values, and purpose align with your own, we would love to hear from you! Your opportunity The Head of Corporate Technology leads the strategy and execution of technology initiatives supporting all internal corporate functions of an asset management firm.
        Why work for us? A career at Janus Henderson is more than a job, its about investing in a brighter future together. Our Mission at Janus Henderson is to help clients define and achieve superior financial outcomes through differentiated insights, disciplined investments, and world-class service. We will do this by protecting and growing our core business, amplifying our strengths and diversifying where we have the right. Clients Come First - Always | Execution Supersedes Intention | Together We Win | Diversity Improves Results | Truth Builds Trust If our mission, values, and purpose align with your own, we would love to hear from you! Your opportunity The Head of Corporate Technology leads the strategy and execution of technology initiatives supporting all internal corporate functions of an asset management firm.
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        Job Description Purpose of the role To develop, implement and maintain solutions that support the safeguarding of the banks systems and sensitive information. Accountabilities * Provision of subject matter expertise on security systems and engineering patterns. * Development and implementation of protocols, algorithms, and software applications to protect sensitive data and systems. * Management and protection of secrets, ensuring that they are securely generated, stored, and used. * Execution of audits to monitor, identify and assess vulnerabilities in the banks infrastructure/software and support the response to potential security breaches. * Identification of advancements in to support the innovation and adoption of new cryptographic technologies and techniques.
        Job Description Purpose of the role To develop, implement and maintain solutions that support the safeguarding of the banks systems and sensitive information. Accountabilities * Provision of subject matter expertise on security systems and engineering patterns. * Development and implementation of protocols, algorithms, and software applications to protect sensitive data and systems. * Management and protection of secrets, ensuring that they are securely generated, stored, and used. * Execution of audits to monitor, identify and assess vulnerabilities in the banks infrastructure/software and support the response to potential security breaches. * Identification of advancements in to support the innovation and adoption of new cryptographic technologies and techniques.
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        Description At Xe, we live currencies. We provide a comprehensive range of currency services and products, including our Currency Converter, Market Analysis, Currency Data API and quick, easy, secure Money Transfers for individuals and businesses. Last year, we helped over 300 million people access information about the currencies that matter to them and over 225,000 people used us to send money overseas. * AMBITION - We dream big, try things out and always ask why not? and what if? Were ambitious in our thinking and our delivery * RESPONSIBILITY - We get involved, bring our perspective, and are always open to new ideas. We take personal responsibility * COMMUNITY - We value a sense of belonging, trusting each other and encouraging authenticity. We contribute to our community
        Description At Xe, we live currencies. We provide a comprehensive range of currency services and products, including our Currency Converter, Market Analysis, Currency Data API and quick, easy, secure Money Transfers for individuals and businesses. Last year, we helped over 300 million people access information about the currencies that matter to them and over 225,000 people used us to send money overseas. * AMBITION - We dream big, try things out and always ask why not? and what if? Were ambitious in our thinking and our delivery * RESPONSIBILITY - We get involved, bring our perspective, and are always open to new ideas. We take personal responsibility * COMMUNITY - We value a sense of belonging, trusting each other and encouraging authenticity. We contribute to our community
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        About The Role FDM is a global business and technology consultancy seeking a Java Developer to work for our client within the finance sector. This is initially a 12-month contract with the potential to extend and will be a hybrid role based in Farnborough. As a Java Developer, you will play a key role in designing, developing, and maintaining robust applications using Java and associated frameworks. You will work closely with cross-functional teams including DevOps, QA, and Product to deliver high-quality software solutions that align with business objectives. You will be expected to bring a proactive approach to problem-solving, contribute to technical discussions, and uphold best practices in secure and scalable application development.
        About The Role FDM is a global business and technology consultancy seeking a Java Developer to work for our client within the finance sector. This is initially a 12-month contract with the potential to extend and will be a hybrid role based in Farnborough. As a Java Developer, you will play a key role in designing, developing, and maintaining robust applications using Java and associated frameworks. You will work closely with cross-functional teams including DevOps, QA, and Product to deliver high-quality software solutions that align with business objectives. You will be expected to bring a proactive approach to problem-solving, contribute to technical discussions, and uphold best practices in secure and scalable application development.
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        Job Description Building trusted markets powered by our people. At Cboe Europe, we inspire our people to solve complex challenges together because what we do matters. We provide the financial infrastructure that powers the global economy. As a leading provider of market infrastructure and tradable products, Cboe delivers cutting-edge trading, clearing and investment solutions to market participants around the world. Were building inclusive ways to support professional and personal development while strengthening the trust weve earned as a global market leader. Our teams are empowered to share ideas, actively pursue them and bring on a challenge. As champions of internal mobility and access to opportunity, we encourage our people to go for it and equip our managers with the training to coach their teams to the next level.
        Job Description Building trusted markets powered by our people. At Cboe Europe, we inspire our people to solve complex challenges together because what we do matters. We provide the financial infrastructure that powers the global economy. As a leading provider of market infrastructure and tradable products, Cboe delivers cutting-edge trading, clearing and investment solutions to market participants around the world. Were building inclusive ways to support professional and personal development while strengthening the trust weve earned as a global market leader. Our teams are empowered to share ideas, actively pursue them and bring on a challenge. As champions of internal mobility and access to opportunity, we encourage our people to go for it and equip our managers with the training to coach their teams to the next level.
        more
        As a Web Experience Designer & Payload Developer, you will play a key role in shaping and building the next generation of our content-driven web experiences. You will be responsible for designing reusable templates, implementing them within Payload CMS, and creating modular components and widgets that allow our teams to scale content production efficiently. This hybrid role combines design sensibility with hands-on front-end development and CMS integration, ensuring our digital properties are both visually engaging and technically robust. Responsibilities * Design and deliver reusable page templates (e.g., product landing pages) that are brand-consistent and scalable. * Create designs in Figma for review. * Build and configure these templates in Payload CMS, ensuring editors can easily manage and repurpose them.
        As a Web Experience Designer & Payload Developer, you will play a key role in shaping and building the next generation of our content-driven web experiences. You will be responsible for designing reusable templates, implementing them within Payload CMS, and creating modular components and widgets that allow our teams to scale content production efficiently. This hybrid role combines design sensibility with hands-on front-end development and CMS integration, ensuring our digital properties are both visually engaging and technically robust. Responsibilities * Design and deliver reusable page templates (e.g., product landing pages) that are brand-consistent and scalable. * Create designs in Figma for review. * Build and configure these templates in Payload CMS, ensuring editors can easily manage and repurpose them.
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        API is seeking a seasoned professional to join our company in the role of Vice President of Operations. The VP of Operations leads and manages the operations teams in support of the clients in their vertical. The Vice President of Operations is a key leadership role responsible for overseeing the strategic and operational functions of client operations. This position requires a dynamic leader who can ensure operational excellence, optimize processes, and foster strong client relationships to drive organizational success. The VP will collaborate closely with senior leadership and clients to deliver exceptional results and ensure alignment with the companys vision and strategic goals. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.
        API is seeking a seasoned professional to join our company in the role of Vice President of Operations. The VP of Operations leads and manages the operations teams in support of the clients in their vertical. The Vice President of Operations is a key leadership role responsible for overseeing the strategic and operational functions of client operations. This position requires a dynamic leader who can ensure operational excellence, optimize processes, and foster strong client relationships to drive organizational success. The VP will collaborate closely with senior leadership and clients to deliver exceptional results and ensure alignment with the companys vision and strategic goals. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.
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        API is the global leader for crew accommodation solutions, and we are changing the way businesses manage travel. Our technology platform streamlines the entire crew planning process, making day-to-day operations more efficient and elevating the crew layover experience. APIs proprietary technology, mobile solutions and our experienced team are positioned to offer our clients a complete, end-to-end platform that integrates seamlessly into their process. We are looking for dynamic, creative, and tech savvy individuals to join our team. If you are passionate about hard work, providing impeccable service, technology, and solutions to our clients then API may be a great fit for you! This position is a fully remote opportunity within the United Kingdom (London Region).
        API is the global leader for crew accommodation solutions, and we are changing the way businesses manage travel. Our technology platform streamlines the entire crew planning process, making day-to-day operations more efficient and elevating the crew layover experience. APIs proprietary technology, mobile solutions and our experienced team are positioned to offer our clients a complete, end-to-end platform that integrates seamlessly into their process. We are looking for dynamic, creative, and tech savvy individuals to join our team. If you are passionate about hard work, providing impeccable service, technology, and solutions to our clients then API may be a great fit for you! This position is a fully remote opportunity within the United Kingdom (London Region).
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        at GWI (View all jobs) London, UK Location: London? Office requirement: Hybrid with one day per week in office Employment type: Permanent, Full time At GWI we're always looking for extraordinary people who thrive on making an extraordinary impact. Right now we're looking for a Legal Counsel to play a key role in our Legal team in London. If that's you, and making a difference gets you out of bed in the morning, keep reading. It could be the start of something, well, extraordinary. Sounds great, what will I be doing? As our Legal Counsel you'll you'll be the main point of the contact for commercial contracts here at GWI. You will drive proactive management and execution of contracts. This will include client contracts, NDAs, and vendor agreements.
        at GWI (View all jobs) London, UK Location: London? Office requirement: Hybrid with one day per week in office Employment type: Permanent, Full time At GWI we're always looking for extraordinary people who thrive on making an extraordinary impact. Right now we're looking for a Legal Counsel to play a key role in our Legal team in London. If that's you, and making a difference gets you out of bed in the morning, keep reading. It could be the start of something, well, extraordinary. Sounds great, what will I be doing? As our Legal Counsel you'll you'll be the main point of the contact for commercial contracts here at GWI. You will drive proactive management and execution of contracts. This will include client contracts, NDAs, and vendor agreements.
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        The Operations Center team provides 24-hour coordination and execution of client crew accommodation requests. In coordination with other departments, the Operations Manager ensures that the Operations Center team delivers efficient and timely completion of client requests while maintaining a strong focus on providing professional, courteous and friendly service to our valued customers. The Operations Manager facilitates problem resolution associated with planning, scheduling, systems and applications. Ensures that the Operations team successfully resolves issues such as delays and changes arising from unforeseen circumstances. This position has managerial responsibility for Supervisors, Operations Agents, Remote Agents, Client Onsite Agents, Client Service Specialists and other non-exempt team members within the Operations Center.
        The Operations Center team provides 24-hour coordination and execution of client crew accommodation requests. In coordination with other departments, the Operations Manager ensures that the Operations Center team delivers efficient and timely completion of client requests while maintaining a strong focus on providing professional, courteous and friendly service to our valued customers. The Operations Manager facilitates problem resolution associated with planning, scheduling, systems and applications. Ensures that the Operations team successfully resolves issues such as delays and changes arising from unforeseen circumstances. This position has managerial responsibility for Supervisors, Operations Agents, Remote Agents, Client Onsite Agents, Client Service Specialists and other non-exempt team members within the Operations Center.
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        The Operations Supervisor (Call Center) is responsible for the overall maintenance and supervision of the Operations Center office, assuring that all client crew accommodations are satisfied to the proper level of the Service Level Agreement (SLA). Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. * Supervises the Operations Agents activities to ensure efficient and effective customer service * Support while assuring all hotel and transportation requests are properly acted upon. * Monitors and oversees the timely execution of various department activities including workload queues, group email accounts, and faxes to ensure effective client service support. * Establishes and maintains effective communication with client functional departments to ensure client expectations are being met.
        The Operations Supervisor (Call Center) is responsible for the overall maintenance and supervision of the Operations Center office, assuring that all client crew accommodations are satisfied to the proper level of the Service Level Agreement (SLA). Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. * Supervises the Operations Agents activities to ensure efficient and effective customer service * Support while assuring all hotel and transportation requests are properly acted upon. * Monitors and oversees the timely execution of various department activities including workload queues, group email accounts, and faxes to ensure effective client service support. * Establishes and maintains effective communication with client functional departments to ensure client expectations are being met.
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        Snap Inc is a technology company. We believe the camera presents the greatest opportunity to improve the way people live and communicate. Snap contributes to human progress by empowering people to express themselves, live in the moment, learn about the world, and have fun together. The Companys three core products are Snapchat , a visual messaging app that enhances your relationships with friends, family, and the world; Lens Studio , an augmented reality platform that powers AR across Snapchat and other services; and its AR glasses, Spectacles . The Spectacles team is home to our hardware products with a world-class research & development team. We are focused on pushing the boundaries of what a camera can be, specifically overlaying computing on the real world. Next Generation Spectacles are our first pair of glasses that bring augmented reality to life.
        Snap Inc is a technology company. We believe the camera presents the greatest opportunity to improve the way people live and communicate. Snap contributes to human progress by empowering people to express themselves, live in the moment, learn about the world, and have fun together. The Companys three core products are Snapchat , a visual messaging app that enhances your relationships with friends, family, and the world; Lens Studio , an augmented reality platform that powers AR across Snapchat and other services; and its AR glasses, Spectacles . The Spectacles team is home to our hardware products with a world-class research & development team. We are focused on pushing the boundaries of what a camera can be, specifically overlaying computing on the real world. Next Generation Spectacles are our first pair of glasses that bring augmented reality to life.
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        If you are a current Jazz employee please apply via the Internal Career site. Jazz Pharmaceuticals is a global biopharma company whose purpose is to innovate to transform the lives of patients and their families. We are dedicated to developing life-changing medicines for people with serious diseases often with limited or no therapeutic options. We have a diverse portfolio of marketed medicines, including leading therapies for sleep disorders and epilepsy, and a growing portfolio of cancer treatments. Our patient-focused and science-driven approach powers pioneering research and development advancements across our robust pipeline of innovative therapeutics in oncology and neuroscience. Jazz is headquartered in Dublin, Ireland with research and development laboratories, manufacturing facilities and employees in multiple countries committed to serving patients worldwide.
        If you are a current Jazz employee please apply via the Internal Career site. Jazz Pharmaceuticals is a global biopharma company whose purpose is to innovate to transform the lives of patients and their families. We are dedicated to developing life-changing medicines for people with serious diseases often with limited or no therapeutic options. We have a diverse portfolio of marketed medicines, including leading therapies for sleep disorders and epilepsy, and a growing portfolio of cancer treatments. Our patient-focused and science-driven approach powers pioneering research and development advancements across our robust pipeline of innovative therapeutics in oncology and neuroscience. Jazz is headquartered in Dublin, Ireland with research and development laboratories, manufacturing facilities and employees in multiple countries committed to serving patients worldwide.
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        About Moonbug Entertainment Thank you for considering the Technical Operations Manager role with Moonbug Entertainment, an award-winning global entertainment company inspiring kids everywhere to laugh, learn and grow. The company is behind some of the biggest kids entertainment brands in the world including CoComelon and Blippi. Moonbug believes every child should have access to our entertaining and enriching content, which is why our shows are available on more than 150 video platforms globally including Netflix, Disney+, BBC iPlayer and YouTube Kids. Moonbug is also a global leader in pre-school music and audio experiences, available on 100+ audio platforms globally. Moonbug brands extend far beyond the screen to include streaming music, toys, games, books, live events, and even theme park exhibits.
        About Moonbug Entertainment Thank you for considering the Technical Operations Manager role with Moonbug Entertainment, an award-winning global entertainment company inspiring kids everywhere to laugh, learn and grow. The company is behind some of the biggest kids entertainment brands in the world including CoComelon and Blippi. Moonbug believes every child should have access to our entertaining and enriching content, which is why our shows are available on more than 150 video platforms globally including Netflix, Disney+, BBC iPlayer and YouTube Kids. Moonbug is also a global leader in pre-school music and audio experiences, available on 100+ audio platforms globally. Moonbug brands extend far beyond the screen to include streaming music, toys, games, books, live events, and even theme park exhibits.
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        About The Role FDM is a global business and technology consultancy seeking a C# Developer to work for our client within the advisory and consultancy sector. This is initially an 8-month contract with the potential to extend and will be a remote role with occasional trips to London. Our client is looking for a C# Developer who would be working on a range of projects, both idea and concept experimentation as well as product MVP development. You will be providing expertise in Software Development best practice, in line with the organisations standards and processes, as well as being an active developer-participant. The ideal candidate will be expected to have significant experience of .NET and will work under the technical steer of a Senior Developer.
        About The Role FDM is a global business and technology consultancy seeking a C# Developer to work for our client within the advisory and consultancy sector. This is initially an 8-month contract with the potential to extend and will be a remote role with occasional trips to London. Our client is looking for a C# Developer who would be working on a range of projects, both idea and concept experimentation as well as product MVP development. You will be providing expertise in Software Development best practice, in line with the organisations standards and processes, as well as being an active developer-participant. The ideal candidate will be expected to have significant experience of .NET and will work under the technical steer of a Senior Developer.
        more
        Why Altium? Altium is transforming the way electronics are designed and built. From startups to worlds technology giants, our digital platforms give more power to PCB designers, supply chain, and manufacturing, letting them collaborate as never before. * Constant innovation has created a transformative technology, unique in its space * More than 30,000 companies and 100,000 electronics engineers worldwide use Altium * We are growing, debt-free, and financially strong, with the resources to become #1 in the EDA industry Why A365 Software Engineering? Build the cloud platform thats transforming electronics design. Altium 365 for cloud lets design engineers communicate, collaborate and bring their ideas to market more efficiently than any platform in the industry. * Building new cloud-native applications and scalable infrastructure
        Why Altium? Altium is transforming the way electronics are designed and built. From startups to worlds technology giants, our digital platforms give more power to PCB designers, supply chain, and manufacturing, letting them collaborate as never before. * Constant innovation has created a transformative technology, unique in its space * More than 30,000 companies and 100,000 electronics engineers worldwide use Altium * We are growing, debt-free, and financially strong, with the resources to become #1 in the EDA industry Why A365 Software Engineering? Build the cloud platform thats transforming electronics design. Altium 365 for cloud lets design engineers communicate, collaborate and bring their ideas to market more efficiently than any platform in the industry. * Building new cloud-native applications and scalable infrastructure
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        As Marqeta's Principal Production Support Engineer in the EU, you will serve as the technical leader of our production support function. You will architect and continuously improve support operations, championing best practices and operational excellence across the organisation. With deep technical expertise and a passion for clarity, you will mentor teams, influence product direction, and ensure our support operations are robust, scalable, and aligned with Marqeta's mission for world-class customer experience. We work Flexible First. This role can be performed remotely within the UK. We'd love for you to join us! The Impact You'll Have * Configure environments and controls * Troubleshoot collaboratively as customers integrate with our platform, guiding them through technical documentation and assessing root causes for errors
        As Marqeta's Principal Production Support Engineer in the EU, you will serve as the technical leader of our production support function. You will architect and continuously improve support operations, championing best practices and operational excellence across the organisation. With deep technical expertise and a passion for clarity, you will mentor teams, influence product direction, and ensure our support operations are robust, scalable, and aligned with Marqeta's mission for world-class customer experience. We work Flexible First. This role can be performed remotely within the UK. We'd love for you to join us! The Impact You'll Have * Configure environments and controls * Troubleshoot collaboratively as customers integrate with our platform, guiding them through technical documentation and assessing root causes for errors
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        About The Role FDM is a global business and technology consultancy seeking a Microsoft Power Platform developer to work for our client within the health services sector. This is initially a 6-month contract with the potential to extend and will be a hybrid role based in London. Our client is looking for a Microsoft Power Platform Developer to join their Group Functions. You will build solutions leveraging Microsoft viva connections & SharePoint to improve employee experience. Youll be using SPFx, Viva Connections, M365 Suits, Co-pilot, Microsoft PowerApps, Power Pages and SharePoint sites, providing first line support and working in alignment to the architectural principles. You will also be part of the colleague digital experience Product team, enabling a spirit of continuous improvement within and across the team and product. Responsibilities
        About The Role FDM is a global business and technology consultancy seeking a Microsoft Power Platform developer to work for our client within the health services sector. This is initially a 6-month contract with the potential to extend and will be a hybrid role based in London. Our client is looking for a Microsoft Power Platform Developer to join their Group Functions. You will build solutions leveraging Microsoft viva connections & SharePoint to improve employee experience. Youll be using SPFx, Viva Connections, M365 Suits, Co-pilot, Microsoft PowerApps, Power Pages and SharePoint sites, providing first line support and working in alignment to the architectural principles. You will also be part of the colleague digital experience Product team, enabling a spirit of continuous improvement within and across the team and product. Responsibilities
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        Join Vonage and help us innovate cloud communications for businesses worldwide! As an emerging leader in the $10B+ communications API market, we empower global brands to connect better with their customers, employees, and partners through transformative communications experiences. For example, Vonage API solutions empower organizations to build their custom omnichannel communications structure. This allows them to reach and engage customers on their preferred schedule and channel including voice, video, and messaging. Think of a rideshare service instantly connecting with customers, hospital staff conducting remote monitoring, customers verifying their identity before completing a purchase, AI virtual agents servicing customers around the clock, and much more.
        Join Vonage and help us innovate cloud communications for businesses worldwide! As an emerging leader in the $10B+ communications API market, we empower global brands to connect better with their customers, employees, and partners through transformative communications experiences. For example, Vonage API solutions empower organizations to build their custom omnichannel communications structure. This allows them to reach and engage customers on their preferred schedule and channel including voice, video, and messaging. Think of a rideshare service instantly connecting with customers, hospital staff conducting remote monitoring, customers verifying their identity before completing a purchase, AI virtual agents servicing customers around the clock, and much more.
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        Description At Xe, we live currencies. We provide a comprehensive range of currency services and products, including our Currency Converter, Market Analysis, Currency Data API and quick, easy, secure Money Transfers for individuals and businesses. Last year, we helped over 300 million people access information about the currencies that matter to them and over 225,000 people used us to send money overseas. As a Business Development Manager Corporate Sales, youll be at the forefront of Xes growth journey. Your role is to identify and engage prospective businesses, uncover their FX needs, and successfully onboard high-quality clients for our Dealing Team to manage. This is more than a sales role. Its a chance to build a commercial career, grow with a scaling global brand, and develop into a best-in-class sales professional.
        Description At Xe, we live currencies. We provide a comprehensive range of currency services and products, including our Currency Converter, Market Analysis, Currency Data API and quick, easy, secure Money Transfers for individuals and businesses. Last year, we helped over 300 million people access information about the currencies that matter to them and over 225,000 people used us to send money overseas. As a Business Development Manager Corporate Sales, youll be at the forefront of Xes growth journey. Your role is to identify and engage prospective businesses, uncover their FX needs, and successfully onboard high-quality clients for our Dealing Team to manage. This is more than a sales role. Its a chance to build a commercial career, grow with a scaling global brand, and develop into a best-in-class sales professional.
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        Frequently Asked Questions

        How many contract API jobs are there in The City, City of London?
        There are 143 contract API jobs within 20 miles of The City, City of London available on Jobsite right now.

        Where in The City, City of London are these contract jobs?
        You can find contract jobs in The City, City (EC3), Southwark, Duxford.

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