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        29 Contract API jobs in Mayfair + 20 miles

        127 exact matches jobs are outside your preferred location

        Senior .NET Developer - Workflow Automation

        Mitratech UK
        London
        Competitive
        At Mitratech, we are a team of technologists focused on building world-class products that simplify operations in the Legal, Risk, Compliance, and HR functions. We are a close-knit, globally dispersed team that thrives in an ecosystem that supports individual excellence and takes pride in its diverse and inclusive work culture centred around great people practices, learning opportunities, and having fun! Our culture is the ideal blend of entrepreneurial spirit and enterprise investment, enabling the chance to move at a rapid pace with some of the most complex, leading-edge technologies available. For over 35 years, the experts at Mitratech have been focused on solving the complex needs. Today, we serve 20,000 client companies of all sizes globally, representing 30% of the Fortune 500 and over 500,000 users in over 160 countries.
        At Mitratech, we are a team of technologists focused on building world-class products that simplify operations in the Legal, Risk, Compliance, and HR functions. We are a close-knit, globally dispersed team that thrives in an ecosystem that supports individual excellence and takes pride in its diverse and inclusive work culture centred around great people practices, learning opportunities, and having fun! Our culture is the ideal blend of entrepreneurial spirit and enterprise investment, enabling the chance to move at a rapid pace with some of the most complex, leading-edge technologies available. For over 35 years, the experts at Mitratech have been focused on solving the complex needs. Today, we serve 20,000 client companies of all sizes globally, representing 30% of the Fortune 500 and over 500,000 users in over 160 countries.
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        Serve as the primary technical contact for advanced issues related to software, product data feeds, API integrations, and FTP * Advanced expertise in REST and SOAP API integrations and troubleshooting
        Serve as the primary technical contact for advanced issues related to software, product data feeds, API integrations, and FTP * Advanced expertise in REST and SOAP API integrations and troubleshooting
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        From refining API design to optimising performance and observability, youll be the driving force behind the systems that keep Onetrace running smoothly and growing fast. * RESTful API design and implementation
        From refining API design to optimising performance and observability, youll be the driving force behind the systems that keep Onetrace running smoothly and growing fast. * RESTful API design and implementation
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        Balance roadmap and service levels: Prioritise platform improvements, API consistency, reliability SLAs, and technical documentation to ensure smooth usage by other teams. * 4+ years in product management with a strong technical focus-ideally in infrastructure, platform, or API products.
        Balance roadmap and service levels: Prioritise platform improvements, API consistency, reliability SLAs, and technical documentation to ensure smooth usage by other teams. * 4+ years in product management with a strong technical focus-ideally in infrastructure, platform, or API products.
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        At Braze, we have found our people. We're a genuinely approachable, exceptionally kind, and intensely passionate crew. We seek to ignite that passion by setting high standards, championing teamwork, and creating work-life harmony as we collectively navigate rapid growth on a global scale while striving for greater equity and opportunity inside and outside our organization. To flourish here, you must be prepared to set a high bar for yourself and those around you. There is always a way to contribute: Acting with autonomy, having accountability and being open to new perspectives are essential to our continued success. Our deep curiosity to learn and our eagerness to share diverse passions with others gives us balance and injects a one-of-a-kind vibrancy into our culture. If you are driven to solve exhilarating challenges and have a bias toward action in the face of chan
        At Braze, we have found our people. We're a genuinely approachable, exceptionally kind, and intensely passionate crew. We seek to ignite that passion by setting high standards, championing teamwork, and creating work-life harmony as we collectively navigate rapid growth on a global scale while striving for greater equity and opportunity inside and outside our organization. To flourish here, you must be prepared to set a high bar for yourself and those around you. There is always a way to contribute: Acting with autonomy, having accountability and being open to new perspectives are essential to our continued success. Our deep curiosity to learn and our eagerness to share diverse passions with others gives us balance and injects a one-of-a-kind vibrancy into our culture. If you are driven to solve exhilarating challenges and have a bias toward action in the face of chan
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        Company Description - About us - Every company in the world, needs to understand who they are doing business with. We are re-imagining how humans find, read and distil knowledge from the internet at unprecedented scale and accuracy, to answer critical questions about suppliers, donors, investors and third parties. We are addressing a sector-independent problem for a global market. We are pioneers, working at the forefront of AI and applied research, to build a fully distributed, heterogeneous and scalable system, using the latest technologies. We help the world do better business, faster. Our clients include the worlds leading companies, charities, universities, law firms and financial institutions. Using Xapien, in minutes, they can do work that previously took hours and days. We have over 100 customers, in 3 continents, last year we doubled in size and this year we
        Company Description - About us - Every company in the world, needs to understand who they are doing business with. We are re-imagining how humans find, read and distil knowledge from the internet at unprecedented scale and accuracy, to answer critical questions about suppliers, donors, investors and third parties. We are addressing a sector-independent problem for a global market. We are pioneers, working at the forefront of AI and applied research, to build a fully distributed, heterogeneous and scalable system, using the latest technologies. We help the world do better business, faster. Our clients include the worlds leading companies, charities, universities, law firms and financial institutions. Using Xapien, in minutes, they can do work that previously took hours and days. We have over 100 customers, in 3 continents, last year we doubled in size and this year we
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        We are seeking an Agentic AI Engineer to join our growing AI & Data Science team. This role focuses on building, deploying, and scaling agentic AI systems autonomous, goal-driven AI agents that augment decision-making, automate complex workflows, and deliver actionable insights across Exiger's risk and compliance platforms. You will work closely with data scientists, software engineers, and product leaders to push the boundaries of applied AI in high-stakes environments. Key Responsibilities * Design, develop, and deploy agentic AI systems capable of reasoning, planning, and autonomously executing multi-step tasks. * Integrate large language models (LLMs) , vector databases, and external APIs into dynamic agent frameworks. * Collaborate with product teams to translate compliance, risk, and supply chain use cases into scalable AI-driven workflows.
        We are seeking an Agentic AI Engineer to join our growing AI & Data Science team. This role focuses on building, deploying, and scaling agentic AI systems autonomous, goal-driven AI agents that augment decision-making, automate complex workflows, and deliver actionable insights across Exiger's risk and compliance platforms. You will work closely with data scientists, software engineers, and product leaders to push the boundaries of applied AI in high-stakes environments. Key Responsibilities * Design, develop, and deploy agentic AI systems capable of reasoning, planning, and autonomously executing multi-step tasks. * Integrate large language models (LLMs) , vector databases, and external APIs into dynamic agent frameworks. * Collaborate with product teams to translate compliance, risk, and supply chain use cases into scalable AI-driven workflows.
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        Location: London, UK (Hybrid Working) Department: Investment Operations, Fund Services - Reports to: Manager, Data Production UK - Employment Type: Full-Time - We are a global investment leader committed to delivering better outcomes for millions of members. If youre passionate about data, thrive in a collaborative environment, and want to play a key role in shaping the future of investment data services in our growing London office, this is your opportunity. At AustralianSuper , were more than a super fundwere a purpose-driven organisation focused on helping members achieve their best financial position in retirement. As we continue to expand our global footprint, were looking for a dedicated Data Analyst to join our Investment Data Services team. This is a unique opportunity to support data transformation initiatives that directly impact investment decision-making a
        Location: London, UK (Hybrid Working) Department: Investment Operations, Fund Services - Reports to: Manager, Data Production UK - Employment Type: Full-Time - We are a global investment leader committed to delivering better outcomes for millions of members. If youre passionate about data, thrive in a collaborative environment, and want to play a key role in shaping the future of investment data services in our growing London office, this is your opportunity. At AustralianSuper , were more than a super fundwere a purpose-driven organisation focused on helping members achieve their best financial position in retirement. As we continue to expand our global footprint, were looking for a dedicated Data Analyst to join our Investment Data Services team. This is a unique opportunity to support data transformation initiatives that directly impact investment decision-making a
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        Global-e (Nasdaq: GLBE) is the worlds leading platform to enable and accelerate global, direct-to-consumer cross-border e-commerce growth. We make selling internationally as simple as selling domestically for hundreds of retailers and brands worldwide. We are looking for a skilled Implementation Engineer. The Implementation Engineer will be part of the Professional Services team working on integrations with our clients. As a Implementation Engineer. you will fill in the essential role of providing technical assistance to the Project manager in successfully launching new clients and day to day management of our ever-growing client base. In addition, you will be working closely with the Customer success and other teams in Global-e and supporting live clients activities. * Be an expert of the system settings for all the Account managers, Projects, Integrations, and OPS t
        Global-e (Nasdaq: GLBE) is the worlds leading platform to enable and accelerate global, direct-to-consumer cross-border e-commerce growth. We make selling internationally as simple as selling domestically for hundreds of retailers and brands worldwide. We are looking for a skilled Implementation Engineer. The Implementation Engineer will be part of the Professional Services team working on integrations with our clients. As a Implementation Engineer. you will fill in the essential role of providing technical assistance to the Project manager in successfully launching new clients and day to day management of our ever-growing client base. In addition, you will be working closely with the Customer success and other teams in Global-e and supporting live clients activities. * Be an expert of the system settings for all the Account managers, Projects, Integrations, and OPS t
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        Sprinklr is a leading enterprise software company for all customer-facing functions. With advanced AI, Sprinklr's unified customer experience management (Unified-CXM) platform helps companies deliver human experiences to every customer, every time, across any modern channel. Headquartered in New York City with employees around the world, Sprinklr works with more than 1,000 of the worlds most valuable enterprises global brands like Microsoft, P&G, Samsung and more than 50% of the Fortune 100. Learn more about our culture and how we make our employees happier through The Sprinklr Way. Job Description Role Summary: As a Forward Deployed Product Manager, you will collaborate closely with enterprise clients and our engineering teams to design and deliver innovative, LLM-powered agentic solutions. This role combines strategic product development with deep customer engagemen
        Sprinklr is a leading enterprise software company for all customer-facing functions. With advanced AI, Sprinklr's unified customer experience management (Unified-CXM) platform helps companies deliver human experiences to every customer, every time, across any modern channel. Headquartered in New York City with employees around the world, Sprinklr works with more than 1,000 of the worlds most valuable enterprises global brands like Microsoft, P&G, Samsung and more than 50% of the Fortune 100. Learn more about our culture and how we make our employees happier through The Sprinklr Way. Job Description Role Summary: As a Forward Deployed Product Manager, you will collaborate closely with enterprise clients and our engineering teams to design and deliver innovative, LLM-powered agentic solutions. This role combines strategic product development with deep customer engagemen
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        About AppyWay - AppyWay helps cities reduce carbon emissions by making it easier to manage and find parking. The company started with a simple parking app called AppyParking because street parking data wasnt easy to access or understand. This led them to create the largest database of standardized parking data in the UK. Our Traffic Suite platform empowers local authorities with best-in-class kerbside data, APIs, and tools to manage traffic orders, parking, and street space more efficiently. Now, AppyWays platform is used by cities across Europe and even in New York City. It provides parking maps, real-time availability, and cashless payment options to help drivers and delivery fleets find parking more efficiently. Theyve raised over £20 million from investors like Hyundai and Mastercard to continue growing.
        About AppyWay - AppyWay helps cities reduce carbon emissions by making it easier to manage and find parking. The company started with a simple parking app called AppyParking because street parking data wasnt easy to access or understand. This led them to create the largest database of standardized parking data in the UK. Our Traffic Suite platform empowers local authorities with best-in-class kerbside data, APIs, and tools to manage traffic orders, parking, and street space more efficiently. Now, AppyWays platform is used by cities across Europe and even in New York City. It provides parking maps, real-time availability, and cashless payment options to help drivers and delivery fleets find parking more efficiently. Theyve raised over £20 million from investors like Hyundai and Mastercard to continue growing.
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        About iProov - iProov provides science-based biometric solutions that enable the worlds most security-conscious organizations to streamline secure remote onboarding and authentication for digital and physical access. Our award-winning liveness technology and iSOC offer unmatched resilience against deepfakes and generative AI threats while ensuring effortless, scalable user experiences. Trusted by leading governments and enterprises, including the U.S. Department of Homeland Security, U.K. Home Office, GovTech Singapore, ING, and UBS, iProov sets the standard in biometric identity assurance. This global trust is built not only on our technology but on the strength of the people behind it. For us, diversity at iProov is about reflecting the customers we serve, holding the principles of equality and inclusion at the heart of everything we do and all that we stand for, ..
        About iProov - iProov provides science-based biometric solutions that enable the worlds most security-conscious organizations to streamline secure remote onboarding and authentication for digital and physical access. Our award-winning liveness technology and iSOC offer unmatched resilience against deepfakes and generative AI threats while ensuring effortless, scalable user experiences. Trusted by leading governments and enterprises, including the U.S. Department of Homeland Security, U.K. Home Office, GovTech Singapore, ING, and UBS, iProov sets the standard in biometric identity assurance. This global trust is built not only on our technology but on the strength of the people behind it. For us, diversity at iProov is about reflecting the customers we serve, holding the principles of equality and inclusion at the heart of everything we do and all that we stand for, ..
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        Contract / FTC / Perm | Remote (UK) with occasional client site visits | Competitive - About BaseOne - At BaseOne, we design and deliver human-centric data solutions for some of the worlds most complex projects from major infrastructure to energy and banking. Our team blends deep domain expertise in project controls with modern tools like Power BI, Microsoft Fabric, and AI-driven analytics , helping clients make better decisions with confidence. Were now looking for a Power BI & Fabric Developer with hands-on experience in Primavera P6 project controls data to join our delivery team. This is a chance to work on high-impact projects across the UK and internationally, building reporting solutions that simplify complexity for decision makers. The Role - Youll be part of a multidisciplinary team working directly with project controls, PMO, and client stakeholders.
        Contract / FTC / Perm | Remote (UK) with occasional client site visits | Competitive - About BaseOne - At BaseOne, we design and deliver human-centric data solutions for some of the worlds most complex projects from major infrastructure to energy and banking. Our team blends deep domain expertise in project controls with modern tools like Power BI, Microsoft Fabric, and AI-driven analytics , helping clients make better decisions with confidence. Were now looking for a Power BI & Fabric Developer with hands-on experience in Primavera P6 project controls data to join our delivery team. This is a chance to work on high-impact projects across the UK and internationally, building reporting solutions that simplify complexity for decision makers. The Role - Youll be part of a multidisciplinary team working directly with project controls, PMO, and client stakeholders.
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        Hive Perform is revolutionising how sales teams win deals. We're the AI-native platform bridging the gap between revenue intelligence and sales training for scaling businesses trusted by over 10,000 employees at leading companies. We don't just show you what happened; we show you what to do next. Our science-based analysis framework gives complete deal visibility, tracks strategy execution, and guides reps on exact next steps to close more deals. As a business backed by Blenheim Chalcot, a world-leading venture builder, you'll join a network of organisations at the cutting edge of AI and innovation. If you're passionate about applying AI to solve real revenue challenges and want to make a meaningful impact at a growing startup, we'd love to hear from you. We're seeking a talented AI Engineer to join our mission of transforming how businesses win deals.
        Hive Perform is revolutionising how sales teams win deals. We're the AI-native platform bridging the gap between revenue intelligence and sales training for scaling businesses trusted by over 10,000 employees at leading companies. We don't just show you what happened; we show you what to do next. Our science-based analysis framework gives complete deal visibility, tracks strategy execution, and guides reps on exact next steps to close more deals. As a business backed by Blenheim Chalcot, a world-leading venture builder, you'll join a network of organisations at the cutting edge of AI and innovation. If you're passionate about applying AI to solve real revenue challenges and want to make a meaningful impact at a growing startup, we'd love to hear from you. We're seeking a talented AI Engineer to join our mission of transforming how businesses win deals.
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        The Mission - At FLOX, we believe smarter farms lead to thriving chickens and healthier lives. Our mission is simple: healthier chickens benefit everyone. Thats why we built FLOX360, a system that uses Computer Vision, smart sensors, and real-time insights to transform poultry farming. By helping farmers improve welfare and efficiency, FLOX360 creates a win-win for birds, farmers, the environment, and people everywhere. Today, were watching 60 million chickens a year. We believe we are setting the standard for animal welfare and smart farming - and were just getting started. The People - Were a diverse team of engineers and entrepreneurs, representing over 13 nationalities and all walks of life - even a few vegetarians! We are brought together by a shared passion for meaningful impact. Empathetic Artisan - We approach our work with care, artistry, and genuine empathy
        The Mission - At FLOX, we believe smarter farms lead to thriving chickens and healthier lives. Our mission is simple: healthier chickens benefit everyone. Thats why we built FLOX360, a system that uses Computer Vision, smart sensors, and real-time insights to transform poultry farming. By helping farmers improve welfare and efficiency, FLOX360 creates a win-win for birds, farmers, the environment, and people everywhere. Today, were watching 60 million chickens a year. We believe we are setting the standard for animal welfare and smart farming - and were just getting started. The People - Were a diverse team of engineers and entrepreneurs, representing over 13 nationalities and all walks of life - even a few vegetarians! We are brought together by a shared passion for meaningful impact. Empathetic Artisan - We approach our work with care, artistry, and genuine empathy
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        Choco is on a mission to enable the global food system to become sustainable by optimizing the way food is sold, ordered, distributed, and financed. Our AI-focused software connects distributors with their customers to operate waste-free and efficiently. A problem of this magnitude requires a massive scale and only the best people will be able to solve it. Are you in? Heres what were up to: Choco to life for our customers. At Choco, we believe technology should feel human. As a member of the Solutions Team , youll bring our vision to life: activating the full potential of Chocos products and people. Youll empower our Go-To-Market teams to deliver resilient results through scalable tools, evolving playbooks, and data-driven processes. As our first Demo Engineering Analyst , youll design the systems that allow our sales and customer success teams to show Chocos value in
        Choco is on a mission to enable the global food system to become sustainable by optimizing the way food is sold, ordered, distributed, and financed. Our AI-focused software connects distributors with their customers to operate waste-free and efficiently. A problem of this magnitude requires a massive scale and only the best people will be able to solve it. Are you in? Heres what were up to: Choco to life for our customers. At Choco, we believe technology should feel human. As a member of the Solutions Team , youll bring our vision to life: activating the full potential of Chocos products and people. Youll empower our Go-To-Market teams to deliver resilient results through scalable tools, evolving playbooks, and data-driven processes. As our first Demo Engineering Analyst , youll design the systems that allow our sales and customer success teams to show Chocos value in
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        The OpenPayd platform delivers a suite of banking and payments infrastructure: accounts in over 40 currencies, FX, on/off ramp, international and domestic payments, Open Banking services all via a single API.
        The OpenPayd platform delivers a suite of banking and payments infrastructure: accounts in over 40 currencies, FX, on/off ramp, international and domestic payments, Open Banking services all via a single API.
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        2+ years of in a few of the areas: serverless architecture, event-driven architecture, microservices, API-driven cloud-based products including performance management.
        2+ years of in a few of the areas: serverless architecture, event-driven architecture, microservices, API-driven cloud-based products including performance management.
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        Frequently Asked Questions

        How many contract API jobs are there in Mayfair?
        There are 29 contract API jobs within 20 miles of Mayfair available on CWJobs right now.

        Where in Mayfair are these contract jobs?
        You can find contract jobs in Millwall, Shadwell, Covent Garden.

        What other similar jobs are there to contract API jobs in Mayfair?
        As well as contract API jobs in Mayfair, you can find contract IT, Software Development, Infrastructure, amongst many others.