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10 Contract API jobs in Welwyn Garden City + 20 miles
117 exact matches jobs are outside your preferred location
3+ years of full-time work experience in API development.
3+ years of full-time work experience in API development.
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Knowledge of Python, C#, or TypeScript for API integration and automation.
Knowledge of Python, C#, or TypeScript for API integration and automation.
Expertise in open loop and closed loop secure payment systems (Mastercard, Outseer 3DS, etc) as well as the relative regulations in identity e.g FAPI Standards (Financial-grade API). * Proven track record of delivering API-driven, cloud-based identity and payment services at scale.
Expertise in open loop and closed loop secure payment systems (Mastercard, Outseer 3DS, etc) as well as the relative regulations in identity e.g FAPI Standards (Financial-grade API). * Proven track record of delivering API-driven, cloud-based identity and payment services at scale.
Senior Site Reliability Engineer, Managed Kubernetes - Europe
Senior Site Reliability Engineer, Managed Kubernetes - Europe
Lambda Group Limited
London
£161,000 - £310,000 a year
Proven experience provisioning Kubernetes using tools such as kubeadm, Cluster API, or similar
Proven experience provisioning Kubernetes using tools such as kubeadm, Cluster API, or similar
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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. o Hands-on experience with APIs , including designing, integrating, and managing third-party or internal API solutions to support compliance and onboarding workflows
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. o Hands-on experience with APIs , including designing, integrating, and managing third-party or internal API solutions to support compliance and onboarding workflows
Oversee integration of Radar API with ML Engineering.
Oversee integration of Radar API with ML Engineering.
Job Introduction - At SCS Railways, were delivering one of the most transformative rail projects in the UK and our IT team is at the heart of making it happen. We manage cloud-based and on-site services for over 2,000 users, ensuring seamless collaboration, secure data management, and cutting-edge digital solutions across our business. Were now looking for a Solutions Architect (Information Management) a technically skilled, forward-thinking professional who will play a leading role in developing and enhancing our information management systems. If youre passionate about modern cloud technologies, integration architecture, and building scalable, high-performance solutions, this is your opportunity to make a lasting impact. Working arrangements: This role will be based in the office for a minimum of 3 days per week. Main Responsibilities
Job Introduction - At SCS Railways, were delivering one of the most transformative rail projects in the UK and our IT team is at the heart of making it happen. We manage cloud-based and on-site services for over 2,000 users, ensuring seamless collaboration, secure data management, and cutting-edge digital solutions across our business. Were now looking for a Solutions Architect (Information Management) a technically skilled, forward-thinking professional who will play a leading role in developing and enhancing our information management systems. If youre passionate about modern cloud technologies, integration architecture, and building scalable, high-performance solutions, this is your opportunity to make a lasting impact. Working arrangements: This role will be based in the office for a minimum of 3 days per week. Main Responsibilities
API & Integration Development Build secure, scalable APIs to connect EnvisionOS with platforms like ServiceNow, Snowflake, and monitoring systems. * Proven experience with API development (REST, GraphQL) and frameworks like Flask, FastAPI, or Spring.
API & Integration Development Build secure, scalable APIs to connect EnvisionOS with platforms like ServiceNow, Snowflake, and monitoring systems. * Proven experience with API development (REST, GraphQL) and frameworks like Flask, FastAPI, or Spring.
You will lead the technical vision for our core developer productsincluding our API, Eventing, Lambdas, and Marketplace. * Guide the evolution of our external API framework, ensuring it remains robust, consistent, and easy to use as our product capabilities expand.
You will lead the technical vision for our core developer productsincluding our API, Eventing, Lambdas, and Marketplace. * Guide the evolution of our external API framework, ensuring it remains robust, consistent, and easy to use as our product capabilities expand.
Date: 30 Sept 2025 - Location: London, GB, EC2V 7AD - Company: Paysafe - Paysafe is a leading payments platform with an extensive track record of serving merchants and consumers in the global entertainment sectors. Its core purpose is to enable businesses and consumers to connect and transact seamlessly through industry-leading capabilities in payment processing, digital wallet, and online cash solutions. With 29 years of online payment experience, an annualized transactional volume of $152 billion in 2024, and approximately 3,300 employees located in 12+ countries, Paysafe connects businesses and consumers across 260 payment types in 48 currencies around the world. Delivered through an integrated platform, Paysafe solutions are geared toward mobile-initiated transactions, real-time analytics and the convergence between brick-and-mortar and online payments.
Date: 30 Sept 2025 - Location: London, GB, EC2V 7AD - Company: Paysafe - Paysafe is a leading payments platform with an extensive track record of serving merchants and consumers in the global entertainment sectors. Its core purpose is to enable businesses and consumers to connect and transact seamlessly through industry-leading capabilities in payment processing, digital wallet, and online cash solutions. With 29 years of online payment experience, an annualized transactional volume of $152 billion in 2024, and approximately 3,300 employees located in 12+ countries, Paysafe connects businesses and consumers across 260 payment types in 48 currencies around the world. Delivered through an integrated platform, Paysafe solutions are geared toward mobile-initiated transactions, real-time analytics and the convergence between brick-and-mortar and online payments.
Experience with supplier audits, quality systems (e.g., ISO 9001, API Specification Q1), and managing supplier relationships is highly valued.
Experience with supplier audits, quality systems (e.g., ISO 9001, API Specification Q1), and managing supplier relationships is highly valued.
AWS API Gateway
AWS API Gateway
To be right for this role, you should have extensive mobile and API automation experience and the ability to self-serve by building the tooling required to support your automation efforts. * Lead an automation team to build pipelines and tooling for mobile app automation, e2e testing suites, and API testing
To be right for this role, you should have extensive mobile and API automation experience and the ability to self-serve by building the tooling required to support your automation efforts. * Lead an automation team to build pipelines and tooling for mobile app automation, e2e testing suites, and API testing
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REST APIs and API integration
REST APIs and API integration
Capable of diagnosing and resolving tracking, data, and audience issues, including pixel implementation, UTM structure, and conversion API setup.
Capable of diagnosing and resolving tracking, data, and audience issues, including pixel implementation, UTM structure, and conversion API setup.
Location: Central London or Remote [Moldova] Job Type: Full time - Why join us? If you love food and technology as much as we do, youll love life at Vita Mojo. Were on a mission to revolutionise the hospitality experience for operators and their customers. Through our smart digital products, were powering the digital transformation of your favourite pubs, bars and restaurants. And we want a world where everyone gets the meal theyre hoping for. Each and every time. Our Vita Mojo DNA - Were proud to have built an award-winning digital platform. Vita Mojo is a positive, energetic and forward-thinking place to work, and when you become a Moji, youll be joining a supportive team whove always got your back. Our passion for technology and food is matched only by our support for our people. About the role - Your mission as a Vita Mojo Full Stack Engineer is to help us bring o
Location: Central London or Remote [Moldova] Job Type: Full time - Why join us? If you love food and technology as much as we do, youll love life at Vita Mojo. Were on a mission to revolutionise the hospitality experience for operators and their customers. Through our smart digital products, were powering the digital transformation of your favourite pubs, bars and restaurants. And we want a world where everyone gets the meal theyre hoping for. Each and every time. Our Vita Mojo DNA - Were proud to have built an award-winning digital platform. Vita Mojo is a positive, energetic and forward-thinking place to work, and when you become a Moji, youll be joining a supportive team whove always got your back. Our passion for technology and food is matched only by our support for our people. About the role - Your mission as a Vita Mojo Full Stack Engineer is to help us bring o
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As an AI Backend Services Engineer at Labster, you will be instrumental in building robust backend services that leverage AI capabilities (particularly LLM APIs) to enhance personalized adaptive tutoring in immersive learning experiences. You'll play a pivotal role in designing, implementing, and scaling services that integrate with AI providers and automation tools to deliver educational content effectively, contributing significantly to Labster's mission to empower 100 million students globally with personal AI tutors that dramatically advance equal access to high-quality science and healthcare education. If youre passionate about working for a mission-driven organization and making a tangible difference in the world through education and healthcare innovation, please read on and apply! Responsibilities
As an AI Backend Services Engineer at Labster, you will be instrumental in building robust backend services that leverage AI capabilities (particularly LLM APIs) to enhance personalized adaptive tutoring in immersive learning experiences. You'll play a pivotal role in designing, implementing, and scaling services that integrate with AI providers and automation tools to deliver educational content effectively, contributing significantly to Labster's mission to empower 100 million students globally with personal AI tutors that dramatically advance equal access to high-quality science and healthcare education. If youre passionate about working for a mission-driven organization and making a tangible difference in the world through education and healthcare innovation, please read on and apply! Responsibilities
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Were a business with a global reach that empowers local teams, and we undertake hugely exciting work that is genuinely changing the world. Our advanced portfolio of consulting, applications, business process, cloud, and infrastructure services will allow you to achieve great things by working with brilliant colleagues, and clients, on exciting projects. Our inclusive work environment prioritises mutual respect, accountability, and continuous learning for all our people. This approach fosters collaboration, well-being, growth, and agility, leading to a more diverse, innovative, and competitive organisation. We are also proud to share that we have a range of Inclusion Networks such as: the Womens Business Network, Cultural and Ethnicity Network, LGBTQ+ & Allies Network, Neurodiversity Network and the Parent Network.
Were a business with a global reach that empowers local teams, and we undertake hugely exciting work that is genuinely changing the world. Our advanced portfolio of consulting, applications, business process, cloud, and infrastructure services will allow you to achieve great things by working with brilliant colleagues, and clients, on exciting projects. Our inclusive work environment prioritises mutual respect, accountability, and continuous learning for all our people. This approach fosters collaboration, well-being, growth, and agility, leading to a more diverse, innovative, and competitive organisation. We are also proud to share that we have a range of Inclusion Networks such as: the Womens Business Network, Cultural and Ethnicity Network, LGBTQ+ & Allies Network, Neurodiversity Network and the Parent Network.
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Were Civica, and we create software that helps deliver critical services for citizens all around the world. From local government, to education, health, and care, over 5,000 public bodies across the globe use our software to provide essential services to over 100 million citizens. Our aspiration is to be a GovTech champion everywhere we work, supporting the needs of citizens and those who serve them every day. Building on 21 years of continuous growth and success, we're at a pivotal point in our journey to realise that aspiration. Why you will love this opportunity as Technical Consultant at Civica - Its an essential role in the Civica LG Division Services Team, working across a range of products and customers in the portfolio to deliver professional services consultancy on several concurrent projects.
Were Civica, and we create software that helps deliver critical services for citizens all around the world. From local government, to education, health, and care, over 5,000 public bodies across the globe use our software to provide essential services to over 100 million citizens. Our aspiration is to be a GovTech champion everywhere we work, supporting the needs of citizens and those who serve them every day. Building on 21 years of continuous growth and success, we're at a pivotal point in our journey to realise that aspiration. Why you will love this opportunity as Technical Consultant at Civica - Its an essential role in the Civica LG Division Services Team, working across a range of products and customers in the portfolio to deliver professional services consultancy on several concurrent projects.
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Cambridge, MA - Engineering / Co-op / On-site - Tamr offers an AI-native Master Data Management (MDM) platform designed to help enterprises create unified, accurate records across vast, complex data ecosystems. Tamr accelerates the discovery, enrichment, and maintenance of golden records - clean, trusted, and continuously updated profiles - that enable informed decision-making and improved operational efficiency. With a co-founding team led by Andy Palmer (founding CEO of Vertica) and Mike Stonebraker (Turing Award winner) and backed by top-tier investors such as NEA and Google Ventures, Tamr transforms how companies get value from their data. We are looking for an intern to join our core engineering team in Harvard Square (Cambridge), one of the most important technical hubs in the world! Our team is a close-knit group of about 40 professionals who are always willing
Cambridge, MA - Engineering / Co-op / On-site - Tamr offers an AI-native Master Data Management (MDM) platform designed to help enterprises create unified, accurate records across vast, complex data ecosystems. Tamr accelerates the discovery, enrichment, and maintenance of golden records - clean, trusted, and continuously updated profiles - that enable informed decision-making and improved operational efficiency. With a co-founding team led by Andy Palmer (founding CEO of Vertica) and Mike Stonebraker (Turing Award winner) and backed by top-tier investors such as NEA and Google Ventures, Tamr transforms how companies get value from their data. We are looking for an intern to join our core engineering team in Harvard Square (Cambridge), one of the most important technical hubs in the world! Our team is a close-knit group of about 40 professionals who are always willing
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Company Overview - IMS is a leader in connected car and telematics services. We provide services and analytics to insurers, governments, and enterprises. We are proud to be the developer of the industry-acclaimed, cloud-based connected car platform. From insurers and governments to dealerships and everyday drivers, were proud to produce technology that makes driving - Safer. Smarter. Greener. Description - The Senior Data Scientist is responsible for developing and implementing advanced data science models, machine learning algorithms, and predictive analytics solutions to drive business insights, product innovation, and operational efficiencies at IMS. This role plays a critical part in enhancing telematics, mobility, and insurance technology solutions through data-driven decision-making, statistical analysis, and AI-driven automation.
Company Overview - IMS is a leader in connected car and telematics services. We provide services and analytics to insurers, governments, and enterprises. We are proud to be the developer of the industry-acclaimed, cloud-based connected car platform. From insurers and governments to dealerships and everyday drivers, were proud to produce technology that makes driving - Safer. Smarter. Greener. Description - The Senior Data Scientist is responsible for developing and implementing advanced data science models, machine learning algorithms, and predictive analytics solutions to drive business insights, product innovation, and operational efficiencies at IMS. This role plays a critical part in enhancing telematics, mobility, and insurance technology solutions through data-driven decision-making, statistical analysis, and AI-driven automation.
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Location - London - Employment Type - Full time - Department - Product R&D - About G2 - The Company - When you join G2, youre joining the team that helps businesses reach their peak potential by powering decisions and strategies with trusted insights from real software users. G2 is the world's largest and most trusted software marketplace. More than 100 million people annually including employees at all Fortune 500 companies use G2 to make smarter software decisions based on authentic peer reviews. Thousands of software and services companies of all sizes partner with G2 to build their reputation and grow their business including Salesforce, HubSpot, Zoom, and Adobe. To learn more about where you go for software, visit and follow us on LinkedIn. As we continue on our growth journey, we are striving to be the most trusted data source in the age of AI for informing soft
Location - London - Employment Type - Full time - Department - Product R&D - About G2 - The Company - When you join G2, youre joining the team that helps businesses reach their peak potential by powering decisions and strategies with trusted insights from real software users. G2 is the world's largest and most trusted software marketplace. More than 100 million people annually including employees at all Fortune 500 companies use G2 to make smarter software decisions based on authentic peer reviews. Thousands of software and services companies of all sizes partner with G2 to build their reputation and grow their business including Salesforce, HubSpot, Zoom, and Adobe. To learn more about where you go for software, visit and follow us on LinkedIn. As we continue on our growth journey, we are striving to be the most trusted data source in the age of AI for informing soft
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Bango enables content providers to reach more paying customers through global partnerships. Today, the Digital Vending Machine is driving the rapid growth of the subscriptions economy, powering choice and control for subscribers. The worlds largest content providers, including Amazon, Google and Microsoft trust Bango technology to reach subscribers everywhere. Bango, where people subscribe. Role - As a Business Analyst in the Delivery team, reporting to a Project Delivery Manager, you are responsible for ensuring the successful integration of customer systems into the Bango Platform. You will work directly with customers to build strong relationships, understand their systems, and design integration solutions that unlock value for both them and Bango. Youll collaborate closely with Pre-Sales, Project Managers, Integration Engineers, QA Engineers, and the Managed Servi
Bango enables content providers to reach more paying customers through global partnerships. Today, the Digital Vending Machine is driving the rapid growth of the subscriptions economy, powering choice and control for subscribers. The worlds largest content providers, including Amazon, Google and Microsoft trust Bango technology to reach subscribers everywhere. Bango, where people subscribe. Role - As a Business Analyst in the Delivery team, reporting to a Project Delivery Manager, you are responsible for ensuring the successful integration of customer systems into the Bango Platform. You will work directly with customers to build strong relationships, understand their systems, and design integration solutions that unlock value for both them and Bango. Youll collaborate closely with Pre-Sales, Project Managers, Integration Engineers, QA Engineers, and the Managed Servi
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About Us - Have you ever wanted to build something that doesnt just improve the status quo, but makes it 100x better? Not just a small step forward, but a complete reinvention. Thats what were doing, and we need the best people to help us make it happen. Were an early-stage start-up out of London working at the intersection of system design, cloud infrastructure, and AI to accelerate the adoption of modern tools and technologies. Our goal is nothing less than to enable businesses of all sizes and shapes to leverage best-of-class technologies and the latest advancements in GenAI including agentic frameworks. Weve recently launched the beta version of our product, having raised a hefty pre-seed fund from Tier 1 investors with additional contributions from some brilliant angels to bring the vision to life.
About Us - Have you ever wanted to build something that doesnt just improve the status quo, but makes it 100x better? Not just a small step forward, but a complete reinvention. Thats what were doing, and we need the best people to help us make it happen. Were an early-stage start-up out of London working at the intersection of system design, cloud infrastructure, and AI to accelerate the adoption of modern tools and technologies. Our goal is nothing less than to enable businesses of all sizes and shapes to leverage best-of-class technologies and the latest advancements in GenAI including agentic frameworks. Weve recently launched the beta version of our product, having raised a hefty pre-seed fund from Tier 1 investors with additional contributions from some brilliant angels to bring the vision to life.
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We're looking for an AI Ecosystem Manager to join our GTM Team! Were looking for a passionate AI partnership manager to join our team and lead partnerships with key players across the AI landscape. If you live and breathe technology, thrive in fast paced environments, and are excited about shaping how AI integrates into world-class products, wed love to meet you. As an AI Tech Partnerships Manager, youll play a pivotal role in identifying and developing strategic relationships with the most relevant AI technology providers to enhance and expand our product capabilities. Youll own the full lifecycle of partnership development, from mapping and evaluation to product integration and joint go-to-market (GTM) execution. About The Role About The Role * Own the end-to-end partnership process from scouting and outreach to signing strategic partnership agreements with selected
We're looking for an AI Ecosystem Manager to join our GTM Team! Were looking for a passionate AI partnership manager to join our team and lead partnerships with key players across the AI landscape. If you live and breathe technology, thrive in fast paced environments, and are excited about shaping how AI integrates into world-class products, wed love to meet you. As an AI Tech Partnerships Manager, youll play a pivotal role in identifying and developing strategic relationships with the most relevant AI technology providers to enhance and expand our product capabilities. Youll own the full lifecycle of partnership development, from mapping and evaluation to product integration and joint go-to-market (GTM) execution. About The Role About The Role * Own the end-to-end partnership process from scouting and outreach to signing strategic partnership agreements with selected
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