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        See all jobs in Welwyn Garden City

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        46 API jobs in Welwyn Garden City + 20 miles

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        Product Owner

        S&P Global
        London
        Competitive
        Experience in managing SaaS and API products with good understanding of XML, JSON and REST.
        Experience in managing SaaS and API products with good understanding of XML, JSON and REST.
        This role is pivotal in connecting our core developer products (API, Eventing, Lambdas, Marketplace) to the company's next-generation AI and data platforms. * Establish and champion the technical vision and architectural governance for our external API framework, ensuring consistency, scalability, and a world-class developer experience across all of Samsara's product lines.
        This role is pivotal in connecting our core developer products (API, Eventing, Lambdas, Marketplace) to the company's next-generation AI and data platforms. * Establish and champion the technical vision and architectural governance for our external API framework, ensuring consistency, scalability, and a world-class developer experience across all of Samsara's product lines.
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        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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        lastupdated - 10/21/2025 - jobtitle - Job Description - Role - Sr. Technology Architect - Technology - Data Modelling, ERWIN Modelling, Azure Architect, PySpark - Location - UK(London) Data Architect should have key understanding of building Data Models, Experience in Data Architecting and Engineering space on Spark, Pyspark, ADF, Azure Synapse and Data Lake. Your role - In the role of a Sr Technology Architect, you will primarily be responsible for identifying best-fit architectural solutions for one or more projects; develop design of application, provide regular support/guidance to project teams on complex coding, issue resolution and execution - As a thought and solution leader, you will be the key advisor to architecture and design reviews. You will anchor business pursuit initiatives, client discussions, in-house capability building.
        lastupdated - 10/21/2025 - jobtitle - Job Description - Role - Sr. Technology Architect - Technology - Data Modelling, ERWIN Modelling, Azure Architect, PySpark - Location - UK(London) Data Architect should have key understanding of building Data Models, Experience in Data Architecting and Engineering space on Spark, Pyspark, ADF, Azure Synapse and Data Lake. Your role - In the role of a Sr Technology Architect, you will primarily be responsible for identifying best-fit architectural solutions for one or more projects; develop design of application, provide regular support/guidance to project teams on complex coding, issue resolution and execution - As a thought and solution leader, you will be the key advisor to architecture and design reviews. You will anchor business pursuit initiatives, client discussions, in-house capability building.
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        Role Sr. Technology Architect - Technology Data Modelling, ERWIN Modelling, Azure Architect, PySpark - Location UK(London) Job Description - Data Architect should have key understanding of building Data Models, Experience in Data Architecting and Engineering space on Spark, Pyspark, ADF, Azure Synapse and Data Lake. Your role - In the role of a Sr Technology Architect, you will primarily be responsible for identifying best-fit architectural solutions for one or more projects; develop design of application, provide regular support/guidance to project teams on complex coding, issue resolution and execution - As a thought and solution leader, you will be the key advisor to architecture and design reviews. You will anchor business pursuit initiatives, client discussions, in-house capability building. You will have the opportunity to shape value-adding solutions that enabl
        Role Sr. Technology Architect - Technology Data Modelling, ERWIN Modelling, Azure Architect, PySpark - Location UK(London) Job Description - Data Architect should have key understanding of building Data Models, Experience in Data Architecting and Engineering space on Spark, Pyspark, ADF, Azure Synapse and Data Lake. Your role - In the role of a Sr Technology Architect, you will primarily be responsible for identifying best-fit architectural solutions for one or more projects; develop design of application, provide regular support/guidance to project teams on complex coding, issue resolution and execution - As a thought and solution leader, you will be the key advisor to architecture and design reviews. You will anchor business pursuit initiatives, client discussions, in-house capability building. You will have the opportunity to shape value-adding solutions that enabl
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        Role Senior Consultant - Technology Inrule BRMS & .Net - Business Unit INS-ADM - Compensation Competitive (including bonus) We are seeking a highly skilled senior developer with expertise in InRule Business Rules Management System (BRMS) and .NET technologies . The ideal candidate will have 7+ years of overall IT experience, including 23 years of hands-on experience with InRule , and will be responsible for leading the design, development, and integration of rule-based solutions within enterprise applications. Your role * Lead the design and implementation of business rule solutions using InRule BRMS. * Collaborate with business analysts and stakeholders to gather rule requirements and translate them into technical specifications. * Integrate InRule with enterprise applications and APIs, including .NET, RESTful services, and cloud platforms.
        Role Senior Consultant - Technology Inrule BRMS & .Net - Business Unit INS-ADM - Compensation Competitive (including bonus) We are seeking a highly skilled senior developer with expertise in InRule Business Rules Management System (BRMS) and .NET technologies . The ideal candidate will have 7+ years of overall IT experience, including 23 years of hands-on experience with InRule , and will be responsible for leading the design, development, and integration of rule-based solutions within enterprise applications. Your role * Lead the design and implementation of business rule solutions using InRule BRMS. * Collaborate with business analysts and stakeholders to gather rule requirements and translate them into technical specifications. * Integrate InRule with enterprise applications and APIs, including .NET, RESTful services, and cloud platforms.
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        Provide guidance to customers who are implementing solutions using the Sprinklr API. * Analyze backend code and API requests/responses. * Create API Extensions using 3rd party API endpoints to be consumed within Sprinklr workflows. * Proven track record with API-based integrations (REST, JSON, authentication flows such as OAuth 2.0).
        Provide guidance to customers who are implementing solutions using the Sprinklr API. * Analyze backend code and API requests/responses. * Create API Extensions using 3rd party API endpoints to be consumed within Sprinklr workflows. * Proven track record with API-based integrations (REST, JSON, authentication flows such as OAuth 2.0).
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        Cloud Architect

        PA Consulting Group Holdings Limited
        London
        Competitive
        We believe in the power of ingenuity to build a positive human future. As strategies, technologies, and innovation collide, we create opportunity from complexity. Our diverse teams of experts combine innovative thinking and breakthrough technologies to progress further, faster. Our clients adapt and transform, and together we achieve enduring results. We are over 4,000 strategists, innovators, designers, consultants, digital experts, scientists, engineers, and technologists. And we have deep expertise in consumer and manufacturing, defence and security, energy and utilities, financial services, government and public services, health and life sciences, and transport. Our teams operate globally from offices across the UK, Ireland, US, Nordics, and Netherlands. Job Description * Architect and Design Cloud Solutions: Design and implement end-to-end cloud solutions on Azur
        We believe in the power of ingenuity to build a positive human future. As strategies, technologies, and innovation collide, we create opportunity from complexity. Our diverse teams of experts combine innovative thinking and breakthrough technologies to progress further, faster. Our clients adapt and transform, and together we achieve enduring results. We are over 4,000 strategists, innovators, designers, consultants, digital experts, scientists, engineers, and technologists. And we have deep expertise in consumer and manufacturing, defence and security, energy and utilities, financial services, government and public services, health and life sciences, and transport. Our teams operate globally from offices across the UK, Ireland, US, Nordics, and Netherlands. Job Description * Architect and Design Cloud Solutions: Design and implement end-to-end cloud solutions on Azur
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        At Medtronic you can begin a life-long career of exploration and innovation, while helping champion healthcare access and equity for all. Youll lead with purpose, breaking down barriers to innovation in a more connected, compassionate world. A Day in the Life - The Digital Technologies Business Unit (DTBU) at Medtronic is implementing cutting-edge AI technology, computer vision, and augmented reality in the operating room (OR) to augment surgical coaching, and eventually, performance. Our goal is to deliver safer surgery around the world. Our Touch SurgeryTM Video solution is an innovative video management and data analytics platform for hospitals that includes the DS1 Computer, our first OR device, allowing surgeons, OR team members, and trainees to securely access videos of their procedures shortly after surgery.
        At Medtronic you can begin a life-long career of exploration and innovation, while helping champion healthcare access and equity for all. Youll lead with purpose, breaking down barriers to innovation in a more connected, compassionate world. A Day in the Life - The Digital Technologies Business Unit (DTBU) at Medtronic is implementing cutting-edge AI technology, computer vision, and augmented reality in the operating room (OR) to augment surgical coaching, and eventually, performance. Our goal is to deliver safer surgery around the world. Our Touch SurgeryTM Video solution is an innovative video management and data analytics platform for hospitals that includes the DS1 Computer, our first OR device, allowing surgeons, OR team members, and trainees to securely access videos of their procedures shortly after surgery.
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        Lead React Developer

        Money and Pensions Service
        Bedford, Bedfordshire
        £80,000 a year
        Experience developing and integrating with Azure Services (e.g. Azure Functions, App Services, Entra ID, Cosmos DB, API Management, Redis, App Configuration).
        Experience developing and integrating with Azure Services (e.g. Azure Functions, App Services, Entra ID, Cosmos DB, API Management, Redis, App Configuration).
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        Senior Test Engineer

        Department for Energy Security & Net Zero
        London
        £42,385 - £51,540 a year
        Lead the design and implementation of comprehensive quality strategies across platforms like Salesforce, Azure, and AWS, including test approaches (unit, integration, API, UI, performance, security, accessibility) and automation frameworks using C#, Python, Apex, and TypeScript. Proven test automation skills using tools like Selenium, Playwright, Cypress, pytest, xUnit/NUnit, or Jest for functional, integration, API, and end-to-end testing.
        Lead the design and implementation of comprehensive quality strategies across platforms like Salesforce, Azure, and AWS, including test approaches (unit, integration, API, UI, performance, security, accessibility) and automation frameworks using C#, Python, Apex, and TypeScript. Proven test automation skills using tools like Selenium, Playwright, Cypress, pytest, xUnit/NUnit, or Jest for functional, integration, API, and end-to-end testing.
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        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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        We are a fast-growing, research-driven company building an artificial intelligence that helps online publishers overcome the challenges they face every day. Using novel AI, we are revolutionising the publishing industry and have a track record of building things that others have ruled out as impossible. Leading names from around the world rely on our product every day, including The Times, Le Monde, The Guardian, Vogue and many more. About the Role: You will work closely with our Product team and Data Scientists to define and execute on the future path for our products. * Work closely with senior engineers to design, build, and maintain back-end services and systems that support our AI-powered products, all whilst meeting launch deadlines. * Assist in the development and optimization of scalable, high-performance systems to support large volumes of data and machine ..
        We are a fast-growing, research-driven company building an artificial intelligence that helps online publishers overcome the challenges they face every day. Using novel AI, we are revolutionising the publishing industry and have a track record of building things that others have ruled out as impossible. Leading names from around the world rely on our product every day, including The Times, Le Monde, The Guardian, Vogue and many more. About the Role: You will work closely with our Product team and Data Scientists to define and execute on the future path for our products. * Work closely with senior engineers to design, build, and maintain back-end services and systems that support our AI-powered products, all whilst meeting launch deadlines. * Assist in the development and optimization of scalable, high-performance systems to support large volumes of data and machine ..
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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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        Technical Architect

        Bicycle Therapeutics
        Cambridge, Cambridgeshire
        Competitive
        Bicycle Therapeutics is a clinical-stage pharmaceutical company developing a novel class of medicines, referred to as Bicycle molecules, for diseases that are underserved by existing therapeutics. Bicycle molecules are fully synthetic short peptides constrained with small molecule scaffolds to form two loops that stabilize their structural geometry. This constraint facilitates target binding with high affinity and selectivity, making Bicycle molecules attractive candidates for drug development. The company is evaluating zelenectide pevedotin (formerly BT8009), a Bicycle Drug Conjugate (BDC) targeting Nectin-4, a well-validated tumor antigen; BT5528, a BDC molecule targeting EphA2, a historically undruggable target; and BT7480, a Bicycle Tumor-Targeted Immune Cell Agonist (Bicycle TICA) targeting Nectin-4 and agonizing CD137, in company-sponsored clinical trials.
        Bicycle Therapeutics is a clinical-stage pharmaceutical company developing a novel class of medicines, referred to as Bicycle molecules, for diseases that are underserved by existing therapeutics. Bicycle molecules are fully synthetic short peptides constrained with small molecule scaffolds to form two loops that stabilize their structural geometry. This constraint facilitates target binding with high affinity and selectivity, making Bicycle molecules attractive candidates for drug development. The company is evaluating zelenectide pevedotin (formerly BT8009), a Bicycle Drug Conjugate (BDC) targeting Nectin-4, a well-validated tumor antigen; BT5528, a BDC molecule targeting EphA2, a historically undruggable target; and BT7480, a Bicycle Tumor-Targeted Immune Cell Agonist (Bicycle TICA) targeting Nectin-4 and agonizing CD137, in company-sponsored clinical trials.
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        Any company can tell you about how they are a multi award winning, market leading business and yes, we are both of those things in the world of IoT connectivity! But were more than that. Our mission? To make IoT management a breeze for any device, anywhere. With over 10 million IoT subscriptions active in 165 countries and direct partnerships with 50 mobile networks, we connect you to more than 750 networks worldwide, delivering unmatched value across the IoT connectivity chain. Innovation is in our DNA, and we have an insatiable hunger to wow! While we may not always get it right, our drive to collaborate, innovate, and achieve top-notch customer satisfaction never wavers. We offer industry expertise, stellar service support, and the most flexible, resilient, and secure connectivity solutions on the market.
        Any company can tell you about how they are a multi award winning, market leading business and yes, we are both of those things in the world of IoT connectivity! But were more than that. Our mission? To make IoT management a breeze for any device, anywhere. With over 10 million IoT subscriptions active in 165 countries and direct partnerships with 50 mobile networks, we connect you to more than 750 networks worldwide, delivering unmatched value across the IoT connectivity chain. Innovation is in our DNA, and we have an insatiable hunger to wow! While we may not always get it right, our drive to collaborate, innovate, and achieve top-notch customer satisfaction never wavers. We offer industry expertise, stellar service support, and the most flexible, resilient, and secure connectivity solutions on the market.
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        Company Overview - At Motorola Solutions, we believe that everything starts with our people. Were a global close-knit community, united by the relentless pursuit to help keep people safer everywhere. Our critical communications, video security and command center technologies support public safety agencies and enterprises alike, enabling the coordination thats critical for safer communities, safer schools, safer hospitals and safer businesses. Connect with a career that matters, and help us build a safer future. Department Overview - The Senior Software Security Engineer will be responsible for analysing software designs and implementations from a security perspective, identifying and proposing remediations to security issues throughout the software development lifecycle (SDLC). Job Description - This role is primarily hybrid, with occasional travel to our UK offices,
        Company Overview - At Motorola Solutions, we believe that everything starts with our people. Were a global close-knit community, united by the relentless pursuit to help keep people safer everywhere. Our critical communications, video security and command center technologies support public safety agencies and enterprises alike, enabling the coordination thats critical for safer communities, safer schools, safer hospitals and safer businesses. Connect with a career that matters, and help us build a safer future. Department Overview - The Senior Software Security Engineer will be responsible for analysing software designs and implementations from a security perspective, identifying and proposing remediations to security issues throughout the software development lifecycle (SDLC). Job Description - This role is primarily hybrid, with occasional travel to our UK offices,
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