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        • Hertfordshire

        30 Permanent API jobs in Hertford + 20 miles

        195 exact matches jobs are outside your preferred location

        Software Architect

        Ventula Consulting Limited
        London
        £85,000 per annum
        Proven track record in API design and development.
        Proven track record in API design and development.
        5+ years experience in working with the .NET framework, particularly with ASP.NET Core, React/React Native, C#, Web API Experience developing REST API-driven mobile first web applications
        5+ years experience in working with the .NET framework, particularly with ASP.NET Core, React/React Native, C#, Web API Experience developing REST API-driven mobile first web applications
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        NEW
        There's a focus on backend and API development although you'll also have elements of front end work with JavaScript and React.js.
        There's a focus on backend and API development although you'll also have elements of front end work with JavaScript and React.js.
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        NEWPREMIUM
        Integrate messaging campaigns into our existing lifecycle stack (e.g., Braze, WhatsApp Business API). * Technical fluency with tools such as Braze, Twilio, or WhatsApp Business API, and a working knowledge of customer data flows.
        Integrate messaging campaigns into our existing lifecycle stack (e.g., Braze, WhatsApp Business API). * Technical fluency with tools such as Braze, Twilio, or WhatsApp Business API, and a working knowledge of customer data flows.
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        Hands-on experience with API integration projects , preferably using MuleSoft , and solid understanding of data contracts and end-to-end data flows in enterprise systems.
        Hands-on experience with API integration projects , preferably using MuleSoft , and solid understanding of data contracts and end-to-end data flows in enterprise systems.
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        NEW
        Conduct different testing types and adapt them to the project need: functional testing, regression testing, API testing, integration testing, security testing, performance testing, contract testing. * Implement and maintain automated testing framework for UI, API and AI/ML solutions. * Proficiency in UI and API test automation tools like cypress, cucumber, postman, pytest.
        Conduct different testing types and adapt them to the project need: functional testing, regression testing, API testing, integration testing, security testing, performance testing, contract testing. * Implement and maintain automated testing framework for UI, API and AI/ML solutions. * Proficiency in UI and API test automation tools like cypress, cucumber, postman, pytest.
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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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        NEW
        We are looking for an ambitious, warm and inquisitive individual to join our Development team as a Quadient Inspire Developer for variable omni-channel communications. You will be reporting directly to the Head of Development. Ability to install/setup/maintain and develop Inspire Interactive. 1. Advanced in Inspire Designer - 2. Advanced in Inspire Designer Scripting - 3. Highly knowledgeable in Inspire Interactive - 4. Advanced in Inspire Scaler or Inspire Automation ( Scaler preferable but plenty of crossover and transferable skills from automation) 5. Able to create and setup new tenants / companies in Interactive - 6. Confident in creating and managing base templates within Interactive - 7. Confident in creating and managing templates within Interactive - 8. Confident in managing approval processes (an Interactive approval process) including adding basic forms to
        We are looking for an ambitious, warm and inquisitive individual to join our Development team as a Quadient Inspire Developer for variable omni-channel communications. You will be reporting directly to the Head of Development. Ability to install/setup/maintain and develop Inspire Interactive. 1. Advanced in Inspire Designer - 2. Advanced in Inspire Designer Scripting - 3. Highly knowledgeable in Inspire Interactive - 4. Advanced in Inspire Scaler or Inspire Automation ( Scaler preferable but plenty of crossover and transferable skills from automation) 5. Able to create and setup new tenants / companies in Interactive - 6. Confident in creating and managing base templates within Interactive - 7. Confident in creating and managing templates within Interactive - 8. Confident in managing approval processes (an Interactive approval process) including adding basic forms to
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        NEW

        Web Integration Analyst

        BENEFACT GROUP PLC T/A ECCLESIASTICAL INSURANCE GROUP PLC
        South Ockendon, Essex
        £30,000 - £35,000 a year
        Salary: £30,000.00 - £35,000.00 (depending on experience) Working hours: 35 hours per week - Duration: Permanent Location: South Ockendon - About the role - Lloyd & Whyte , who are proudly part of Benefact Group , are looking for a Web Integration Analyst to join our Technical Operations team in their South Ockendon office. As a Web Integration Analyst you will be responsible for create, support and maintain group web development and integrations ensuring they are accessible, compliant, up to date and that issues are resolved in an acceptable time frame. Why join us? Join a collaborative and inclusive culture thats committed to making a difference and building a more sustainable future. Ranked amongst the UK's top 50 Best Large Companies to Work For in 2024, we offer fantastic career and development opportunities within a rapidly growing, innovative Groupwhere all pro
        Salary: £30,000.00 - £35,000.00 (depending on experience) Working hours: 35 hours per week - Duration: Permanent Location: South Ockendon - About the role - Lloyd & Whyte , who are proudly part of Benefact Group , are looking for a Web Integration Analyst to join our Technical Operations team in their South Ockendon office. As a Web Integration Analyst you will be responsible for create, support and maintain group web development and integrations ensuring they are accessible, compliant, up to date and that issues are resolved in an acceptable time frame. Why join us? Join a collaborative and inclusive culture thats committed to making a difference and building a more sustainable future. Ranked amongst the UK's top 50 Best Large Companies to Work For in 2024, we offer fantastic career and development opportunities within a rapidly growing, innovative Groupwhere all pro
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        NEW
        London, United Kingdom - About DataCamp - DataCamp's mission is to empower everyone with the data and AI skills essential for 21st-century success. By providing practical, engaging learning experiences, DataCamp equips learners and organizations of all sizes to harness the power of data and AI. As a trusted partner to over 17 million learners and 6,000+ companies, including 80% of the Fortune 1000, DataCamp is leading the charge in addressing the critical data and AI skills shortage. About the role - We are looking for a Product Manager to drive innovation and technical enablement projects that empower DataCamp's learning experience at scale. You'll partner closely with Engineering, Curriculum, and Design to identify opportunities at the intersection of pedagogy and technology, bringing forward ambitious ideas and turning them into high-impact solutions.
        London, United Kingdom - About DataCamp - DataCamp's mission is to empower everyone with the data and AI skills essential for 21st-century success. By providing practical, engaging learning experiences, DataCamp equips learners and organizations of all sizes to harness the power of data and AI. As a trusted partner to over 17 million learners and 6,000+ companies, including 80% of the Fortune 1000, DataCamp is leading the charge in addressing the critical data and AI skills shortage. About the role - We are looking for a Product Manager to drive innovation and technical enablement projects that empower DataCamp's learning experience at scale. You'll partner closely with Engineering, Curriculum, and Design to identify opportunities at the intersection of pedagogy and technology, bringing forward ambitious ideas and turning them into high-impact solutions.
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        NEW

        Data Analyst

        SEVEN INVESTMENT MANAGEMENT LLP - T/a 7IM LLP
        London
        Competitive
        About The Role Purpose - Reporting to the Head of Data Insight & Analytics, this role will support with the development and progression of 7IMs business intelligence and insight capability. Sitting within the Data & Analytics team, this role will directly support 7IMs Private Wealth brands through building dashboards, insight tools and supporting key stakeholders, including the Private Wealth business heads, with data-driven decision making. The role would suit an experienced and driven individual who is looking for an opportunity to advance their understanding of data, working closely with business leaders to generate meaningful insight. Responsibilities * Act as the subject matter expert (SME) for data analytics and visualization to 7IMs Private Wealth brands (Partners Wealth Management, Amicus Wealth, Johnston Carmichael Wealth and 7IM Private Client).
        About The Role Purpose - Reporting to the Head of Data Insight & Analytics, this role will support with the development and progression of 7IMs business intelligence and insight capability. Sitting within the Data & Analytics team, this role will directly support 7IMs Private Wealth brands through building dashboards, insight tools and supporting key stakeholders, including the Private Wealth business heads, with data-driven decision making. The role would suit an experienced and driven individual who is looking for an opportunity to advance their understanding of data, working closely with business leaders to generate meaningful insight. Responsibilities * Act as the subject matter expert (SME) for data analytics and visualization to 7IMs Private Wealth brands (Partners Wealth Management, Amicus Wealth, Johnston Carmichael Wealth and 7IM Private Client).
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        NEW
        DriveScore is searching for an experienced Android Engineer to join our innovative engineering team. This role offers a unique opportunity to drive significant improvements and advancements in DriveScores use of Kotlin Multiplatform Mobile (KMM), delivering seamless features across both iOS and Android platforms from a single codebase. DriveScores mission is to disrupt the car insurance market by making it more transparent, accessible, and user-centric than ever before. Leveraging cutting-edge telematics technology and data analytics, DriveScore provides users with personalised car insurance offers and insights, helping people make informed decisions about their car insurance needs. As a Senior Android Engineer, you will have strong Kotlin knowledge, guiding DriveScores native engineering strategy, collaborating across squads, and mentoring other engineers.
        DriveScore is searching for an experienced Android Engineer to join our innovative engineering team. This role offers a unique opportunity to drive significant improvements and advancements in DriveScores use of Kotlin Multiplatform Mobile (KMM), delivering seamless features across both iOS and Android platforms from a single codebase. DriveScores mission is to disrupt the car insurance market by making it more transparent, accessible, and user-centric than ever before. Leveraging cutting-edge telematics technology and data analytics, DriveScore provides users with personalised car insurance offers and insights, helping people make informed decisions about their car insurance needs. As a Senior Android Engineer, you will have strong Kotlin knowledge, guiding DriveScores native engineering strategy, collaborating across squads, and mentoring other engineers.
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        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. We're building a Developer Experience team focused on empowering our engineering organization with tools,
        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. We're building a Developer Experience team focused on empowering our engineering organization with tools,
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        We are looking for a CRM Technology Manager (CRM Braze Specialist) to join our Martech team. This role will play a critical part in the successful delivery of our global Braze migration and, beyond migration, will take ownership for unlocking new features and capabilities within Braze to accelerate ClearScores CRM strategy. Youll combine technical expertise, problem-solving, and cross-functional collaboration to ensure our lifecycle marketing platforms are stable, scalable, and delivering measurable business impact. Key Responsibilities - Migration Delivery * Support the migration of remaining markets to Braze, ensuring stability, consistency, and minimal disruption. * Quickly learn and manage delivery from our legacy CEP (Blueshift), ensuring smooth transition off the platform and into Braze. * Partner with CRM, Data, and Engineering teams to configure Braze instance
        We are looking for a CRM Technology Manager (CRM Braze Specialist) to join our Martech team. This role will play a critical part in the successful delivery of our global Braze migration and, beyond migration, will take ownership for unlocking new features and capabilities within Braze to accelerate ClearScores CRM strategy. Youll combine technical expertise, problem-solving, and cross-functional collaboration to ensure our lifecycle marketing platforms are stable, scalable, and delivering measurable business impact. Key Responsibilities - Migration Delivery * Support the migration of remaining markets to Braze, ensuring stability, consistency, and minimal disruption. * Quickly learn and manage delivery from our legacy CEP (Blueshift), ensuring smooth transition off the platform and into Braze. * Partner with CRM, Data, and Engineering teams to configure Braze instance
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        Get to know The Pokémon Company International - The Pokémon Company International, a subsidiary of The Pokémon Company in Japan, manages the property outside of Asia and is responsible for brand management, licensing, marketing, the Pokémon Trading Card Game, the animated TV series, home entertainment, and the official Pokémon website. Pokémon was launched in Japan in 1996 and today is one of the most popular children's entertainment properties in the world. Get to know the role * Job Title: Manager, Software Development - This role is ideal for a technically adept leader with a strong understanding of modern cloud-native architectures, agile delivery, and platform engineering. Youll be responsible for ensuring the platform is scalable, resilient, and delivers a world-class shopping experience to Pokémon fans globally. * People Manager: Yes - What youll do
        Get to know The Pokémon Company International - The Pokémon Company International, a subsidiary of The Pokémon Company in Japan, manages the property outside of Asia and is responsible for brand management, licensing, marketing, the Pokémon Trading Card Game, the animated TV series, home entertainment, and the official Pokémon website. Pokémon was launched in Japan in 1996 and today is one of the most popular children's entertainment properties in the world. Get to know the role * Job Title: Manager, Software Development - This role is ideal for a technically adept leader with a strong understanding of modern cloud-native architectures, agile delivery, and platform engineering. Youll be responsible for ensuring the platform is scalable, resilient, and delivers a world-class shopping experience to Pokémon fans globally. * People Manager: Yes - What youll do
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        London - As the most trusted and fastest-growing global crypto company, it helps millions of people worldwide safely access cryptocurrency. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. We are looking for software engineers from a variety of technical backgrounds with a proven track record in building scalable, reliable and performant systems. You will play a critical role in building financial and crypto-native products, services and APIs. As a Senior Back-End Engineer you should lead by example - driving the technical discussions, influencing the approach and making a positive impact on the team's development by advocating the best engineering practices.
        London - As the most trusted and fastest-growing global crypto company, it helps millions of people worldwide safely access cryptocurrency. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. We are looking for software engineers from a variety of technical backgrounds with a proven track record in building scalable, reliable and performant systems. You will play a critical role in building financial and crypto-native products, services and APIs. As a Senior Back-End Engineer you should lead by example - driving the technical discussions, influencing the approach and making a positive impact on the team's development by advocating the best engineering practices.
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        Full Time Retail & Brand Solutions Team - VoucherCodes is part of Ziff Davis Shopping, which helps millions of shoppers discover and save, delivering exceptional consumer and merchant-advertiser experiences across a portfolio of leading mobile and ecommerce brands. We operate across multiple markets, connecting millions of consumers with top retailers worldwide. Right now, we're looking for a Test Engineer to work as part of our Engineering team in London. You will be joining a team of 25+ engineers in the UK across web, mobile and data, within a global team of 50+ engineers. As a Test Engineer you will be ensuring features are tested in an automated fashion to ensure maximum coverage to give our users the best possible experience. You know how testing fits within an agile environment and have an excellent attention to detail and are passionate about quality.
        Full Time Retail & Brand Solutions Team - VoucherCodes is part of Ziff Davis Shopping, which helps millions of shoppers discover and save, delivering exceptional consumer and merchant-advertiser experiences across a portfolio of leading mobile and ecommerce brands. We operate across multiple markets, connecting millions of consumers with top retailers worldwide. Right now, we're looking for a Test Engineer to work as part of our Engineering team in London. You will be joining a team of 25+ engineers in the UK across web, mobile and data, within a global team of 50+ engineers. As a Test Engineer you will be ensuring features are tested in an automated fashion to ensure maximum coverage to give our users the best possible experience. You know how testing fits within an agile environment and have an excellent attention to detail and are passionate about quality.
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        Do you want your voice heard and your actions to count? Discover your opportunity with Mitsubishi UFJ Financial Group (MUFG), one of the worlds leading financial groups. Across the globe, were 150,000 colleagues, striving to make a difference for every client, organization, and community we serve. We stand for our values, building long-term relationships, serving society, and fostering shared and sustainable growth for a better world. With a vision to be the worlds most trusted financial group, its part of our culture to put people first, listen to new and diverse ideas and collaborate toward greater innovation, speed and agility. This means investing in talent, technologies, and tools that empower you to own your career. Join MUFG, where being inspired is expected and making a meaningful impact is rewarded. We are MUFG. 360 years of heritage. A world-class set of bus
        Do you want your voice heard and your actions to count? Discover your opportunity with Mitsubishi UFJ Financial Group (MUFG), one of the worlds leading financial groups. Across the globe, were 150,000 colleagues, striving to make a difference for every client, organization, and community we serve. We stand for our values, building long-term relationships, serving society, and fostering shared and sustainable growth for a better world. With a vision to be the worlds most trusted financial group, its part of our culture to put people first, listen to new and diverse ideas and collaborate toward greater innovation, speed and agility. This means investing in talent, technologies, and tools that empower you to own your career. Join MUFG, where being inspired is expected and making a meaningful impact is rewarded. We are MUFG. 360 years of heritage. A world-class set of bus
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        ML Ops Engineer

        ELEMENT MATERIALS TECHNOLOGY LIMITED
        London
        Competitive
        Job Locations UK-London | Work From Your Own Home - 2025-17178 - Overview - We are seeking a highly skilled ML Ops Engineer to join our growing data team. This role is critical in designing and implementing robust, scalable, and efficient data systems that power analytics, machine learning models, and business insights. The ideal candidate will have expertise in data pipeline orchestration (e.g., Airflow), data lake and warehouse architecture and development, infrastructure as code (IaC) using Terraform , and data extraction from both structured and unstructured data sources (e.g. websites). Knowledge using the Microsoft Azure ecosystem, MLOps, Kubernetes , and other modern data engineering practices. Responsibilities * Leverage best practices in schema design, partitioning, and optimisation for efficient storage and retrieval.
        Job Locations UK-London | Work From Your Own Home - 2025-17178 - Overview - We are seeking a highly skilled ML Ops Engineer to join our growing data team. This role is critical in designing and implementing robust, scalable, and efficient data systems that power analytics, machine learning models, and business insights. The ideal candidate will have expertise in data pipeline orchestration (e.g., Airflow), data lake and warehouse architecture and development, infrastructure as code (IaC) using Terraform , and data extraction from both structured and unstructured data sources (e.g. websites). Knowledge using the Microsoft Azure ecosystem, MLOps, Kubernetes , and other modern data engineering practices. Responsibilities * Leverage best practices in schema design, partitioning, and optimisation for efficient storage and retrieval.
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        Frequently Asked Questions

        How many permanent API jobs are there in Hertford?
        There are 30 permanent API jobs within 20 miles of Hertford available on CWJobs right now.

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