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146 API jobs in Hertfordshire + 20 miles
655 exact matches jobs are outside your preferred location
SQL, API integration skills, or experience with workflow automation.
SQL, API integration skills, or experience with workflow automation.
You'll be joining the core backend team that underpins every Quidax product from deposits and swaps to merchant payments and our API rails.
You'll be joining the core backend team that underpins every Quidax product from deposits and swaps to merchant payments and our API rails.
Strong technical skills: HTML, CSS, basic JavaScript, API integrations, Workato and troubleshooting.
Strong technical skills: HTML, CSS, basic JavaScript, API integrations, Workato and troubleshooting.
Oversee API integration strategy, including duplication checks, system alignment, and end-to-end flow * Strong business acumen with a clear understanding of technical API integration principles and tools
Oversee API integration strategy, including duplication checks, system alignment, and end-to-end flow * Strong business acumen with a clear understanding of technical API integration principles and tools
AWS Services - including Lambda (Java), Secrets Manager, API Gateways
AWS Services - including Lambda (Java), Secrets Manager, API Gateways
Working with top developers from around the world, helping to implement Kong Products and Technologies, including our API Gateway, AI Gateway and ServiceMesh solutions - Kong is THE cloud native API platform with the fastest, most adopted API gateway in the world (over 300m downloads!). As the innovation leader of cloud API technologies, Kong is on a mission to enable companies around the world to become "API-first" and securely accelerate AI adoption. 83% of web traffic today is API calls!
Working with top developers from around the world, helping to implement Kong Products and Technologies, including our API Gateway, AI Gateway and ServiceMesh solutions - Kong is THE cloud native API platform with the fastest, most adopted API gateway in the world (over 300m downloads!). As the innovation leader of cloud API technologies, Kong is on a mission to enable companies around the world to become "API-first" and securely accelerate AI adoption. 83% of web traffic today is API calls!
Knowledge of Salesforces API
Knowledge of Salesforces API
Iterable or similar ESP (Advantageous): Strong knowledge of data feeds, journey building, custom events, API integrations, and dynamic content blocks.
Iterable or similar ESP (Advantageous): Strong knowledge of data feeds, journey building, custom events, API integrations, and dynamic content blocks.
Expertise in React, Hooks, Context API, TypeScript, and related frontend tools.
Expertise in React, Hooks, Context API, TypeScript, and related frontend tools.
Communicate and collaborate with product developers, QA, API users, and other stake holders.
Communicate and collaborate with product developers, QA, API users, and other stake holders.
Demonstrated experience defining product specifications and user experiences across interfaces (API, CLI, GUI).
Demonstrated experience defining product specifications and user experiences across interfaces (API, CLI, GUI).
This includes Kubernetes API, custom resources, API aggregation, Helm, and manifest standardization.
This includes Kubernetes API, custom resources, API aggregation, Helm, and manifest standardization.
Implement and maintain API integrations with multiple trading platforms * API Development : Experience building and integrating with RESTful APIs, particularly for real-time applications
Implement and maintain API integrations with multiple trading platforms * API Development : Experience building and integrating with RESTful APIs, particularly for real-time applications
Implement and maintain relational database schemas and API integrations which interface the above with internal modeling and trading systems * API Development : Experience building and integrating with RESTful APIs, particularly for real-time applications
Implement and maintain relational database schemas and API integrations which interface the above with internal modeling and trading systems * API Development : Experience building and integrating with RESTful APIs, particularly for real-time applications
The capability to carry out performance tuning from the API to Application to Database layer of the platform.
The capability to carry out performance tuning from the API to Application to Database layer of the platform.
Job Description Summary - Join us at GE Vernova Grid Software to be part of the team leading the digital transformation of the energy market. As the worlds energy sector moves away from fossil fuels toward renewable energy sources, industrial companies are challenged with addressing this transition in transformative ways. Digitization will be key to making power-generating assets more efficient and the electric grid more secure and resilient. Our Geospatial products play a critical role in this transformation by supporting the design, modelling and maintenance of electric, gas and telecommunication networks. For more information on our strategy, check out GridOS overview ( will be a part of our Grid Software Engineering team, an Agile organization with a flexible working environment, where we are always looking to innovate our products and the processes and technologi
Job Description Summary - Join us at GE Vernova Grid Software to be part of the team leading the digital transformation of the energy market. As the worlds energy sector moves away from fossil fuels toward renewable energy sources, industrial companies are challenged with addressing this transition in transformative ways. Digitization will be key to making power-generating assets more efficient and the electric grid more secure and resilient. Our Geospatial products play a critical role in this transformation by supporting the design, modelling and maintenance of electric, gas and telecommunication networks. For more information on our strategy, check out GridOS overview ( will be a part of our Grid Software Engineering team, an Agile organization with a flexible working environment, where we are always looking to innovate our products and the processes and technologi
Confidence working with HTML/CSS for customisation and API integrations
Confidence working with HTML/CSS for customisation and API integrations
NEW
Our current stack includes Python, Django, Typescript, React, React Native, Next.js, and AWS serverless technologies (Lambda, S3, DynamoDB, API Gateway, SNS/SQS).
Our current stack includes Python, Django, Typescript, React, React Native, Next.js, and AWS serverless technologies (Lambda, S3, DynamoDB, API Gateway, SNS/SQS).
Strong knowledge in C++ Strong understanding of API design
Strong knowledge in C++ Strong understanding of API design
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.
[Nice to have] Experience in fintech, payments, or API-first companies
[Nice to have] Experience in fintech, payments, or API-first companies
Collaborate with back-end engineers to integrate APIs effectively, influence API design, and ensure reliable data flow, error handling, and system resilience.
Collaborate with back-end engineers to integrate APIs effectively, influence API design, and ensure reliable data flow, error handling, and system resilience.
Knowledge of configuration and integration security (API, etc.) for SaaS solutions
Knowledge of configuration and integration security (API, etc.) for SaaS solutions
Senior Data Test Automation Engineer
Senior Data Test Automation Engineer
Hawk-Eye Innovations Ltd
Basingstoke, Hampshire
£58,810 - £80,910 a year
Proven ability to build and maintain scalable test automation frameworks, with a focus on backend, API, and data systems using tools like Pytest and Postman. * Advanced skills in automating API and backend testing workflows, ensuring robust and reliable system interactions.
Proven ability to build and maintain scalable test automation frameworks, with a focus on backend, API, and data systems using tools like Pytest and Postman. * Advanced skills in automating API and backend testing workflows, ensuring robust and reliable system interactions.
Knowledge of Workday Extend Graph API
Knowledge of Workday Extend Graph API