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16 Contract API jobs in Cambridgeshire + 20 miles
278 exact matches jobs are outside your preferred location
At Klaviyo, we value the unique backgrounds, experiences and perspectives each Klaviyo (we call ourselves Klaviyos) brings to our workplace each and every day. We believe everyone deserves a fair shot at success and appreciate the experiences each person brings beyond the traditional job requirements. If you're a close but not exact match with the description, we hope you'll still consider applying. Want to learn more about life at Klaviyo? At Klaviyo, we believe the future of software lies not in productivity tools for human users but in software that can run and optimize itself based on outcome or reward metrics. We've built the infrastructure and application that serve as the interface between businesses and consumers. We now have over 167,000 customers, billions of consumer profiles, and hundreds of billions of customer messages and follow-on conversion data.
At Klaviyo, we value the unique backgrounds, experiences and perspectives each Klaviyo (we call ourselves Klaviyos) brings to our workplace each and every day. We believe everyone deserves a fair shot at success and appreciate the experiences each person brings beyond the traditional job requirements. If you're a close but not exact match with the description, we hope you'll still consider applying. Want to learn more about life at Klaviyo? At Klaviyo, we believe the future of software lies not in productivity tools for human users but in software that can run and optimize itself based on outcome or reward metrics. We've built the infrastructure and application that serve as the interface between businesses and consumers. We now have over 167,000 customers, billions of consumer profiles, and hundreds of billions of customer messages and follow-on conversion data.
At Klaviyo, we value the unique backgrounds, experiences and perspectives each Klaviyo (we call ourselves Klaviyos) brings to our workplace each and every day. We believe everyone deserves a fair shot at success and appreciate the experiences each person brings beyond the traditional job requirements. If you're a close but not exact match with the description, we hope you'll still consider applying. Want to learn more about life at Klaviyo? Lead Software AI Engineer - At Klaviyo, we believe the future of software lies not in productivity tools for human users but in software that can run and optimize itself based on outcome or reward metrics. We've built the infrastructure and application that serve as the interface between businesses and consumers. We now have over 167,000 customers, billions of consumer profiles, and hundreds of billions of customer messages and fol
At Klaviyo, we value the unique backgrounds, experiences and perspectives each Klaviyo (we call ourselves Klaviyos) brings to our workplace each and every day. We believe everyone deserves a fair shot at success and appreciate the experiences each person brings beyond the traditional job requirements. If you're a close but not exact match with the description, we hope you'll still consider applying. Want to learn more about life at Klaviyo? Lead Software AI Engineer - At Klaviyo, we believe the future of software lies not in productivity tools for human users but in software that can run and optimize itself based on outcome or reward metrics. We've built the infrastructure and application that serve as the interface between businesses and consumers. We now have over 167,000 customers, billions of consumer profiles, and hundreds of billions of customer messages and fol
About Mesh-AI - We're a transformation consultancy and we exist to reimagine how enterprises operate, making data and AI their competitive advantage. We turn enterprises into data-driven and AI enabled organisations, unleashing business growth and accelerating outcomes. We're building an open, collaborative culture and we are always on the lookout for top talent to join us in our next phase of growth. If you're interested in working on business-defining engagements with some of the brightest minds in the industry, apply below! Overview - Mesh-AI are seeking an exceptional Principal Software Engineer to lead delivery of exciting engagements within our Energy & Commodities Trading sector. This role demands a unique combination of hands-on technical excellence and deep domain expertise in trading environments.
About Mesh-AI - We're a transformation consultancy and we exist to reimagine how enterprises operate, making data and AI their competitive advantage. We turn enterprises into data-driven and AI enabled organisations, unleashing business growth and accelerating outcomes. We're building an open, collaborative culture and we are always on the lookout for top talent to join us in our next phase of growth. If you're interested in working on business-defining engagements with some of the brightest minds in the industry, apply below! Overview - Mesh-AI are seeking an exceptional Principal Software Engineer to lead delivery of exciting engagements within our Energy & Commodities Trading sector. This role demands a unique combination of hands-on technical excellence and deep domain expertise in trading environments.
Deep knowledge of enterprise architecture patterns, public cloud services (Azure, AWS), application design, integration patterns (API, event-driven), and data platforms.
Deep knowledge of enterprise architecture patterns, public cloud services (Azure, AWS), application design, integration patterns (API, event-driven), and data platforms.
Knowledge/ experience in API design, restful services
Knowledge/ experience in API design, restful services
Hands-on .NET experience, including C# and ASP.NET WEB API.
Hands-on .NET experience, including C# and ASP.NET WEB API.
Experience with RESTful API design and implementation.
Experience with RESTful API design and implementation.
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Architect and develop scalable and performant mission critical web applications using Next.js for front-end and Node.js for API development.
Architect and develop scalable and performant mission critical web applications using Next.js for front-end and Node.js for API development.
Experience of RESTful API design
Experience of RESTful API design
Understanding and/or experience in managing API-based software businesses
Understanding and/or experience in managing API-based software businesses
Familiarity with API testing and integration diagnostics
Familiarity with API testing and integration diagnostics
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Broad Testing Experience: Experience in front-end and API testing.
Broad Testing Experience: Experience in front-end and API testing.
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.
The Runa API empowers thousands of businesses to make payments to 5 billion+ consumers in 190+ countries instantly to cards, wallets, bank accounts and gift cards.
The Runa API empowers thousands of businesses to make payments to 5 billion+ consumers in 190+ countries instantly to cards, wallets, bank accounts and gift cards.
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Design and manage secure networking and service meshes (TLS, Istio, Linkerd, API gateways) to ensure encrypted and reliable service-to-service communication. * Experience designing and managing secure networking and service mesh (TLS, Istio, Linkerd, API gateways).
Design and manage secure networking and service meshes (TLS, Istio, Linkerd, API gateways) to ensure encrypted and reliable service-to-service communication. * Experience designing and managing secure networking and service mesh (TLS, Istio, Linkerd, API gateways).
Experience in consuming a RESTful API.
Experience in consuming a RESTful API.
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You possess a strong understanding of cloud computing, microservices, API design, and event-driven architectures.
You possess a strong understanding of cloud computing, microservices, API design, and event-driven architectures.
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Provides advanced knowledge of API development, API management, and implementation strategies to enhance scalability and system efficiency.
Provides advanced knowledge of API development, API management, and implementation strategies to enhance scalability and system efficiency.
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Designed robust data architectures with a strong grasp of distributed systems, API development, and the patterns that make complex data processing reliable and maintainable.
Designed robust data architectures with a strong grasp of distributed systems, API development, and the patterns that make complex data processing reliable and maintainable.
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Description - ADP is hiring a Lead Application Developer. Are you empathetic to client needs and inspired by transformation and impacting the lives of millions of people every day? Are you looking to join a dynamic, inclusive team environment with a culture of collaboration and belonging? Well, this may be the role for you. Ready to design what's next? In this role, you will work within a scrum team to bring the designs and ideas to life for new or improved web applications. This work will support a mix of internal and external clients. You will work with clients, product managers, architects, software engineers, and more to plan, design, develop, test, and implement impactful solutions that support 850k Small business clients across the USA. You will start your day on a scrum call to prioritize and track work.
Description - ADP is hiring a Lead Application Developer. Are you empathetic to client needs and inspired by transformation and impacting the lives of millions of people every day? Are you looking to join a dynamic, inclusive team environment with a culture of collaboration and belonging? Well, this may be the role for you. Ready to design what's next? In this role, you will work within a scrum team to bring the designs and ideas to life for new or improved web applications. This work will support a mix of internal and external clients. You will work with clients, product managers, architects, software engineers, and more to plan, design, develop, test, and implement impactful solutions that support 850k Small business clients across the USA. You will start your day on a scrum call to prioritize and track work.
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software embedded in HSMs, client-side tools, API libraries. * Embedded and application development over the range from embedded code & drivers, to client-side tools & API libraries.
software embedded in HSMs, client-side tools, API libraries. * Embedded and application development over the range from embedded code & drivers, to client-side tools & API libraries.
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Shopify Technical Lead/ Tech Lead/ Principle developer/ Shopify/ Remote * Title: Shopify Tech Lead * Domain: Agency, Shopify * Salary: up to £70k * Location: UK (remote) * Tech: Shopify, Shopify Plus, Liquid, APIs, JavaScript, HTML, Vite - We're looking for a Shopify Technical Lead to drive technical excellence, lead development teams, and deliver world-class Shopify solutions. You'll architect scalable systems, oversee code quality, mentor developers, and collaborate with stakeholders to ensure projects succeed. * Lead Shopify web/app development projects from design to delivery * Provide technical leadership, code reviews, and mentorship * Ensure best practices in CI/CD, performance, and accessibility * Collaborate with clients, PMs, and BAs to align on goals * Support and inspire your team to grow professionally
Shopify Technical Lead/ Tech Lead/ Principle developer/ Shopify/ Remote * Title: Shopify Tech Lead * Domain: Agency, Shopify * Salary: up to £70k * Location: UK (remote) * Tech: Shopify, Shopify Plus, Liquid, APIs, JavaScript, HTML, Vite - We're looking for a Shopify Technical Lead to drive technical excellence, lead development teams, and deliver world-class Shopify solutions. You'll architect scalable systems, oversee code quality, mentor developers, and collaborate with stakeholders to ensure projects succeed. * Lead Shopify web/app development projects from design to delivery * Provide technical leadership, code reviews, and mentorship * Ensure best practices in CI/CD, performance, and accessibility * Collaborate with clients, PMs, and BAs to align on goals * Support and inspire your team to grow professionally
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Test Automation: Build and maintain robust, scalable test automation frameworks for API, integration, and end-to-end tests within the MLOps pipeline. * Experience with automation tools (e.g., Selenium, Playwright, Cypress) and API testing tools (e.g., Postman, REST Assured).
Test Automation: Build and maintain robust, scalable test automation frameworks for API, integration, and end-to-end tests within the MLOps pipeline. * Experience with automation tools (e.g., Selenium, Playwright, Cypress) and API testing tools (e.g., Postman, REST Assured).
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Understanding of RESTful API development and microservices.
Understanding of RESTful API development and microservices.
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Hands-on experience with Microsoft Azure and associated PaaS services (e.g., Azure Functions, AKS, API Management). * Strong expertise in RESTful API design, versioning, testing, and lifecycle management.
Hands-on experience with Microsoft Azure and associated PaaS services (e.g., Azure Functions, AKS, API Management). * Strong expertise in RESTful API design, versioning, testing, and lifecycle management.
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