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23 Contract API jobs in Hertfordshire + 20 miles
222 exact matches jobs are outside your preferred location
We are seeking a DevOps Engineer to join our Computational Development team in the UK. The ideal candidate will have a strong willingness to collaborate and grow within a team that values modern software delivery practices. This role centers on supporting CI/CD pipeline development, infrastructure automation, and deployment workflows using industry-standard DevOps tools and approaches. Your next role - As part of our code development team, you will contribute to the modernization of engineering practices across a multidisciplinary consultancy. Youll work closely with developers, product owners, and technical leads to help deliver high-quality, maintainable solutions that support the needs of the Architecture, Engineering, and Construction (AEC) industry. Key duties - Software Development (C# / .NET) * Develop and maintain applications and toolkits using C# and .NET.
We are seeking a DevOps Engineer to join our Computational Development team in the UK. The ideal candidate will have a strong willingness to collaborate and grow within a team that values modern software delivery practices. This role centers on supporting CI/CD pipeline development, infrastructure automation, and deployment workflows using industry-standard DevOps tools and approaches. Your next role - As part of our code development team, you will contribute to the modernization of engineering practices across a multidisciplinary consultancy. Youll work closely with developers, product owners, and technical leads to help deliver high-quality, maintainable solutions that support the needs of the Architecture, Engineering, and Construction (AEC) industry. Key duties - Software Development (C# / .NET) * Develop and maintain applications and toolkits using C# and .NET.
About Lendable - Lendable is on a mission to make consumer finance amazing: faster, cheaper, and friendlier. * One of the UKs newest unicorns with a team of just over 600 people * Among the fastest-growing tech companies in the UK * Profitable since 2017 * Backed by top investors including Balderton Capital and Goldman Sachs * Loved by customers with the best reviews in the market (4.9 across 10,000s of reviews on Trustpilot) So far, weve rebuilt the Big Three consumer finance products from scratch: loans, credit cards and car finance . We get money into our customers hands in minutes instead of days. Were growing fast, and theres a lot more to do: were going after the two biggest Western markets (UK and US) where trillions worth of financial products are held by big banks with dated systems and painful processes. Join us if you want to * Take ownership across a broad
About Lendable - Lendable is on a mission to make consumer finance amazing: faster, cheaper, and friendlier. * One of the UKs newest unicorns with a team of just over 600 people * Among the fastest-growing tech companies in the UK * Profitable since 2017 * Backed by top investors including Balderton Capital and Goldman Sachs * Loved by customers with the best reviews in the market (4.9 across 10,000s of reviews on Trustpilot) So far, weve rebuilt the Big Three consumer finance products from scratch: loans, credit cards and car finance . We get money into our customers hands in minutes instead of days. Were growing fast, and theres a lot more to do: were going after the two biggest Western markets (UK and US) where trillions worth of financial products are held by big banks with dated systems and painful processes. Join us if you want to * Take ownership across a broad
Introduction - Join us at Gallagher Re, the trailblazers of the reinsurance world, where every day brings new opportunities to shape the future. We empower our clients with cutting-edge analytics and insights, providing them the confidence to make strategic decisions that transform industries. As a team member, you'll be at the forefront of innovation, translating data into impactful solutions and taking the reins of your career like never before. We believe that every candidate brings something special to the table, including you! So, even if you feel that youre close but not an exact match, we encourage you to apply. Overview - We are seeking a skilled Full-Stack Product Manager to own the delivery of technology products within our Digital and Technology function. This role supports our Analytics partners (catastrophe modelling and actuarial teams) in driving busine
Introduction - Join us at Gallagher Re, the trailblazers of the reinsurance world, where every day brings new opportunities to shape the future. We empower our clients with cutting-edge analytics and insights, providing them the confidence to make strategic decisions that transform industries. As a team member, you'll be at the forefront of innovation, translating data into impactful solutions and taking the reins of your career like never before. We believe that every candidate brings something special to the table, including you! So, even if you feel that youre close but not an exact match, we encourage you to apply. Overview - We are seeking a skilled Full-Stack Product Manager to own the delivery of technology products within our Digital and Technology function. This role supports our Analytics partners (catastrophe modelling and actuarial teams) in driving busine
Papaya Global is reinventing global payroll, payments, and workforce management by delivering a unified platform that simplifies and automates workforce operations in over 160 countries. Our mission is to modernize global payroll and payments, empowering companies to scale with confidence while ensuring compliance, security, and speed. As we continue our rapid growth, we are looking for a Product Manager with expertise in global payments and financial infrastructure to drive the next generation of Papayas payment products. The Role - This is a critical role focused on building and scaling Papayas payments network and infrastructure at a global level. You will be responsible for defining strategy, roadmap, and execution of products that enable compliant, secure, and efficient cross-border workforce payments.
Papaya Global is reinventing global payroll, payments, and workforce management by delivering a unified platform that simplifies and automates workforce operations in over 160 countries. Our mission is to modernize global payroll and payments, empowering companies to scale with confidence while ensuring compliance, security, and speed. As we continue our rapid growth, we are looking for a Product Manager with expertise in global payments and financial infrastructure to drive the next generation of Papayas payment products. The Role - This is a critical role focused on building and scaling Papayas payments network and infrastructure at a global level. You will be responsible for defining strategy, roadmap, and execution of products that enable compliant, secure, and efficient cross-border workforce payments.
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.
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.
Hands-on .NET experience, including C# and ASP.NET WEB API.
Hands-on .NET experience, including C# and ASP.NET WEB API.
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 with API design (REST, GraphQL), service-oriented architecture, and event-driven systems is a major plus.
Experience with API design (REST, GraphQL), service-oriented architecture, and event-driven systems is a major plus.
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
Engineering Maintenance Technician Senior Lead Coordinator (6 month FTC)
Engineering Maintenance Technician Senior Lead Coordinator (6 month FTC)
Jazz Pharmaceuticals UK Limited
Sittingbourne, Kent
Competitive
Provide mechanical support for the API, Commercial Filling and Packaging Operation at KSP
Provide mechanical support for the API, Commercial Filling and Packaging Operation at KSP
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.
Experience with ARTIQ systems, or controlling hardware via python API.
Experience with ARTIQ systems, or controlling hardware via python API.
Understanding of API gateways, micro services and state of the art cloud technologies.
Understanding of API gateways, micro services and state of the art cloud technologies.
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).
Preferred: Familiarity with the development of REST API services
Preferred: Familiarity with the development of REST API services
Demonstrated skills in cyber threat modeling, malware reverse engineering, and API-triggered automation.
Demonstrated skills in cyber threat modeling, malware reverse engineering, and API-triggered automation.
Minimum of 5 years experience as a C# Developer with proficiency in Python, .NET framework and C# as well as experience with ML.NET, ASP.NET, MVC, Web API Containers (Docker/Kubernetes), Machine Learning Operations (MLOps) and CI/CD
Minimum of 5 years experience as a C# Developer with proficiency in Python, .NET framework and C# as well as experience with ML.NET, ASP.NET, MVC, Web API Containers (Docker/Kubernetes), Machine Learning Operations (MLOps) and CI/CD
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.
NEW
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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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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Cybersecurity Incident Response Specialist - CONTRACT OPPORTUNITY * Remote with occasional trips to London (not expensed). * £750.00 per day. * 6 months. * ASAP start, ASAP interviews. * Right to work in the UK mandatory. The Cybersecurity Incident Response Specialist will be responsible for investigating, analysing and providing specialist expertise for the resolution of security incidents / attacks aimed at the client. Support the long-term strategic goals of Cyber Operations pillar support Senior Analysts and Analysts in managing incidents and liaise with SOC engineers to ensure appropriate security measures, technologies and processes are in place to avoid reoccurrence of incidents. * Demonstrate an ability to understand in detail how an incident has occurred without relying on alerts (e.g., reviewing logs and threat intelligence data).
Cybersecurity Incident Response Specialist - CONTRACT OPPORTUNITY * Remote with occasional trips to London (not expensed). * £750.00 per day. * 6 months. * ASAP start, ASAP interviews. * Right to work in the UK mandatory. The Cybersecurity Incident Response Specialist will be responsible for investigating, analysing and providing specialist expertise for the resolution of security incidents / attacks aimed at the client. Support the long-term strategic goals of Cyber Operations pillar support Senior Analysts and Analysts in managing incidents and liaise with SOC engineers to ensure appropriate security measures, technologies and processes are in place to avoid reoccurrence of incidents. * Demonstrate an ability to understand in detail how an incident has occurred without relying on alerts (e.g., reviewing logs and threat intelligence data).
NEW
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Backend API development + frontend (React/JavaScript) for annotation tools.
Backend API development + frontend (React/JavaScript) for annotation tools.
PREMIUM
Experience with real-time model inference and API development (e.g., FastAPI, Flask).
Experience with real-time model inference and API development (e.g., FastAPI, Flask).