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22 Contract API jobs in Hertfordshire + 20 miles
109 exact matches jobs are outside your preferred location
Ensure consistency in user experience, API design, and operational processes across the capability.
Ensure consistency in user experience, API design, and operational processes across the capability.
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. * Taking the lead on strategic launches of payments and API-first products, from planning and messaging, to content and enablement across commercial and technical audiences * Expertise in payments, fintech or banking,, confident in navigating the nuances of financial products, global payouts, regulatory considerations, and API-first platforms.
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. * Taking the lead on strategic launches of payments and API-first products, from planning and messaging, to content and enablement across commercial and technical audiences * Expertise in payments, fintech or banking,, confident in navigating the nuances of financial products, global payouts, regulatory considerations, and API-first platforms.
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Front Office Quantitative Software Engineer
Front Office Quantitative Software Engineer
Banco Bilbao Vizcaya t/a Bbva Finance (Uk) Ltd
London
Competitive
Experience with the Murex platform and Murex Flex API.
Experience with the Murex platform and Murex Flex API.
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Experience of RESTful API Design and authentication with OAUTH
Experience of RESTful API Design and authentication with OAUTH
Proficient in API design, development & production operation
Proficient in API design, development & production operation
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You can design a RESTful API and list all the pros and cons of your design * You have an API-first product mindset: you care about customer outcomes and you like to listen to their use-cases before diving into code
You can design a RESTful API and list all the pros and cons of your design * You have an API-first product mindset: you care about customer outcomes and you like to listen to their use-cases before diving into code
3+ years of experience with API.
3+ years of experience with API.
Partner with Engineering for API-driven integrations and maintain data connectors to our dashboard. Our API-first platform provides fully automated validators, staking & DeFi protocols access, and comprehensive data and commission management.
Partner with Engineering for API-driven integrations and maintain data connectors to our dashboard. Our API-first platform provides fully automated validators, staking & DeFi protocols access, and comprehensive data and commission management.
We are now scaling up with applications designed for major meeting platforms, real-time communication channels, and a powerful Public API to extend our functionality to a broader set of applications.
We are now scaling up with applications designed for major meeting platforms, real-time communication channels, and a powerful Public API to extend our functionality to a broader set of applications.
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You enjoy sweating the details of both user experience and API design.
You enjoy sweating the details of both user experience and API design.
Integration Lead- Salesforce Education Cloud-Student Systems Implementation
Integration Lead- Salesforce Education Cloud-Student Systems Implementation
InterQuest Group (UK) Limited
UK
£500 - 550 per day
Excellent skills in designing and delivering integrations using Microsoft Azure PaaS (Functions, Logic Apps, API Management, Service Bus,) * Expertise in integration strategy, API management, and canonical data models.
Excellent skills in designing and delivering integrations using Microsoft Azure PaaS (Functions, Logic Apps, API Management, Service Bus,) * Expertise in integration strategy, API management, and canonical data models.
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Knowledge of API integration for interaction on the React app
Knowledge of API integration for interaction on the React app
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A Senior ServiceNow Developer is sought by our client to work with their team to deliver continuous improvement and development of the Roadmap for end users. The existing team is a mixture of their own resources and 3rd party suppliers. You will be a highly experienced ServiceNow consultant, with a proven track record in ServiceNow development, including certification and experience in implementing different ServiceNow implementation levels and components.. Key Details * INSIDE IR35 * Remote working - Hybrid model * 2 days per week on-site available across various UK locations * 4 months * Must be UK resident * Must be able to work without sponsorship - Essential Criteria * Significant previous experience of working at a Senior ServiceNow level, including Architecture and Developer * Strong solution design experience, including helping influence product roadmaps and s
A Senior ServiceNow Developer is sought by our client to work with their team to deliver continuous improvement and development of the Roadmap for end users. The existing team is a mixture of their own resources and 3rd party suppliers. You will be a highly experienced ServiceNow consultant, with a proven track record in ServiceNow development, including certification and experience in implementing different ServiceNow implementation levels and components.. Key Details * INSIDE IR35 * Remote working - Hybrid model * 2 days per week on-site available across various UK locations * 4 months * Must be UK resident * Must be able to work without sponsorship - Essential Criteria * Significant previous experience of working at a Senior ServiceNow level, including Architecture and Developer * Strong solution design experience, including helping influence product roadmaps and s
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Expertise in cloud architecture, microservices, API gateway design, DevOps practices, datapipelines, and enterprise service mesh architecture.
Expertise in cloud architecture, microservices, API gateway design, DevOps practices, datapipelines, and enterprise service mesh architecture.
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At ZeroAvia, were clean sky thinkers. For the world to achieve truly clean, guilt-free flight, we need a scalable solution; hydrogen-electric powertrains. As a leader in zero-emission aviation and a UK Jet Zero Council member, were designing and commercialising hydrogen-powered solutions that will positively impact the future of aviation, global connectivity, and the world. Engineering designs our next-generation hydrogen electric engines. Working across Hydrogen, Propulsion and Integration divisions, they solve technical problems and help decarbonize aviation by finding solutions for electric propulsion, hydrogen storage, fuel cell technology, power distribution, thermal management and more. Join us at Cotswold Airport, home to some of our aircraft and the workplace of many ZeroAvians. Located just outside the historic market town of Cirencester, youll experience a .
At ZeroAvia, were clean sky thinkers. For the world to achieve truly clean, guilt-free flight, we need a scalable solution; hydrogen-electric powertrains. As a leader in zero-emission aviation and a UK Jet Zero Council member, were designing and commercialising hydrogen-powered solutions that will positively impact the future of aviation, global connectivity, and the world. Engineering designs our next-generation hydrogen electric engines. Working across Hydrogen, Propulsion and Integration divisions, they solve technical problems and help decarbonize aviation by finding solutions for electric propulsion, hydrogen storage, fuel cell technology, power distribution, thermal management and more. Join us at Cotswold Airport, home to some of our aircraft and the workplace of many ZeroAvians. Located just outside the historic market town of Cirencester, youll experience a .
You understand and care deeply about the developer journey, from first API call to production deployment.
You understand and care deeply about the developer journey, from first API call to production deployment.
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Collaborate with Ops Tech to manage API use, system performance, and platform scalability. * Working knowledge of JavaScript or Python for API interactions for customizations.
Collaborate with Ops Tech to manage API use, system performance, and platform scalability. * Working knowledge of JavaScript or Python for API interactions for customizations.
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Liaise and collaborate with internal stakeholders such as TAs, SMEs and other discipline Engineers to deliver structural engineering services ensuring compliance with industry design standards (ISO, API, DNV, NORSOK, etc.) and certification requirements.
Liaise and collaborate with internal stakeholders such as TAs, SMEs and other discipline Engineers to deliver structural engineering services ensuring compliance with industry design standards (ISO, API, DNV, NORSOK, etc.) and certification requirements.
You'll drive key capabilities like multi-tenancy, RBAC, and API experiences to meet the needs of our largest enterprise customers and MSSP partners. As a Lead Product Manager, your primary responsibility will be to own critical enterprise capabilities including multi-tenancy experiences, user access management (RBAC and data access control), API experiences, and foundational account infrastructure. * Strong understanding of enterprise platform requirements, particularly in multi-tenant environments, role-based access control (RBAC), identity and access management (IAM), and API development.
You'll drive key capabilities like multi-tenancy, RBAC, and API experiences to meet the needs of our largest enterprise customers and MSSP partners. As a Lead Product Manager, your primary responsibility will be to own critical enterprise capabilities including multi-tenancy experiences, user access management (RBAC and data access control), API experiences, and foundational account infrastructure. * Strong understanding of enterprise platform requirements, particularly in multi-tenant environments, role-based access control (RBAC), identity and access management (IAM), and API development.
Mentor SREs in developing orchestration pipelines, IaC modules, and secure API integrations.
Mentor SREs in developing orchestration pipelines, IaC modules, and secure API integrations.
Salary: £60,000 - £80,000 - Why Midnite? Midnite is a next-generation betting platform that is built for todays fandom. We are a collective of engineers and designers who all share a passion for building the best sportsbook & casino experience possible, allowing our fans to feel closer to the games they love through the rush of winning money. Unlike the alternatives, Midnite doesn't feel like a website built two decades ago. Instead, it's a cutting-edge creation, designed and constructed from the ground up with the latest technologies. Crafting an experience that's truly intuitive, immersive, and immediately understandable is no walk in the park, but we thrive on the challenge. We believe we're on the brink of creating something truly awesome. What will you do? Were looking for a backend engineer who is eager to continue their development and grow under the guidance o
Salary: £60,000 - £80,000 - Why Midnite? Midnite is a next-generation betting platform that is built for todays fandom. We are a collective of engineers and designers who all share a passion for building the best sportsbook & casino experience possible, allowing our fans to feel closer to the games they love through the rush of winning money. Unlike the alternatives, Midnite doesn't feel like a website built two decades ago. Instead, it's a cutting-edge creation, designed and constructed from the ground up with the latest technologies. Crafting an experience that's truly intuitive, immersive, and immediately understandable is no walk in the park, but we thrive on the challenge. We believe we're on the brink of creating something truly awesome. What will you do? Were looking for a backend engineer who is eager to continue their development and grow under the guidance o
Role & Responsibilities - Role Overview - As a Junior Backend Engineer at Grabyo; you will have exposure to the backend APIs and services that power the core of the Grabyo Platform. Some days, you might be part of the team behind key features like building markers in the Live clipping or AI-powered highlights workflows. Other days, you could contribute to evolving our architecture as we advance towards a scalable, microservices-based platform. Java, Spring, Go, Node.js, NoSQL, serverless architectures, microservices, Terraform, AWS SAM, DynamoDB, media processing, Terraform, AWS Lambda these are a few of the state-of-the-art techs you will be working with - To make sure you keep growing your knowledge around tech, we provide you with professional development opportunities like Hackathons, development budget and pair programming days to improve our automated testing cu
Role & Responsibilities - Role Overview - As a Junior Backend Engineer at Grabyo; you will have exposure to the backend APIs and services that power the core of the Grabyo Platform. Some days, you might be part of the team behind key features like building markers in the Live clipping or AI-powered highlights workflows. Other days, you could contribute to evolving our architecture as we advance towards a scalable, microservices-based platform. Java, Spring, Go, Node.js, NoSQL, serverless architectures, microservices, Terraform, AWS SAM, DynamoDB, media processing, Terraform, AWS Lambda these are a few of the state-of-the-art techs you will be working with - To make sure you keep growing your knowledge around tech, we provide you with professional development opportunities like Hackathons, development budget and pair programming days to improve our automated testing cu
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The Senior Backend Engineer is responsible for building and maintaining the server-side systems that power DRESTs luxury mobile game and supporting platform. This role plays a critical part in the performance, reliability, and scalability of our backend architecture, ensuring smooth operation of our live services and enabling feature delivery across the organisation. As a hands-on contributor, the Senior Backend Engineer designs, implements, and optimises backend services, collaborating closely with client, DevOps, and data teams. Reporting to the Lead Backend Engineer, you will also support technical planning and mentor other engineers, helping to shape the future of backend engineering at DREST. What you will be accountable for * Delivering high-quality, maintainable backend code and features on time, aligned with established codebase architectural standards and cov
The Senior Backend Engineer is responsible for building and maintaining the server-side systems that power DRESTs luxury mobile game and supporting platform. This role plays a critical part in the performance, reliability, and scalability of our backend architecture, ensuring smooth operation of our live services and enabling feature delivery across the organisation. As a hands-on contributor, the Senior Backend Engineer designs, implements, and optimises backend services, collaborating closely with client, DevOps, and data teams. Reporting to the Lead Backend Engineer, you will also support technical planning and mentor other engineers, helping to shape the future of backend engineering at DREST. What you will be accountable for * Delivering high-quality, maintainable backend code and features on time, aligned with established codebase architectural standards and cov
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At Convergence Group, weve spent the last 20 years building a business that lasts - powered by resilience, continuous improvement, and a product-led mindset. Now, were scaling fast and shaking up an industry thats ripe for innovation. As a Software Engineer at Convergence, youll play a key role across the entire software development lifecycle, from planning and architecture through delivery and maintenance. Youll help us evolve our connectivity products and internal tools using modern technologies -while contributing to an engineering culture that values clean code, autonomy, and continuous improvement. * Build and maintain high-quality, scalable web applications using C#, JavaScript, web development frameworks and libraries (e.g. React, Next.js, Blazor), and Azure services. * Design intuitive front-end experiences and robust back-end logic with seamless client-server
At Convergence Group, weve spent the last 20 years building a business that lasts - powered by resilience, continuous improvement, and a product-led mindset. Now, were scaling fast and shaking up an industry thats ripe for innovation. As a Software Engineer at Convergence, youll play a key role across the entire software development lifecycle, from planning and architecture through delivery and maintenance. Youll help us evolve our connectivity products and internal tools using modern technologies -while contributing to an engineering culture that values clean code, autonomy, and continuous improvement. * Build and maintain high-quality, scalable web applications using C#, JavaScript, web development frameworks and libraries (e.g. React, Next.js, Blazor), and Azure services. * Design intuitive front-end experiences and robust back-end logic with seamless client-server
Salary: £90,000 - £110,000 - Why Midnite? Midnite is a next-generation betting platform that is built for todays fandom. We are a collective of engineers and designers who all share a passion for building the best sportsbook & casino experience possible, allowing our fans to feel closer to the games they love through the rush of winning money. Unlike the alternatives, Midnite doesn't feel like a website built two decades ago. Instead, it's a cutting-edge creation, designed and constructed from the ground up with the latest technologies. Crafting an experience that's truly intuitive, immersive, and immediately understandable is no walk in the park, but we thrive on the challenge. We believe we're on the brink of creating something truly awesome. What will you do? We're searching for a skilled senior backend engineer to play a pivotal role in shaping Midnite's technolog
Salary: £90,000 - £110,000 - Why Midnite? Midnite is a next-generation betting platform that is built for todays fandom. We are a collective of engineers and designers who all share a passion for building the best sportsbook & casino experience possible, allowing our fans to feel closer to the games they love through the rush of winning money. Unlike the alternatives, Midnite doesn't feel like a website built two decades ago. Instead, it's a cutting-edge creation, designed and constructed from the ground up with the latest technologies. Crafting an experience that's truly intuitive, immersive, and immediately understandable is no walk in the park, but we thrive on the challenge. We believe we're on the brink of creating something truly awesome. What will you do? We're searching for a skilled senior backend engineer to play a pivotal role in shaping Midnite's technolog