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17 Contract API jobs in Wallingford + 20 miles
393 exact matches jobs are outside your preferred location
Identifying and reviewing the costs of the migration and ongoing costs of running of the new system, including any potential cost savings and efficiencies, such as those from the introduction of an API as part of the new system.
Identifying and reviewing the costs of the migration and ongoing costs of running of the new system, including any potential cost savings and efficiencies, such as those from the introduction of an API as part of the new system.
Composition: Enable business users and external systems to tailor and orchestrate Algolia results using a flexible API and UI.
Composition: Enable business users and external systems to tailor and orchestrate Algolia results using a flexible API and UI.
API / Microservice Testing experience
API / Microservice Testing experience
We process hundreds of API requests per second from operators and respond back with latency in milliseconds.
We process hundreds of API requests per second from operators and respond back with latency in milliseconds.
You can interact confidently with cloud platforms including AWS & GCP via CLI and/or API
You can interact confidently with cloud platforms including AWS & GCP via CLI and/or API
Strong technical understanding of data delivery and API technologies, protocols and best practises
Strong technical understanding of data delivery and API technologies, protocols and best practises
Experience with API-first platforms and optimizing front-end systems that consume complex API data.
Experience with API-first platforms and optimizing front-end systems that consume complex API data.
Familiarity with API integrations, data security, and reporting frameworks
Familiarity with API integrations, data security, and reporting frameworks
Experience in managing SaaS and API products with good understanding of XML, JSON and REST.
Experience in managing SaaS and API products with good understanding of XML, JSON and REST.
Facilitate Onboarding: You'll be responsible for the technical onboarding of new clients, guiding them through API documentation, troubleshooting integration issues, and ensuring a seamless transition.
Facilitate Onboarding: You'll be responsible for the technical onboarding of new clients, guiding them through API documentation, troubleshooting integration issues, and ensuring a seamless transition.
The platform is a Rust based application and our API is mostly built on Workers or Golang.
The platform is a Rust based application and our API is mostly built on Workers or Golang.
Work on our cloud components which include our API backend services and Kubernetes controllers.
Work on our cloud components which include our API backend services and Kubernetes controllers.
Good understanding of API technologies and troubleshooting
Good understanding of API technologies and troubleshooting
At the time of inception, cloud-based systems and API fluency were new.
At the time of inception, cloud-based systems and API fluency were new.
Data & Analytics Product Manager (London, New York, or Singapore)
Data & Analytics Product Manager (London, New York, or Singapore)
Lloyds List Intelligence
London
Competitive
Strong technical understanding of data delivery and API technologies, protocols and best practises
Strong technical understanding of data delivery and API technologies, protocols and best practises
Role Senior Consultant - Technology Inrule BRMS & .Net - Business Unit INS-ADM - Compensation Competitive (including bonus) We are seeking a highly skilled senior developer with expertise in InRule Business Rules Management System (BRMS) and .NET technologies . The ideal candidate will have 7+ years of overall IT experience, including 23 years of hands-on experience with InRule , and will be responsible for leading the design, development, and integration of rule-based solutions within enterprise applications. Your role * Lead the design and implementation of business rule solutions using InRule BRMS. * Collaborate with business analysts and stakeholders to gather rule requirements and translate them into technical specifications. * Integrate InRule with enterprise applications and APIs, including .NET, RESTful services, and cloud platforms.
Role Senior Consultant - Technology Inrule BRMS & .Net - Business Unit INS-ADM - Compensation Competitive (including bonus) We are seeking a highly skilled senior developer with expertise in InRule Business Rules Management System (BRMS) and .NET technologies . The ideal candidate will have 7+ years of overall IT experience, including 23 years of hands-on experience with InRule , and will be responsible for leading the design, development, and integration of rule-based solutions within enterprise applications. Your role * Lead the design and implementation of business rule solutions using InRule BRMS. * Collaborate with business analysts and stakeholders to gather rule requirements and translate them into technical specifications. * Integrate InRule with enterprise applications and APIs, including .NET, RESTful services, and cloud platforms.
Want a 3D Career? Join Norgine. At Norgine, our colleagues Dare themselves to be different and try new things, Drive to achieve their goals and beyond, and Develop themselves and their community. We call it the 3D career at Norgine and it offers you a fully-rounded experience with no limits. Bring everything about yourself that youre proud of, whether thats your passion for making a difference, focus on others well-being, or intellectual curiosity to unleash in a fast-paced environment and supportive community. In return, get a sense of belonging, a long-term career with ongoing development and upskilling, and a company that cares about peoples wellness as much as you do. Norgine: Transforming Healthcare, Backed by Over a Century of Expertise. We have an exciting opportunity for an Enterprise Architect to join Norgine.
Want a 3D Career? Join Norgine. At Norgine, our colleagues Dare themselves to be different and try new things, Drive to achieve their goals and beyond, and Develop themselves and their community. We call it the 3D career at Norgine and it offers you a fully-rounded experience with no limits. Bring everything about yourself that youre proud of, whether thats your passion for making a difference, focus on others well-being, or intellectual curiosity to unleash in a fast-paced environment and supportive community. In return, get a sense of belonging, a long-term career with ongoing development and upskilling, and a company that cares about peoples wellness as much as you do. Norgine: Transforming Healthcare, Backed by Over a Century of Expertise. We have an exciting opportunity for an Enterprise Architect to join Norgine.
Provide guidance to customers who are implementing solutions using the Sprinklr API. * Analyze backend code and API requests/responses. * Create API Extensions using 3rd party API endpoints to be consumed within Sprinklr workflows. * Proven track record with API-based integrations (REST, JSON, authentication flows such as OAuth 2.0).
Provide guidance to customers who are implementing solutions using the Sprinklr API. * Analyze backend code and API requests/responses. * Create API Extensions using 3rd party API endpoints to be consumed within Sprinklr workflows. * Proven track record with API-based integrations (REST, JSON, authentication flows such as OAuth 2.0).
Distributed Systems Engineer - Data Platform (Delivery, Database, Retrieval)
Distributed Systems Engineer - Data Platform (Delivery, Database, Retrieval)
Cloudflare
London
Competitive
This includes developing our public GraphQL API, building robust log delivery solutions and integrations with customer destinations, and contributing to our alerting products, which empower users to configure and receive near real-time alerts based on the logs and metrics observed by our data platform.
This includes developing our public GraphQL API, building robust log delivery solutions and integrations with customer destinations, and contributing to our alerting products, which empower users to configure and receive near real-time alerts based on the logs and metrics observed by our data platform.
Are you an experienced Lead Java Developer with a proven track record of delivering high-quality, scalable solutions? Do you have expertise in working on large projects in financial markets and excellent communication and problem-solving skills? You then have a fantastic opportunity to join a multidisciplinary team and work on impactful projects within the financial markets, where cutting-edge technology meets complex business needs. In this hybrid role, youll lead the development of enterprise-grade solutions, collaborating with stakeholders to design, build and maintain microservices that power the future of financial systems. Youll also have the opportunity to address architectural decisions, optimize database performance and mentor junior team members, ensuring best practices and robust engineering standards across the board. Responsibilities
Are you an experienced Lead Java Developer with a proven track record of delivering high-quality, scalable solutions? Do you have expertise in working on large projects in financial markets and excellent communication and problem-solving skills? You then have a fantastic opportunity to join a multidisciplinary team and work on impactful projects within the financial markets, where cutting-edge technology meets complex business needs. In this hybrid role, youll lead the development of enterprise-grade solutions, collaborating with stakeholders to design, build and maintain microservices that power the future of financial systems. Youll also have the opportunity to address architectural decisions, optimize database performance and mentor junior team members, ensuring best practices and robust engineering standards across the board. Responsibilities
Contractual hours - 36.25 - Basis - Full time - Job category/type * Central Functions - Date posted - 10/09/2025 - REQ003131 - Location: London Grade: Consultant Employment Type: Permanent, Full Time Remote REQ003131 - XPS Pensions Group is no ordinary company. We've earned numerous awards and accolades, making us an industry leader in Pensions Consultancy. As the largest pure pensions consultancy in the UK, we are a team of approximately 2000 employees spread across 15 locations nationwide. Listed on the London Stock Exchange Main Market, we pride ourselves on our ability to think and act differently, offering expert advice to over 1600 pension schemes and administering pensions for over 1,000,000 members. We are currently seeking Power Platform Developer to join our IT team. XPS Group IT provides IT services to all 2000 employees in offices located across the UK and
Contractual hours - 36.25 - Basis - Full time - Job category/type * Central Functions - Date posted - 10/09/2025 - REQ003131 - Location: London Grade: Consultant Employment Type: Permanent, Full Time Remote REQ003131 - XPS Pensions Group is no ordinary company. We've earned numerous awards and accolades, making us an industry leader in Pensions Consultancy. As the largest pure pensions consultancy in the UK, we are a team of approximately 2000 employees spread across 15 locations nationwide. Listed on the London Stock Exchange Main Market, we pride ourselves on our ability to think and act differently, offering expert advice to over 1600 pension schemes and administering pensions for over 1,000,000 members. We are currently seeking Power Platform Developer to join our IT team. XPS Group IT provides IT services to all 2000 employees in offices located across the UK and
Enterprise Data Architect (Platform Documentation) - 3/6 month - Remote
Enterprise Data Architect (Platform Documentation) - 3/6 month - Remote
Fourth Limited
London
Competitive
Our Story - In July 2019, Fourth joined forces with HotSchedules to become the global leader in end-to-end restaurant and hospitality management technology solutions. Together, the merged company now represents the worlds largest and only provider of end-to-end restaurant and hospitality management solutions for customers across the globe and of all sizes, from a single location or franchisee restaurant to a global restaurant or hotel chain. The combined companys complete software-as-service (SaaS) solution suite including scheduling, time & attendance, applicant tracking, training, inventory management / procurement, HR / benefits and payroll services now serves customers in 120,000 locations worldwide and is supported by a dedicated, unified team across offices in the US, UK, Bulgaria, China, Australia, and UAE. Interested in joining our smart, fun, and talented tea
Our Story - In July 2019, Fourth joined forces with HotSchedules to become the global leader in end-to-end restaurant and hospitality management technology solutions. Together, the merged company now represents the worlds largest and only provider of end-to-end restaurant and hospitality management solutions for customers across the globe and of all sizes, from a single location or franchisee restaurant to a global restaurant or hotel chain. The combined companys complete software-as-service (SaaS) solution suite including scheduling, time & attendance, applicant tracking, training, inventory management / procurement, HR / benefits and payroll services now serves customers in 120,000 locations worldwide and is supported by a dedicated, unified team across offices in the US, UK, Bulgaria, China, Australia, and UAE. Interested in joining our smart, fun, and talented tea
About Us - Do you want to work on the most pressing problem of our generation? Do you have experience building great products and know what it's like to roll up your sleeves and execute well, while building a company around you for the long term? If you truly know what it feels like to fly the plane while trying to build it, we want to hear from you. We're looking for the best software engineers in the world to join a growing series A startup. At CarbonChain we see the climate crisis as a transformative opportunity for the global economy, and a rewarding career opportunity for those excited to take on the challenge in a rapidly growing market. Decarbonizing the economy requires a granular, real-time view of where emissions come from and how they might be reduced. We've built software to automate the carbon footprinting of supply chains so their emissions can be measur
About Us - Do you want to work on the most pressing problem of our generation? Do you have experience building great products and know what it's like to roll up your sleeves and execute well, while building a company around you for the long term? If you truly know what it feels like to fly the plane while trying to build it, we want to hear from you. We're looking for the best software engineers in the world to join a growing series A startup. At CarbonChain we see the climate crisis as a transformative opportunity for the global economy, and a rewarding career opportunity for those excited to take on the challenge in a rapidly growing market. Decarbonizing the economy requires a granular, real-time view of where emissions come from and how they might be reduced. We've built software to automate the carbon footprinting of supply chains so their emissions can be measur
At Medtronic you can begin a life-long career of exploration and innovation, while helping champion healthcare access and equity for all. Youll lead with purpose, breaking down barriers to innovation in a more connected, compassionate world. A Day in the Life - The Digital Technologies Business Unit (DTBU) at Medtronic is implementing cutting-edge AI technology, computer vision, and augmented reality in the operating room (OR) to augment surgical coaching, and eventually, performance. Our goal is to deliver safer surgery around the world. Our Touch SurgeryTM Video solution is an innovative video management and data analytics platform for hospitals that includes the DS1 Computer, our first OR device, allowing surgeons, OR team members, and trainees to securely access videos of their procedures shortly after surgery.
At Medtronic you can begin a life-long career of exploration and innovation, while helping champion healthcare access and equity for all. Youll lead with purpose, breaking down barriers to innovation in a more connected, compassionate world. A Day in the Life - The Digital Technologies Business Unit (DTBU) at Medtronic is implementing cutting-edge AI technology, computer vision, and augmented reality in the operating room (OR) to augment surgical coaching, and eventually, performance. Our goal is to deliver safer surgery around the world. Our Touch SurgeryTM Video solution is an innovative video management and data analytics platform for hospitals that includes the DS1 Computer, our first OR device, allowing surgeons, OR team members, and trainees to securely access videos of their procedures shortly after surgery.
We are a fast-growing, research-driven company building an artificial intelligence that helps online publishers overcome the challenges they face every day. Using novel AI, we are revolutionising the publishing industry and have a track record of building things that others have ruled out as impossible. Leading names from around the world rely on our product every day, including The Times, Le Monde, The Guardian, Vogue and many more. About the Role: You will work closely with our Product team and Data Scientists to define and execute on the future path for our products. * Work closely with senior engineers to design, build, and maintain back-end services and systems that support our AI-powered products, all whilst meeting launch deadlines. * Assist in the development and optimization of scalable, high-performance systems to support large volumes of data and machine ..
We are a fast-growing, research-driven company building an artificial intelligence that helps online publishers overcome the challenges they face every day. Using novel AI, we are revolutionising the publishing industry and have a track record of building things that others have ruled out as impossible. Leading names from around the world rely on our product every day, including The Times, Le Monde, The Guardian, Vogue and many more. About the Role: You will work closely with our Product team and Data Scientists to define and execute on the future path for our products. * Work closely with senior engineers to design, build, and maintain back-end services and systems that support our AI-powered products, all whilst meeting launch deadlines. * Assist in the development and optimization of scalable, high-performance systems to support large volumes of data and machine ..