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2 Contract API jobs in East Sussex + 20 miles
340 exact matches jobs are outside your preferred location
Full-Stack Integration : Experience bridging frontend and backend systems, including API design, data flow optimisation, and end-to-end feature development.
Full-Stack Integration : Experience bridging frontend and backend systems, including API design, data flow optimisation, and end-to-end feature development.
Conduct application security testing, including API and web service assessments.
Conduct application security testing, including API and web service assessments.
Be it UI users, API users or our own developers.
Be it UI users, API users or our own developers.
Experience with API design (e.g. Swagger) and championing well-defined and documented APIs.
Experience with API design (e.g. Swagger) and championing well-defined and documented APIs.
Familiarity with basic API requests will also be highly valuable.
Familiarity with basic API requests will also be highly valuable.
Provide maximal visibility to merchants on their historical and upcoming settlements through dashboards and API * Experience API products and/or within a broader FinTech company.
Provide maximal visibility to merchants on their historical and upcoming settlements through dashboards and API * Experience API products and/or within a broader FinTech company.
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. o Strong understanding of APIs; experience in API usage is mandatory.
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. o Strong understanding of APIs; experience in API usage is mandatory.
Ability to design and build end-to-end applications and API integrations.
Ability to design and build end-to-end applications and API integrations.
We are building the first European Investment API that empowers businesses to offer seamless investment experiences to their users. We are looking for a full-time Head of Engineering to help us build a securities API for financial institutions, the first API of that kind in Europe. These teams are responsible for critical domains such as Orders, Trading Partner integrations, Position, and Wealth Management, all of which are essential for Upvests Investment API. The Brokerage Tribe plays a crucial role in the Investment API Platform, overseeing a wide range of user journey aspects. * Assume ownership of business-critical components within the Investment API, influencing its roadmap and delivering strategic impact to establish Upvest as a reliable partner. * Experience
We are building the first European Investment API that empowers businesses to offer seamless investment experiences to their users. We are looking for a full-time Head of Engineering to help us build a securities API for financial institutions, the first API of that kind in Europe. These teams are responsible for critical domains such as Orders, Trading Partner integrations, Position, and Wealth Management, all of which are essential for Upvests Investment API. The Brokerage Tribe plays a crucial role in the Investment API Platform, overseeing a wide range of user journey aspects. * Assume ownership of business-critical components within the Investment API, influencing its roadmap and delivering strategic impact to establish Upvest as a reliable partner. * Experience
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Senior Technical Consultant - ServiceNow UI / UX (EMEA-based)
Senior Technical Consultant - ServiceNow UI / UX (EMEA-based)
ServiceNow
City of London, London
Competitive
Perform hands-on implementation with the ServiceNow platform, leveraging all ServiceNow technologies and capabilities: Workflow Studio/ Flow Designer, JavaScript, REST/SOAP API integrations (incl. MID Servers), Single Sign-On and more
Perform hands-on implementation with the ServiceNow platform, leveraging all ServiceNow technologies and capabilities: Workflow Studio/ Flow Designer, JavaScript, REST/SOAP API integrations (incl. MID Servers), Single Sign-On and more
Mentor AI Application Engineers and other team members, guiding them on backend, API, and AI/ML integration patterns. * Strong knowledge of SaaS integrations and API development (REST, GraphQL).
Mentor AI Application Engineers and other team members, guiding them on backend, API, and AI/ML integration patterns. * Strong knowledge of SaaS integrations and API development (REST, GraphQL).
Our products include the Dune app for dashboards, the Analytics API, and Datashare.
Our products include the Dune app for dashboards, the Analytics API, and Datashare.
This includes the Dune app for dashboards, our Analytics API, and Datashare services offering onchain data across 100+ EVM/non-EVM chains. * Define positioning and messaging for Dunes analytics products, including the app, Analytics API, and Datashare, across EVM chains and major ecosystems and key datasets like dex.trades, prices.usd, and tokens.transfers.
This includes the Dune app for dashboards, our Analytics API, and Datashare services offering onchain data across 100+ EVM/non-EVM chains. * Define positioning and messaging for Dunes analytics products, including the app, Analytics API, and Datashare, across EVM chains and major ecosystems and key datasets like dex.trades, prices.usd, and tokens.transfers.
Typing is used within our Python stack to power automated documentation and API definitions * Have hands-on experience designing data flow through software, from persistent storage to API endpoints, while applying industry best practices for validation
Typing is used within our Python stack to power automated documentation and API definitions * Have hands-on experience designing data flow through software, from persistent storage to API endpoints, while applying industry best practices for validation
Implementation of Salesforce Flows to a high standard (e.g. screen flows, triggered flows, API flows)
Implementation of Salesforce Flows to a high standard (e.g. screen flows, triggered flows, API flows)
Experience writing effective unit and integration tests, including API mocks.
Experience writing effective unit and integration tests, including API mocks.
Join the API Revolution at Gravitee - Where Innovation Meets Growth - Since our beginnings in 2015, Gravitee has grown into a global force, recognised as a Gartner Magic Quadrant Leader for API Management in 2024 and 2025! What started with four developers challenging the complexities of APIs has evolved into a revolutionary platform powering API and event stream ecosystems worldwide. Be part of a team thats redefining whats possible in API management, and shaping the future of digital transformation. Gravitee.io is taking APIs to the next level, we are the premier, open-source API platform and we want everyone to know how amazing our software is. * API Integration & Development: Leverage REST APIs to connect disparate systems, troubleshoot integration issues, and ens
Join the API Revolution at Gravitee - Where Innovation Meets Growth - Since our beginnings in 2015, Gravitee has grown into a global force, recognised as a Gartner Magic Quadrant Leader for API Management in 2024 and 2025! What started with four developers challenging the complexities of APIs has evolved into a revolutionary platform powering API and event stream ecosystems worldwide. Be part of a team thats redefining whats possible in API management, and shaping the future of digital transformation. Gravitee.io is taking APIs to the next level, we are the premier, open-source API platform and we want everyone to know how amazing our software is. * API Integration & Development: Leverage REST APIs to connect disparate systems, troubleshoot integration issues, and ens
Design, develop, and execute automated test scripts on communication/API layers. * Extensive experience in developing coded API tests with PactumJS, SpecFlow, REST Assured or similar
Design, develop, and execute automated test scripts on communication/API layers. * Extensive experience in developing coded API tests with PactumJS, SpecFlow, REST Assured or similar
We are seeking a proactive and growth-driven CRM Architect to support our VIP and Growth teams by managing the implementation, configuration, and ongoing support of a dedicated CRM platform. The ideal candidate will possess expertise in CRM solutions (e.g., Salesforce), have a strategic mindset for solving business challenges, and act as a thought partner in scaling the VIP program and growth-focused initiatives. This role will play a critical part in delivering a best-in-class experience for our relationship managers, our high-value clients and enabling business growth through the CRM system. Responsibilities * Serve as the primary architect for the CRM platform, overseeing day-to-day configuration, user support, and system optimization. * Design and customize CRM objects, fields, workflows, reports, dashboards, and page layouts to address evolving business needs.
We are seeking a proactive and growth-driven CRM Architect to support our VIP and Growth teams by managing the implementation, configuration, and ongoing support of a dedicated CRM platform. The ideal candidate will possess expertise in CRM solutions (e.g., Salesforce), have a strategic mindset for solving business challenges, and act as a thought partner in scaling the VIP program and growth-focused initiatives. This role will play a critical part in delivering a best-in-class experience for our relationship managers, our high-value clients and enabling business growth through the CRM system. Responsibilities * Serve as the primary architect for the CRM platform, overseeing day-to-day configuration, user support, and system optimization. * Design and customize CRM objects, fields, workflows, reports, dashboards, and page layouts to address evolving business needs.
Role Technical Test Lead - Technology Test Automation Architect - Location London, United Kingdom - Compensation Competitive (including bonus) Job Description - Today, the corporate landscape is dynamic and the world ahead is full of possibilities! None of the amazing things we do at Infosys would be possible without an equally amazing culture, the environment where ideas can flourish and where you are empowered to move forward as far as your ideas will take you. At Infosys, we assure that your career will never stand still, we will inspire you to build whats next and we will navigate further together. Our journey of learnability, values and trusted relationships with our clients continue to be the cornerstones of our organization and these values are upheld only because of our people. Your role - As a Test Automation Lead, you will be instrumental in shaping and exec
Role Technical Test Lead - Technology Test Automation Architect - Location London, United Kingdom - Compensation Competitive (including bonus) Job Description - Today, the corporate landscape is dynamic and the world ahead is full of possibilities! None of the amazing things we do at Infosys would be possible without an equally amazing culture, the environment where ideas can flourish and where you are empowered to move forward as far as your ideas will take you. At Infosys, we assure that your career will never stand still, we will inspire you to build whats next and we will navigate further together. Our journey of learnability, values and trusted relationships with our clients continue to be the cornerstones of our organization and these values are upheld only because of our people. Your role - As a Test Automation Lead, you will be instrumental in shaping and exec
Documenting product designs, data flows and API specs, and maintaining backlog in Jira or similar tools
Documenting product designs, data flows and API specs, and maintaining backlog in Jira or similar tools
Join the API Revolution at Gravitee - Where Innovation Meets Growth - Since our beginnings in 2015, Gravitee has grown into a global force, recognised as a 2024 Gartner Magic Quadrant Leader for API Management. What started with four developers challenging the complexities of APIs has evolved into a revolutionary platform powering API and event stream ecosystems worldwide. Be part of a team thats redefining whats possible in API management, and shaping the future of digital transformation. Gravitee.io is taking APIs to the next level, we are the premier open source API platform and we want everyone to know how amazing our software is. o Ability to work for one of the fastest-growing companies and alongside some of the most talented people in the API technology sector
Join the API Revolution at Gravitee - Where Innovation Meets Growth - Since our beginnings in 2015, Gravitee has grown into a global force, recognised as a 2024 Gartner Magic Quadrant Leader for API Management. What started with four developers challenging the complexities of APIs has evolved into a revolutionary platform powering API and event stream ecosystems worldwide. Be part of a team thats redefining whats possible in API management, and shaping the future of digital transformation. Gravitee.io is taking APIs to the next level, we are the premier open source API platform and we want everyone to know how amazing our software is. o Ability to work for one of the fastest-growing companies and alongside some of the most talented people in the API technology sector
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
Date: 30 Sept 2025 - Location: London, GB, EC2V 7AD - Company: Paysafe - Paysafe is a leading payments platform with an extensive track record of serving merchants and consumers in the global entertainment sectors. Its core purpose is to enable businesses and consumers to connect and transact seamlessly through industry-leading capabilities in payment processing, digital wallet, and online cash solutions. With 29 years of online payment experience, an annualized transactional volume of $152 billion in 2024, and approximately 3,300 employees located in 12+ countries, Paysafe connects businesses and consumers across 260 payment types in 48 currencies around the world. Delivered through an integrated platform, Paysafe solutions are geared toward mobile-initiated transactions, real-time analytics and the convergence between brick-and-mortar and online payments.
Date: 30 Sept 2025 - Location: London, GB, EC2V 7AD - Company: Paysafe - Paysafe is a leading payments platform with an extensive track record of serving merchants and consumers in the global entertainment sectors. Its core purpose is to enable businesses and consumers to connect and transact seamlessly through industry-leading capabilities in payment processing, digital wallet, and online cash solutions. With 29 years of online payment experience, an annualized transactional volume of $152 billion in 2024, and approximately 3,300 employees located in 12+ countries, Paysafe connects businesses and consumers across 260 payment types in 48 currencies around the world. Delivered through an integrated platform, Paysafe solutions are geared toward mobile-initiated transactions, real-time analytics and the convergence between brick-and-mortar and online payments.
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