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18 Contract API jobs in South East + 5 miles
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Job Title: Web Solutions Engineer/Full Stack Engineer - Location: Address: 1-13 St Giles High St, London WC2H 8AG - Mode of working: Hybrid (3 Days in the Office) Duration: 6+ Months contract initially - As a Web Solutions Engineer (WSE) you are responsible for building, designing, and deploying scalable, modern, web applications. You deliver full pieces of functionality on moderately complex projects with minimal assistance. You architect high quality web applications, and design key tools and systems that support said web applications. * Write and review code in JavaScript or TypeScript, Java, Kotlin, Golang, and/or SQL * Test, debug, maintain and/or update full-stack web applications. * Write and review technical documents, including design, development, and revision documents. * Collaborate with Product, UX, QA, and engineering teams, to deliver new features
Job Title: Web Solutions Engineer/Full Stack Engineer - Location: Address: 1-13 St Giles High St, London WC2H 8AG - Mode of working: Hybrid (3 Days in the Office) Duration: 6+ Months contract initially - As a Web Solutions Engineer (WSE) you are responsible for building, designing, and deploying scalable, modern, web applications. You deliver full pieces of functionality on moderately complex projects with minimal assistance. You architect high quality web applications, and design key tools and systems that support said web applications. * Write and review code in JavaScript or TypeScript, Java, Kotlin, Golang, and/or SQL * Test, debug, maintain and/or update full-stack web applications. * Write and review technical documents, including design, development, and revision documents. * Collaborate with Product, UX, QA, and engineering teams, to deliver new features
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Contract: Automated Test Engineer (SFIA 5) Rate: £400/day | Outside IR35 | Duration: 12 months - Security Clearance: NPPV2 / NPPV3 - We are seeking an experienced Automated Test Engineer to design and implement automated testing frameworks for complex systems. You will ensure both functional and non-functional requirements are met, working closely with stakeholders to deliver high-quality solutions in a fully remote, agile environment. * Develop and enhance automated testing across all stages of product, system, and service development. * Collaborate with stakeholders to define requirements, acceptance criteria, and ensure robust test coverage. * Implement automation-first strategies and best practices for repeatable, efficient testing. * Identify and adopt tools, techniques, and processes to strengthen testing frameworks. * Mentor and support less experienced test en
Contract: Automated Test Engineer (SFIA 5) Rate: £400/day | Outside IR35 | Duration: 12 months - Security Clearance: NPPV2 / NPPV3 - We are seeking an experienced Automated Test Engineer to design and implement automated testing frameworks for complex systems. You will ensure both functional and non-functional requirements are met, working closely with stakeholders to deliver high-quality solutions in a fully remote, agile environment. * Develop and enhance automated testing across all stages of product, system, and service development. * Collaborate with stakeholders to define requirements, acceptance criteria, and ensure robust test coverage. * Implement automation-first strategies and best practices for repeatable, efficient testing. * Identify and adopt tools, techniques, and processes to strengthen testing frameworks. * Mentor and support less experienced test en
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We're looking for an experienced Engineering Manager to oversee the technical migration of a Product Information Management (PIM) system - namely STIBO STEP - from an on-premise setup to a SaaS solution. This role requires close collaboration with internal product and engineering teams, as well as with external partners. * 10+ years in software engineering and delivery, with at least 5 years in leadership, principal, or managerial roles. * Strong expertise in PIM/MDM platforms, with hands-on experience in STIBO STEP essential. * Proven track record migrating enterprise applications to SaaS, ideally within large-scale, complex environments. * Languages: Java 17+ (Java 21 preferred) * Frameworks: Micronaut (preferred), Spring Boot * Testing: JUnit, Mockito * Build Tools: Gradle * Data & Messaging: Kafka, MongoDB * APIs: GraphQL Federation, REST
We're looking for an experienced Engineering Manager to oversee the technical migration of a Product Information Management (PIM) system - namely STIBO STEP - from an on-premise setup to a SaaS solution. This role requires close collaboration with internal product and engineering teams, as well as with external partners. * 10+ years in software engineering and delivery, with at least 5 years in leadership, principal, or managerial roles. * Strong expertise in PIM/MDM platforms, with hands-on experience in STIBO STEP essential. * Proven track record migrating enterprise applications to SaaS, ideally within large-scale, complex environments. * Languages: Java 17+ (Java 21 preferred) * Frameworks: Micronaut (preferred), Spring Boot * Testing: JUnit, Mockito * Build Tools: Gradle * Data & Messaging: Kafka, MongoDB * APIs: GraphQL Federation, REST
We are a fast-growing data-as-a-service provider helping businesses access high-quality business data via a robust REST API. As a Sales Engineer, you will work closely with our sales team to identify customer needs, explore potential solutions using our API, and ensure a smooth technical onboarding experience. * Explain API capabilities, data models, and integration workflows in a clear, customer-centric way * Evaluate customer challenges and propose tailored solutions using our REST API and MCP * Deliver demos, proof-of-concept support, and API walkthroughs * Solid understanding of APIs, REST, JSON, authentication (OAuth, API keys), and data workflows * Comfortable debugging basic integration issues (e.g., API calls, response errors, authentication p
We are a fast-growing data-as-a-service provider helping businesses access high-quality business data via a robust REST API. As a Sales Engineer, you will work closely with our sales team to identify customer needs, explore potential solutions using our API, and ensure a smooth technical onboarding experience. * Explain API capabilities, data models, and integration workflows in a clear, customer-centric way * Evaluate customer challenges and propose tailored solutions using our REST API and MCP * Deliver demos, proof-of-concept support, and API walkthroughs * Solid understanding of APIs, REST, JSON, authentication (OAuth, API keys), and data workflows * Comfortable debugging basic integration issues (e.g., API calls, response errors, authentication p
Knowledge of HSE, Safety and Global Plant Layout practices (i.e., PIP, API, GAP, etc.)
Knowledge of HSE, Safety and Global Plant Layout practices (i.e., PIP, API, GAP, etc.)
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All relevant API/ISO and Codes for Equipment within packages in both FEED and EPC environments.
All relevant API/ISO and Codes for Equipment within packages in both FEED and EPC environments.
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Starling is the UKs first and leading digital bank on a mission to fix banking! Our vision is fast technology, fair service, and honest values. We built a new kind of bank because we knew technology had the power to help people save, spend and manage their money in a new and transformative way. Were a fully licensed UK bank with the culture and spirit of a fast-moving, disruptive tech company. Were a bank, but better: fairer, easier to use and designed to demystify money for everyone. We employ more than 3,000 people across our London, Southampton, Cardiff and Manchester offices. Our technologists are at the very heart of Starling and enjoy working in a fast-paced environment that is all about building things, creating new stuff, and disruptive technology that keeps us on the cutting edge of fintech.
Starling is the UKs first and leading digital bank on a mission to fix banking! Our vision is fast technology, fair service, and honest values. We built a new kind of bank because we knew technology had the power to help people save, spend and manage their money in a new and transformative way. Were a fully licensed UK bank with the culture and spirit of a fast-moving, disruptive tech company. Were a bank, but better: fairer, easier to use and designed to demystify money for everyone. We employ more than 3,000 people across our London, Southampton, Cardiff and Manchester offices. Our technologists are at the very heart of Starling and enjoy working in a fast-paced environment that is all about building things, creating new stuff, and disruptive technology that keeps us on the cutting edge of fintech.
Familiarity with a GPGPU API such as SYCL, OpenCL or CUDA.
Familiarity with a GPGPU API such as SYCL, OpenCL or CUDA.
ClickUp is revolutionizing the way the world works. As the only all-in-one productivity platform built from day one for true convergence, ClickUp unifies tasks, docs, chat, calendar, enterprise search, and moresupercharged by context-driven AI. While others scramble to bundle fragmented tools or bolt on AI, we anticipated this future and made it our foundation from the start. Headquartered in San Diego with a rapidly expanding global footprint, we empower over three million teams to break free from silos and reclaim their timesaving at least one day every week. Join ClickUp, one of the fastest-growing SaaS companies on the planet, and help millions of users transform the way they work. We're not just building software. We're shaping the future of work. Come join us in building the futuretogether.
ClickUp is revolutionizing the way the world works. As the only all-in-one productivity platform built from day one for true convergence, ClickUp unifies tasks, docs, chat, calendar, enterprise search, and moresupercharged by context-driven AI. While others scramble to bundle fragmented tools or bolt on AI, we anticipated this future and made it our foundation from the start. Headquartered in San Diego with a rapidly expanding global footprint, we empower over three million teams to break free from silos and reclaim their timesaving at least one day every week. Join ClickUp, one of the fastest-growing SaaS companies on the planet, and help millions of users transform the way they work. We're not just building software. We're shaping the future of work. Come join us in building the futuretogether.
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Policy Expert - Quality Engineer II - Are you ready to transform the insurance industry? Policy Expert is a forward-thinking business that loves to get things done. Leveraging proprietary technology and smart data, we offer reliable products and a wow customer experience. Having achieved rapid growth since being founded in 2011, we've won over 1.5 million customers in Home, Motor and Pet insurance and have been ranked the UK's No.1-rated home insurer by Review Centre since 2013. Hear from our team about what it's like working at Policy Expert ? About The Quality Engineering Chapter - While you'll be embedded in the Customer Management squad, you will be a key member of our strong and supportive Quality Engineering chapter. We are a close-knit community of engineers who specialise in quality, acting as a force multiplier for the entire engineering organisation.
Policy Expert - Quality Engineer II - Are you ready to transform the insurance industry? Policy Expert is a forward-thinking business that loves to get things done. Leveraging proprietary technology and smart data, we offer reliable products and a wow customer experience. Having achieved rapid growth since being founded in 2011, we've won over 1.5 million customers in Home, Motor and Pet insurance and have been ranked the UK's No.1-rated home insurer by Review Centre since 2013. Hear from our team about what it's like working at Policy Expert ? About The Quality Engineering Chapter - While you'll be embedded in the Customer Management squad, you will be a key member of our strong and supportive Quality Engineering chapter. We are a close-knit community of engineers who specialise in quality, acting as a force multiplier for the entire engineering organisation.
Policy Expert - Senior Quality Engineer II - Are you ready to transform the insurance industry? Policy Expert is a forward-thinking business that loves to get things done. Leveraging proprietary technology and smart data, we offer reliable products and a wow customer experience. Having achieved rapid growth since being founded in 2011, we've won over 1.5 million customers in Home, Motor and Pet insurance and have been ranked the UK's No.1-rated home insurer by Review Centre since 2013. Hear from our team about what it's like working at Policy Expert ? About the Quality Engineering Chapter - While you'll be embedded in the Home Tribe, you will be a key member of our strong and supportive Quality Engineering chapter. We are a close-knit group of quality specialists, acting as a force multiplier for the entire engineering organisation.
Policy Expert - Senior Quality Engineer II - Are you ready to transform the insurance industry? Policy Expert is a forward-thinking business that loves to get things done. Leveraging proprietary technology and smart data, we offer reliable products and a wow customer experience. Having achieved rapid growth since being founded in 2011, we've won over 1.5 million customers in Home, Motor and Pet insurance and have been ranked the UK's No.1-rated home insurer by Review Centre since 2013. Hear from our team about what it's like working at Policy Expert ? About the Quality Engineering Chapter - While you'll be embedded in the Home Tribe, you will be a key member of our strong and supportive Quality Engineering chapter. We are a close-knit group of quality specialists, acting as a force multiplier for the entire engineering organisation.
Native Engineer, Platform Services - Location: London, UK / Hybrid Remote - We have an office in London and this position can either be based in the office or hybrid remote, with the expectation of attending the office on Wednesdays and Thursdays (subject to your existing legal right to work in the jurisdiction). About HERE - Everything works right here. In a world of endless desktop applications, data sources, and services, HERE (formerly OpenFin) provides an enterprise browser that brings an intuitive and unified app experience to end-user desktops, supercharging productivity, and lowering operational risk. Through its advanced browser, search, and actionable notification capabilities, seamless and powerful workflows are enabled across all applications. Today, HERE software is used by 90% of leading global financial institutions, the US Intelligence Community, and C
Native Engineer, Platform Services - Location: London, UK / Hybrid Remote - We have an office in London and this position can either be based in the office or hybrid remote, with the expectation of attending the office on Wednesdays and Thursdays (subject to your existing legal right to work in the jurisdiction). About HERE - Everything works right here. In a world of endless desktop applications, data sources, and services, HERE (formerly OpenFin) provides an enterprise browser that brings an intuitive and unified app experience to end-user desktops, supercharging productivity, and lowering operational risk. Through its advanced browser, search, and actionable notification capabilities, seamless and powerful workflows are enabled across all applications. Today, HERE software is used by 90% of leading global financial institutions, the US Intelligence Community, and C
About the Opportunity - Our Solution Engineers are close partners of our sales team and own key components of the sales process including infrastructural/architectural discovery, collaborative solution design, and technical validation. Solution Engineers may travel up to 50% of the time and will have the opportunity to work with teams around the world, from visionary brands to innovative digital agencies. What to expect? * Work directly with our Enterprise Account Executives to support EMEA customers * Support our sales team in helping prospects understand what's possible with Contentful and how it compares to older legacy technologies * Understand prospects' project requirements, help prospects validate these requirements against our platform, identify and mitigate technical and business risks * Create product demonstrations and assist with technical evaluations to .
About the Opportunity - Our Solution Engineers are close partners of our sales team and own key components of the sales process including infrastructural/architectural discovery, collaborative solution design, and technical validation. Solution Engineers may travel up to 50% of the time and will have the opportunity to work with teams around the world, from visionary brands to innovative digital agencies. What to expect? * Work directly with our Enterprise Account Executives to support EMEA customers * Support our sales team in helping prospects understand what's possible with Contentful and how it compares to older legacy technologies * Understand prospects' project requirements, help prospects validate these requirements against our platform, identify and mitigate technical and business risks * Create product demonstrations and assist with technical evaluations to .
We want you to #JOINTHEREBELLION! For 30 years weve been independently developing and publishing incredible video games at our multiple studios founded by Jason & Chris Kingsley, but Rebellion is more than just games. We have our own film studio, we create board games, publish books, and through 2000AD, publish comics and graphic novels such as the amazing Judge Dredd. We are seeking an experienced and highly skilled back-end Senior Online Developer to join our tech team, to help build and support internal and external web APIs to support our game engine team. The successful candidate will join a small team and user their specialist JavaScript knowledge to be involved in the entire software development lifecycle, from requirements gathering and system design to implementation, testing, deployment, and maintenance.
We want you to #JOINTHEREBELLION! For 30 years weve been independently developing and publishing incredible video games at our multiple studios founded by Jason & Chris Kingsley, but Rebellion is more than just games. We have our own film studio, we create board games, publish books, and through 2000AD, publish comics and graphic novels such as the amazing Judge Dredd. We are seeking an experienced and highly skilled back-end Senior Online Developer to join our tech team, to help build and support internal and external web APIs to support our game engine team. The successful candidate will join a small team and user their specialist JavaScript knowledge to be involved in the entire software development lifecycle, from requirements gathering and system design to implementation, testing, deployment, and maintenance.
Experience of RESTful API Design and authentication with OAUTH
Experience of RESTful API Design and authentication with OAUTH
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.
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.
4 exact matches jobs are outside your preferred location
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.
Mentor SREs in developing orchestration pipelines, IaC modules, and secure API integrations.
Mentor SREs in developing orchestration pipelines, IaC modules, and secure API integrations.
Ability to triage API requests using Postman, troubleshoot issues, and communicate findings effectively * Confer with prospective customers and engineers to determine system integrations and requirements (ecommerce, PIM, CMS, API integrations, etc.) and map them to the proper Constructor solutions.
Ability to triage API requests using Postman, troubleshoot issues, and communicate findings effectively * Confer with prospective customers and engineers to determine system integrations and requirements (ecommerce, PIM, CMS, API integrations, etc.) and map them to the proper Constructor solutions.
New GraphQL API backends.
New GraphQL API backends.
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This is an opportunity to join at SVP level as a hands-on Technical Lead, steering engineering standards, cloud strategy, and distributed system design for one of the most ambitious financial technology projects in the world. * Lead technical direction of a next-gen cross-asset risk platform - We are partnering with a global financial institution on a Greenfield platform build that will redefine large-scale risk and trading technology. Why apply? * Greenfield engineering - modern tech stack: Java, Spring Boot, Kubernetes (EKS & GKE), Kafka, Apache Ignite, MongoDB, RabbitMQ, Solace * Massive scale - billions of risk calculations per day across trading desks globally * Impact & visibility - shape the technical direction while mentoring global engineering teams * Hybrid working - Moorgate Innovation Lab, 2 days per week onsite * Compensa
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We are looking for a motivated Performance engineer to influence the roadmap of our communication libraries. This is an outstanding opportunity for someone with HPC and performance background to advance the state of the art in this space. * M.S. (or equivalent experience) or PHD in Computer Science, or related field with relevant performance engineering and HPC experience * Experience conducting performance benchmarking and triage on large scale HPC clusters - NVIDIA is leading the way in groundbreaking developments in Artificial Intelligence, High Performance Computing and Visualization. Our GPU communication libraries are crucial for scaling Deep Learning and HPC applications! The DL and HPC applications of today have a huge compute demand and run on scales which go up to tens of thousands of GPUs. Communication performance between the GPUs has a direct impact on th
We are looking for a motivated Performance engineer to influence the roadmap of our communication libraries. This is an outstanding opportunity for someone with HPC and performance background to advance the state of the art in this space. * M.S. (or equivalent experience) or PHD in Computer Science, or related field with relevant performance engineering and HPC experience * Experience conducting performance benchmarking and triage on large scale HPC clusters - NVIDIA is leading the way in groundbreaking developments in Artificial Intelligence, High Performance Computing and Visualization. Our GPU communication libraries are crucial for scaling Deep Learning and HPC applications! The DL and HPC applications of today have a huge compute demand and run on scales which go up to tens of thousands of GPUs. Communication performance between the GPUs has a direct impact on th
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We are looking for a Principal Engineer to join the SAS PPPT Leadership team. * Leading Multiple Teams of Engineers on complex projects - 12 months - Remote - Active SC & NPPV3 clearance required - Inside IR35 - Umbrella only - Job Description * Lead and mentor multiple engineering teams, fostering a culture of collaboration, innovation, and continuous improvement. * Develop engineering capability through coaching, recruitment, and career development aligned with DDaT frameworks. * Excellent development skills, with a depth of experience including C#, Java (Spring Boot, JPA/Hibernate), REST API's, observability and monitoring, queue technologies and security. * Detailed knowledge of best practices such as SOLID principles * Experience of building new and evolving microservices with emphasis on high availability and data integrity. * H
We are looking for a Principal Engineer to join the SAS PPPT Leadership team. * Leading Multiple Teams of Engineers on complex projects - 12 months - Remote - Active SC & NPPV3 clearance required - Inside IR35 - Umbrella only - Job Description * Lead and mentor multiple engineering teams, fostering a culture of collaboration, innovation, and continuous improvement. * Develop engineering capability through coaching, recruitment, and career development aligned with DDaT frameworks. * Excellent development skills, with a depth of experience including C#, Java (Spring Boot, JPA/Hibernate), REST API's, observability and monitoring, queue technologies and security. * Detailed knowledge of best practices such as SOLID principles * Experience of building new and evolving microservices with emphasis on high availability and data integrity. * H
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