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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.
Were Nominet a world-leading domain name registry operating at the heart of the UK internet. While we're best known for running .UK domains, our DNS expertise also underpins critical internet infrastructure that government services, including the NHS, rely on. As a public benefit company, our work has a positive impact on society. Weve donated millions to projects that use technology to improve peoples lives and have committed to delivering £60m worth of support over the next three years. As the Head of Registry Engineering at Nominet, you will lead a core technology engineering team to deliver industry leading Registry Systems for the internet. This is a critical role with responsibility for engineering Nominets main line of business. You will manage a highly skilled team who are experts in Registry Systems and full stack application development in Java.
Were Nominet a world-leading domain name registry operating at the heart of the UK internet. While we're best known for running .UK domains, our DNS expertise also underpins critical internet infrastructure that government services, including the NHS, rely on. As a public benefit company, our work has a positive impact on society. Weve donated millions to projects that use technology to improve peoples lives and have committed to delivering £60m worth of support over the next three years. As the Head of Registry Engineering at Nominet, you will lead a core technology engineering team to deliver industry leading Registry Systems for the internet. This is a critical role with responsibility for engineering Nominets main line of business. You will manage a highly skilled team who are experts in Registry Systems and full stack application development in Java.
Proficient in API design, development & production operation
Proficient in API design, development & production operation
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Practical experience of health and safety activities within an API manufacturing, pharmaceutical, chemical production setting
Practical experience of health and safety activities within an API manufacturing, pharmaceutical, chemical production setting
58 exact matches jobs are outside your preferred location
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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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Technical Agile Business Analyst/ Product Engineer
Technical Agile Business Analyst/ Product Engineer
Hays
London, EC3A 4BF
£50000.0 - £60000.0 per annum + 50000-60000
Proficient with tools such as JIRA, Confluence, Figma and an API documentation platform
Proficient with tools such as JIRA, Confluence, Figma and an API documentation platform
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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
AI Solutions Engineer - London
AI Solutions Engineer - London
Transparent Technology
London, EC1A 4RN
£70000 - £140000 per annum + + bens + shares
Especially integration with the OpenAI API GPT, Gemini, LLama, Claude etc.
Especially integration with the OpenAI API GPT, Gemini, LLama, Claude etc.
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Strong understanding of REST API design and backend microservices architecture
Strong understanding of REST API design and backend microservices architecture
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Junior Presales Engineer, UK (German & English)
Junior Presales Engineer, UK (German & English)
Optibus Transportation Limited
The City, EC2M 5TQ
From £39,000 to £45,000 per annum Salary displays OTE, which is 80% &
Optibusis a unified software platform revolutionizing public transportation planning, scheduling, and operations in over 7,000 cities worldwide. Using AI, ML, and optimization algorithms, it empowers agencies to design more efficient, equitable, and sustainable transit networks, enhancing passenger access, reducing emissions, and improving driver conditions. With offices globally and a team of 350+ employees, Optibus fosters a collaborative culture centered on innovation, determination, and impact. As the first unicorn in public transportation technology, Optibus is driving the modernization of mass transit to make it the preferred choice for cities and passengers alike. We are looking for a Junior Presales Engineer to join our global Revenue team! Based in London, this individual will play a crucial role in supporting core presales engineering activities in showcasin
Optibusis a unified software platform revolutionizing public transportation planning, scheduling, and operations in over 7,000 cities worldwide. Using AI, ML, and optimization algorithms, it empowers agencies to design more efficient, equitable, and sustainable transit networks, enhancing passenger access, reducing emissions, and improving driver conditions. With offices globally and a team of 350+ employees, Optibus fosters a collaborative culture centered on innovation, determination, and impact. As the first unicorn in public transportation technology, Optibus is driving the modernization of mass transit to make it the preferred choice for cities and passengers alike. We are looking for a Junior Presales Engineer to join our global Revenue team! Based in London, this individual will play a crucial role in supporting core presales engineering activities in showcasin
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They're after a Principal Infrastructure Engineer who’s as comfortable scripting against an API as they are deep-diving into Nutanix clusters. * Automate everything – Terraform, PowerShell, Python, REST APIs (Nutanix CLI/API experience a big plus)
They're after a Principal Infrastructure Engineer who’s as comfortable scripting against an API as they are deep-diving into Nutanix clusters. * Automate everything – Terraform, PowerShell, Python, REST APIs (Nutanix CLI/API experience a big plus)
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Lead Engineer
Lead Engineer
GH Engage Limited
The City, EC3
£55000 - £57500 per annum + 9% Pension, Medical, 25 days annual leave
Maintenance | Fit Outs | Permits to Work £55,000/annum + bonus | Exceptional client-side benefits | Client Side - 13 Month Fixed-Term-Contract - GH Engage are currently seeking an experienced Lead Engineer with a background in electrical / mechanical engineering maintenance for a role in the City of London. As a Lead Engineer, you will support the maintenance team and Fit-Out Supervisor in managing tenant and landlord fit-out projects, as well as performing maintenance, diagnostics, and fault finding on HVAC and electrical plant. * You will work closely with tenants, contractors, and consultants to monitor maintenance works on landlord plant and equipment, including electrical, mechanical, water treatment, and HVAC systems. * Review contractor and tenant risk assessments and method statements, monitor permits to work, and control access to plant areas.
Maintenance | Fit Outs | Permits to Work £55,000/annum + bonus | Exceptional client-side benefits | Client Side - 13 Month Fixed-Term-Contract - GH Engage are currently seeking an experienced Lead Engineer with a background in electrical / mechanical engineering maintenance for a role in the City of London. As a Lead Engineer, you will support the maintenance team and Fit-Out Supervisor in managing tenant and landlord fit-out projects, as well as performing maintenance, diagnostics, and fault finding on HVAC and electrical plant. * You will work closely with tenants, contractors, and consultants to monitor maintenance works on landlord plant and equipment, including electrical, mechanical, water treatment, and HVAC systems. * Review contractor and tenant risk assessments and method statements, monitor permits to work, and control access to plant areas.
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Conduct functional, integration, end-to-end, and API testing. * Strong experience in integration, E2E, functional, and API testing.
Conduct functional, integration, end-to-end, and API testing. * Strong experience in integration, E2E, functional, and API testing.
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Strong integration, E2E and API testing experience
Strong integration, E2E and API testing experience
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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
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Staff Back End Engineer
Staff Back End Engineer
John Lewis & Partners
SW1V, South West London, SW1V 2QQ
From £75,000 to £92,000 per annum
REST API development and/or consumption.
REST API development and/or consumption.
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Looking for a new challenge? Take a look at our current vacancies. If you see a vacancy that is right for you, we encourage you to apply! Job Title: Specialist Data Engineer - Full-time role - Working Hours: Full-time 35 hours per week - Salary: £64,575 - Location: London Docklands (Hybrid). Our permanent hybrid policy sees us all working at least four days across a fortnight in the office. The Financial Ombudsman Service has been resolving customer complaints since 2001. Our service is free for consumers to use and over 1 million people contact us every year. The last few years have seen the Financial Ombudsman Service embark on an organisation-wide transformation journey. With the customer at the heart of everything we do, we have already delivered significant improvements in the service we offer and 2026 will see us continue with our ambitious transformation agenda
Looking for a new challenge? Take a look at our current vacancies. If you see a vacancy that is right for you, we encourage you to apply! Job Title: Specialist Data Engineer - Full-time role - Working Hours: Full-time 35 hours per week - Salary: £64,575 - Location: London Docklands (Hybrid). Our permanent hybrid policy sees us all working at least four days across a fortnight in the office. The Financial Ombudsman Service has been resolving customer complaints since 2001. Our service is free for consumers to use and over 1 million people contact us every year. The last few years have seen the Financial Ombudsman Service embark on an organisation-wide transformation journey. With the customer at the heart of everything we do, we have already delivered significant improvements in the service we offer and 2026 will see us continue with our ambitious transformation agenda
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.
Node.js for services and API development
Node.js for services and API development
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.
Travel Technology Operations Manager, Supply MarketPlace (SMP)
Travel Technology Operations Manager, Supply MarketPlace (SMP)
Gbt Travel Services Uk Ltd
London
Competitive
GDS experience is a must and non-GDS API experienced and knowledge a plus.
GDS experience is a must and non-GDS API experienced and knowledge a plus.