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Experience with infrastructure-as-code, production-grade Linux environments, and API services (Flask/Gunicorn).
Experience with infrastructure-as-code, production-grade Linux environments, and API services (Flask/Gunicorn).
FEATURED
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Lead React Native Engineer / Engineering manager
Lead React Native Engineer / Engineering manager
Sanderson Recruitment
City of London (EC1), EC1
£600 - £700 per day + Outside IR35
Strong API/integration experience: REST / GraphQL, auth flows, contract design and resilience patterns
Strong API/integration experience: REST / GraphQL, auth flows, contract design and resilience patterns
FEATURED
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Our client is seeking a contract Threat Detection Engineer to support the ongoing delivery of detection engineering activities within a busy SOC environment. This role is centred on hands-on engineering and execution, ensuring detection content, automations, and integrations are delivered effectively and aligned to operational priorities. Working closely with threat hunting and SOC teams, you will translate detection requirements into practical outcomes, contributing directly to sprint-based delivery and continuous service improvement. This is a highly technical role suited to someone who enjoys building, tuning, and optimising detection capabilities across modern security platforms. Key Responsibilities * Develop and deliver detection content in line with sprint priorities and operational requirements
Our client is seeking a contract Threat Detection Engineer to support the ongoing delivery of detection engineering activities within a busy SOC environment. This role is centred on hands-on engineering and execution, ensuring detection content, automations, and integrations are delivered effectively and aligned to operational priorities. Working closely with threat hunting and SOC teams, you will translate detection requirements into practical outcomes, contributing directly to sprint-based delivery and continuous service improvement. This is a highly technical role suited to someone who enjoys building, tuning, and optimising detection capabilities across modern security platforms. Key Responsibilities * Develop and deliver detection content in line with sprint priorities and operational requirements
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Head of Quality Engineering
Head of Quality Engineering
Infoplus Technologies UK Ltd
City of London (EC3M)
From £650 to £700 per day
API Automation (REST Assured, Karate, Postman)
API Automation (REST Assured, Karate, Postman)
With over 300 million downloads and processing 5+ billion images annually, we serve both individual creators and major enterprises like Amazon, DoorDash, and Decathlon through our B2C app and B2B API solutions. * Role: Senior API Engineer (Fast API/Python) Our Image Editing API enables anyone to easily create high-quality images with a variety of AI-powered features including background removal, AI shadows, AI backgrounds * You will collaborate with your team to prioritize and implement the most impactful features for the API. * You will get fast feedback from API users and will iterate quickly (we update the API several times a week). You will follow the usage of the API and make decisions based on that. * The API is growing fast and sits at the intersection of developer experience and state-of-the-art AI image models.
With over 300 million downloads and processing 5+ billion images annually, we serve both individual creators and major enterprises like Amazon, DoorDash, and Decathlon through our B2C app and B2B API solutions. * Role: Senior API Engineer (Fast API/Python) Our Image Editing API enables anyone to easily create high-quality images with a variety of AI-powered features including background removal, AI shadows, AI backgrounds * You will collaborate with your team to prioritize and implement the most impactful features for the API. * You will get fast feedback from API users and will iterate quickly (we update the API several times a week). You will follow the usage of the API and make decisions based on that. * The API is growing fast and sits at the intersection of developer experience and state-of-the-art AI image models.
Design and build Automation from scratch, Web Services/API , Performance & Accessibility test frameworks with DevOps CI/CD * API testing with Rest Assured or Postman
Design and build Automation from scratch, Web Services/API , Performance & Accessibility test frameworks with DevOps CI/CD * API testing with Rest Assured or Postman
Big banks and enterprises use our API, which means our search and validation engines need to be lightning-fast and bulletproof, even when our biggest partners turn on the tap.
Big banks and enterprises use our API, which means our search and validation engines need to be lightning-fast and bulletproof, even when our biggest partners turn on the tap.
Full-Stack Delivery: Deploy production-grade features across the platform, including real-time monitoring dashboards, policy enforcement engines, API integrations, and the agent orchestration layers. * Take-Home or Pair Session (23 hours): A practical exercise involving the construction of a small agentic workflow using Claudes API.
Full-Stack Delivery: Deploy production-grade features across the platform, including real-time monitoring dashboards, policy enforcement engines, API integrations, and the agent orchestration layers. * Take-Home or Pair Session (23 hours): A practical exercise involving the construction of a small agentic workflow using Claudes API.
Director, Knowledge Platform Engineering (relocate to Singapore)
Director, Knowledge Platform Engineering (relocate to Singapore)
Airwallex (UK) Limited
London
£300,000 - £330,000 a year
These include reusable analytical workflows, agent-callable tools, automated pipelines, API endpoints, and transformation primitives.
These include reusable analytical workflows, agent-callable tools, automated pipelines, API endpoints, and transformation primitives.
Synthesia is the worlds leading AI video platform for business, used by over 90% of the Fortune 100. Founded in 2017, the company is headquartered in London, with offices and teams across Europe and the US. As AI continues to shape the way we live and work, Synthesia develops products to enhance visual communication and enterprise skill development, helping people work better and stay at the center of successful organizations. Following our recent Series E funding round, where we raised $200 million, our valuation stands at $4 billion. Our total funding exceeds $530 million from premier investors including Accel, NVentures (Nvidia's VC arm), Kleiner Perkins, GV, and Evantic Capital, alongside the founders and operators of Stripe, Datadog, Miro, and Webflow. About the role - Lead the delivery of complex engineering projects in AI-powered video, avatar rendering, and ...
Synthesia is the worlds leading AI video platform for business, used by over 90% of the Fortune 100. Founded in 2017, the company is headquartered in London, with offices and teams across Europe and the US. As AI continues to shape the way we live and work, Synthesia develops products to enhance visual communication and enterprise skill development, helping people work better and stay at the center of successful organizations. Following our recent Series E funding round, where we raised $200 million, our valuation stands at $4 billion. Our total funding exceeds $530 million from premier investors including Accel, NVentures (Nvidia's VC arm), Kleiner Perkins, GV, and Evantic Capital, alongside the founders and operators of Stripe, Datadog, Miro, and Webflow. About the role - Lead the delivery of complex engineering projects in AI-powered video, avatar rendering, and ...
About Sano - Mission; what we do * accelerating the worlds transition to personalised medicine - Purpose; why we do it * to speed up development of life-saving treatments for those with limited options - Vision; where were going * become the worlds best source of patient-in-the-loop genomic and health data for precision medicine development - Curious to dive deeper? Read more about what we do here - Brief into to the role, who they are reporting to,... * Role - Product Engineer * Salary - 80,000 - 90,000 * Location - UK (remote only) * Identifying and prioritising the right problems to solve , focusing on meaningful customer outcomes and making smart trade-offs to maximise impact with limited time and resources. * Owning features end-to-end , from early discovery and technical input through design, implementation, testing, and release.
About Sano - Mission; what we do * accelerating the worlds transition to personalised medicine - Purpose; why we do it * to speed up development of life-saving treatments for those with limited options - Vision; where were going * become the worlds best source of patient-in-the-loop genomic and health data for precision medicine development - Curious to dive deeper? Read more about what we do here - Brief into to the role, who they are reporting to,... * Role - Product Engineer * Salary - 80,000 - 90,000 * Location - UK (remote only) * Identifying and prioritising the right problems to solve , focusing on meaningful customer outcomes and making smart trade-offs to maximise impact with limited time and resources. * Owning features end-to-end , from early discovery and technical input through design, implementation, testing, and release.
FX Digital is a specialist Connected TV agency, providing a wide range of services, including Product Strategy, Design, Engineering, and Test Automation. We partner with global streaming brands such as Discovery+, BritBox, ATP Media, ITV, and Dyn. As a Midweight Quality Engineer (QE) Analyst at FX Digital you will be passionate about delivering exceptional software quality through automation-led testing, supported by strong manual expertise. This role contributes to FX Digital's Testing as a Service (TAAS) offering, working closely with external client partners on Connected TV and Set Top Box projects. You will report into the Quality Engineering (QE) team, working closely with the Service Delivery Manager and wider engineering function. Independently defining robust test strategies, writing high-quality manual and automated test cases, and delivering comprehensive ...
FX Digital is a specialist Connected TV agency, providing a wide range of services, including Product Strategy, Design, Engineering, and Test Automation. We partner with global streaming brands such as Discovery+, BritBox, ATP Media, ITV, and Dyn. As a Midweight Quality Engineer (QE) Analyst at FX Digital you will be passionate about delivering exceptional software quality through automation-led testing, supported by strong manual expertise. This role contributes to FX Digital's Testing as a Service (TAAS) offering, working closely with external client partners on Connected TV and Set Top Box projects. You will report into the Quality Engineering (QE) team, working closely with the Service Delivery Manager and wider engineering function. Independently defining robust test strategies, writing high-quality manual and automated test cases, and delivering comprehensive ...
Job Title: Senior Engineer I - Location: London, Bristol or Edinburgh (Including Hybrid) Salary: £60,000 - £82,500 - Team: Developer Experience - Reporting To: Head of Engineering - Closing date: Friday 30th March 2026 - This role is based in the UK and requires an existing right to work in the UK. At this time, we are not able to offer visa sponsorship for this role. We are committed to building a diverse, global team and our sponsorship policy is evaluated on a role-by-role basis. We encourage you to keep an eye on our careers site to stay informed about future opportunities where we are able to offer visa sponsorship. Kaluza is the Energy Intelligence Platform, turning energy complexity into seamless coordination. We help energy companies overcome today's challenges while accelerating the shift to a clean, electrified future.
Job Title: Senior Engineer I - Location: London, Bristol or Edinburgh (Including Hybrid) Salary: £60,000 - £82,500 - Team: Developer Experience - Reporting To: Head of Engineering - Closing date: Friday 30th March 2026 - This role is based in the UK and requires an existing right to work in the UK. At this time, we are not able to offer visa sponsorship for this role. We are committed to building a diverse, global team and our sponsorship policy is evaluated on a role-by-role basis. We encourage you to keep an eye on our careers site to stay informed about future opportunities where we are able to offer visa sponsorship. Kaluza is the Energy Intelligence Platform, turning energy complexity into seamless coordination. We help energy companies overcome today's challenges while accelerating the shift to a clean, electrified future.
About Sano - Mission: what we do * Accelerating the worlds transition to personalised medicine - Purpose: why we do it * To speed up development of life-saving treatments for those with limited options - Vision: where were going * Become the worlds best source of patient-in-the-loop genomic and health data for precision medicine development - Curious to dive deeper? Read more about what we do here - Brief into to the role, who they are reporting to,... * Role - VP Data & Engineering * Salary -£120,000 to £150,000 depending on experience * Location - UK (remote only) As VP of Engineering & Data, youll be a hands-on, strategic leader for a small high-impact team. Youll own the technical direction and delivery for our engineering function, including front-end, backend, and platform disciplines. You will be instrumental in ensuring we can reliably ingest, curate, and serve high-quality ...
About Sano - Mission: what we do * Accelerating the worlds transition to personalised medicine - Purpose: why we do it * To speed up development of life-saving treatments for those with limited options - Vision: where were going * Become the worlds best source of patient-in-the-loop genomic and health data for precision medicine development - Curious to dive deeper? Read more about what we do here - Brief into to the role, who they are reporting to,... * Role - VP Data & Engineering * Salary -£120,000 to £150,000 depending on experience * Location - UK (remote only) As VP of Engineering & Data, youll be a hands-on, strategic leader for a small high-impact team. Youll own the technical direction and delivery for our engineering function, including front-end, backend, and platform disciplines. You will be instrumental in ensuring we can reliably ingest, curate, and serve high-quality ...
4 exact matches jobs are outside your preferred location
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Full Stack Engineer - Outisde IR35 up to £525 - Intial 4 month contract, high chance of extension - I am recruiting for multiple Full Stack Engineers to help our client build scalable, high-performance applications and contribute across both backend and frontend systems. This role involves working on modern production systems, building APIs and services, and collaborating with cross-functional teams to deliver reliable and user-focused products. Key Responsibilities * Build prototypes and evolve them into scalable, production-ready applications * Develop and maintain backend services and APIs in Node/Python * Contribute to frontend development, building responsive and intuitive user interfaces in React * Design and implement data workflows and system integrations * Work with cloud infrastructure and distributed systems
Full Stack Engineer - Outisde IR35 up to £525 - Intial 4 month contract, high chance of extension - I am recruiting for multiple Full Stack Engineers to help our client build scalable, high-performance applications and contribute across both backend and frontend systems. This role involves working on modern production systems, building APIs and services, and collaborating with cross-functional teams to deliver reliable and user-focused products. Key Responsibilities * Build prototypes and evolve them into scalable, production-ready applications * Develop and maintain backend services and APIs in Node/Python * Contribute to frontend development, building responsive and intuitive user interfaces in React * Design and implement data workflows and system integrations * Work with cloud infrastructure and distributed systems
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Senior GraphQL Engineer (Federation) TypeScript | Node.js | Kubernetes
Senior GraphQL Engineer (Federation) TypeScript | Node.js | Kubernetes
Staffworx Limited
UK
MARKET RATES, OUTSIDE IR35, hybrid, 2 days on site week
Own end-to-end GraphQL API delivery: schema design through to production integration, focusing on performance, maintainability, security, and scalability. * Strong commercial experience delivering Federated GraphQL in production (schema-first design, supergraph/subgraph architecture, resolvers, schema governance, and API evolution). * Testing experience with modern frameworks such as Vitest and Playwright (API + end-to-end).
Own end-to-end GraphQL API delivery: schema design through to production integration, focusing on performance, maintainability, security, and scalability. * Strong commercial experience delivering Federated GraphQL in production (schema-first design, supergraph/subgraph architecture, resolvers, schema governance, and API evolution). * Testing experience with modern frameworks such as Vitest and Playwright (API + end-to-end).
Experience designing, implementing, and maintaining automated test solutions across UI, API and integration layers.
Experience designing, implementing, and maintaining automated test solutions across UI, API and integration layers.
Clear integration pathway for transcript summarisation capabilities via API.
Clear integration pathway for transcript summarisation capabilities via API.
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