401 to 425 of 1,117 Node.js Jobs in the UK

deterministic, LLM-powered systems. Build and maintain automated test suites covering unit, integration, API, and end-to-end scenarios across our TypeScript/Node.js/React/Python stack. Develop evaluation frameworks for agent behaviour, testing reasoning quality, tool use, memory, and multi-step interaction flows. Test and validate ...

deterministic, LLM-powered systems. ● Build and maintain automated test suites covering unit, integration, API, and end-to-end scenarios across our TypeScript/Node.js/React/Python stack. ● Develop evaluation frameworks for agent behaviour, testing reasoning quality, tool use, memory, and multi-step interaction flows. ● Test and validate ...

comfortable designing and implementing services, REST/WebSocket APIs and their data models. Solid working knowledge of the frontend stack: JavaScript and TypeScript, the Node.js/npm ecosystem, and a modern framework — React.js ideally, though experience with a comparable one is fine (please feel free to share any available examples ...

/CD tooling - for example GitHub Actions, AWS CodePipeline/CodeBuild Observability - CloudWatch, centralised logging and alerting Event‐driven and serverless architecture patterns; Node.js application runtime Key Requirements The following experience is essential. Candidates who demonstrate strong practical ability across these areas will be prioritised regardless of formal qualifications. Foundational ...

interview/test 5th stage - Meet with our VP of Engineering Additional information Doxy.me tech stack Frontend: React, TypeScript, Playwright, WebRTC, Next.js, Nx.dev Backend: Nodejs, TypeScript, Jest, NestJS, Nx.dev Cloud: AWS 3rd party: Vonage, Segment, Twilio, Stripe Our team: technologists, academics, researchers, and innovators from all over the world. English ...

container scanning, pen testing), 1Password, GitHub (org‐level enforcement, Advanced Security) Compliance & ops: Drata, Iru, EasyLlama Observability & IR: Datadog, Sentry, Logfire, Incident.io Languages: TypeScript (Node.js), Python Benefits Meaningful share options (EMI) - share in the company’s success as we grow 25 days holiday + 1 additional day per year ...

/CD tooling — for example GitHub Actions, AWS CodePipeline/CodeBuild Observability — CloudWatch, centralised logging and alerting Event-driven and serverless architecture patterns; Node.js application runtime Key Requirements The following experience is essential. Candidates who demonstrate strong practical ability across these areas will be prioritised regardless of formal qualifications. Foundational ...

business. Gaining exposure to Microsoft Azure and Apige. Qualifications A minimum of 2 years hands on Java development experience. Knowledge of JavaScript and NodeJS is highly desirable. You will have worked in an Agile environment and be comfortable with fast-paced Sprint Cycles. Previous experience building ...

infrastructure Nice to haves: Experience working in regulated or high‐trust environments Knowledge of zero‐downtime deployment patterns and rollback strategies Exposure to Next.js, Node.js, or React‐based applications from an ops perspective Understanding of secrets management and zero‐trust networking Our Benefits Join a scaling fintech building the next ...

help establish engineering best practices Work directly with customers to understand their needs and rapidly iterate on solutions Technical Must-Haves: Strong experience with Node.js and TypeScript for backend development Strong Python experience for AI system development Proficiency with PostgreSQL for database design and optimisation Hands-on experience with ...

functional programming, with the ability and willingness to use and adopt new technologies. We use tools such as Phoenix, Elixir, Python, Erlang, Javascript, Node.js and more. Strong ability to work in a fast-paced, collaborative, and innovative team environment. Exceptional problem-solving skills, with a track record of tackling challenging ...

functional programming, with the ability and willingness to use and adopt new technologies. We use tools such as Phoenix, Elixir, Python, Erlang, Javascript, Node.js and more. Strong ability to work in a fast-paced, collaborative, and innovative team environment. Exceptional problem-solving skills, with a track record of tackling challenging ...

business. Gaining exposure to Microsoft Azure and Apige. Qualifications A minimum of 2 years hands on Java development experience. Knowledge of JavaScript and NodeJS is highly desirable. You will have worked in an Agile environment and be comfortable with fast-paced Sprint Cycles. Previous experience building APIs ...

certifications (Associate and Professional level) Security experience A keen interest in technology Have previously been hands on At least one software development language (Python, NodeJS, Java, .Net etc.) CDK, Typescript, Terraform An interest in mentoring and developing others Additional Information Why Version 1? At Version 1, we believe in providing ...

certifications (Associate and Professional level) Security experience A keen interest in technology Have previously been hands on At least one software development language (Python, NodeJS, Java, .Net etc.) CDK, Typescript, Terraform An interest in mentoring and developing others Additional Information Why Version 1? At Version 1, we believe in providing ...

comfortable with evolving scope as Ledgy expands into new forms of compensation Our Tech Stack* Language: TypeScript Frontend: React, Tailwind CSS, tRPC Backend: tRPC, Node.js, MongoDB, Temporal Infrastructure: Docker, GitHub Actions, GCP, Terraform Cloud, Kubernetes *We don’t expect proficiency in this specific stack What Your Journey Could Look Like ...

TypeScript Experience with React Experience with Multi-page applications (MPAs, we use the Remix framework) Experience with CSS frameworks (we use tailwindcss) Experience with Node.js (we use the Nest.js framework) Experience with Postgres databases Experience with AWS (the Product team manages infrastructure & deployments) Experience with dependency injection Experience using generative ...

software development (having previously been a Head of Technology or Staff Software Engineer), specifically leading teams across front-end, back-end and mobile (ideally Node, React and for mobile Kotlin and Swift) Extensive experience driving extreme programming practices within an engineering team, instilling principles such as TDD, continuous delivery ...

SaaS spacePrevious software development experience in one or more of the following areas: Front End: JavaScript, TypeScript, React, Back-End: Java, Ruby, Go, Node, Python, Swift/Objective-CExperience with data formats and data transformationGreat oral and written communication skillsSuperior organisational skills working with multiple customers and have the ability ...

software development (having previously been a Head of Technology or Staff Software Engineer), specifically leading teams across front-end, back-end and mobile (ideally Node, React and for mobile Kotlin and Swift) Extensive experience driving extreme programming practices within an engineering team, instilling principles such as TDD, continuous delivery ...

strong backend and platform focus to join our team on a contract basis. The ideal candidate will have extensive experience building backend services using Node.js and TypeScript , with a strong understanding of modern software engineering practices, distributed systems and API design. While this is a full stack role, the primary … generated code, and contributing to technical discussions around architecture and system design. Responsibilities Backend Development Design, develop and maintain scalable backend services using Node.js, TypeScript and modern backend frameworks such as Express.js or similar. Design and implement RESTful APIs and service integrations. Develop maintainable, well-tested and performant code following ...

wireframes and prototypes into polished, user-centric applications. Contribute to product discovery, user experience discussions and interface improvements. Develop backend APIs and services using Node.js and TypeScript . Design secure integrations with third-party platforms and enterprise systems. Build and consume RESTful and GraphQL APIs. Implement authentication and identity solutions … encouraged. You'll ideally have: 7+ years' commercial software engineering experience. Strong experience building products from scratch. Excellent knowledge of React , TypeScript and Node.js . Experience collaborating with UX/UI Designers and implementing pixel-perfect, responsive interfaces. A strong appreciation of user experience (UX) and user interface (UI) principles ...

Job responsibilitiesDesign, develop, and implement cloud-based applications and services. Collaborate with architects and engineers to ensure design solutions are aligned with business goals. Optimize applications for performance, scalability, and security. Identify opportunities to eliminate ...

Developer Essex | Hybrid | Permanent Growing organisation seeking a Junior Developer to join a small technology team. Key requirements: Python and SQL JavaScript/Node.js REST APIs and JSON Git/version control Strong problem-solving skills Good communication and willingness to learn Exposure to AI, automation, cloud platforms or Microsoft ...

Developer Essex Hybrid Permanent Growing organisation seeking a Junior Developer to join a small technology team. Key requirements: Python and SQL JavaScript/Node.js REST APIs and JSON Git/version control Strong problem-solving skills Good communication and willingness to learn Exposure to AI, automation, cloud platforms or Microsoft ...