101 to 125 of 379 JavaScript Jobs in London

skills : Comfortable building scalable servers, APIs, and databases. Computer science fundamentals : Solid grasp of data structures, algorithms, system design, and performance optimization. TypeScript/JavaScript or equivalent : Production experience with modern backend languages and frameworks. Database and infrastructure knowledge : Experience designing schemas, optimizing queries, and working with modern databases ...

evolving well-structured RESTful APIs Designing and improving data models across relational (e.g. PostgreSQL) and NoSQL databases Working across the stack where needed, including JavaScript, modern HTML/CSS, and utility frameworks such as Tailwind Contributing to cloud-based infrastructure (e.g. Google Cloud), deployment pipelines and DevOps practices Debugging live ...

innovation, AI adoption, or Copilot enablement programmes Exposure to Azure AI Foundry, AI Builder, or other Microsoft AI tooling Software development experience (for example JavaScript, TypeScript, C#, Python) or strong pro code extensibility skills within Power Platform Familiarity with Dynamics 365 Customer Engagement and/or Finance and Supply Chain ...

design, computer science, information sciences, psychology, or human-computer interaction is preferred. Hands-on experience with modern front-end technologies (e.g., HTML/CSS, JavaScript/TypeScript, React) and evolving design systems. Experience building AI and agentic experiences, and you are already leveraging AI to speed up and augment your ...

that's where you create value - Feed customer signal back into product, closing the loop on the roadmap Qualifications - You're proficient in JavaScript/TypeScript and can write clean code and prototype customer-facing applications quickly. - You've got hands-on React and Node.js experience across frontend and backend. ...

tests such as NUnit, Mocha, Jasmine, Jest or Selenium; and DevOps, CI/CD, and configuration management tools.* ### JavaScript:* Programming/development experience focused on JavaScript concepts and design patterns with working knowledge of JavaScript development frameworks such as React, Angular, Express, or Node.js; design and development ...

robust full-stack solutions using TypeScript, AWS, and GraphQL. The ideal candidate should have proven experience in software engineering roles with deep expertise in JavaScript, Node.js, and related technologies. This role involves taking full ownership of the code, ensuring high-quality delivery from frontend to backend and infrastructure. #J ...

role involves developing cutting-edge cloud-native microservices applications and working in a collaborative, agile environment. The ideal candidate will have advanced experience in JavaScript and TypeScript, along with a proficiency in React. Responsibilities include collaborating with teams to deliver new features, maintaining code quality, and mentoring junior developers. #J ...

fast across mobile and backend. This role will be hands-on, building and owning features end to end. Essential Skills & Experience Strong TypeScript/JavaScript Experience in fast-paced, iterative teams 4+ years in your core area Confident delivering end-to-end features Comfortable jumping across frontend + backend React ...

implement well-tested new product features. This role isn't just about coding, its about influencing product and business impact Desired Skills & Experience Fullstack JavaScript/TypeScript/Node.js software engineering experience SASS, DynamoDB, AWS Lambda, and Serverless Framework are all beneficial eCommerce/Shopify experience is a bonus ...

play a key role in shaping the architecture of a complex, high-impact product. You’ll thrive here if you enjoy: Building with JavaScript/TypeScript and Node.js Owning meaningful technical problems end-to-end Improving large-scale, data-heavy systems Working closely with users and seeing your impact quickly ...

integrated systems in a regulated environ ment Requirem ents:10+ years’ experience in QA/Test Autom ationStrong hands-on experience with Java/JavaScript (Spring Boot environm ents)Expertise in automation tools (Selenium, RestAssured, etc.)Experience with BDD/TDD (Cucumber, JUnit, Te stNG)Proven background in trading platforms ...

role in shaping the architecture of a complex, high-impact product. Take the next step in your career today! Responsibilities Building with JavaScript/TypeScript and Node.js Owning meaningful technical problems end-to-end Improving large-scale, data-heavy systems Working closely with users and seeing your impact quickly Refactoring ...

based architecture They work with a variety of technologies. You’ll ideally have experience with some of the following, or be open to learning: JavaScript: React, Node, Jest, Cypress Ruby (non-Rails environment) – nice to have AWS: EC2, ECS, Lambda, S3, SQS Databases: MongoDB & PostgreSQL They are looking for someone ...

Stay up-to-date with emerging front-end technologies What we're looking for: - 3+ years of front-end development experience - Strong proficiency in JavaScript, HTML, CSS - Experience with modern front-end frameworks (React, Vue, or Angular) - Knowledge of RESTful APIs and async request handling - Familiarity with version control tools ...

Solid engineering fundamentals and a problem solving mindset Experience working on backend or backend leaning full stack systems Exposure to frontend technologies such as JavaScript frameworks is beneficial A background in computer science or a related STEM discipline is preferred Curiosity, continuous learning, and the ability to articulate what ...

scanning, tools, approaches, vulnerability patching, and vendor management for security. Strong experience in penetration testing and hands-on coding in at least one of: JavaScript, Java, Python. Hands-on configuration, deployment and operation of ForgeRock COTS-based IAM solutions (e.g., PingGateway, PingAM, PingIDM, PingDS) with embedded security gates, HTTP header ...

design Write well-tested, maintainable code with a strong focus on correctness and usability Core Technical Requirements Strong professional experience with React and modern JavaScript/TypeScript Deep understanding of front-end architecture, state management, and component design Experience handling large, dynamic data sets in the browser Strong grasp ...

more. Must have for this role: Proficient in Rust development Experience with property-based testing or fuzzing Comfortable with web technology (browsers, HTTP, HTML, Javascript, CSS) Experience that would be a plus: Chrome Devtools Protocol, Playwright, Cypress, or Selenium Formal specification languages (e.g. TLA+ or some LTL) Implementing parsers, type ...

Power Platform implementations Hands-on capability across Power Apps, Power Automate and Dataverse Solid understanding of Azure integration, APIs and custom extensions (.NET/JavaScript) Experience working in Agile delivery teams with DevOps practices Comfortable operating in a large, regulated or corporate environment Confident communicator able to translate complex technical ...

building full-stack applications within startup or scale-up environments Strong backend development capabilities using Python based web frameworks Frontend development experience with modern JavaScript frameworks, ideally React or similar Comfortable shipping production software in fast-moving, low-process teams Experience working across cloud infrastructure and deployment environments is highly ...

escalations, and help the wider team remain accountable to delivery dates. Ideal Experience: Shopify/Liquid Shopify APIs (Cart, Section Rendering, Storefront & Admin API) Javascript/Web Components Tailwind (or familiarity with CSS frameworks) HTML (with best practices and accessibility in mind) Webpack/Vite REST/GraphQL APIs Shopify ...

back-end systems using modern web technologies such as React, Node.js, and TypeScript. What You Will Bring: - Strong proficiency in HTML, CSS, and JavaScript, with a solid grasp of best practices. - Proven experience with Node.js and modern frameworks like React and TypeScript. - Familiarity with WebGL and libraries such as three.js ...

escalations, and help the wider team remain accountable to delivery dates. Ideal Experience: Shopify/Liquid Shopify APIs (Cart, Section Rendering, Storefront & Admin API) Javascript/Web Components Tailwind (or familiarity with CSS frameworks) HTML (with best practices and accessibility in mind) Webpack/Vite REST/GraphQL APIs Shopify ...

Strong understanding of Microsoft Power Platform tools and their capabilities. Proficiency in Power Apps, Power Automate, Power BI, and Dataverse. Proven M365, C# and JavaScript experience Excellent problem-solving skills and attention to detail. Ability to work independently and collaboratively in a fast-paced environment. Strong communication skills to effectively ...