276 to 300 of 1,012 ECMAScript Jobs in London

having a lot of autonomy motivates you. You prioritise product and user experience. You are a collaborative Software Engineer with proven professional experience in Javascript/Typescript , React , and Node.JS , you possess a strong understanding of API design , consumption, and client-side logic. You are proficient in writing unit ...

pipelines, evaluation frameworks, workflows, and deployment. Technical Skills Solid programming proficiency (we are open to any experience but primary languages include: TypeScript and the JavaScript ecosystem, Python and Java). Hands‐on experience building and deploying AI agents or multi‐agent systems. Working familiarity with enterprise IT architecture, cloud platforms ...

tooling and measuring productivity outcomes.Understanding of AI governance, security and risk management considerations.Software EngineeringStrong software engineering background with significant experience building production systems.Experience with JavaScript, TypeScript, Node.js, Cloud platforms such as AWS and Git-based development workflows.Understanding of software architecture and system design.Experience working within CI/CD environments.Benefits Competitive ...

outcomes. Understanding of AI governance, security and risk management considerations. Software Engineering Strong software engineering background with significant experience building production systems. Experience with JavaScript, TypeScript, Node.js, Cloud platforms such as AWS and Git-based development workflows. Understanding of software architecture and system design. Experience working within CI/ ...

product teams.Comfortable moving between frontend and backend work, picking the right tool for the problem rather than specializing in one area.Strong knowledge of modern JavaScript/TypeScript and frameworks such as React, alongside experience building scalable backend services and APIs.Comfortable leveraging modern AI-assisted development tools (e.g. Cursor, Claude, ChatGPT ...

support and operational expertise. The kinds of technology: Demonstrated experience Python API’s experience Understanding Java Serverless/Container‐Orchestrator Nice to have Groovy, JavaScript AWS, Kubernetes (K8/EKS) Video technology (Transcoding, DRM, Ad Insertion, Streaming video protocols) About you Your core skillset and expertise are in integrations ...

controls, notifications, forms and catalog items.Experience developing or supporting integrations using REST, SOAP, APIs, IntegrationHub, MID Server and Import Sets, with working knowledge of JavaScript, Glide APIs, HTML, CSS, XML and other relevant ServiceNow technologies.Experience building custom scoped applications from scratch and delivering enterprise workflows across multiple ServiceNow product areas ...

mobile-first product work. Strong working knowledge of RESTful and GraphQL APIs, serverless architectures and CI/CD pipelines. Comfortable in TypeScript and JavaScript, with experience in cloud-native ecosystems and modern tooling. A track record of using data and experimentation to guide technical and product decisions. Demonstrable experience with ...

shiny knowledge thorough experience in clinical data structures and programming with data expert in functional and object-oriented programming. Knowledgeable in Javascript/Typescript, HTML, WebGL, experience in CUDA/GPU-programing, cloud-computing, Github, web-hosting. Strong communication skills and ability to work both, independently and collaboratively, clear ...

tool operator; you can build from scratch, reason about a codebase, and contribute to a modern web platform. Comfort with TypeScript/JavaScript (and ideally React) is a real plus; cloud experience is essential, though we’re not precious about which (AWS, GCP, Azure, or Cloudflare). Autonomy. ...

these areas:Proven experience as a Front-End Developer, with a strong portfolio showcasing your front-end development skills.Proficiency in HTML, CSS, and JavaScript, with experience in modern frameworks such as React, Angular, or Vue.js.Solid understanding of responsive web design principles and cross-browser compatibility.Experience with version control systems, such ...

CoPilot OR hands-on experience working with the respective products at the expert level. Programming Languages and Integration: Proficient with Python, C#, R, JavaScript, or similar programming languages in the context of application development, and ability to integrate Azure AI with other services (e.g., Azure Functions, Kubernetes, Docker, API Management ...

/MCP) and awareness of emerging Agentic Commerce concepts and standards (ACP, AP2, A2A).Software Engineering & API Design: Strong development background (ideally TypeScript/JavaScript) coupled with robust API design, documentation, and versioning experience.DevOps & Quality Automation: Infrastructure-as-Code (Terraform/CDK/CloudFormation), CI/CD pipelines ...

with design tools such as Figma, with experience building structured design systems and component libraries.Demonstrable front-end development skills including proficiency in HTML, CSS, JavaScript/TypeScript, and at least one modern framework (React preferred), with experience delivering production-quality front-end code.Experience planning and conducting user research, usability testing ...

record-level security)Extensive experience with Dynamics 365 customisation techniques including server-side plugins, custom workflow activities, PCF (Power Apps Component Framework) controls, JavaScript/web resources, and client-side scriptingStrong integration architecture experience using Dataverse Web API, Azure Service Bus, Azure Logic Apps, Azure API Management (APIM), Azure Integration ...

will help to create the next iteration of software applications which is changing the international travel industry as we speak. Required experienceC#ASP.NET CoreAPI developmentAngularTypescript, JavaScript, HTML, CSS, SQLJSON,XMLPreferred:MicroservicesAzureCI/CD (preferably Azure Devops)Location: Near FarnboroughSalary: 40 000 to 60 000 per annum Multiple positions available ...

solid understanding of database architecture with proven experience of Microsoft SQL • Understanding and use of common web based technologies such as ASP.NET, MVC, Javascript & Javascript frameworks, AJAX, jQuery, CSS, XML • Experience of product lifecycle including systems analysis, development of system design documentation and test and release. You will get experience ...

contribute to software architecture and help to influence technical direction. You will likely have some of the following experience: React TypeScript/JavaScript NodeJS Azure cloud tech An understanding of modern architecture for developing web applications Agile development The team work on a remote basis, with very infrequent meet ...

What does a Software Engineer do? Software Engineers design, build, test and operate software systems. Day-to-day work mixes coding (typically in Python, JavaScript/TypeScript, Java, Go or Ruby), technical design, code review, debugging, system architecture decisions, and on-call incident response. UK engineers operate across many product ...

best training and development packages in the market, all inclusive.My client is based near WimbledonASP.NET MVC, razor, c#, sql, mvc, .net, javascript, greenfield, , data, analytics, api, jquery ...

best training and development packages in the market, all inclusive. My client is based near WimbledonASP.NET MVC, razor, c#, sql, mvc, .net, javascript, greenfield, , data, analytics, api, jquery ...

best training and development packages in the market, all inclusive.My client is based near Kingston in LondonASP.NET MVC, razor, c#, sql, mvc, .net, javascript, greenfield, , data, analytics, api, jquery, rest, powershell, python, continuous, delivery, integration ...

reviewed and tested by other developers within the team. We use SQL and C# .Net as core languages as well as HTML, CSS and Javascript to make dynamic user interfaces, bringing a more seamless user experience. You will apply system-analyst techniques and procedures, including consulting with internal users ...

reviewed and tested by other developers within the team. We use SQL and C# .Net as core languages as well as HTML, CSS and Javascript to make dynamic user interfaces, bringing a more seamless user experience.You will apply system-analyst techniques and procedures, including consulting with internal users to determine ...

experience across the full UI development lifecycle, including design, development, testing, and deployment. Technical Skills & Expertise- Frontend Technologies: Expert-level proficiency in HTML, CSS, JavaScript, React, and TypeScript Real-Time Communication: Strong understanding of WebSockets, Server-Sent Events (SSE), and REST APIs State Management & Programming: Solid experience with state management ...