ECMAScript Jobs in London

351 to 375 of 1,128 ECMAScript Jobs in London

Dynamics 365 CRM Developer

London, UK
Hybrid / WFH Options
X4 Technology
s degree or equivalent in Computer Science or related field Proven experience with Dynamics 365 and Power Platform in a large-scale, global environment Strong development skills in C#, JavaScript, and TypeScript Experience with Azure DevOps, GitHub, Visual Studio, and Plugin Registration Tool Excellent understanding of CRM functionalities, with a customer-focused mindset Strong problem-solving skills, attention to detail More ❯
Employment Type: Full-time
Posted:

Dynamics 365 CRM Developer

City of London, Greater London, UK
Hybrid / WFH Options
X4 Technology
s degree or equivalent in Computer Science or related field Proven experience with Dynamics 365 and Power Platform in a large-scale, global environment Strong development skills in C#, JavaScript, and TypeScript Experience with Azure DevOps, GitHub, Visual Studio, and Plugin Registration Tool Excellent understanding of CRM functionalities, with a customer-focused mindset Strong problem-solving skills, attention to detail More ❯
Employment Type: Full-time
Posted:

Dynamics 365 D365 CRM Developer

London, South East, England, United Kingdom
Hybrid / WFH Options
X4 Technology
s degree or equivalent in Computer Science or related field Proven experience with Dynamics 365 and Power Platform in a large-scale, global environment Strong development skills in C#, JavaScript, and TypeScript Experience with Azure DevOps, GitHub, Visual Studio, and Plugin Registration Tool Excellent understanding of CRM functionalities, with a customer-focused mindset Strong problem-solving skills, attention to detail More ❯
Employment Type: Full-Time
Salary: £70,000 per annum
Posted:

Software Engineer

London, UK
Hybrid / WFH Options
developrec
shared internal packages AI: AI-powered features embedded into customer and internal tools What We’re Looking For 3+ years of experience in full-stack development Strong skills in JavaScript/TypeScript and React-based frameworks (Next.js preferred) Good eye for design, usability, and performance on the frontend Some experience (or willingness to grow) with backend technologies like Node.js or More ❯
Posted:

Software Engineer

City of London, Greater London, UK
Hybrid / WFH Options
developrec
shared internal packages AI: AI-powered features embedded into customer and internal tools What We’re Looking For 3+ years of experience in full-stack development Strong skills in JavaScript/TypeScript and React-based frameworks (Next.js preferred) Good eye for design, usability, and performance on the frontend Some experience (or willingness to grow) with backend technologies like Node.js or More ❯
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C++ Software Engineer

Hounslow, London, United Kingdom
iDPP
. Skills 1. Excellent C++ skills and familiarity with C++ 11 (and above) standards. 2. Knowledge of Python 3 (any additional Scripting language would be considered a plus i.e. JavaScript, Typescript, etc.) 3. Knowledge in Linux/Unix environment. 4. Experience with version control system git (i.e. BitBucket, GitHub). 5. Cloud fundamentals (i.e. Kubernetes, Docker, Helm) knowledge would be More ❯
Employment Type: Contract
Rate: From £300 to £400 per day
Posted:

Product Engineer - Frontend - UK

London, United Kingdom
startups
Must Haves 5+ years shipping production web apps with React (or a comparable framework) and TypeScript. Demonstrated ownership of complex features from spec production monitoring. Deep understanding of modern JavaScript/TypeScript, browser performance, accessibility fundamentals, and secure session management. Comfortable designing/consuming API contracts and collaborating closely with Python or Go backend engineers. Proven ability to make pragmatic More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Full Stack Developer

London, South East, England, United Kingdom
Hybrid / WFH Options
Avanti
with Azure services for optimal performance and scalability Essential Technical Skills: Backend: C# & .NET (Framework 4.8 & Core), ASP.NET MVC/Web API Frontend: Vue.js 2/3, Nuxt.js, TypeScript, JavaScript Database: SQL Server, Entity Framework (Core & 6) Cloud: Microsoft Azure (Web Apps, SQL Server, Web Jobs) Additional: SignalR, Stylus CSS, Git workflows Team & Culture: You'll join a small, talented More ❯
Employment Type: Full-Time
Salary: £60,000 - £70,000 per annum
Posted:

Full Stack Developer

Islington, Greater London, St. Peter's, United Kingdom
Hybrid / WFH Options
Avanti Recruitment
with Azure services for optimal performance and scalability Essential Technical Skills: Backend: C# & .NET (Framework 4.8 & Core), ASP.NET MVC/Web API Frontend: Vue.js 2/3, Nuxt.js, TypeScript, JavaScript Database: SQL Server, Entity Framework (Core & 6) Cloud: Microsoft Azure (Web Apps, SQL Server, Web Jobs) Additional: SignalR, Stylus CSS, Git workflows Team & Culture: You'll join a small, talented More ❯
Employment Type: Permanent
Salary: £60000 - £70000/annum
Posted:

Full Stack Engineer

City of London, London, United Kingdom
Expedia Group
In this role, you will: Design and develop backend services and data APIs using Scala, Java, or Kotlin on the JVM. Build intuitive and responsive web interfaces using modern JavaScript frameworks (e.g., React, Vue, or Angular). Collaborate with cross-functional teams across product, design, and engineering to deliver full-featured applications. Contribute to the design and implementation of scalable More ❯
Posted:

Full Stack Engineer

London Area, United Kingdom
Expedia Group
In this role, you will: Design and develop backend services and data APIs using Scala, Java, or Kotlin on the JVM. Build intuitive and responsive web interfaces using modern JavaScript frameworks (e.g., React, Vue, or Angular). Collaborate with cross-functional teams across product, design, and engineering to deliver full-featured applications. Contribute to the design and implementation of scalable More ❯
Posted:

Frontend Developer

London, United Kingdom
Hybrid / WFH Options
Salt Digital Recruitment
customer experience and developer experience efforts Collaborate with globally distributed multi-functional teams to deliver and support products Our minimum Basic Qualifications for this role 5+ years of modern JavaScript development experience - Typescript/NodeJS, yarn/npm, Sass (SCSS) 2+ years of database usage (CouchDB/PouchDB, PostgreSQL, Druid) and CRUD experience 3+ years of web framework experience (Ember.js More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Lead Backend Developer Python Java AWS

London, South East, England, United Kingdom
Hybrid / WFH Options
Client Server Ltd
help scale and future proof the business. You'll focus on backend Python and Java engineering on AWS but there's a range of other tech in the stack (JavaScript, Vue.js, TypeScript and of course a bit of legacy PHP!), you'll be encouraged to explore new technologies and use the best tool for the job. There's an emphasis More ❯
Employment Type: Full-Time
Salary: £100,000 - £115,000 per annum
Posted:

Backend Software Engineer / Technical Lead

London, UK
Hybrid / WFH Options
Client Server
help scale and future proof the business. You'll focus on backend Python and Java engineering on AWS but there's a range of other tech in the stack (JavaScript, Vue.js, TypeScript and of course a bit of legacy PHP!), you'll be encouraged to explore new technologies and use the best tool for the job. There's an emphasis More ❯
Posted:

Backend Software Engineer / Technical Lead

London, South East, England, United Kingdom
Hybrid / WFH Options
Client Server Ltd
help scale and future proof the business. You'll focus on backend Python and Java engineering on AWS but there's a range of other tech in the stack (JavaScript, Vue.js, TypeScript and of course a bit of legacy PHP!), you'll be encouraged to explore new technologies and use the best tool for the job. There's an emphasis More ❯
Employment Type: Full-Time
Salary: £100,000 - £115,000 per annum
Posted:

Director of Software Engineering

London, UK
Hybrid / WFH Options
Better Placed Ltd - A Sunday Times Top 10 Employer!
technical leadership experience (Head/Director level), ideally within AI-first or ML-focused product companies. Deep understanding of full-stack development, with proficiency in Python, TypeScript, and modern JavaScript frameworks. Experience in cloud infrastructure deployment (AWS/GCP/Azure) and containerisation/orchestration (Docker/Kubernetes). Comfortable working with or around machine learning pipelines, even if not More ❯
Employment Type: Full-time
Posted:

Director of Software Engineering

City of London, Greater London, UK
Hybrid / WFH Options
Better Placed Ltd - A Sunday Times Top 10 Employer!
technical leadership experience (Head/Director level), ideally within AI-first or ML-focused product companies. Deep understanding of full-stack development, with proficiency in Python, TypeScript, and modern JavaScript frameworks. Experience in cloud infrastructure deployment (AWS/GCP/Azure) and containerisation/orchestration (Docker/Kubernetes). Comfortable working with or around machine learning pipelines, even if not More ❯
Employment Type: Full-time
Posted:

Full-Stack Developer (Node/Sails.js + Vue/Nuxt.js)

London, United Kingdom
Hybrid / WFH Options
PlannerPal
Developer Education (e.g. a reputable coding bootcamp) 2+ years experience of designing, developing, shipping and maintaining backend applications using Node/Sails.js and front end-web applications using modern javascript frameworks (ideally Vue/Nuxt.js) Has experience of working with both MongoDB and AWS hosting and backend services (e.g. Cognito, S3, SES) Has experience of designing, building and maintaining automated More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Dynamics 365 & Power Platform Specialist

London, United Kingdom
Michael Page (UK)
managing solution CI/CD pipelines using Azure DevOps. Extensive experience in customizing Dynamics 365, with a particular focus on CRM (Sales and Marketing) modules. Background in C# and JavaScript development, supporting custom extensions and integrations within Dynamics and Power Platform. Experience in supporting and troubleshooting Power Platform applications, ensuring optimal performance and user experience. Knowledge of end-to-end More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

AI Solution Architect (Agentic & Autonomous Systems)

City of London, London, United Kingdom
Hybrid / WFH Options
Staffworx
years in enterprise solution architecture with emphasis on AI/ML system design Deep hands-on experience with AWS : Lambda, API Gateway, SageMaker, DynamoDB, ECS, Step Functions Expertise in JavaScript/TypeScript ecosystem (Node.js, React.js, Express, Next.js) Strong understanding of LLM integration , prompt chaining and tools like LangChain or Semantic Kernel Experience deploying containerized services using Docker , Kubernetes , or ECS More ❯
Posted:

AI Solution Architect (Agentic & Autonomous Systems)

London Area, United Kingdom
Hybrid / WFH Options
Staffworx
years in enterprise solution architecture with emphasis on AI/ML system design Deep hands-on experience with AWS : Lambda, API Gateway, SageMaker, DynamoDB, ECS, Step Functions Expertise in JavaScript/TypeScript ecosystem (Node.js, React.js, Express, Next.js) Strong understanding of LLM integration , prompt chaining and tools like LangChain or Semantic Kernel Experience deploying containerized services using Docker , Kubernetes , or ECS More ❯
Posted:

Lead Front-End Product Developer

City of London, London, United Kingdom
Hybrid / WFH Options
Futuria
over design details, and are excited to work on cutting-edge AI interfaces that go beyond chat. Essential: Customer-centric and secure development mindset Strong proficiency in HTML5, CSS3, JavaScript (ES6+), and TypeScript Deep experience with modern front-end frameworks like React.js or Next.js Strong grasp of responsive and adaptive design principles Experience integrating APIs and working with state management More ❯
Posted:

Lead Front-End Product Developer

London Area, United Kingdom
Hybrid / WFH Options
Futuria
over design details, and are excited to work on cutting-edge AI interfaces that go beyond chat. Essential: Customer-centric and secure development mindset Strong proficiency in HTML5, CSS3, JavaScript (ES6+), and TypeScript Deep experience with modern front-end frameworks like React.js or Next.js Strong grasp of responsive and adaptive design principles Experience integrating APIs and working with state management More ❯
Posted:

Solutions Engineer - Spanish Speaking

London, United Kingdom
Hybrid / WFH Options
Sui
Collaborate with developer educators to support workshops, live coding sessions, and educational content Provide technical guidance to developers integrating Sui into their own applications Required Qualifications: Solid experience with JavaScript/TypeScript and React for frontend development Strong understanding of Next.js and Node.js for backend logic, APIs, and server-side rendering Experience with SQL databases and Redis in a real More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Full Stack Engineer

London Area, United Kingdom
Wave Talent
EventBridge, SNS Tooling: GitHub Actions, Fastlane, Sentry, Mixpanel, Intercom, Maestro E2E, Terraform ✅ What You Bring: 4+ years of software engineering experience (frontend, backend or full-stack) Strong TypeScript and JavaScript skills Proven ability to ship end-to-end features across the stack Comfort working in fast-paced, iterative environments (they shipped 443 API releases last year!) Familiarity with CI/ More ❯
Posted: