26 to 50 of 489 JavaScript Jobs in London

QE AI Engineer (Python)

Hiring Organisation
NTT DATA
Location
London, UK
Employment Type
Full-time
full SDLC, not limited to test execution Experience working with at least one modern programming language such as Python (is a MUST), Java, JavaScript/Typescript or C# Experience with web, API, and non-functional testing approaches Experience using CI/CD pipelines to integrate and run automated tests Good ...

Principal Developer

Hiring Organisation
Version 1
Location
London, UK
Employment Type
Full-time
engineering practices like code reviews, CI/CD pipelines, and SOLID/DRY principles. Technical Skills: Hands-on experience with the following technologies: Frontend: JavaScript/TypeScript, Angular, React, Node. Backend: Java, Spring Boot, Hibernate. Desirable Kotlin. Estimation and Sizing: Experience in estimation and sizing. Integration and API Design: Experience ...

Delivery Consultant, AWS Professional Services

Hiring Organisation
AmazonWebServices
Location
London, UK
Employment Type
Full-time
large-scale software development or application engineering with recent coding experience in two or more of: Java, C#/.NET, Python, TypeScript/JavaScript, Node.js, Go, Ruby, Swift.- Experience with Infrastructure as Code (Terraform, CloudFormation, CDK) and CI/CD pipelines (e.g., CodePipeline, GitHub Actions, GitLab CI)Preferred qualification ...

Solution Architect

Hiring Organisation
Version 1
Location
London, UK
Employment Type
Full-time
Azure Event Grid, with the ability to design scalable and resilient integration solutions. Microsoft Stack Expertise: Strong knowledge of the Microsoft stack (.NET, JavaScript, ASP.NET, C#) for plugins, workflows, and custom integrations. Agile Methodologies: Experience working within Agile and DevOps teams. Experience with Azure DevOps for CI/ ...

Software Engineer

Hiring Organisation
BAE Systems
Location
Greater London, United Kingdom
Employment Type
Full Time
impact to the security of the UK. About you You will have experience in many of the following: Programming in one or more of JavaScript, Java, .Net, Python Collaboratively designing and building Proof of Concept or Production systems Source controlling your code with Version Control Systems, for example Git, Mercurial ...

Senior Full Stack Developer

Hiring Organisation
Falcon Chase International
Location
London, UK
Employment Type
Full-time
productivity and code quality. Required Skills & Experience 12+ years of experience in full-stack software development. Strong hands-on experience with React.js, TypeScript and JavaScript (ES6+). Backend development experience using Node.js and Express.js. Experience working with MongoDB and Oracle Database. Good knowledge of HTML5, CSS3 and SCSS. Experience with ...

.NET Developer

Hiring Organisation
Noir
Location
London, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £90,000 per annum
application development (.NET Core, C#) or winforms/WPF (C#) development. Our client will provide you with training into: .NET 10.0, WPF, MVVM, Prism, JavaScript, React, Angular 21, Microservices, MongoDB, Vue.js, TypeScript, Azure, AWS, ASP.NET Core Web API, Entity Framework, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and Azure SQL. ...

.NET Developer, CMS, Sitecore, EpiServer, Umbraco

Hiring Organisation
Noir
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £75,000 per annum
such as Sitecore, Optimizely, Umbraco, Alterian, Immediacy, Ektron, Kentico, Sitefinity or dotnetnuke. Our client can provide you with industry recognised training in: .NET 10.0, JavaScript, React, Angular 21, Microservices, MongoDB, Vue.js, TypeScript, Azure, AWS, ASP.NET Core Web API, Entity Framework, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and MongoDB. This ...

Senior Dynamics 365 Customer Engagement (CE) Developer

Hiring Organisation
Expleo Group
Location
London, United Kingdom
Employment Type
Permanent
solutions Solution Development Design, develop and maintain enterprise-scale Dynamics 365 CE solutions. Develop custom functionality using: C# .NET Plug-ins Custom Workflow Activities JavaScript/TypeScript Web API PCF Controls Extend and customise Model-Driven Apps to support complex business processes. Design and implement robust integrations with internal ...

Senior Python Developer - up to 90,000 + Bonus - Hybrid

Hiring Organisation
Involved Solutions
Location
London, UK
Employment Type
Full-time
operational workflowsBuild RESTful APIs using Flask and FastAPI for internal services and cross team integrationsDevelop lightweight web based dashboards and interfaces using HTML, CSS, JavaScript and Jinja2Work with PostgreSQL, MySQL, MongoDB and Redis for application, configuration and testing dataBuild and maintain Docker and Docker Compose environments for application deployment ...

Full Stack Engineer

Hiring Organisation
DCV Technologies
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £450/day Hybrid / Inside IR35
Strong understanding of MVC architecture, design patterns, and dependency injection. • Experience building and maintaining RESTful APIs. Frontend Development • Strong knowledge of HTML5, CSS3, and JavaScript (ES6+). • Commercial experience building applications with React.js. • Experience with component-based architecture and state management using: o React Hooks o Redux o Context ...

Technical Lead

Hiring Organisation
Anson Mccade
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£95,000
system design background Experience delivering enterprise applications using AWS, Azure or GCP Strong engineering experience with technologies such as Python, SQL, Java, .NET or JavaScript Experience working with modern enterprise data technologies such as Snowflake and/or Databricks Good understanding of enterprise data platforms, data architecture, on-premise lakehouse ...

C# Senior Developer

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
TeamCity, and Chef Experience of messaging or transactional environment i.e. NServiceBus, Websphere MQ, MSMQ or RabbitMQ Experience of web technologies including HTML, CSS, JavaScript, jQuery and web client frameworks such as Knockout.js or Angular Experience of XML, JSON and related like schemas and XSLT transformations Experience ...

Drupal Developer

Hiring Organisation
X4 Group
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£350.00 - £375.00 per day
checks and controlled releases Troubleshoot production issues, investigate incidents and implement preventative measures Develop and maintain accessible, maintainable code using PHP, HTML, CSS and JavaScript Support WCAG 2.2 AA compliance, identifying and resolving accessibility issues across navigation, forms, templates and published content Build and maintain REST APIs and third-party ...

Software Developer in Test - C3

Hiring Organisation
Scale Factory
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Skills & Experience: Eligibility for Security Clearance Experience in Agile environments (e.g., SCRUM, Kanban) A technical development background with coding skills in Java, C#, TypeScript, JavaScript, or similar Expertise in automation testing, with hands-on experience using tools like Playwright, Selenium, Cypress, or RestAssured Knowledge of integration testing and automation frameworks ...

Senior Software Developer in Test - Senior Consultant

Hiring Organisation
Centre4 Testing
Location
London, UK
Employment Type
Full-time
Experience: Eligibility for SC clearanceSignificant experience in Agile environments (e.g., SCRUM, Kanban).Solid technical development background with strong coding skills in Java, C#, TypeScript, JavaScript, or similarProven expertise in automation testing, with hands-on experience using tools like Playwright, Selenium, Cypress, or RestAssuredStrong knowledge of integration testing and automation frameworksExperience ...

Senior Intelligent Automation & Low-Code Developer (Power Platform & Copilot)

Hiring Organisation
Scale Factory
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Power Platform and/or Copilot Previous RPA experience (UiPath, Power Automate Desktop, Blue Prism, Automation Anywhere) Knowledge of coding languages (e.g., .NET, JavaScript, Python ) to extend low-code solutions Experience integrating Power Platform with Azure AI services or other enterprise systems Whats in It for You? At Scale Factory ...

Lead Software Developer In Test - Lead Consultant

Hiring Organisation
Scale Factory
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
leadership in QA/testing roles, with experience guiding teams and managing delivery in Agile environments (SCRUM, Kanban) Strong programming skills in Java, C#, JavaScript/TypeScript , or similar Deep expertise in test automation frameworks such as Selenium, Playwright, Cypress, or RestAssured Experience with integration testing, test strategy , and test ...

Senior DevOps Engineer (8 Month FTC)

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent
microservices (e.g. Docker, rkt) IaaS and PaaS (e.g. AWS, Openstack, Deis, Kubernetes, Mesos, Rancher) Experience of programming and scripting (e.g. Bash, Java, Go, Javascript, Powershell) Experience of configuration management tools such as Ansible, Chef, Puppet Experience of implementing Infrastructure as Code Experience configuring and working with monitoring tools (e.g. Newrelic ...

Senior Software Engineer I

Hiring Organisation
Elsevier
Location
London, UK
Employment Type
Full-time
implementing enhancements to continually improve our delivery processPartnering with cross-functional Agile and DevOps implementation teamsRequirementsDemonstrate some proficiency in some of these technologies; JavaScript/TypeScript, Frontend frameworks, Java/SpringBoot, SQL with a willingness to learn the others. Display some experience with build tools, Git and continuous integrationEnjoy collaborating ...

Forward Deployed Engineer

Hiring Organisation
monday.com
Location
London, UK
Employment Type
Full-time
knowledge of APIs (REST, GraphQL), webhooks, MCP, identity management (SCIM), and authentication protocols (SAML 2.0/OAuth 2.0).Software development experience in TypeScript and JavaScript, with depth in React or Node.js; full-stack experience preferred. Hands-on experience in enterprise data mobility and integrations: the SQL, scripts ...

Senior Microsoft Power Platform and AI Developer

Hiring Organisation
Methods Consulting
Location
London, UK
Employment Type
Full-time
custom connectors, OAuth 2.0, Microsoft Entra ID and secure secrets management. Pro-code engineering capability in one or more languages such as TypeScript/JavaScript, C# or Python, with experience extending low-code services appropriately. Strong software engineering practice, including testing, version control, code review, documentation, CI/CD, observability ...

Front End Web Developer for AI Legal Tech Company in London

Hiring Organisation
Mindbench
Location
London, UK
Employment Type
Full-time
these live systems, with a path to owning the suiteTechnical RequirementsCore Frontend Skills Vanilla Web Technologies: Extensive experience with HTML, CSS, and vanilla JavaScript (React/Next.js not required) Node.js Backends: Comfortable reading, debugging, and extending Node.js/Express REST API servers SQL: Confident writing and debugging T-SQL against ...

M365 Power Platform Consultant

Hiring Organisation
Version 1
Location
London, UK
Employment Type
Full-time
core feature set, and working knowledge of SharePoint Services; BCS, Search, Excel, etc. Knowledge of C# & SQL programming (e.g. TSQL) advantageousKnowledge of HTML, CSS3, JavaScript, jQuery, and Source control methodologies and principles advantageousKnowledge of React, Angular, or other JS frameworks advantageous. Familiarity with MVC framework, working knowledge of common architectural ...

Automation Tester (Front End) - (Security Cleared)

Hiring Organisation
Solirius Consulting
Location
London, UK
Employment Type
Full-time
tools, like Cypress or Playwright. Hands-on experience of building test automation frameworks from scratch. Proficiency in scripting and programming languages such as JavaScript and TypeScript (3+years). Experience testing web applications across multiple browsers and operating systems including mobile. Experience of API testing, ideally using RestAssured or SoapUI.Expertise ...