ECMAScript Jobs in London

176 to 200 of 714 ECMAScript Jobs in London

🌳X2 React Software Engineers - London - Flexible Hybrid - £40-70k - Mid to Senior level🌳

London Area, United Kingdom
Hybrid / WFH Options
Areti Group
package This application has multiple positions available and we are accepting Senior and Mid-level candidates. Essential Requirements: Strong knowledge of React . Vanilla Javascript (including ES6+) Redux React Router Tanstack Next.js React Query React Native TypeScript Mobile-first development and responsive design Desirable Requirements: An understanding of accessibility and more »
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Solution Architect - Java/React JS

London, United Kingdom
iXceed Solutions
AWS, CI/CD pipelines, GitHub, and GitAction. Lead quality assurance efforts, both manual and automated, using frameworks such as Mocha with Webdriver.IO and JavaScript, ensuring the delivery of high-quality digital products. Collaborate closely with stakeholders, including clients, product owners, designers, developers, and QA engineers, to ensure successful project more »
Employment Type: Any
Salary: GBP Annual
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Backend Developer

London Area, United Kingdom
Hybrid / WFH Options
Anson McCade
Security, Counter Terrorism, or Justice Project involvement. Proficiency in software development and a passion for writing code. Understanding of the fundamentals of Java, TypeScript, JavaScript, and/or Python software development. Demonstrable understanding of working in teams, particularly in agile methodologies such as Scrum & Kanban. Delivering cloud-native and containerised more »
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Senior Java Analyst Developer

London Area, United Kingdom
Hybrid / WFH Options
Quant Capital
Developer around digital applications, software engineering, microservices and cloud. This could include Core Java, Spring Boot, Hibernate/JPA and UI using React, Ember, JavaScript or HTML. Cloud experience with containerization (Docker, Kubernetes), Database (Relational and NoSQL), Messaging (RabbitMQ), Repository (BitBucket), or Helm Charts would be highly regarded (not all more »
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Back End Developer

London, England, United Kingdom
Hybrid / WFH Options
Anson McCade
or Justice Project involvement. Proficiency in software development and a passion for writing code. Understanding of the fundamentals of software development in Java, TypeScript, JavaScript, and/or Python. Demonstrable understanding of working in teams, particularly in agile methodologies such as Scrum & Kanban. Delivering cloud-native and containerised applications using more »
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Full Stack Web Developer

London, Prince's, United Kingdom
Hybrid / WFH Options
Deerfoot IT Resources Limited
WordPress Themes: Skilled in developing and converting designs into WordPress themes. Front-End Languages: Strong knowledge of multiple front-end languages, including PHP, HTML5, JavaScript, React/Next.js, SCSS, CSS, and JQuery. Web Architecture: Good understanding of web architecture and responsive design principles. PHP and MySQL: Strong understanding of PHP more »
Employment Type: Contract
Rate: £450 - £500/day Outside IR35
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Front End Developer

London, United Kingdom
Anson McCade
Terrorism, or Justice Project involvement.Proven experience as a Front-End Developer, with a strong portfolio showcasing your front-end development skills.Proficient in HTML, CSS, JavaScript, and modern frameworks like React, Angular, or Vue.js.Solid understanding of responsive web design principles, cross-browser compatibility, version control systems (e.g., Git), and front-end more »
Salary: £ 70 K
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Mid Level Software Engineer (3)

London, United Kingdom
Confidential
KEY SKILLS: Desired: Utilisation of modern PHP 8+ in commercial settings, along with expertise in development frameworks like Laravel/Symfony. Proficiency required in JavaScript/TypeScript for work with NodeJS frameworks such as NestJS, and familiarity with frontend frameworks like React.JS, with potential for skill enhancement in these areas. more »
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Technical Lead / Full Stack Engineer

London, United Kingdom
Hybrid / WFH Options
Hays
of UI design tools (e.g. Adobe XD) React experience designing and developing UIs to collect and display analytical data Good knowledge of HTML, CSS, Javascript, typescript Development and documentation of Web APIs (e.g. Swagger, Open API) Wider personal background: Good interpersonal skills and the ability to communicate about technical issues more »
Employment Type: Permanent, Work From Home
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QA/Test Analyst

London Area, United Kingdom
Argentex Group PLC
and SWIFT. Experience using Postman. ISTQB Certified (Level 1). Understanding of testing design patterns such as the page object model. Languages: Typescript/Javascript SQL more »
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Senior Software Engineer In Test

London, United Kingdom
Confidential
CI/CD pipelines with Gitlab Familiarity with Agile/Scrum/Kanban methodologies. Proficient in programming languages such as PHP and TypeScript/JavaScript Experience with tools like Postman, LambdaTest, and K6. Skilled in troubleshooting test failures and implementing appropriate fixes. Proficient in conducting feasibility, compatibility testing, and prototyping more »
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Senior Software Engineer, Dashboard Platform

London, United Kingdom
Hybrid / WFH Options
Confidential
with other developers in the company to ensure adoption of our products YOU MIGHT BE A FIT IF YOU HAVE: Good knowledge of modern JavaScript/TypeScript, HTML & CSS Experience with at least one recent framework (e.g. React, Vue, Svelte). We're invested heavily in React so it would more »
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Technology Lead - Underwriting Technology

City of London, London, United Kingdom
I3 Resourcing Limited
or similar role, working within Agile frameworks and associated architectures, design, coding languages and testing & deployment tools, including the following: Angular 6 Java/JavaScript/JSON Ci/Cd pipeline build & deployment tools e.g. Bamboo Micro services & APIs Cloud experience (AWS & Azure) and serverless code deployment API integration experience more »
Employment Type: Permanent
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Senior Data Scientist

London, United Kingdom
Confidential
team. WHO YOU ARE Proven experience as a Front-end Engineer, with expertise in either Angular or React. Strong proficiency in HTML, CSS, and JavaScript, with a solid understanding of modern front-end frameworks and libraries. Experience with responsive design and cross-browser compatibility. Familiarity with backend technologies and APIs more »
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Dynamics 365 Power Pages Architect

London, United Kingdom
Infoplus Technologies UK Ltd
Essential Skills: Keep up-to-date on all Microsoft Dynamics 365 offerings Firm grasp and experience with development on the Dynamics platform, including: o JavaScript and/or Typescript o C# o API Consumption o Some SQL knowledge o Some Markup knowledge Perform Dynamics 365 Online setup through Office more »
Employment Type: Permanent
Salary: GBP 95,000 Annual
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Senior Fullstack Engineer (London)

London, United Kingdom
Hybrid / WFH Options
Confidential
s degree in Computer Science, Mathematics related technical field, or equivalent practical experience 4+ years work experience with back-end applications Solid understanding of Javascript Familiarity with Node.js Experience with TypeScript Good knowledge of web architecture (URIs, HTTP, Caching, etc) Proficiency in Git version control Familiarity with UNIX terminal Excellent more »
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Lead Software Engineer

London, United Kingdom
Hybrid / WFH Options
Confidential
and recommendations on current and emerging technologies Your Experience: Minimum of 5 years of Ruby on Rails experienceFront-end technologies including HTML, CSS and JavaScript frameworksCloud computing platforms (preferably AWS)SQL & NoSQL database development, management and maintenanceIntegrated payment systems, Stripe or similarKnowledge of industry-standard continuous integration and delivery best more »
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Microsoft Dynamics 365 Managed Services Consultant

London, England, United Kingdom
Version 1
Qualifications Good knowledge of the MS Dynamics platform and core technologies (Dynamics 365/CRM). Clear knowledge of Microsoft stack such as .NET, JavaScript, ASP.NET, MVC, C# .NET for Plugins and custom workflows, Integrations using .NET. Power Platform experience is preference. Client facing experience. D365 CS experience. Experience working more »
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Test Engineer

London, England, United Kingdom
Version 1
exploratory, systems integration and user acceptance testing e.g. manual testing Confident with building and maintaining frameworks in one or more of these languages: Java, JavaScript, Python, or C# Have practical experience with open source tools such as: Cypress, Karate, PlayWright, Selenium or similar Worked in an agile environment Resident in more »
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Software Engineer - React & React Native

Greater London, England, United Kingdom
Hybrid / WFH Options
Builder.ai
team culture that fosters personal and professional growth, setting the stage for an inspiring journey ahead. Requirements Solid experience in front-end multi-platform JavaScript-based technologies ReactJS React-Native Large-scale platform environment CS degree required or equivalent work experience Outstanding communication skills, both written and oral Expert understanding more »
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Senior Software Engineer

London, United Kingdom
Hybrid / WFH Options
Confidential
drive continual improvement Are keen to proactively seek opinion of the relevant chapter and fellow engineers Our ideal candidate has: Experience working on modern Javascript UI applications (React/Redux are preferred) and Node.js APIs, ideally using Typescript An understanding of different non-functional requirements (e.g. scalability, reliability, performance) and more »
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SC Cleared- Power Platform Developer

London, United Kingdom
Hybrid / WFH Options
Triad
Canvas and Model Driven Power Apps. * Configuration and customisation of Dynamics 365 and SharePoint Online and associated components using plugins, custom workflow assemblies and JavaScript, as well as extended Azure/Office 365 functionality. * Familiarity with Microsoft Power BI. * Awareness of the different products in the Microsoft solutions suite. * Eagerness more »
Employment Type: Permanent
Salary: £50000 - £65000/annum Company benefits
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Software Quality Engineering Manager

London, United Kingdom
Hybrid / WFH Options
Confidential
you are confident in the use of Cypress for User Interface and/or API testing (we use TypeScript, you can easily transition from JavaScript) Python, and GoLang testing frameworks are nice to have Experience with automated load/stress and performance testing and tools Experience with SQL Experience testing more »
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Senior Software Engineer - RVU Platform

London, United Kingdom
Hybrid / WFH Options
Confidential
pipelines A breadth of knowledge about all aspects of software development and a strong appreciation for monitoring and alerting. Preferably having experience with Python, Javascript, Golang, or a similar language. Working knowledge of GCP, SQL, and terraform (HCL) would be beneficial, but not essential Committed to your own development and more »
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Senior Software Engineer, Stablecoin

London, United Kingdom
Confidential
APIs experience. Interest in the cryptocurrency, decentralized finance(Defi) space. Understanding of exchange, crypto payment, decentralized finance, NFTs, etc. Experience with React or other javascript frameworks Experience with Solidity or Rust WHO WE ARE: Do Your Best Work The opportunity to build in a fast-paced start-up environment with more »
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