1 to 25 of 139 Remote ECMAScript Jobs in London

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. ...

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 ...

Stack .NET development SQL Server & SQL Server Reporting Services Python for data engineering and Power BI Strong SQL knowledge Git/GitHub React/Javascript Experience within NHS or Healthcare sector is a must have Python software developer - Contract: Required Skillset: 5+ years Software engineering experience with Python ...

backend systems Build cloud-native solutions on Azure with containerization Implement RESTful APIs using Java integrated with banking platforms Develop full-stack features with JavaScript frameworks (Angular) Champion CI/CD, TDD/BDD, and engineering best practices Optimize Java applications for high-volume, high-availability systems What You Need ...

Tealium Event Stream, and Adobe Analytics Experience of integrating data sources via web and hypermedia APIs Proficient in Web Technologies like HTML, CSS, JavaScript, React.js, Next.js and Node.js, and in event-driven and eventual consistency systems using Kafka, .Net, Java, REST APIs, AWS, Terraform and DevOps Nice to have:experience ...

minimum of 5+ software engineering experience, ideally including startup or scale-up environments Hands-on experience across full-stack development using .NET and modern JavaScript frameworks Hands-on experience with cloud platforms (Azure, AWS or GCP) Strong knowledge of cloud platforms, APIs, web technologies and database design A proactive, ownership ...

Contribute to engineering standards and mentor teammates Experience 5+ years full stack web development experience 3+ years production React 3+ years production Node.js Strong JavaScript/TypeScript skills Experience designing and integrating REST APIs Solid experience with MySQL, Git, Express.js, Tailwind CSS and Next.js Comfort with AWS or GCP High ...

outcomes Experience designing and deploying scalable, observable, and maintainable systems Familiarity with microservices architecture (synchronous and asynchronous) Strong experience with NodeJS, TypeScript/JavaScript, and React Good understanding of cloud platforms (AWS, GCP, Azure) Solid grasp of database technologies and trade-offs Experience with automated testing and web security best ...

outcomes Experience designing and deploying scalable, observable, and maintainable systems Familiarity with microservices architecture (synchronous and asynchronous) Strong experience with NodeJS, TypeScript/JavaScript, and React Good understanding of cloud platforms (AWS, GCP, Azure) Solid grasp of database technologies and trade-offs Experience with automated testing and web security best ...

/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 architecture ...

environments where speed, compliance, and innovation go hand-in-hand. Your Technical Toolkit React/React Native/TypeScript Swift (iOS)/Kotlin (Android) JavaScript/HTML/CSS Figma/Git Testing frameworks : Jest, Cypress, XCTest, Espresso CI/CD pipelines : GitHub Actions, CircleCI, Bitrise Cloud-native architecture ...

C#, ASP.NET, MVC, HTML, CSS, JavaScript, Entity Framework, SQL. Azure Service Bus. C++, FIX protocol, SignalR, RabbitMQ, Azure DevOps. Great new permanent opportunity to join our client-based London area. They are a quality-driven development team focused on delivering a great product. The environment is collaborative with real ...

Lambda, IAM) Kafka/event-driven systems SQL optimisation REST/JSON API design Docker proficiency Excellent communication skills Nice to Have JavaScript/React Aurora/RDS If you're proactive, outcomes-driven, and thrive in high-stakes environments with strong stakeholder engagement skills, then please get in touch ...

Lambda, IAM) Kafka/event-driven systems SQL optimisation REST/JSON API design Docker proficiency Excellent communication skills Nice to Have JavaScript/React Aurora/RDS If you're proactive, outcomes-driven, and thrive in high-stakes environments with strong stakeholder engagement skills, then please get in touch ...

development experience including Java backend (Spring Boot) You have experience with relational databases and SQL query writing You have some front end experience with JavaScript, Angular or React You have a strong understanding of REST APIs and real-time systems You're comfortable working with legacy Ruby You have ...

development experience including Java backend (Spring Boot) You have experience with relational databases and SQL query writing You have some front end experience with JavaScript, Angular or React You have a strong understanding of REST APIs and real-time systems You're comfortable working with legacy Ruby You have ...

have: A proven track record leading QA/test automation teams in fast-paced environments Expertise building scalable, maintainable frameworks from scratch using JavaScript/TypeScript, Java, C#, or Python Strong command of OOP principles, SOLID, and clean code practices Experience with BDD/ATDD using Cucumber or SpecFlow Knowledge ...

alongside a talented team contributing ideas, collaborating with designers and prototyping new features. There's a modern tech stack, you'll be mainly using JavaScript/TypeScript and React but will be able to pick new technologies and skills up on the job. Location/WFH: You'll be joining ...

Python (Django, Flask, or FastAPI) PostgreSQL (design, optimisation, maintenance) Containerisation (Docker/Kubernetes) Event-driven architecture (Kafka/RabbitMQ) Desirable experience includes: TypeScript/JavaScript (NextJS, NodeJS, Tailwind) Terraform and DevOps practices Experience in building and scaling SaaS platforms in production. Strong background in software architecture, microservices, and API design. ...

Python (Django, Flask, or FastAPI) PostgreSQL (design, optimisation, maintenance) Containerisation (Docker/Kubernetes) Event-driven architecture (Kafka/RabbitMQ) Desirable experience includes: TypeScript/JavaScript (NextJS, NodeJS, Tailwind) Terraform and DevOps practices Experience in building and scaling SaaS platforms in production. Strong background in software architecture, microservices, and API design. ...

term frontend planning Skills you should HODL 6+ years (or equivalent) professional experience delivering complex web and/or mobile applications Deep expertise with JavaScript/TypeScript, React (or equivalent component-based framework), and modern frontend ecosystems (e.g. Next.js, React Native, consistent build pipelines) Strong foundation in HTML5, CSS3 ...

/CD pipelines . As a Software Engineer first , you will have deep expertise in at least one programming language ( Python, Node.js, Java, JavaScript, TypeScript, React ) and proven experience in productionising GenAI solutions , including integrating LLMs, LangChain, OpenAI API, or Claude . This is a rare opportunity to join ...

framework (experience of Slim4 is beneficial) Solid commercial experience developing front-end applications using React . Proficiency in front-end fundamentals: HTML5, CSS3, JavaScript (ES6+). Experience working with relational databases (e.g., MySQL, PostgreSQL) and writing complex SQL queries. Proficient with version control systems, particularly Git. Experience building and consuming ...

quantitative challenges Comfort working in a dynamic startup environment Qualifications Microsoft Azure experience, particularly R integration Application containerization knowledge (Docker, etc.) Familiarity with Python, JavaScript, C++, bash, or other languages Web application development experience (React, .NET) Background in data security and IP protection workflows Knowledge of environmental sustainability concepts (carbon ...

want What You'll Bring Experience building and shipping full-stack features in ambiguous, fast-paced environments Solid skills in NodeJS, TypeScript/JavaScript, and React Experience with microservices (synchronous + asynchronous) Familiarity with cloud platforms like AWS, GCP or Azure Good understanding of databases and how to choose ...