1 to 25 of 1,329 ECMAScript Jobs in London

reviews, and best practices Collaborate with cross-functional teams to deliver project goals Stay current with emerging technologies and development methodologies Tech Stack & Tools Programming Languages: C++, C#, Python, JavaScript, TypeScript, Java Frameworks & Libraries: .NET, Node.js, React, Angular, Spring Boot, Django (depending on role) Cloud Platforms: AWS, Azure, GCP DevOps & CI/CD: Docker, Kubernetes, Git, Jenkins Agile methodologies and More ❯

reviews, and best practices Collaborate with cross-functional teams to deliver project goals Stay current with emerging technologies and development methodologies Tech Stack & Tools Programming Languages: C++, C#, Python, JavaScript, TypeScript, Java Frameworks & Libraries: .NET, Node.js, React, Angular, Spring Boot, Django (depending on role) Cloud Platforms: AWS, Azure, GCP DevOps & CI/CD: Docker, Kubernetes, Git, Jenkins Agile methodologies and More ❯

reviews, and best practices Collaborate with cross-functional teams to deliver project goals Stay current with emerging technologies and development methodologies Tech Stack & Tools Programming Languages: C++, C#, Python, JavaScript, TypeScript, Java Frameworks & Libraries: .NET, Node.js, React, Angular, Spring Boot, Django (depending on role) Cloud Platforms: AWS, Azure, GCP DevOps & CI/CD: Docker, Kubernetes, Git, Jenkins Agile methodologies and More ❯

reviews, and best practices Collaborate with cross-functional teams to deliver project goals Stay current with emerging technologies and development methodologies Tech Stack & Tools Programming Languages: C++, C#, Python, JavaScript, TypeScript, Java Frameworks & Libraries: .NET, Node.js, React, Angular, Spring Boot, Django (depending on role) Cloud Platforms: AWS, Azure, GCP DevOps & CI/CD: Docker, Kubernetes, Git, Jenkins Agile methodologies and More ❯

experiences. What We're Looking For Degree in Computer Science, Engineering, or equivalent experience. Proven experience in full stack development and data engineering. Strong front-end skills (HTML, CSS, JavaScript, React required). Solid back-end expertise (Java and Node.js required). Familiarity with cloud-native architectures and DevOps practices. First-class leadership or management skills to guide teams and More ❯

user experiences.What We're Looking For* Degree in Computer Science, Engineering, or equivalent experience.* Proven experience in full stack development and data engineering.* Strong front-end skills (HTML, CSS, JavaScript, React required).* Solid back-end expertise (Java and Node.js required).* Familiarity with cloud-native architectures and DevOps practices.* First-class leadership or management skills to guide teams and More ❯

experiences. What We're Looking For * Degree in Computer Science, Engineering, or equivalent experience. * Proven experience in full stack development and data engineering. * Strong front-end skills (HTML, CSS, JavaScript, React required). * Solid back-end expertise (Java and Node.js required). * Familiarity with cloud-native architectures and DevOps practices. * First-class leadership or management skills to guide teams and More ❯

ll Bring: 5+ years of professional experience in Python (3+) and Django Strong understanding of Django ORM and REST Framework Experience developing and consuming APIs Familiarity with HTML, CSS, JavaScript (React experience a plus) Experience with Celery or event-driven architecture Strong Git workflow and testing practices Excellent problem-solving, communication, and collaboration skills Ability to work autonomously in a More ❯

ll Bring: 5+ years of professional experience in Python (3+) and Django Strong understanding of Django ORM and REST Framework Experience developing and consuming APIs Familiarity with HTML, CSS, JavaScript (React experience a plus) Experience with Celery or event-driven architecture Strong Git workflow and testing practices Excellent problem-solving, communication, and collaboration skills Ability to work autonomously in a More ❯

ll Bring: 5+ years of professional experience in Python (3+) and Django Strong understanding of Django ORM and REST Framework Experience developing and consuming APIs Familiarity with HTML, CSS, JavaScript (React experience a plus) Experience with Celery or event-driven architecture Strong Git workflow and testing practices Excellent problem-solving, communication, and collaboration skills Ability to work autonomously in a More ❯

ll Bring: 5+ years of professional experience in Python (3+) and Django Strong understanding of Django ORM and REST Framework Experience developing and consuming APIs Familiarity with HTML, CSS, JavaScript (React experience a plus) Experience with Celery or event-driven architecture Strong Git workflow and testing practices Excellent problem-solving, communication, and collaboration skills Ability to work autonomously in a More ❯

ll work closely with multidisciplinary teams to deliver scalable, secure, and user-focused solutions. Key Responsibilities Develop microservices using Java (Spring Boot). Build responsive front-end applications using JavaScript/TypeScript, React, HTML, and CSS. Use Git-based version control and CI/CD pipelines (GitHub, GitLab, Jenkins). Containerize applications using Docker and manage deployments in cloud environments More ❯

Minimum 8 years of commercial software development experience, with at least 3 years in a senior or technical lead role. Proven expertise in full-stack development using: TypeScript (and JavaScript frameworks such as NextJS, Node, or Tailwind) Python (including frameworks like Django, Flask, or FastAPI) PostgreSQL and relational database design, optimisation, and maintenance. AI Development Tools such as Windsurf, Aider More ❯

to have. These include:Must haves Proven track record as a developer in an insurance or financial services environment; Strong working knowledge of programming languages (e.g. SQL, C#, VBA, Javascript, XML, JSON, Python); Experience building Excel-integrated applications and/or web-based pricing platforms. Strong database skills (SQL Server or similar) and data integration experience; Proactive, collaborative, flexible and More ❯

using modern programming languages and frameworks Ensure code quality through testing, reviews, and best practices Collaborate with cross-functional teams to deliver project goals Programming Languages: C++, C#, Python, JavaScript, TypeScript, Java NET, Node.js, React, Angular, Spring Boot, Django (depending on role) Cloud Platforms: AWS, Azure, GCP DevOps & CI/CD: Docker, Kubernetes, Git, Jenkins Agile methodologies and tools (e.g. More ❯

the Front End and Back End components of web applications using Java and related technologies. Key Responsibilities: Front End Development: Build responsive and interactive user interfaces using HTML, CSS, JavaScript Use frameworks like React, Angular, or Vue.js for dynamic UI components Back End Development: Develop Server Side logic using Java, especially with Spring Boot, Spring MVC, and Hibernate Implement RESTful More ❯

this role. • Programming Proficiency: •Strong experience with C# and .NET frameworks. •Solid understanding of data structures, algorithms, and programming principles. •Experience working with other relevant languages such as Python, JavaScript, or TypeScript. • Data Systems Knowledge: •Exposure to working in data-centric environments, supporting ETL/ELT pipelines or data processing services. •Familiarity with SQL and NoSQL databases. •Understanding of data More ❯

this role. • Programming Proficiency: •Strong experience with C# and .NET frameworks. •Solid understanding of data structures, algorithms, and programming principles. •Experience working with other relevant languages such as Python, JavaScript, or TypeScript. • Data Systems Knowledge: •Exposure to working in data-centric environments, supporting ETL/ELT pipelines or data processing services. •Familiarity with SQL and NoSQL databases. •Understanding of data More ❯

this role. • Programming Proficiency: •Strong experience with C# and .NET frameworks. •Solid understanding of data structures, algorithms, and programming principles. •Experience working with other relevant languages such as Python, JavaScript, or TypeScript. • Data Systems Knowledge: •Exposure to working in data-centric environments, supporting ETL/ELT pipelines or data processing services. •Familiarity with SQL and NoSQL databases. •Understanding of data More ❯

this role. • Programming Proficiency: •Strong experience with C# and .NET frameworks. •Solid understanding of data structures, algorithms, and programming principles. •Experience working with other relevant languages such as Python, JavaScript, or TypeScript. • Data Systems Knowledge: •Exposure to working in data-centric environments, supporting ETL/ELT pipelines or data processing services. •Familiarity with SQL and NoSQL databases. •Understanding of data More ❯

the SharePoint Platform and core feature set, and working knowledge of SharePoint Services; BCS, Search, Excel, etc. Knowledge of C# & SQL programming (e.g. TSQL) advantageous Knowledge of HTML, CSS3, JavaScript, jQuery, and Source control methodologies and principles advantageous Knowledge of React, Angular, or other JS frameworks advantageous. Familiarity with MVC framework, working knowledge of common architectural patterns, and Agile advantageous. More ❯

Boot and Microservices. Strong understanding of Agile and DevOps practices, with a focus on continuous integration and delivery. Some proficiency in one or more programming languages (e.g., Python, Java, JavaScript) and experience with software architecture patterns. Experience with cloud platforms (e.g., AWS, Azure, GCP) and infrastructure as code. Familiarity with CI/CD pipelines, automated testing, and modern software development More ❯

on experience with Java, Spring Boot and Microservices. Strong understanding of software development methodologies such as Agile, TDD and DevOps. Some proficiency in multiple programming languages such as Python, JavaScript, or similar. Extensive experience writing well-tested code. Good knowledge of cloud platforms (e.g., AWS, Azure, GCP) and infrastructure as code Experience with CI/CD pipelines and automated testing More ❯

agile environment alongside product and engineering teams 5+ years of professional experience in Python (3+) and Django Strong understanding of Django ORM and REST Framework Familiarity with HTML, CSS, JavaScript (React experience a plus) Strong Git workflow and testing practices Ability to work autonomously in a remote-first environment CI/CD knowledge (GitHub Actions, Azure DevOps, etc.) If you More ❯

software solutions. .NET Developer applicants should have commercial experience with: .NET, .NET Core/ASP.NET MVC, C#, Azure SQL and Agile. Full training will be provided into: .NET 9, JavaScript, React, Angular 19, Microservices, Vue.js, TypeScript, Azure, AWS, Web API 2, Entity Framework, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and MongoDB. If you are dedicated to the youthful optimism More ❯