26 to 50 of 1,015 ECMAScript Jobs in London

Experience building production software applications. Strong understanding of software architecture and software engineering principles. Experience with one or more modern technology stacks such as: JavaScript/TypeScript React/Next.js Node.js PHP/Laravel .NET Java Good understanding of APIs and system integrations. Experience working with relational databases such ...

served Written production‐quality code using a variety of languages and frameworks, including but not limited to: Java, C#/.NET, Python, TypeScript, JavaScript, React, Go, Ruby, Scala, R, and SQL Leveraged AI‐assistive development tools for tasks like scaffolding, refactoring, debugging, test generation, and documentation Experience building or integrating ...

experience Commercial cloud experience with AWS, Azure or GCP Strong automated testing experience, including Jest/Mocha and ideally Cypress, BrowserStack or similar Excellent JavaScript fundamentals Strong communication and problem-solving skills Experience with TypeScript, SaaS/startups, generative AI APIs, creative technology, Unix/Linux or Bash ...

customers to build high-quality solutions using Angular and .NET technologies. Key Skills Required Strong commercial experience with Angular Good knowledge of TypeScript, JavaScript, HTML and CSS Experience integrating with REST APIs Solid .NET/ASP.NET Core experience Experience with automated testing tools such as Playwright, Vitest, Cypress or Jest ...

customers to build high-quality solutions using Angular and .NET technologies. Key Skills Required Strong commercial experience with Angular Good knowledge of TypeScript, JavaScript, HTML and CSS Experience integrating with REST APIs Solid .NET/ASP.NET Core experience Experience with automated testing tools such as Playwright, Vitest, Cypress or Jest ...

following: Dynamics 365 CE/CRM development Plugins, workflows and custom APIs Dynamics 365 configuration and customisation C# .NET Framework/.NET Core JavaScript, TypeScript, HTML and CSS Web APIs and integration services Azure Functions Azure Logic Apps Azure Service Bus Azure API Management Azure DevOps Git source control REST ...

following: Dynamics 365 CE/CRM development Plugins, workflows and custom APIs Dynamics 365 configuration and customisation C# .NET Framework/.NET Core JavaScript, TypeScript, HTML and CSS Web APIs and integration services Azure Functions Azure Logic Apps Azure Service Bus Azure API Management Azure DevOps Git source control REST ...

software solutions. Participate in code reviews and maintain high standards of code quality. Required Skills & Qualifications: Experience with programming languages such as TypeScript, JavaScript, and Python. Interest in modern web development and frameworks such as React and Next.js. Understanding of backend development concepts with frameworks like Node.js, Python (Fast ...

ever the same. Tech stack required ideally: You can expect to work with the following technologies to ensure scalable, high-performance applications: Programming Languages: JavaScript/TypeScript, Java, C# Frameworks: Vue/Angular/React/Node/Next, Spring/Spring Boot, .NET/ASP.NET Cloud platforms ...

across the full SDLC, not limited to test executionExperience 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 approachesExperience using CI/CD pipelines to integrate and run automated testsGood understanding ...

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 ...

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 ...

software 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 in integration ...

Spanner, Cloud SQL and BigQueryDataflow, Apache BeamVertex AI, DialogFlow, Auto MLArchitectureMicroservices patternsEvent-driven architectures and message queuesRelational and non-relational databasesLanguages and frameworksJava 17+, JavaScript, Python, SQLCommon frameworks and APIs such as Spring Boot, Guice, Jersey, Node.js, FlaskKnowledge of JVM, its limitations, weaknesses, and workaroundsBuilding tools such as Maven ...

Spanner, Cloud SQL and BigQueryDataflow, Apache BeamVertex AI, DialogFlow, Auto MLArchitectureMicroservices patternsEvent-driven architectures and message queuesRelational and non-relational databasesLanguages and frameworksJava 17+, JavaScript, Python, SQLCommon frameworks and APIs such as Spring Boot, Guice, Jersey, Node.js, FlaskKnowledge of JVM, its limitations, weaknesses, and workaroundsBuilding tools such as Maven ...

prior endeavors. In addition, the successful candidate should have:3+ years of proven software development experience in relevant industry, with proficiency in C#, JavaScript (React and/or Angular), Typescript, databases (relational and/or NoSQL), and cloud technologies, preferably AWS.Experience with RESTful API design, development, and scalable microservice architecturesAbility ...

plus)Experience with a public cloud provider, GCP is a plusProven experience in software developments with languages such as C#, Java, C++, Golang, Rust, JavaScript, Python, or Ruby (this list is not exhaustive).Experience with observability tools (e.g. Datadog, Prometheus, ELK, Jaeger...)Great team spirit with a problem-solving attitude.A ...

prior endeavors. In addition, the successful candidate should have:* 3+ years of proven software development experience in relevant industry, with proficiency in C#, JavaScript (React and/or Angular), Typescript, databases (relational and/or NoSQL), and cloud technologies, preferably AWS.* Experience with RESTful API design, development, and scalable microservice ...

Spring MVC, REST web services and GIT Version Control • Strong understanding of Java, Spring framework, UI Design & design patterns. • Good understanding of HTML , CSS & JavaScript . • Knowledge of Unix/Linux operating system • Knowledge of CI/CD pipelines, Docker, Kubernetes and DevOps principles. My client is based in London ...

Build RESTful APIs using Flask and FastAPI for internal services and cross team integrations Develop lightweight web based dashboards and interfaces using HTML, CSS, JavaScript and Jinja2 Work with PostgreSQL, MySQL, MongoDB and Redis for application, configuration and testing data Build and maintain Docker and Docker Compose environments for application ...

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 ...

ForExperience as a Software Engineer with strong capability in one or more of the following:Backend development (Java Spring Boot, Maven, Python)Frontend development (JavaScript/TypeScript, React, npm)Proven experience designing, developing, and deploying scalable backend systems.Familiarity with DevOps, CI/CD and containerisation technologies (Jenkins, Kubernetes, Docker ...

Experience as a Software Engineer with strong capability in one or more of the following: Backend development (Java Spring Boot, Maven, Python) Frontend development (JavaScript/TypeScript, React, npm) Proven experience designing, developing, and deploying scalable backend systems. Familiarity with DevOps, CI/CD and containerisation technologies (Jenkins, Kubernetes, Docker ...

ForExperience as a Software Engineer with strong capability in one or more of the following: Backend development (Java Spring Boot, Maven, Python)Frontend development (JavaScript/TypeScript, React, npm)Proven experience designing, developing, and deploying scalable backend systems. Familiarity with DevOps, CI/CD and containerisation technologies (Jenkins, Kubernetes, Docker ...

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 ...