26 to 50 of 302 ECMAScript Jobs in London

quality assurance engineer, software tester, or similar role with expertise in manual and automated testing. Proficiency in programming languages like Python, or JavaScript/TypeScript to build and run automated test scripts. Strong knowledge of software testing methodologies, tools (Selenium, JUnit, TestNG), and frameworks. Experience with bug tracking and project ...

move forward. Step 2 - Online Training The second step includes a selection of more advanced courses to get you up to speed. React-js JavaScript JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. ...

move forward. Step 2 - Online Training The second step includes a selection of more advanced courses to get you up to speed. React-js JavaScript JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. ...

move forward. Step 2 - Online Training The second step includes a selection of more advanced courses to get you up to speed. React-js JavaScript JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. ...

Skills Backend: Strong experience in Java , Spring Boot, and Microservices Knowledge of REST APIs, security (JWT, OAuth), and database design Frontend: Proficiency in React.js , JavaScript (ES6+), HTML, CSS Experience with state management (Redux or similar) Cloud & DevOps: Experience with Docker and Kubernetes Hands-on with Terraform or CloudFormation Familiarity with ...

Dynatrace Data persistence and storage using a mix of relational and NoSQL technologies, including SQL Server and MongoDB Frontend applications built with contemporary JavaScript frameworks and languages such as React , Next.js , Angular , and TypeScript In-memory data grids and caching solutions leveraging technologies like Redis and Ignite If of interest ...

engineers through reviews and technical guidance Collaborate with product and operations to deliver practical solutions Improve system performance, reliability, and developer workflows Front-end JavaScript/TypeScript Vue/Nuxt or similar REST API integration Solid CSS/SCSS/SASS State management and component-based development Unit/ ...

3+ years’ experience building applications with C#, SQL and React 2+ years’ experience developing or supporting SharePoint systems Strong front-end skills (HTML, CSS, JavaScript) Experience working in agile delivery environments Exposure to regulated industries (financial services preferred) Strong communication skills and stakeholder management ability Key Benefits: Work ...

automation using Java or Kotlin. • Hands‐on use of AI tools to enhance productivity. • A deep understanding of OOP principles. • Proficiency in HTML, CSS, JavaScript, and modern web architecture. • Strong API testing capability using tools such as RestAssured, Feign, Swagger, or Postman. • Experience writing UI tests with Selenium, Selenide ...

Software Developer 2+ years of proven management experience Strong experience with React and modern frontend development Backend development experience (Java preferred) Solid knowledge of JavaScript, HTML, and CSS Experience working with PostgreSQL databases Experience using Git in a collaborative development environment Ability to communicate technical concepts clearly to non-technical ...

enjoys solving complex problems and helping teams succeed. You likely bring: Strong development experience in PHP Experience with related technologies such as TypeScript, React, JavaScript, or Python Hands-on experience working with AWS and Infrastructure as Code (Terraform, CDK, or CloudFormation) Deep understanding of MySQL and relational database performance optimisation ...

hands- on Front End Developer Applied knowledge of front end frameworks (Angular, React, other similar) Knowledge of selected front end technologies (HTML, JavaScript, CSS) Ability to communicate your design, both verbally and in written form Experience of working with cloud infrastructure (Azure or AWS, GCP is beneficial) Ability to work ...

move forward. Step 2 - Online Training The second step includes a selection of more advanced courses to get you up to speed. React-js JavaScript JavaScript forms the foundation of almost everything you see on the Internet, so it will be essential! Python is highly versatile. ...

digitalexperts,scientists,engineers,andtechnologists.Andhaveadeepexpertiseinanumberofareasnotlimitedtobutincludingconsumerandmanufacturing,defencefinancialservicesandtransport.WithteamsthatoperategloballyfromofficesacrosstheUK,Ireland,theUS,Nordics,andNetherlands. JobDescription WhyconsiderjoiningtheDigital&Datacommunity Growaflexibleanduniquecareerwithinatrust-basedenvironmentthatvaluesexcellence,innovation,andcuriosity.Youhavetheoptiontoprogresswithusonatechnicalcareertrack.NoneedtogoontothePartnercareertrackifthisdoesntalignwithwhatyouwanttodo. Workonabroadvarietyofprojectsandtechstacksforclientsacrosssevensectors-noprojectiseverthesame Techstackrequiredideally: Whileweadvocateforusingtherighttechfortherighttask,youcanexpecttoworkwiththefollowingtechnologiestoensurescalable,high-performanceapplications: ProgrammingLanguages:JavaScript/TypeScript,Java,C# Frameworks:Vue/Angular/React/Node/Next,Spring/SpringBoot,.NET/ASP.NET Cloudplatforms:AWS,GCP,Azure ...

Building resilient, scalable services within secure environments Tech stack includes: Java | React | PostgreSQL | Kafka | ElasticSearch | AWS | Ansible | REST APIs | Docker | API Gateways | JavaScript | MongoDB | SQL What we're looking for: Strong commercial experience as a Java Full-Stack Developer Experience delivering solutions within secure or government environments Comfortable working ...

between product and real-world use, ensuring solutions deliver meaningful impact. Requirements: Strong programming skills in either: Backend: Python, C++, Java, Rust OR frontend: JavaScript/TypeScript (React, Angular, etc.) Strong communication skills and ability to work directly with users Willingness to travel Right to work in the UK Willingness ...

migrating SharePoint 2016 on-premise environments to SharePoint SE and/or SharePoint Online. - Proven expertise in SharePoint Framework (SPFx) development. - Proficiency in TypeScript, JavaScript, React, HTML5, CSS3, and modern front-end development practices. - Strong experience integrating SharePoint solutions using RESTful APIs and Microsoft Graph. - Solid experience with C# ...

candidates usually fall down on their lack of skills with LogicApps this is essential Good, hardened Full Stack Development skills within C#, .NET, React, JavaScript, HTML/CSS, Azure PaaS (Azure Functions, Azure Logic Apps, Cosmos DB, Azure App Service, ARM/Bicep templates), SharePoint Acceptance that Development ...

workflows and reporting systems. The ideal candidate will have strong commercial experience developing backend systems using Python and building modern APIs. Experience with React, JavaScript or TypeScript, AWS cloud services, and SQL databases is essential. Experience building automation tools, working with large datasets, or integrating with Microsoft Office workflows would ...

platform that connects both traditional and on‐chain financial services Must‐have experience: Strong backend engineering background with deep coding experience Professional experience with JavaScript/TypeScript (Node.js) and/or Golang Solid understanding of microservices, event‐driven systems & distributed architecture Strong knowledge of PostgreSQL and/or Redis Understanding ...

code reviews Senior Application Specialist – Key Skills Required Strong full-stack development background within LAMP environments 5+ years PHP experience (Laravel strongly preferred) Strong JavaScript, HTML and CSS skills Experience building scalable, secure and highly available systems REST and SOAP API integration experience Test Driven Development (TDD) and PHPUnit Docker ...

continuous learning. Senior Software Engineer Requirements: 5+ years of software engineering experience working within high-scale, product-led environments. Expertise in TypeScript/JavaScript and strong experience with Node.js. Cloud Native Specialist: Deep knowledge of AWS, particularly serverless technologies (Lambda, DynamoDB) and event-based services. Security Mindset: A solid understanding ...

solving skills Experience collaborating with technical stakeholders such as researchers or data scientists Desirable Experience Experience with languages such as C++, C#, Rust, or JavaScript Experience building microservices or distributed systems Linux experience including debugging services and working with system logs Exposure to trading systems, market data, or systematic trading ...

using Azure Functions, Logic Apps, Service Bus, and REST APIs . Solid understanding of Dataverse architecture and data modelling . Experience with C#, .NET, JavaScript, and Dynamics 365 customisation and configuration . Proven experience working in Solution Architect or Technical Architect roles . Strong understanding of enterprise architecture principles ...

problems, bridging the gap between a beautiful UI and a robust, scalable backend. What You Bring to the Table React Node/TypeScript/JavaScript Cloud: AWS, Azure, or GCP. APIs: API design and integration (REST & GraphQL). AI Tooling: Confident using AI-boosted environments to ensure quality (Claude ...