76 to 100 of 1,068 JavaScript Jobs in London

tools, like Cypress or Playwright. Hands-on experience of building test automation frameworks from scratch. Proficiency in scripting and programming languages such as JavaScript and TypeScript (3+years). Experience testing web applications across multiple browsers and operating systems including mobile. Experience of API testing, ideally using RestAssured or SoapUI. Expertise ...

would like to hear from you. Basic Qualifications Minimum 7 years of relevant professional experience using a modern UI programming language (Javascript/TypeScript) Experience building modern UI products using React Proven ability to lead engineering teams and deliver complex products with multiple stakeholders Experience architecting, designing full stack apps ...

lifecycle patterns. Experience developing agent-driven workflows using frameworks such as LangChain, Google ADK, or similar orchestration frameworks. Experience frontend fundamentals, including HTML, CSS, JavaScript, browser rendering, DOM APIs, and performance tuning. Experience with automated testing withPlaywright, performance testing, code reviews, and CI/CD practices. Experience building secure, scalable ...

Dynamics 365 Customer Engagement (CRM) platform and core technologies. Extensive experience designing, configuring, and supporting Dynamics 365 solutions. Strong development experience using C#, .NET, JavaScript, and TypeScript within Dynamics 365 environments. Hands-on experience developing Plugins, Custom Workflow Activities, Custom APIs, and integrations. Strong understanding of Dataverse architecture, security models ...

Dynamics 365 Customer Engagement (CRM) platform and core technologies. Extensive experience designing, configuring, and supporting Dynamics 365 solutions. Strong development experience using C#, .NET, JavaScript, and TypeScript within Dynamics 365 environments. Hands-on experience developing Plugins, Custom Workflow Activities, Custom APIs, and integrations. Strong understanding of Dataverse architecture, security models ...

Actions, Azure DevOps, GitLab). Cloud and edge hosting: GCP , Vercel , AWS, Azure, Netlify and related deployment models. Front‐end integration literacy: HTML, CSS, JavaScript and Next.js + React ; mobile technologies (SwiftUI, Kotlin, Flutter or React Native) advantageous. CMS, DXPs, MarTech and SaaS integration in complex enterprise landscapes; including headless ...

GitHub Actions, Azure DevOps, GitLab).Cloud and edge hosting: GCP, Vercel, AWS, Azure, Netlify and related deployment models. Front-end integration literacy: HTML, CSS, JavaScript and Next.js + React; mobile technologies (SwiftUI, Kotlin, Flutter or React Native) advantageous. CMS, DXPs, MarTech and SaaS integration in complex enterprise landscapes; including headless ...

Jenkins, CircleCI, GitLab CI, Azure DevOps) Knowledge of integration testing and automation frameworks A technical development background with coding skills in Java, C#, TypeScript, JavaScript, or similar Eligibility for Security Clearance We’re on the lookout for passionate, talented individuals who are ready to make an impact. Whether ...

stack experience within an agile team building enterprise‐grade web applications or backend services Java development with Spring Boot Front‐end development using modern JavaScript frameworks (e.g., React, Vue) Experience with cloud platforms such as AWS or Azure Containerisation and orchestration using Docker and Kubernetes Infrastructure as Code (Terraform, Ansible ...

processes working alongside the business lead Implementing automated regression testing for the software developed Skills and Experience: Excellent working knowledge of ASP.NET, C#, HTML, JavaScript, jQuery, React Framework, MS SQL Server, Mongo DB, Elasticsearch Understanding of SOLID development principles Worked previously on projects using the Umbraco CMS Continuous Delivery skills ...

TeamCity etcAgile developmentSoftware life cycleNice to have SkillsFixed Income product knowledgeExperience configuring continuous integration and continuous delivery toolsAn awareness ofunderstanding of one or more javascript single page application frameworkExperience using AWS platformQualities SkillsEnergetic motivated and determinedPragmatic and resultsorientedAdaptable to diverse set of technical responsibilitiesExcellent analytical and problem solving skillsProductive ...

experience or a strong foundational knowledge of Rust , particularly in building concurrent, memory-safe, and high-performance applications. Frontend Knowledge: Experience working with modern JavaScript/TypeScript frameworks (e.g., React, Vue, or Next.js) and a solid understanding of web fundamentals (HTML/CSS). Database Expertise: Deep knowledge of relational ...

internal systems, websites, APIs, integrations, automation, and other technology projects. Required Skills & Qualifications: Familiarity with at least one programming language such as PHP, Python, JavaScript/Node.js, C#, Java, or similar. Basic knowledge of HTML, CSS, and JavaScript. Basic understanding of databases and SQL. An understanding of APIs ...

will bring Strong hands-on experience with Power Platform, Dataverse, Model-Driven Apps and Dynamics 365 Customer Service. Proven skills in PCF, React, TypeScript, JavaScript, C# and .NET/ASP.NET Core. Experience with Power Automate, Dataverse Web API, REST APIs and external-system integration. Practical knowledge of Azure services such ...

performance, cost and delivery timelinesBuild and optimise systems for performance, scalability and reliabilityRequirements: Proficiency in at least one programming language (for example Python, C#, JavaScript, Kotlin, Java or Go)Experience with Gen AI tools (such as LangGraph, CrewAI, Hugging Face or OpenAI APIs) and ML frameworks like PyTorch or TensorFlowStrong ...

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 ...

/C# RESTful API development AWS, including Lambda and API Gateway SQL Server (T-SQL, Stored Procedures and Views) HTML5, CSS, LESS and SASS JavaScript and jQuery Experience working with server-side MVC applications. Understanding of responsive design, accessibility, and web performance best practices. Experience developing HTML email templates. Strong ...

Experience You will have experience in one or more of the following areas but you do not need experience in everything listed: Java, Python, JavaScript, TypeScript Angular, React, Vue Docker, Kubernetes AWS and/or Azure MERN stack Elasticsearch, Neo4J We value engineers who are open-minded, adaptable, and keen ...

guidance, code reviews and mentoring to other engineers. You should have: Strong commercial experience with Python for backend and integration development. Strong TypeScript/JavaScript and React experience building production applications. Strong API design experience, including REST and/or GraphQL, authentication, authorisation, versioning and streaming. Hands-on experience with ...

guidance, code reviews and mentoring to other engineers. You should have: Strong commercial experience with Python for backend and integration development. Strong TypeScript/JavaScript and React experience building production applications. Strong API design experience, including REST and/or GraphQL, authentication, authorisation, versioning and streaming. Hands-on experience with ...

applied experience Hands-on practical experience in system design, application development, testing, and operational stability Proficiency in modern programming languages, with strong experience in JavaScript/TypeScript (React, Node.js) required Experience developing, debugging, and maintaining code in a large-scale environment using modern programming and database querying languages Solid understanding ...

expertise in Java and Spring Boot. Experience designing and developing microservices architectures. Strong understanding of RESTful API development and integration. Proven experience with React, JavaScript/TypeScript and modern front-end development practices. Experience working with SQL and large-scale relational databases. Knowledge of messaging technologies and distributed systems. Familiarity ...

product lifecycle ownership (build, test, deploy, monitor, iterate); growth mindset with continuous learning and knowledge sharing. Code: Java 17/21 (Spring, Maven), Groovy, JavaScript/TypeScript (Angular) Testing: JUnit, Spock Deployment: Private Cloud (VMs/containers) Tooling: GitLab (git and CI/CD), IntelliJ, Windsurf, Docker, Splunk, AppDynamics ...

product lifecycle ownership (build, test, deploy, monitor, iterate) growth mindset with continuous learning and knowledge sharing. Code: Java 17/21 (Spring, Maven), Groovy, JavaScript/TypeScript (Angular) Testing: JUnit, Spock Deployment: Private Cloud (VMs/containers) Tooling: GitLab (git and CI/CD), IntelliJ, Windsurf, Docker, Splunk, AppDynamics ...

product lifecycle ownership (build, test, deploy, monitor, iterate); growth mindset with continuous learning and knowledge sharing. Code: Java 17/21 (Spring, Maven), Groovy, JavaScript/TypeScript (Angular)Testing: JUnit, SpockDeployment: Private Cloud (VMs/containers)Tooling: GitLab (git and CI/CD), IntelliJ, Windsurf, Docker, Splunk, AppDynamicsAt ...