26 to 50 of 341 ECMAScript Jobs in London

Strong expertise in designing large-scale machine learning systems and architectures Advanced programming skills (Python preferred) with experience in frameworks and tools such as JavaScript, Kafka, and reactive systems Extensive experience with cloud-based development, particularly on Azure, including AI/ML services and data platforms Proven experience with Kubernetes ...

Proficiency in performance testing tools like JMeter, Gatling, K6, Neoload, or Webload Strong coding skills in at least one language such as Java, TypeScript JavaScript, Python, C#, Scala, or PHP Experience designing and building automation frameworks Familiarity with Agile development environments ( SCRUM, Kanban, TDD, BDD ) Implementing pipelines using common tooling ...

understanding the business domain and translating product strategy into architecture and delivery plans. \n Corporate Actions domain experience strongly preferred. \n Experience with JavaScript/TypeScript and Angular for full-stack development contexts preferred. \n Expertise in Spring Framework, software architecture, and API/platform design preferred. \n Background ...

training or certification in software engineering concepts \n Hands-on experience in system design, application development, testing, and operational stability \n Proficiency coding with JavaScript and using front-end UI frameworks such as React or Angular \n Experience building ASP.NET MVC, Web API, or REST style applications \n Proficiency coding ...

teams. Dedication to understanding the business domain and translating product strategy into architecture and delivery plans. Corporate Actions domain experience strongly preferred. Experience with JavaScript/TypeScript and Angular for full-stack development contexts preferred. Expertise in Spring Framework, software architecture, and API/platform design preferred. Background in financial ...

teams.\ NDedication to understanding the business domain and translating product strategy into architecture and delivery plans.\ NCorporate Actions domain experience strongly preferred.\ NExperience with JavaScript/TypeScript and Angular for full-stack development contexts preferred.\ NExpertise in Spring Framework, software architecture, and API/platform design preferred.\ NBackground in financial ...

Skills: Formal training or certification in software engineering concepts Hands-on experience in system design, application development, testing, and operational stability Proficiency coding with JavaScript and using front-end UI frameworks such as React or Angular Experience building ASP.NET MVC, Web API, or REST style applications Proficiency coding in C# ...

nFormal training or certification in software engineering concepts\ NHands-on experience in system design, application development, testing, and operational stability\ NProficiency coding with JavaScript and using front-end UI frameworks such as React or Angular\ NExperience building ASP.NET MVC, Web API, or REST style applications\ NProficiency coding in C# with ...

Bring Strong hands-on software engineering experience with .NET/C# and Microsoft Azure Ability to work across multiple technologies and frameworks, including React, JavaScript and TypeScript Experience building secure, scalable, event-driven and distributed systems Knowledge of CI/CD, DevOps practices, and Infrastructure as Code Excellent stakeholder ...

team Required Skills & Experience - Strong experience building enterprise and web-based applications - Proficiency in C#, .NET/ASP.NET - Front-end skills including HTML5, CSS3, JavaScript - Experience with REST APIs, JSON - Familiarity with Git and modern development tools (e.g. Visual Studio) Desirable Skills - .NET Core/.NET 5+ - Angular, Blazor ...

Develop and maintain E-commerce ticketing platform, including API connectivity with third-party suppliers Must have skills and competencies: Proficiency in Front end: React, JavaScript (Webpack, Jest), Next.js, HTML, CSS, Vite Proficiency in Back end: Node.js, SQL, PostgreSQL, Supabase, Python Proficiency in Development: Git, GitHub, Agile, Vercel; experience integrating third ...

microservices, event-driven), with experience in system design and modelling (e.g., UML, C4) Proficient in one or more languages such as C#, Python, or JavaScript/TypeScript Hands-on experience with AWS (and/or Azure, GCP), focusing on scalability, resilience, and cost efficiency Familiar with DevOps & CI/ ...

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 ...

documentation, and testing. \n\n Required Qualifications, Capabilities, and Skills: \n \n Formal training or certification in software engineering. \n Expertise in HTML, CSS, JavaScript, React, TypeScript, and state management. \n Experience optimizing and debugging performance and memory issues in web applications. \n Strong communication and collaboration skills with cross ...

code generation, refactoring, debugging, documentation, and testing. Required Qualifications, Capabilities, and Skills: Formal training or certification in software engineering. Expertise in HTML, CSS, JavaScript, React, TypeScript, and state management. Experience optimizing and debugging performance and memory issues in web applications. Strong communication and collaboration skills with cross-functional teams. Familiarity ...

front end frameworks (Angular, React, other similar) \n Spring framework or Jax-RS, Jax-WS, JPA \n Knowledge of selected front end technologies (HTML, JavaScript, CSS) \n Rest, Hibernate, Docker, Terraform, GitHub, Jenkins, development and deployment in a cloud environment \n SQL \n TDD/BDD \n Experience of working ...

knowledge of front end frameworks (Angular, React, other similar) Spring framework or Jax-RS, Jax-WS, JPA Knowledge of selected front end technologies (HTML, JavaScript, CSS) Rest, Hibernate, Docker, Terraform, GitHub, Jenkins, development and deployment in a cloud environment SQL TDD/BDD Experience of working with cloud infrastructure (Azure ...

NExperience with GraphQL\ NExperience with Node.Js\ NWorked with GraphQL APIs\ NFeature flagging/AB testing\ NAppreciation/Exposure to React Native\ NKnowledge of other JavaScript frameworks like Angular, Vue, Next.Js, Gatsby.\ NFamiliarity with agile methodologies beyond Scrum.\ NDelivery experience on cloud platforms and familiarity with AWS\ NExperience with Design systems ...

delivery of production-grade software 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 \n Actively experimented with AI development tools and translated that experimentation into faster, higher-quality delivery for your teams ...

delivery of production-grade software 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 Actively experimented with AI development tools and translated that experimentation into faster, higher-quality delivery for your teams ...

delivery of production-grade software 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\ NActively experimented with AI development tools and translated that experimentation into faster, higher-quality delivery for your teams ...

London) Overview SC Cleared freelancer needed with a frontend focus to build modern, scalable web applications, with some backend/API work. Tech & Skills JavaScript/TypeScript, React/Angular/Vue Node.js, REST/GraphQL APIs HTML, CSS, responsive & accessible design Testing (Jest/Cypress), CI/ ...

SENIOR SOFTWARE ENGINEER TO HAVE. Current enhanced DV clearance Experience with at least one or more of the following: Java, Python, C++, .NET, C#, JavaScript, React Experience mentoring juniors or leading a team Experience/Knowledge of automation IT WOULD BE NICE FOR THE SENIOR SOFTWARE ENGINEER TO HAVE. Cloud ...

based environments Strong focus on automation and continuous improvement Good collaboration and problem-solving skills Technical Experience (some of): Programming/scripting (Python, Java, JavaScript, etc.) CI/CD tools (GitLab, Jenkins) IaC (Terraform, Ansible) Containers (Docker, Kubernetes) Cloud (AWS, Azure, GCP) Observability (Prometheus, Grafana, ELK) Git/source control ...

Skills & Experience 3–5 years' software development experience Strong Python development skills with FastAPI, Flask or Django Experience building full-stack applications using React, JavaScript/TypeScript and Node.js Knowledge of GitHub, CI/CD, automated testing and Agile delivery methodologies Databricks experience highly desirable, including Lakehouse architecture and Delta ...