1 to 25 of 26 Part-Time JavaScript Jobs in London

reviews, and continuous delivery.\n \n\n \n Key Skills/Experience: \n \n \nProven experience in Node.js development \n \n \nStrong knowledge of JavaScript (ES6+), asynchronous programming, and event-driven architecture.\n \n \nExperience with building and maintaining RESTful APIs.\n \n \nSolid understanding of SQL and NoSQL databases ...

clients you’ve served \n Written production-quality code using a variety of languages and frameworks, including but not limited to: Python, Java, JavaScript, TypeScript, React, Ruby, Scala, R, SQL, and Go \n Leveraged AI-assistive development tools for tasks like scaffolding, refactoring, debugging, test generation, and documentation \n Experience ...

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 ...

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 ...

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 ...

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 ...

Strong, hands on experience with Swift, which is essential for this role \n Experience working with modern languages and frameworks such as TypeScript, JavaScript, Node.js, and Angular \n Deep understanding of software architecture principles, patterns, and design methodologies \n Experience with cloud platforms such as Azure ...

ownership (build, test, deploy, monitor, iterate); growth mindset with continuous learning and knowledge sharing.\n \n \nCode: Java 17/21 (Spring, Maven), Groovy, JavaScript/TypeScript (Angular)\n \n \nTesting: JUnit, Spock\n \n \nDeployment: Private Cloud (VMs/containers)\n \n \nTooling: GitLab (git and CI/ ...

understand the business domain and translate product strategy into technical solutions. \n Working knowledge of Groovy with Spock preferred. \n Working knowledge of JavaScript/TypeScript and Angular 15+ preferred. \n\n At BNY, our culture speaks for itself, check out the latest BNY news at: \n BNY Newsroom ...

senior or principal level in software engineering • Strong hands-on experience with modern programming languages such as TypeScript, C++, or similar • Experience with JavaScript ecosystems, Node.js, and Angular • Deep understanding of software architecture, microservices, and distributed systems • Experience working with cloud platforms such as Azure, AWS, or GCP • Familiarity with ...

nStrong database and data modeling expertise, including design, optimization, and best practices. \n \n\n \n \nStrong proficiency in modern development stacks (e.g., JavaScript/TypeScript, C#, .NET, Angular and/or React). \n \n\n \n \nWorking knowledge of AI trends and practical ways AI can improve development ...

code quality, security, correctness, and maintainability.\n \n\n Requirements: \n \n \nProficiency in development languages, including but not limited to: Python, C#, .NET, JavaScript, TypeScript, React, and Angular.\n \n \nProficiency in at least one agentic development tool, including but not limited to: GitHub Copilot, OpenAI Codex, Claude Code ...

experience in software engineering, specifically focused on developing and delivering modern web applications, APIs, and scalable platforms \n\n \n Proficient in either JavaScript and Python, with a proven track record of delivering high-quality, maintainable code and leveraging both languages to solve complex technical challenges \n\n \n Excellent ...

hands-on experience in software engineering, specifically focused on developing and delivering modern web applications, APIs, and scalable platforms. \n\n \n Proficiency in JavaScript and Python, with a proven track record of delivering high-quality, maintainable code and leveraging both languages to solve complex technical challenges. ...

with GTest/CPP test, experience in writing regression test \n Experience/Interest in Web development with basic knowledge of HTML, CSS and JavaScript \n Strong in data structures and problem solving \n\n \n Good to Have: \n \n Knowledge of REST APIs creation with C++ with Yaml ...

documentation of prototype capabilities \n\n What you’ll need: \n \n Strong software development skills with proficiency in multiple programming languages (Python, JavaScript/TypeScript, etc.) \n Hands-on experience with machine learning frameworks (PyTorch, TensorFlow, or similar) \n Extensive daily use of generative AI tools for coding (Claude ...

experience of using digital data - ideally Optimizely or a similar enterprise optimisation platform. \n · \n Data processing for customer segmentation: SQL is highly desirable, Javascript including Node.js or Python would be an advantage. \n · \n Practical experience of using data visualisation tools such as Looker and Tableau \n · \n Enjoys ...

Familiarity with financial terminology \n Knowledge of Americans with Disabilities Act Standards for Accessible Design and WCAG \n Working knowledge of HTML, CSS, and JavaScript \n\n ABOUT US \n J.P. Morgan is a global leader in financial services, providing strategic advice and products to the world's most prominent ...

complexity, make evidence-based decisions and drive continuous improvement.\n \n \nCorporate Actions domain experience is strongly preferred.\n \n \nGroovy/Spock and JavaScript/TypeScript with Angular for full-stack contexts preferred\n \n \nFinancial services background with risk and controls in regulated environments preferred … ownership (build, test, deploy, monitor, iterate); growth mindset with continuous learning and knowledge sharing.\n \n \nCode: Java 17/21 (Spring, Maven), Groovy, JavaScript/TypeScript (Angular)\n \n \nTesting: JUnit, Spock\n \n \nArchitecture: Microservices\n \n \nDeployment: Private Cloud (VMs/containers)\n \n \nTooling: GitLab ...

proficiency in React and its core principles. \n Solid grasp of Web fundamentals:\n \n HTML5 (Semantics & Structure) \n CSS (Responsive Design, Specificity) \n JavaScript ES6 \n General Networking ( IP & DNS, Caching) \n\n\n Proficient with Chrome Developer Tools or browser equivalent. \n Experience with version control tools … with Node.js \n Worked with GraphQL APIs \n Feature flagging/AB testing \n Appreciation/Exposure to React Native \n Knowledge of other JavaScript frameworks like Angular, Vue, Next.js, Gatsby. \n Familiarity with agile methodologies beyond Scrum. \n Delivery experience on cloud platforms and familiarity with AWS \n Experience ...

will be responsible for will have a global reach, impacting millions of customers. \n \n Some of the tech we are using at scale: Javascript, Typescript, Node.JS, GraphQL, REST, Kafka, Azure Cloud, Redis, Varnish Cache, Apollo Federation, Docker, Kubernetes etc. \n \n About the team \n Tesco’s xAPI (Experience … right thing” mentality \n ⁃ We promote flexible working \n \n Job Responsibilities \n \n • Use your in-depth knowledge of JavaScript, Typescript, Node.JS, cloud and the backend services ecosystem to develop, and deploy scalable backend systems. \n • Work with product managers to understand business/product requirements. \n • Translate requirements ...

perform root cause analysis and continuously improve reliability, quality and speed of delivery. \n Build and maintain web-based user interfaces using React.js, modern JavaScript/TypeScript, HTML and CSS, enabling colleagues to interact effectively with data and AI based tools. \n Technical Excellence: Promote strong software engineering practices across … applications (e.g. copilots, assistants, agent based workflows), with a focus on reliability and real user impact. \n Good working knowledge of React.js and modern JavaScript/TypeScript, with experience building and maintaining production web interfaces. \n Proficiency with HTML and CSS, and an understanding of usability, accessibility and performance considerations. ...

Drive continuous improvement initiatives to enhance development processes and workflows. \n\n Required qualifications, capabilities and skills \n \n Formal training or certification on JavaScript concepts and proficient advanced experience \n Strong knowledge of JavaScript, TypeScript, and ES6+ syntax \n Ability to write testable, clean JavaScript code \n Familiarity with … skills in English \n\n Preferred qualifications, capabilities and skills \n \n \nProficiency in React framework & \nBuilding applications using React Native in TypeScript or JavaScript\n \n Native application development across Android/iOS in Kotlin/Swift \n Understanding of REST APIs and GraphQL \n \nComfortable working with projects ...

Drive continuous improvement initiatives to enhance development processes and workflows. \n\n Required qualifications, capabilities, and skills \n \n Formal training or certification on JavaScript concepts and 5+ years applied experience \n\n \n Strong knowledge of JavaScript, TypeScript, and ES6+ syntax \n\n \n Ability to write testable, clean … JavaScript code \n\n \n Familiarity with writing unit tests \n\n \n Ability to work in a dynamic, agile environment within a geographically distributed team \n\n \n Ability to focus on promptly addressing customer needs \n\n \n Excellent written and verbal communication skills in English ...