Translating designs and wireframes into high quality code Optimising components for maximum performance across a vast array of web-capable devices and browsers Skills Strong proficiency in JavaScript, including DOM manipulation and the JavaScript objectmodel Experience developing with typescript Thorough understanding of React.js and its core principles Experience with Redux and RTK (RTKQuery also a bonus) Familiarity with RESTful More ❯
Translating designs and wireframes into high quality code Optimising components for maximum performance across a vast array of web-capable devices and browsers Skills Strong proficiency in JavaScript, including DOM manipulation and the JavaScript objectmodel Experience developing with typescript Thorough understanding of React.js and its core principles Experience with Redux and RTK (RTKQuery also a bonus) Familiarity with RESTful More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Matched Group
or Master’s degree in Computer Science, Engineering, or a related field, or equivalent experience. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud message APIs More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Matched Group
or Master’s degree in Computer Science, Engineering, or a related field, or equivalent experience. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud message APIs More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Matched Group
or Master’s degree in Computer Science, Engineering, or a related field, or equivalent experience. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud message APIs More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Matched Group
or Master’s degree in Computer Science, Engineering, or a related field, or equivalent experience. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud message APIs More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Matched Group
or Master’s degree in Computer Science, Engineering, or a related field, or equivalent experience. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud message APIs More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Matched Group
or Master’s degree in Computer Science, Engineering, or a related field, or equivalent experience. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud message APIs More ❯
Bexhill-On-Sea, East Sussex, South East, United Kingdom Hybrid / WFH Options
Hastings Direct
Skills we would love you to have: Hands on experience in agile teams, developing enterprise-level applications. Strong proficiency in JavaScript and ReactJS, including core concepts like JSX, Virtual DOM, and component lifecycle. Experience with React workflows (e.g. Redux, Flux) and tools like Create React App is desirable. Familiarity with RESTful APIs, Java/JVM languages, and relational databases (SQL More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Safe Intelligence
technical requirements for the role are: Must have Strong proficiency in JavaScript/TypeScript-based frontend development, with extensive expertise in React. This includes a deep understanding of the DOM, component design, CSS, and state management. Solid performance and security knowledge: profiling, memoization, code-splitting, tree-shaking, bundle analysis, Core Web Vitals, OAuth2/OIDC, JWT handling, CSRF/XSS More ❯
technical requirements for the role are: Must have Strong proficiency in JavaScript/TypeScript-based frontend development, with extensive expertise in React. This includes a deep understanding of the DOM, component design, CSS, and state management. Solid performance and security knowledge: profiling, memoization, code-splitting, tree-shaking, bundle analysis, Core Web Vitals, OAuth2/OIDC, JWT handling, CSRF/XSS More ❯
london, south east england, united kingdom Hybrid / WFH Options
Safe Intelligence
technical requirements for the role are: Must have Strong proficiency in JavaScript/TypeScript-based frontend development, with extensive expertise in React. This includes a deep understanding of the DOM, component design, CSS, and state management. Solid performance and security knowledge: profiling, memoization, code-splitting, tree-shaking, bundle analysis, Core Web Vitals, OAuth2/OIDC, JWT handling, CSRF/XSS More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Safe Intelligence
technical requirements for the role are: Must have Strong proficiency in JavaScript/TypeScript-based frontend development, with extensive expertise in React. This includes a deep understanding of the DOM, component design, CSS, and state management. Solid performance and security knowledge: profiling, memoization, code-splitting, tree-shaking, bundle analysis, Core Web Vitals, OAuth2/OIDC, JWT handling, CSRF/XSS More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Safe Intelligence
technical requirements for the role are: Must have Strong proficiency in JavaScript/TypeScript-based frontend development, with extensive expertise in React. This includes a deep understanding of the DOM, component design, CSS, and state management. Solid performance and security knowledge: profiling, memoization, code-splitting, tree-shaking, bundle analysis, Core Web Vitals, OAuth2/OIDC, JWT handling, CSRF/XSS More ❯
RESTful APIs ideally with an API-first approach. Some proficiency in JavaScript/TypeScript-based frontend development, with extensive expertise in React. This includes a deep understanding of the DOM, component design, CSS, and state management. Familiarity with Kubernetes-specific platform components and principles , such as load balancers, cluster DNS, autoscalers, API/SDK toolsets, and the operator pattern. Experience More ❯
RESTful APIs ideally with an API-first approach. Some proficiency in JavaScript/TypeScript-based frontend development, with extensive expertise in React. This includes a deep understanding of the DOM, component design, CSS, and state management. Familiarity with Kubernetes-specific platform components and principles , such as load balancers, cluster DNS, autoscalers, API/SDK toolsets, and the operator pattern. Experience More ❯
RESTful APIs ideally with an API-first approach. Some proficiency in JavaScript/TypeScript-based frontend development, with extensive expertise in React. This includes a deep understanding of the DOM, component design, CSS, and state management. Familiarity with Kubernetes-specific platform components and principles , such as load balancers, cluster DNS, autoscalers, API/SDK toolsets, and the operator pattern. Experience More ❯
RESTful APIs ideally with an API-first approach. Some proficiency in JavaScript/TypeScript-based frontend development, with extensive expertise in React. This includes a deep understanding of the DOM, component design, CSS, and state management. Familiarity with Kubernetes-specific platform components and principles , such as load balancers, cluster DNS, autoscalers, API/SDK toolsets, and the operator pattern. Experience More ❯
london (city of london), south east england, united kingdom
Safe Intelligence
RESTful APIs ideally with an API-first approach. Some proficiency in JavaScript/TypeScript-based frontend development, with extensive expertise in React. This includes a deep understanding of the DOM, component design, CSS, and state management. Familiarity with Kubernetes-specific platform components and principles , such as load balancers, cluster DNS, autoscalers, API/SDK toolsets, and the operator pattern. Experience More ❯
advantage. Proven ability to implement and troubleshoot various marketing pixels (e.g. Facebook, LinkedIn) Deep practical expertise in JavaScript, HTML, and other web technologies relevant to tracking implementation (e.g., dataLayer, DOM manipulation) Familiarity with data manipulation and analysis using spreadsheet software (e.g., Google Sheets, Excel) SQL skills are required for debugging and data quality validation purposes. Comprehensive understanding of data privacy More ❯
bradford, yorkshire and the humber, united kingdom
Jaywing
advantage. Proven ability to implement and troubleshoot various marketing pixels (e.g. Facebook, LinkedIn) Deep practical expertise in JavaScript, HTML, and other web technologies relevant to tracking implementation (e.g., dataLayer, DOM manipulation) Familiarity with data manipulation and analysis using spreadsheet software (e.g., Google Sheets, Excel) SQL skills are required for debugging and data quality validation purposes. Comprehensive understanding of data privacy More ❯
in detail the LTI apps you have built. Experience working with LMS platforms such as Canvas, openEdx, Brightspace, or similar. Excellent knowledge of fundamental web technologies: JavaScript, HTML, CSS, DOM and other browser APIs. Backend fluency: Proficient in at least one backend language (e.g., Node.js, Go, or PHP) and solid experience working with REST and GraphQL APIs. Database knowledge: Experience More ❯
in detail the LTI apps you have built. Experience working with LMS platforms such as Canvas, openEdx, Brightspace, or similar. Excellent knowledge of fundamental web technologies: JavaScript, HTML, CSS, DOM and other browser APIs. Backend fluency: Proficient in at least one backend language (e.g., Node.js, Go, or PHP) and solid experience working with REST and GraphQL APIs. Database knowledge: Experience More ❯
united kingdom, united kingdom Hybrid / WFH Options
Jobgether
TypeScript, including the use of advanced types and interfaces for building type-safe applications Strong command of modern JavaScript (ES6+) with deep understanding of async/await, closures, and DOM APIs Proven experience optimizing web performance with modern build tools and techniques (e.g., Vite, tree-shaking, lazy loading) Strong design sensibility with attention to responsive layouts and user experience best More ❯