frontend best practices in areas such as performance optimization, code quality, testing (React Testing Library, Jest, etc.), accessibility, and maintainability. Drive improvements and innovation in ourfrontend architecture, tooling (NPM, Webpack, Vite), and development processes. Technologies We Use Languages & Frameworks: JavaScript (ES6+), TypeScript, React, Next.js, Redux, HTML5, CSS3/SCSS Testing: React Testing Library, Jest, Cypress (or similar) Build & Tooling: NPM … Webpack, Vite (or similar modernbundlers), Babel DevOps & Tools: AWS (S3, CloudFront, etc.), GitlabCI/CD, Git Backend Interaction: RESTful APIs (from Grails/Java services) Qualifications Must haves: 5-7+ years of proven track record in frontend development, with a strongportfolio of building complex, scalable web applications using JavaScript, CSS, and HTML. Expert-level experience with React, Next.js, and … technical design discussions, collaborate effectively with UI/UX, andtranslate complex requirements into technically feasible and elegant designs. Deep experience setting up, configuring, and optimizing modern JavaScript applicationtooling (NPM, Webpack, Babel, linters, etc.). Strong experience and passion for working with ourevolving stack and tools, including modern JavaScript/TypeScript and frontend frameworks. Proven ability to quickly learn and masternew More ❯
adopting new technologies to improve UX/UI Desirable: Familiarity with Tailwind CSS or Material-UI Version control expertise with Git and collaborative workflows Knowledge of build tools (e.g., Webpack, Vite) Understanding of UI/UX principles to enhance usability and aesthetics Experience with Node.js and cloud-based infrastructure Ability to build dynamic dashboards and complex interactive UIs Familiarity with … preprocessors (Sass, LESS) and build tools (Webpack, Gulp) Experience with testing frameworks like Jest or Mocha Strong skills in optimizing front-end performance Success Metrics Deliver high-quality, responsive UI components that elevate the overall user experience Maintain a clean, efficient, and high-performing front-end codebase with minimal bugs Collaborate effectively across design, front-end, and back-end teams More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Futuria
adopting new technologies to improve UX/UI Desirable: Familiarity with Tailwind CSS or Material-UI Version control expertise with Git and collaborative workflows Knowledge of build tools (e.g., Webpack, Vite) Understanding of UI/UX principles to enhance usability and aesthetics Experience with Node.js and cloud-based infrastructure Ability to build dynamic dashboards and complex interactive UIs Familiarity with … preprocessors (Sass, LESS) and build tools (Webpack, Gulp) Experience with testing frameworks like Jest or Mocha Strong skills in optimizing front-end performance Success Metrics Deliver high-quality, responsive UI components that elevate the overall user experience Maintain a clean, efficient, and high-performing front-end codebase with minimal bugs Collaborate effectively across design, front-end, and back-end teams More ❯
Kubernetes Front-end skills Experience of using at least one of these JavaScript frameworks to create modern front-ends - React.js, Angular or Vue HTML, CSS, JavaScript (ES6) or TypeScript Webpack or Gulp A client-side Unit Testing framework e.g., Mocha or Jest Other technical skills API Management and Documentation (Swagger.io, I/O Docs) Experience with high scale, highly transactional More ❯
mechanisms, such as JSON Web Token Familiarity with modern front-end build pipelines and tools (Github actions a bonus) Experience with common front-end development tools such as Babel, Webpack, NPM, etc. Ability to understand business requirements and translate them into technical requirements A knack for benchmarking and optimization Familiarity with git Experience with React Native is a bonus ****THIS More ❯
Ability to quickly implement solutions from idea to release Technology Stack These are the key technologies you will use: Languages/frameworks : Vue.js, JavaScript, HTML/CSS/LeSS, Webpack Environment: Google Cloud Platform, Linux, Git, JIRA How we'll take care of you: Competitive Salary Brilliant Pension Contributions Investment in your Development: Alongside in-house training, you'll be More ❯
UI Libraries such as Material UI or Ant Design. CSS pre-processors such as SASS and LESS Testing frameworks e.g. Jest Performance profiling and optimisation Build tools such as Webpack Code quality and governance tools such as Sonarqube. Responsive design and cross-browser compatibility Version control systems such as git i.e. gitlabs Agile development methodologies i.e. Scrum Please apply for More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Stanford Black Limited
strategic UI architecture development Ensure our credit trading platforms meet all security and audit compliance requirements Experience Required Proficiency in TypeScript, JavaScript Development tools: Jira, Confluence, Git, NPM, Yarn, Webpack CI/CD experience with TeamCity/Jenkins, Artifactory Strong background in Agile/DevOps environments Proven experience working within development teams Excellent UI/UX design and analytical skills More ❯
strategic UI architecture development Ensure our credit trading platforms meet all security and audit compliance requirements Experience Required Proficiency in TypeScript, JavaScript Development tools: Jira, Confluence, Git, NPM, Yarn, Webpack CI/CD experience with TeamCity/Jenkins, Artifactory Strong background in Agile/DevOps environments Proven experience working within development teams Excellent UI/UX design and analytical skills More ❯
South East London, England, United Kingdom Hybrid / WFH Options
Stanford Black Limited
strategic UI architecture development Ensure our credit trading platforms meet all security and audit compliance requirements Experience Required Proficiency in TypeScript, JavaScript Development tools: Jira, Confluence, Git, NPM, Yarn, Webpack CI/CD experience with TeamCity/Jenkins, Artifactory Strong background in Agile/DevOps environments Proven experience working within development teams Excellent UI/UX design and analytical skills More ❯
Capable of developing and implementing unit tests for code components and complete applications. · Proficient in English, both spoken and written. Must Have Skills · Javascript · Angular · Node.js · HTML & CSS · Git · WebpackMore ❯
Capable of developing and implementing unit tests for code components and complete applications. · Proficient in English, both spoken and written. Must Have Skills · Javascript · Angular · Node.js · HTML & CSS · Git · WebpackMore ❯
performant backend services, with a thorough understanding of asynchronous programming patterns, event-loop mechanics, and Node.js internals. Demonstrable hands-on experience using modern front-end build tools and bundlers (Webpack, Rollup, Vite). Comprehensive experience with modern testing tools and frameworks, such as Jest, Vitest, React Testing Library, Playwright, or Cypress, including writing robust unit, integration, and end-to-end More ❯
performant backend services, with a thorough understanding of asynchronous programming patterns, event-loop mechanics, and Node.js internals. Demonstrable hands-on experience using modern front-end build tools and bundlers (Webpack, Rollup, Vite). Comprehensive experience with modern testing tools and frameworks, such as Jest, Vitest, React Testing Library, Playwright, or Cypress, including writing robust unit, integration, and end-to-end More ❯
front-end systems What You Bring Bachelor's degree in Computer Science or closely related field Strong experience with React, TypeScript, JavaScript, HTML/CSS, NodeJS Knowledge of Git, Webpack, Jenkins, and Agile workflows Experience in financial services or trading systems (preferred) Strong problem-solving and UI/UX skills This opportunity offers a competitive compensation package and hybrid working More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Radley James
front-end systems What You Bring Bachelor's degree in Computer Science or closely related field Strong experience with React, TypeScript, JavaScript, HTML/CSS, NodeJS Knowledge of Git, Webpack, Jenkins, and Agile workflows Experience in financial services or trading systems (preferred) Strong problem-solving and UI/UX skills This opportunity offers a competitive compensation package and hybrid working More ❯
South East London, England, United Kingdom Hybrid / WFH Options
Radley James
front-end systems What You Bring Bachelor's degree in Computer Science or closely related field Strong experience with React, TypeScript, JavaScript, HTML/CSS, NodeJS Knowledge of Git, Webpack, Jenkins, and Agile workflows Experience in financial services or trading systems (preferred) Strong problem-solving and UI/UX skills This opportunity offers a competitive compensation package and hybrid working More ❯
City of London, London, United Kingdom Hybrid / WFH Options
fountify
portfolio or GitHub. Required Skills: WordPress, including building custom themes/plugins Headless CMS Web markup, including HTML5, CSS, and JavaScript/TypeScript Knowledge and experience of Git Sass, Webpack, and CSS frameworks like Tailwind React/NextJS and GraphQL Working with Restful APIs HTML emails DNS records Linux command line Experience with Vercel SEO principles Experience in an agency More ❯
portfolio or GitHub. Required Skills: WordPress, including building custom themes/plugins Headless CMS Web markup, including HTML5, CSS, and JavaScript/TypeScript Knowledge and experience of Git Sass, Webpack, and CSS frameworks like Tailwind React/NextJS and GraphQL Working with Restful APIs HTML emails DNS records Linux command line Experience with Vercel SEO principles Experience in an agency More ❯
South East London, England, United Kingdom Hybrid / WFH Options
fountify
portfolio or GitHub. Required Skills: WordPress, including building custom themes/plugins Headless CMS Web markup, including HTML5, CSS, and JavaScript/TypeScript Knowledge and experience of Git Sass, Webpack, and CSS frameworks like Tailwind React/NextJS and GraphQL Working with Restful APIs HTML emails DNS records Linux command line Experience with Vercel SEO principles Experience in an agency More ❯
teams/chapters. Proficiency in HTML5, CSS3, TypeScript, and React. (experience in NextJS and Apollo GQL beneficial) Extensive knowledge of frontend build tools, package managers, and version control systems (Webpack, NPM/Yarn, Git, etc.). Experience with frontend testing frameworks and methodologies. Excellent problem-solving and analytical skills. Strong communication and management abilities. Experience working in an agile development More ❯
Technologies: Docker SQL NoSQL AWS Lambda DynamoDB application security HTML5 ES2018 React Redux Webpack NodeJS REST APIs Git Software Architecture Scalable Apps Optimisation The Benefits: Situated in the heart of London's Tech City with easy access to the mainline and tubes, the area is now a trendy area to live and work, with creative businesses and smart studios in … Experience Docker SQL/NoSQL AWS Lambda DynamoDB Application Security Skillset: Degree in Computer Science or related area Excellent communication skills in English, both written and verbal HTML5 ES2018 Webpack Node.js REST APIs Git/workflow models Software Architecture Scalable Apps Enterprise CMS implementation (nice to have) Knowledge of Machine Learning - beneficial Applicants are invited to apply as soon as More ❯
Knowledge of modern authorization mechanisms, such as JSON Web Token Familiarity with modern front-end build pipelines and tools Experience with common front-end development tools such as Babel, Webpack, NPM, etc. Familiarity with code versioning tools The Client is based in Holborn London. The salary for this role is in the range £70K - £90K. Please send your CV to More ❯
Trading UI Engineer – Front Office JavaScript, React, typescript, NodeJS, Tailwind, GraphQL, ApolloQL, Webpack, Cypress, HTML, CSS, REST, Data Visualisation, API. Real Time Trading Software, UI Development Perm Role – London – Onsite. £80000 - £120000 plus bonus Harrington Starr has partnered up with a Global Investment Bank in the City of London who are looking to hire a Senior UI Trading Software Developer More ❯
Trading UI Engineer – Front Office JavaScript, React, typescript, NodeJS, Tailwind, GraphQL, ApolloQL, Webpack, Cypress, HTML, CSS, REST, Data Visualisation, API. Real Time Trading Software, UI Development Perm Role – London – Onsite. £80000 - £120000 plus bonus Harrington Starr has partnered up with a Global Investment Bank in the City of London who are looking to hire a Senior UI Trading Software Developer More ❯