13 of 13 Front-End Engineer (Client-Side Engineer) Jobs in London

Junior Front-End Software Engineer (Contract – Remote) Our firm is seeking a Junior Front-End Software Engineer to support the build and launch of our client-facing platform. This role is fully remote and offered on a contract basis , with a competitive … implementing user-facing features for our web platform Work with senior engineers to translate UI/UX designs into responsive, accessible, and performant code Support integration of front-end components with backend services and APIs Test and debug code to ensure reliability across browsers and devices Contribute to code reviews and maintain clean, reusable code standards … Bachelor’s degree in Computer Science, Software Engineering, or a related field (or equivalent experience) Proficiency in HTML5, CSS3, and JavaScript Familiarity with at least one modern front-end framework (React, Vue, or Angular preferred) Basic understanding of responsive design, accessibility, and cross-browser compatibility Knowledge of Git for version control Strong attention to detail and More ❯

Junior Front-End Software Engineer (Contract – Remote) Our firm is seeking a Junior Front-End Software Engineer to support the build and launch of our client-facing platform. This role is fully remote and offered on a contract basis , with a competitive … implementing user-facing features for our web platform Work with senior engineers to translate UI/UX designs into responsive, accessible, and performant code Support integration of front-end components with backend services and APIs Test and debug code to ensure reliability across browsers and devices Contribute to code reviews and maintain clean, reusable code standards … Bachelor’s degree in Computer Science, Software Engineering, or a related field (or equivalent experience) Proficiency in HTML5, CSS3, and JavaScript Familiarity with at least one modern front-end framework (React, Vue, or Angular preferred) Basic understanding of responsive design, accessibility, and cross-browser compatibility Knowledge of Git for version control Strong attention to detail and More ❯

prototype, iterate, and deploy solutions that meet the highest standards of performance, security, and compliance in a regulated financial setting. Accountabilities & Responsibilities Design and develop modern, responsive front-end applications from the ground up using React, TypeScript, and Next.js. Build secure, performant user interfaces that integrate with LLM APIs (e.g., Gemini, Azure OpenAI) and internal systems. … Implement advanced front-end security features including token handling, session management, data masking, and audit logging. Translate UX/UI designs into modular, reusable components aligned with enterprise design systems. Integrate front-end applications with REST/GraphQL APIs, WebSockets, and backend services. Collaborate with AI engineers, backend developers, and cloud architects … pipelines hardened for security and compliance. Participate in code reviews, technical design discussions, and architecture planning sessions. Required Knowledge, Skills & Experience Proven experience building secure, production-grade front-end applications in regulated environments (e.g., finance, healthcare, government). Strong proficiency in modern JavaScript/TypeScript frameworks (React, Next.js) and responsive UI development. Demonstrated ability to build More ❯

prototype, iterate, and deploy solutions that meet the highest standards of performance, security, and compliance in a regulated financial setting. Accountabilities & Responsibilities Design and develop modern, responsive front-end applications from the ground up using React, TypeScript, and Next.js. Build secure, performant user interfaces that integrate with LLM APIs (e.g., Gemini, Azure OpenAI) and internal systems. … Implement advanced front-end security features including token handling, session management, data masking, and audit logging. Translate UX/UI designs into modular, reusable components aligned with enterprise design systems. Integrate front-end applications with REST/GraphQL APIs, WebSockets, and backend services. Collaborate with AI engineers, backend developers, and cloud architects … pipelines hardened for security and compliance. Participate in code reviews, technical design discussions, and architecture planning sessions. Required Knowledge, Skills & Experience Proven experience building secure, production-grade front-end applications in regulated environments (e.g., finance, healthcare, government). Strong proficiency in modern JavaScript/TypeScript frameworks (React, Next.js) and responsive UI development. Demonstrated ability to build More ❯

iterate, and deploy solutions that adhere to the highest standards of performance, security, and compliance in a regulated financial setting. Key Responsibilities: Design and develop modern, responsive front-end applications from the ground up using React, TypeScript, and Next.js. Build secure, performant user interfaces that integrate with LLM APIs (e.g., Gemini, Azure OpenAI) and internal systems. … Implement advanced front-end security features, including token handling, session management, data masking, and audit logging. Translate UX/UI designs into modular, reusable components aligned with enterprise design systems. Integrate front-end applications with REST/GraphQL APIs, WebSockets, and backend services. Collaborate closely with AI engineers, backend developers, and cloud … CD pipelines hardened for security and compliance. Participate in code reviews, technical design discussions, and architecture planning sessions. Required Skills & Experience: Proven experience building secure, production-grade front-end applications in regulated environments (e.g., finance, healthcare, government). Strong proficiency in modern JavaScript/TypeScript frameworks (React, Next.js) and responsive UI development. Demonstrated ability to build More ❯

interactions. Apply CI/CD and DevOps best practices to streamline build, test, and deployment processes. (Good to Have) Apply AI principles and integrate AI agents into front-end applications where applicable. Required Skills Proven experience as a front-end developer or similar role. Strong understanding of SEO best practices for front More ❯

Senior Frontend Engineer London (Hybrid 1x per week) Salary: Up to £85k + benefits About us Our client is a Insurtech Unicorn looking to expand their engineering team. With the opportunity to work on existing products which have generated millions in revenue to something new changing the landscape of the insurance world, this is … and growth focussed Senior engineer looking to start an ambitious business. About the role We're looking for a Senior Front End Engineer to help shape the future of our B2C products. This is an exciting opportunity to work at the heart of a cross-functional, agile, and More ❯

Senior Front End D3 Javascript Software Engineer - Holborn Our Client wants to recruit a Senior Front End Software Developer with at least 7 to 10 years expertise of working with D3 React and Javascript. You will be involved with creating sophisticated, robust and easy to use … CSS, HTML including DOM manipulation and the JavaScript object model Familiarity with RESTful APIs 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 More ❯

Front End Software Engineer - London page is loaded Front End Software Engineer - London Apply locations London Office posted on Posted 7 Days Ago job requisition id R14631 Why it's worth it: Are you a passionate Software Engineer who has … Azure. Solid understanding of unit testing, continuous integration and deployment practices. Experience with Agile Methodology. Higher education/relevant certifications. Similar Jobs (1) Mid/Sr. Software Engineer - London locations London Office posted on Posted 7 Days Ago More ❯

Principal Software Engineer - Front End Architect and Governance Lead Why you should apply for a job to JPMorgan Chase: 61% say women are treated fairly and equally to men 77% say the CEO supports gender diversity Ratings are based on anonymous reviews by Fairygodboss members. Position summary ll guide the development of … and implementation of strategic UI architecture for the platform, ensuring alignment with business objectives and technical standards. Make key decisions about technologies, frameworks, and patterns used in front-end development, ensuring they align with overall technical strategy and business needs. Establish and enforce governance policies for UI frameworks, ensuring consistency, reusability, and maintainability across the platform. … Collaborate with product managers, UX designers, and development team leads to ensure seamless integration and delivery of front-end solutions. Establishing and enforcing architectural standards, ensuring adherence to best practices (including performance optimization, accessibility, and responsive design), and conducting regular reviews to maintain alignment with organizational policies. Evaluate and recommend latest technologies, tools, and frameworks to More ❯

Senior Frontend Developer/Lead Frontend Engineer/React/TypeScript/Functional Programming/Elm/Haskell/AI Senior Frontend Developer - Deep Tech GenAI Startup Title: Senior Frontend Developer Location: Hybrid, London (1 day a week on-site) Domain: AI startup, Engineering Tech: JavaScript, React, TypeScript, Elm, WebGL, Tailwind CSS, AI Salary … theoretical physics, and computational geometry to build tools that transform large-scale engineering through machine learning and generative AI. They are now looking for a Senior Frontend Engineer with a passion for functional programming and elegant, performant user interfaces. The frontend stack includes React, TypeScript, Elm, and WebGL, with the backend built mainly in Python and … join a fast-paced startup culture that values learning, experimentation, and collaboration with some of the best minds in the industry. Senior Frontend Developer/Lead Frontend Engineer/React/TypeScript/Functional Programming/Elm/Haskell/AI More ❯

Senior Frontend Developer/Lead Frontend Engineer/React/TypeScript/Functional Programming/Elm/Haskell/AI Senior Frontend Developer - Deep Tech GenAI Startup Title: Senior Frontend Developer Location: Hybrid, London (1 day a week on-site) Domain: AI startup, Engineering Tech: JavaScript, React, TypeScript, Elm, WebGL, Tailwind CSS, AI Salary … theoretical physics, and computational geometry to build tools that transform large-scale engineering through machine learning and generative AI. They are now looking for a Senior Frontend Engineer with a passion for functional programming and elegant, performant user interfaces. The frontend stack includes React, TypeScript, Elm, and WebGL, with the backend built mainly in Python and … join a fast-paced startup culture that values learning, experimentation, and collaboration with some of the best minds in the industry. Senior Frontend Developer/Lead Frontend Engineer/React/TypeScript/Functional Programming/Elm/Haskell/AI More ❯

Front End Engineer/Developer (React v19 TypeScript) London/WFH to £95k Are you a Front End technologist looking for an opportunity to progress your career in a hands-on role with lots of learning opportunities? You could be joining a Hedge Fund with complex work and … substantial bonus earning potential. As a Front End Engineer you'll join a globally distributed team to develop engaging and simple user interfaces across all internal business systems. You'll collaborate with UX and Product teams, actively participating in all stages of a project, through product design, development, implementation, testing and maintenance. … are degree educated, having achieved a 2.1 or above in Computer Science or similar technical discipline What's in it for you: As a Front End Engineer you will receive a competitive package: Salary to £95k Bonus Pension Self development and career progression opportunities Apply now to find out more about this More ❯