1 to 25 of 34 Front-End Engineer (Client-Side Engineer) Jobs in the UK

Senior Front-End Engineer Location: London (Onsite, 5 days per week) Salary & Benefits: £80,000- £120,000 + Benefits Investigo are partnered with an innovative AI technology company at the forefront of the video intelligence industry. They're on a mission to transform the way businesses leverage video data through next-generation … AI-powered solutions, and they're looking for a Senior Front-End Engineer to help shape and deliver their cutting-edge platform. This is an opportunity to join a VC-backed, high-growth scale-up where you'll work alongside world-class engineers and product specialists from some of the most recognised More ❯

UI Engineer/Angular Developer/Angular/Software Engineer/HTML/CSS/JavaScript (ES6+)/Agile/UI/User Interfaces/Wireframes/Front End/Restful API/6-month contract/Remote/£450 – 550 per day Inside IR35. One of our … leading clients is looking to recruit a UI Engineer/Developer/Front End Developer/Software Engineer. Location – remote Duration – 6 months Day rate – £450 – 550 per day Inside IR35 Experience: Experience in a UI Engineer/Software Engineer/Front … and end-to-end), and cross-browser compatibility Collaborate with UX designers and product teams to translate design wireframes and prototypes into working front-end components Ensure a consistent look and feel across all digital products through the implementation and maintenance of a shared design system. Understanding of REST APIs and integration More ❯

services, we share the passion to build an open, accessible and fair financial future, one piece of software at a time. We are looking to hire a Front-End Engineer to join our Institutional team in our London office. is a high-performance culture marked by fearlessness and hyper productivity. You are … experience with AI-assisted development tools like Cursor to enhance productivity and streamline coding workflow. You have experience interacting with crypto apps. You have experience working with Front-End architecture, testing and state management solutions. You should be able to adapt easily to meet the needs of our massive growth and rapidly evolving business environment. You 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 ❯

you come in! Join our global team and help us make great cinema accessible to everyone, everywhere. About the role MUBI is looking for a Senior Frontend Engineer to help shape the future of our web experience. We want someone who's not only built and shipped a variety of great products, but who's also More ❯

About Us Huguenots generates highly personalised solutions for fund management clients of all sizes, from start-up boutiques to global asset management firms, using our in-house investment reporting platform. All clients are assured of the attention to detail, effortless More ❯

About the Role We are seeking for experienced Shopify Theme/Frontend Engineer with a strong background in building scalable, high-performance eCommerce platforms . You will work closely with product managers, UX/UI designers, and engineering teams to design, develop, and optimize Shopify storefronts using the Hydrogen framework in a headless architecture environment. This More ❯

best technology in-house, using new data sources, machine learning and AI to make machines do the heavy liftingAbout the roleWe are looking for a Staff Frontend Engineer to join our UK Cards team, with strong Typescript and React/NextJS experience, to work on one of our key web platforms. You'll join a cross … user journeys and optimise conversion rates in our existing funnels, and answering questions with experiments and fast iteration, to maintaining, refactoring & improving our codebase and tooling.Our ideal engineer is detail focused and resourceful, and keen to understand the bigger picture outside of their product team, contributing to wider engineering and business initiatives that help us further More ❯

Lead Software Engineer London (Hybrid 1x Per Month) Salary: Up to £100k + Benefits + Stock Options 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 the perfect opportunity for a results driven and growth focussed Senior engineer looking to start an ambitious business. The Role We're seeking a Lead Fullstack Engineer to own the frontend architecture and elevate the B2C user experience across our digital products. This is a high-impact role requiring … boost team performance. Our Approach to AI We embrace AI as a catalyst for smarter work enabling faster iteration, enhanced creativity, and focused impact. As a Lead Engineer, you'll champion intentional AI adoption to empower your team and unlock new levels of productivity. Benefits We value and reward our people with: Private Medical Insursance, Company More ❯

Front End React Engineer (TypeScript, API's, some C#/Angular)Gatwick (1 day per week in office).£45000 - £60000 + Package This role cannot offer Visa Sponsorship for applicants. Your new company I am engaged on a project to recruit a React Front End Developer to More ❯

intelligent software systems that integrate agentic AI with scientific reasoning to accelerate research, development, and decision-making. We are seeking a Senior Front End Software Engineer to drive the design, integration, and deployment of web-based applications that enable seamless human-AI collaboration. This role is part of a bold, agentic initiative … is a rare opportunity to shape a greenfield product at the intersection of usability, flexibility, and advanced reasoning. Key Responsibilities Architect, develop, and maintain high-quality, testable front-end code and workflows that align with complex scientific and analytical use cases. Translate user stories, wireframes, and prototypes into production-ready features with a focus on clarity … and performant UIs optimized for data-rich and interactive workflows. Implement DevOps/GitOps practices for automated testing, deployment, and monitoring. Ensure security, scalability, and observability of front-end services in cloud environments (AWS). Ensure robust unit, integration, and end-to-end test coverage to maintain long-term code quality. An More ❯

Job Description We're now recruiting a Senior Frontend Engineer to join our Investcentre team and help in enhancing our successful award-winning platform. You will be joining a team which has a philosophy of continuous improvement, and a strong focus on engineering excellence. What does the job involve? Agile methodologies and a passion for continuous More ❯

Want to craft interfaces that captivate millions? We're looking for a Senior Front End Engineer to lead the development of immersive, gamified user experiences. You'll work with modern frameworks and animation libraries to build responsive, high-performance interfaces that users love. What You'll Be Doing: Designing and developing UI … mentoring junior engineers Collaborating across teams to deliver seamless experiences Managing multiple projects with a focus on quality and performance What You'll Bring: 5+ years of front-end development experience Proficiency in React, Next.js, TypeScript, Node.js, CSS Experience with animation libraries (GSAP, Framer Motion, etc.) Strong understanding of responsive design and UI optimization Excellent communication More ❯

far, and raised over $200 million in funding. And we're only just getting started. About the role We're looking for a Senior Front End Engineer to help shape the future of our B2C products at Zego. This is an exciting opportunity to work at the heart of a cross-functional More ❯

Senior Frontend Engineer (Next.js/React) High-Growth SaaS | Build Elegant, User-First Products In partnership with Robert Half Limited. We're a high-growth SaaS company scaling fast, and we're looking for a Senior Frontend Engineer to join our team. This is a chance to shape products used by thousands More ❯

fast-paced environment, takes initiative, and is excited to shape the future of travel advertising. In this role, you will: Design, build, and maintain scalable, fault-tolerant front-end systems for serving ads across Expedia Group platforms Collaborate with engineers, product managers, and designers to deliver high-quality, user-centric features Contribute to full-stack development … technical design discussions, and agile ceremonies Continuously learn and explore new technologies to improve our stack and developer experience Experience and Qualifications: Experience with React and modern front-end development practices Willingness to work across the full stack and learn backend technologies Solid understanding of software engineering fundamentals and clean code principles Excellent problem-solving and … tech is a plus Interest in or exposure to machine learning applications Bachelor's degree in Computer Science or a related field 3+ years as a software engineer, preferably in e-commerce, ideally in fast-paced, global environments Accommodation requests If you need assistance with any part of the application or recruiting process due to a More ❯

Senior Frontend Engineer $8k–$10k A full-time role for a senior engineer. It’s your chance to take full ownership of frontend projects from design to delivery with minimal supervision! About Ballerine Ballerine is a high-growth, early-stage startup building an open-source platform for identity verification and risk management in the financial sector. … It’s a fast-paced team preparing for Series A funding — and looking for a Senior Frontend Engineer to join our core team. • Senior engineer • Ready to thrive in startup environments • English (C1+) • Deliver independently while collaborating with a world-class team Requirements • 7+ years of commercial engineering experience (only truly senior 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 ❯

Frontend Engineer | TypeScript & React | Salary £55-70k | Hybrid (flexible hybrid working in central Cambridge) Would you like to join a start-up that is helping the world identify more effective treatments for disease, and ultimately saving lives I’m working with an established start-up, who leverage AI & Machine Learning to increase the efficacy of … range of illnesses.It’s full steam ahead with enhancing their product range further and due to continued growth of their customer base, they need a new Frontend Engineer to join the team.You’ll utilise your React & TypeScript skills to progress the UI of various products, whilst maintaining a strong consideration for UX and accessibility for users.This … product range that is having a monumental impact on the lives of many people across the globe! What you’ll need A proven background as a Frontend Engineer Excellent experience with React & TypeScript They’re using Vite & Next.js across various projects, so experience with either of these tools is beneficial Some appreciation for UX and how More ❯

accelerated scientific research. This role will be focused on delivering software which integrates frontier AI research into the workflow of scientists. This will involve designing and implementing front-end tools for novel interaction patterns with generative models, LLMs, and scientific visualizations. This role will be foundational in establishing our UI best practices, ensuring we have consistent … web-based applications Build robust and performant user interfaces for data-heavy applications Translate user requirements into intuitive user experiences Develop the standards and systems for our front-end design and development Design and build out our component library and front-end tooling Help build our first design system to unify our … look and feel across applications Develop novel front-end interfaces which allow scientists to perform AI-accelerated research Push the boundaries of human-computer interaction for chemistry and chemical engineering applications Help design and build data visualizations for scientific and engineering data What We're Looking For 5+ years of professional experience as a frontend engineer More ❯

Senior Frontend Engineer -Angular TypeScript -London The Company Through the power of AI and Big Data this company have developed a number of data driven tools and platforms aimed at delivering a transparent financial solution. Focusing purely on sustainable investment! If you want the leave the planet clean and beautiful for the next generation then you … this company. This group has 4 arms: A Data Provider: Assessing the performance and sustainability of companies worldwide. AI: An advisory and technology company with an AI engineer for forecasting investment opportunities Asset Management: Investment management company investing in sustainable equities They focus on R&D of AI, ML, Data, Finance and sustainability. This company has More ❯

Software Engineer I - Frontend Focus (Viator) Oxford or London, UK Viator, a Tripadvisor company, is the leading marketplace for travel experiences. We believe that making memories is what travel is all about. And with 300,000+ travel experiences to explore-everything from simple tours to extreme adventures (and all the niche, interesting stuff in between)-making … our inventory. We provide the tools which help our customer services team provide world class service to travellers and operators internationally. We're looking for a Software Engineer I Frontend Focus to join our fast-growing team. Viator is a remote first company. This role is open to candidates based in Oxford or London in the More ❯

Software Engineer I - Frontend Focus (Viator) Oxford or London, UK Viator, a Tripadvisor company, is the leading marketplace for travel experiences. We believe that making memories is what travel is all about. And with 300,000+ travel experiences to explore-everything from simple tours to extreme adventures (and all the niche, interesting stuff in between)-making … our inventory. We provide the tools which help our customer services team provide world class service to travellers and operators internationally. We're looking for a Software Engineer I Frontend Focus to join our fast-growing team. Viator is a remote first company. This role is open to candidates based in Oxford or London in the More ❯

and a BFF pattern. What you will be doing Drive frontend strategy in an environment where quality, usability and reliability matter. Lead development of scalable and accessible front-end products using React, Next.js, and TypeScript. Architect user journeys that power onboarding, quoting, and policy management for thousands of drivers. Contribute to backend services connected to the … frontend. Drive consistency, speed, and reliability in our front-end by shaping our design, improving performance, and ensuring we can monitor and debug issues effectively. Partner with product and design to rapidly test ideas, validate hypotheses, and ship iteratively. Mentor other engineers through code reviews, pair programming, and continuous feedback. Improve CI/CD workflows and … testing from scratch, and you're confident in shaping the testing strategy for a codebase. You take ownership of quality and help ensure we ship reliable, predictable front-end experiences. You will be someone who's actively curious about how AI can enhance your work - keen to experiment, learn quickly, and apply tools that improve productivity More ❯

Software Engineer II - Frontend Focus (Viator) Oxford or London, UK Viator, a Tripadvisor company, is the leading marketplace for travel experiences. We believe that making memories is what travel is all about. And with 300,000+ travel experiences to explore-everything from simple tours to extreme adventures (and all the niche, interesting stuff in between)-making … our inventory. We provide the tools which help our customer services team provide world class service to travellers and operators internationally. We're looking for a Software Engineer II to join our fast-growing team. This role is open to candidates based within a commutable distance (generally within 2-3 hours) of one of our office More ❯