Front-end UI Developer jobs in London

Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you'll have the opportunity to grow your career, give back to your community and make a real impact. Job Overview We are seeking a highly skilled and motivated front end application developer to join a greenfield...

You will work closely with cross-functional teams to deliver engaging solutions that meet the client's needs. Are you someone who could:Provide technical leadership and mentorship to a team of developers, guiding them through best practices and ensuring high-quality code.

Excellent opportunity for Front-End Developer looking to join a forward-thinking company producing award-winning software used by leading businesses across the globe. The successful Senior Frond Developer will need to have extensive commercial experience using ReactJS and should be comfortable working to their own initiative but also happy to mentor and offer guidance to the more junior members...

Front-End Contractor (React / Next.js) Location: Remote (UK based candidates only) Contract: Outside IR35 Day Rate: Up to £400 per day I am currently looking for an experienced front-end developer to help deliver key product features at speed for one of my start up clients. You’ll work on high-impact UI components and collaborate with design, backend, and AI teams to create interfaces for...

You will collaborate closely with a Technical Project Manager and Technical Lead, contributing to the delivery of iterative improvements across multiple platforms. The role requires strong proficiency in React, Next. js, PHP, and React Native, while experience with any CMS platform is considered an advantage.

About Aero A digital experience company, we sit at the intersection of insights, creativity and technology, crafting digital experiences that transform business performance. We’re a small, fully remote team with big ambitions. We work hands-on with our clients, giving our teams genuine ownership of their work. Every project you touch will be seen by thousands of people and will directly...

You should have Strong experience with TypeScript/JavaScript and modern frameworks (React or similar). A proven track record of delivering polished, performant, and elegant user interfaces. Deep appreciation for UI/UX craftsmanship and accessibility. Familiarity with REST APIs, websockets, and secure frontend patterns.

About Aero A digital experience company, we sit at the intersection of insights, creativity and technology, crafting digital experiences that transform business performance. We’re a small, fully remote team with big ambitions. We work hands-on with our clients, giving our teams genuine ownership of their work. Every project you touch will be seen by thousands of people and will directly...

Senior Frontend Engineer – Next.js / React Location: Type: Full-Time ai We’re building the Cursor for ad management. ai helps companies launch ads 10x faster on Meta & TikTok. Created by top performance marketers who’ve managed over $50M+ in ad spend. Level the playing field by giving every business access to enterprise-grade ad automation tools. And we’re building AI-powered tools to...

Frontend Developer - HybridThe salary on offer for this role is £55,000 - £65,000 per annumHybrid - Enfield, London - 3 days per weekWe're seeking a Frontend Developer to join our client's team to build and maintain the development and upkeep of their e-commerce user interface. This role is key to delivering a unified, high-performance customer experience across all channels. Proficiency in...

Location: Flexible/Remote - US/Eastern time zone THINKalpha is reshaping the capital markets. Our platform enables generative content using dynamic data. The core of our platform includes financial search, streaming analytics and is accompanied by both data and transactional frameworks. We are currently seeking a talented Front End Web Developer with a strong technical background and a passion...

A Career with Point72’s Technology Team As Point72 reimagines the future of investing, our Technology group is constantly improving our company’s IT infrastructure, positioning us at the forefront of a rapidly evolving technology landscape. We’re a team of experts experimenting, discovering new ways to harness the power of open-source solutions, and embracing enterprise agile methodology. We...

Senior Frontend Developer (Angular) Location: London (3 days a week) Senior Frontend Developer (Angular) - Would you like the opportunity to work for a market-leading organisation, using cutting-edge technology and data science to deliver smarter, faster solutions? Their software development team is the engine room of their business, and you will have the opportunity to have an impact in helping...

We’re looking for a Webflow Frontend Engineer to join a leading global advisory firm in Central London. You’ll be part of a small, high-performing Design & Technology team building and maintaining world-class websites for some of the world’s most recognised brands. What you’ll be doing: • Building responsive, accessible websites in Webflow • Collaborating with designers and developers to bring...

Senior Frontend Engineer | Up to £850/day Outside IR35 They are looking for a highly experienced Senior Frontend Engineer on a contractual basis: Senior Frontend Engineer Typescript, React based Experience with FE testing strategies, large, complex, data-intensive applications and owning best practices (delivery and user-focused) Hybrid - Central London This isn't an ordinary Senior Frontend...

📌 Role : Front-End Engineer within Quant / Research 📍 Location : London (Hybrid) 💰 Comp : Up to £175,000 + exceptional guaranteed bonus + full package 🏆 Company : Award-winning Quant Fund, founded by Computer Scientists Why this stands out: - Tech Lead is not only an absolute/distinguished beast but one of the nicest people…probably ever! - Engineers report to engineers — no red tape &...

Front End Engineer (Product focus for AI) - Perm £115 - £130K basic + equity - Central London (On-Site, 5 Days a Week) - £115 - £130K basic + meaningul equity - Backed by the biggest name in AI Investment - $6M of recent funding - Very quick feedback and process! About the Company An AI company on a mission to build autonomous digital teammates that take on complex workflows end-to-end —...

About Aero A digital experience company, we sit at the intersection of insights, creativity and technology, crafting digital experiences that transform business performance. We’re a small, fully remote team with big ambitions. We work hands-on with our clients, giving our teams genuine ownership of their work. Every project you touch will be seen by thousands of people and will directly...

Senior Frontend Engineer – Next.js / React Location: Type: Full-Time ai We’re building the Cursor for ad management. ai helps companies launch ads 10x faster on Meta & TikTok. Created by top performance marketers who’ve managed over $50M+ in ad spend. Level the playing field by giving every business access to enterprise-grade ad automation tools. And we’re building AI-powered tools to...

We’re looking for a Webflow Frontend Engineer to join a leading global advisory firm in Central London. You’ll be part of a small, high-performing Design & Technology team building and maintaining world-class websites for some of the world’s most recognised brands. What you’ll be doing: • Building responsive, accessible websites in Webflow • Collaborating with designers and developers to bring...