19 of 19 Front-End Engineer (Client-Side Engineer) Jobs in the City of London

best practices for consumption, asking relevant questions about scalability and performance, while pragmatically leveraging the strengths and addressing the weaknesses of both front-end and back-end systems System Development: Develop efficient and reusable front-end systems and abstractions … performance to deliver a high-quality UX Industry Trends & Best Practices: Stay up-to-date with emerging trends and best practices in front-end development, particularly in the fintech industry Code Review & Quality Assurance: Participate in code reviews, providing constructive feedback to maintain code quality ...

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 … visible impact Beautiful offices with all the expected perks like food, gyms etc What you will be working on: Building next-gen front-end systems powering real-time trading Crafting interactive dashboards and research tools with live insights and streaming data Working with the quants ...

professionals across the business. The team is currently re-architecting its technology stack to become fully cloud-native (AWS), using React for front-end development and Python for backend services. You’ll be working in a culture that values craftsmanship, test-driven development, clean code … collaboration through pair programming and code reviews. What You’ll Do Build dynamic front-end applications and UI components using React, TypeScript, and modern libraries. Collaborate with UX and product teams to refine user journeys and ensure intuitive design. Deliver scalable and testable code within ...

Senior Front End Engineer | Build the Future of On-Screen Discovery | 2 Days LDN | £100K - £110K + Equity Build the future of how people watch, discover and shop... Imagine a world where the moments that inspire you on screen don’t stop … partners, they are an early-stage team with big ambition and they are just getting started! The Role: Senior Front End Engineer I'm looking for a standout engineer to join their core team in a high-ownership ...

Storybook · Tailwind CSS · Jest · Cypress · Playwright What You Bring 8+ years building and evolving large-scale web applications. Proven track record in front-end architecture (modular codebases, micro-frontends, design systems, scalability). Strong portfolio of data-heavy, real-time UIs and reusable component libraries. Expertise … frameworks. Passion for developer experience, tooling, and mentoring. Degree in Computer Science or equivalent experience. Bonus points for: Open source contributions to front-end tooling, design systems, or data-visualisation libraries. Experience with WebSockets, PWAs, offline support, or design-token pipelines. How They Work Speed with ...

partnering exclusively with one of London’s most prestigious trading powerhouses to hire a standout Front-End Software Engineer — someone who lives and breathes elegant UI engineering and wants to build products that matter at millisecond scale. This is your chance … TypeScript Partnering with back-end engineers, traders, and product leads to shape next-generation trading tools Designing and evolving front-end architectures for real-time data and complex visualisations Working in an environment where craftsmanship, performance, and code quality are taken seriously — every single ...

bring the intelligence of modern machine learning directly to the in-store shopping experience. Role: We’re looking for an experienced Frontend Engineer to work closely with product, design, mobile, and machine learning team members to design & build experiences that re-define retail shopping. ...

Staff Frontend Engineer (React) 💸 £100-110k + package incl. equity 📍London hub - hybrid working (2 days pw) 💻React, Next.js, Typescript, Postgres, Kafka, Vercel, AWS etc. Does joining a near profitable AI start-up (B2B SaaS) already working with global leaders in SaaS to improve efficiency … revenue interest you? How about joining as a Senior Frontend Engineer owning technology direction and roadmap of the platform? Then this could be the one for you! SwitchTT are partnered with an AI B2B SaaS start up who after 3 years are closing in on profitability ...

Senior Frontend Engineer 2 days p/week in London Paying up to £100k Senior Frontend Engineer – Would you like the opportunity to work for a fast-growing tech organisation working in the user-data space? They’re currently helping people gain … more control and benefit from the use of their personal browsing data. As a Senior Frontend Engineer, you’ll work across their main web products, owning features from idea to delivery and improving the experience users have every day. As a Senior Frontend Engineer ...

Senior Software Engineer | Python | Backend | React | Frontend | AWS | London About the company We are an early-stage technology company focused on accelerating the development of more productive, sustainable, nutritious, and climate-resilient food sources. Our work centres on building an ML-driven target discovery platform … will be based in a shared office environment, with regular in-person collaboration. The role We are hiring a full-stack software engineer to build the internal discovery product that ties together workflows developed and optimised over the last two years. You will translate real scientific ...

Senior Product Engineer (Frontend) 2 days a week in Central London Salary paying £90k-£105k + benefits Oliver Bernard have partnered with a high-growth, product-led tech company on the search for a Senior Product Engineer (Frontend) to take ownership … end ownership of projects in a lean, collaborative environment. Please apply now for more information. Senior Product Engineer (Frontend ...

Senior Frontend Engineer (Enterprise Data & Visualisations) - Contract Inside IR35/Hybrid We’re looking for a Frontend Engineer to join a key client to design and build enterprise-grade dashboards and visualisations that deliver actionable insights at speed. This ...

Frontend Engineer Key Responsibilities Rapid prototyping: Deliver initial dashboards and visualisations in Tableau to meet urgent business needs Robust engineering: Architect and build production-grade, reusable dashboard solutions using modern frontend technologies, integrating with enterprise APIs and data sources Scalability & performance: Ensure solutions are modular, performant ...

Senior Frontend Engineer – Scaling Series B – Growing FinTech 🚀 💰Up to £110,000 🏡Hybrid working – London based 💻React, TypeScript & Next.js We’re partnered with a scaling Series B FinTech who are continuing to grow from strength to strength and have ambitious plans heading into next year … throughout 2025 which plans to further scale and grow heading into the New Year. They are now looking for a Senior Frontend Engineer to join their team to help support the development of their market leading platform whilst also being involved in building new verticals. ...

Frontend Engineer – Join a scaling FinTech 🚀 💰Up to £100,000 🏡Hybrid working – 2-3 days a week onsite – London based 💻React.js, TypeScript, Next.js We’re currently partnered with a scaling FinTech who are transforming the property market to unlock investment opportunities. The business has continued ...

Description Role Purpose The Frontend Engineer will design and build enterprise-grade visualisations that deliver actionable insights at speed initially, whilst ensuring frameworks can scale across all OpCos. This role demands consultancy-level frontend engineering expertise and the ability to balance velocity with strong engineering standards ...

Role: Staff Front End Engineer Location: Hybrid - 2-3 days in London Office Compensation: Up to £170,000 + equity We’re working with a frontier AI-driven biology lab on a mission to redefine how science is done. Their research … building next-generation tools that help scientists visualise, understand, and design biology at an unprecedented scale. As a Front End Engineer , you’ll craft the visual layer of this transformation, designing interfaces that turn vast, complex biological data into intuitive, beautiful experiences. ...

Front End Engineer/Developer (React JavaScript/TypeScript) London/WFH to £80k Want to work on intellectually and technically challenging AI systems at the cutting edge of what is possible, whilst learning and collaborating with an amazing team and enjoying … flexible working and a range of other perks? You could be progressing your career as a Front End Engineer at a well-established AI company click apply for full job details ...

Lead Frontend Engineer | Fully Remote | Climate Tech Start-Up Lead Frontend Engineer required to help shape the user experience of a fast-growing climate tech start-up. This is a fully remote role, with optional access to our London and Cambridge offices. … turns complex climate data into products that drive real-world impact. What you bring 5+ years of professional experience as a Frontend Engineer Strong expertise in modern frontend frameworks (React, Vue, or similar) Excellent understanding of web fundamentals (performance, accessibility, responsiveness) Experience designing and maintaining frontend ...