176 to 200 of 206 Front-End Engineer (Client-Side Engineer) Jobs in London

Saturn, a Series A fintech, is hiring a Senior Product Engineer to own adviser-facing work across web and mobile, shaping AI-assisted workflows and the underlying frontend platform. You will collaborate with product leaders, designers, and experts to move ambiguous problems toward shippable solutions while ...

making energy fair, clean, and simple for all using technology. Key Responsibilities Acting as the flexibility team’s first frontend engineer, establish the team’s frontend capability, lead the team’s frontend technical direction and represent the team to the cross-team community of frontend engineers ...

hire against a very high bar, and this role exists to raise it further. The role A Front End Design Engineer thinks in finished interfaces, not mockups or components in isolation. A technical reviewer at a notified body spends their day inside … what they actually do rather than what the process diagram says. Signals we like, none of them required: design engineering or front-end roles at somewhere like Linear, Vercel, Notion or Figma, a design system you built and maintained, work on interfaces where people review ...

environment and culture that is all about writing great software using the best tools in the best possible manner.As a JavaScript Engineer you will be ensuring that the platform continues to over exceed shoppers expectations, helping us to constantly release new features and improve functionality. … tools that get in our way so we are always evaluating this stack.Python - yes that’s right, although this role is JavaScript engineer we also do a lot of Python and it turns out JS and Python are best friendsWe’re looking for engineers ...

Lovable is seeking an exceptional Design Engineer who blends frontend engineering fundamentals with a craftsman's eye to execute on our website. You’ll work closely with design and marketing to build world-class web content empowering the next generation of creators and builders. In this ...

Outpost is seeking a Frontend Engineer to craft intuitive interfaces for complex financial operations and global commerce. You will work with leadership to shape merchant dashboards, payment flows, tax tools, and AI-enhanced analytics. You’ll design responsive, scalable React applications, drive frontend best practices ...

Emma is looking for a Senior Frontend Engineer to shape the mobile and web experience from our London office. You will drive features end-to-end using React and React Native, partnering across product, design and backend teams to ship with speed ...

Emma is seeking a Senior Frontend Engineer (React/React Native) to join our London office. You will own frontend features for mobile and web apps, contribute to architecture, and collaborate with a high-performance team to ship delightful user experiences. The role emphasizes delivering fast ...

Augur is seeking a frontend engineer to build complex, performant web apps for visualising and navigating data. You’ll implement core frontend components and extend them to support customer-specific workflows across sectors. This high-impact role invites rapid prototyping and emphasizes robust, reusable abstractions. Join ...

Solirius Reply is seeking an experienced Automation Test Engineer/SDET to join our London-focused client projects. You will design, develop, and deliver test solutions while mentoring teammates and upholding best practices. Most work can be done remotely, with travel to London ...

Augur Initiative Ltd in London is seeking a frontend engineer to build complex, high-performance web apps for visualising data in real-time environments. You will own core frontend components and interfaces, extending them to support customer-specific workflows across multiple sectors. The role requires rapid ...

CrowdStrike Holdings, Inc. is seeking a Senior Frontend engineer to lead the development of large graph UI features in our Kestrel graphs UI team. You will shape visuals, optimize data-rich interfaces, and collaborate across design, product, and cloud engineering to deliver scalable frontend solutions. ...

develop is seeking a Frontend Engineer to build a brand new product using React and TypeScript. This remote-first role includes one on-site day per month in London and offers a competitive salary up to £85,000. You will collaborate with backend engineers ...

Solirius Reply, part of the Reply Group, is seeking an experienced Automation Test Engineer/SDET to work with clients in the public and private sectors. You will design, develop and deliver test solutions, mentoring team members and promoting testing best practices. Remote work is available ...

Synthesia Limited, a London-based AI video platform, is hiring a Senior Frontend Engineer for the Website team. You will own the component library, content model and rendering stack behind synthesia.io, shaping direction and making key technical decisions. You’ll work end-to-end ...

Powster, a Creative Studio based in London and Los Angeles, is seeking a Senior Creative Software Engineer with a strong UX/UI focus to lead immersive WebGL experiences for high-profile movie and music clients. You will own the frontend SDLC from creative ideation through ...

Senior Frontend Mobile Engineer Salary: Up to £80,000 D.O.E Location: Fully remote (UK) We're looking for an experienced Software Engineer to join a permanent feature team, working across the full development lifecycle and building customer-facing applications across ...

Seamflow in London is seeking a Front End Design Engineer who can turn dense regulatory data into clear, fast interfaces. You’ll own the UI from layout to the design system, and you’ll work directly with reviewers who use the product ...

Flagstone is seeking a Staff Engineer specializing in front-end and mobile to set technical strategy and drive high-quality React and React Native systems across multiple squads. You will mentor engineers, shape architecture, and lead design-system evolution while partnering with ...

Augur Communications Ltd is seeking a frontend engineer to build complex, performant web applications for visualising and navigating data. You will develop core frontend components and interfaces and extend them to support customer-specific workflows across various sectors. This high-impact role suits someone ...

NextGenEnergyJobs is seeking a senior frontend engineer to lead the flexibility team's frontend capability in the UK. You will own a range of customer journeys for onboarding, control, and analysis of low carbon tech, and build internal interfaces for stakeholders and experiments. You will collaborate ...

CoreWeave is seeking a Staff Frontend Engineer to own the Physical AI platform’s frontend end-to-end, shaping architecture, design system evolution, and performance. You’ll collaborate with Design, Product and Backend Engineering to deliver intuitive, data-heavy UIs for engineers ...

Caribou is hiring a frontend-focused full-stack engineer in the UK to build data-dense, legible interfaces for intercompany tax data. You will own features end to end, from frontend through the API, collaborating with our CTO, lead engineer ...

Solve Intelligence is seeking a founding Growth Engineer in London to drive product growth across engineering, product, and marketing. You will own analytics, funnel optimization, and engagement strategies in a fast-growing AI startup environment. You will work with a tight-knit team to define metrics ...

Tech is seeking a Frontend Engineer to design and build UI for our AI agent platform in financial services. You will translate complex workflows into intuitive interfaces, contribute to design system, and ship production-ready React code. You'll work closely with engineers and the founding ...