226 to 250 of 321 Front-End Engineer (Client-Side Engineer) Jobs

project management responsibilities as we grow. Who you are You have at least 8+ years of experience as a Software Engineer and high engineering standards. Proven experience in architecting scalable and reusable UI components and algorithms that efficiently handle large datasets. Experienced and comfortable with Redux … design principles , data structures, algorithms, and the core concepts underlying scalable and reliable architectures. Deep understanding of advanced performance optimisation techniques across front-end and backend. Committed to upholding high engineering standards, delivering clean, testable, reusable, modular, and well-documented code. Experience owning projects from start ...

newest vertical. We are moving from "start-up" to "scale-up," and we are looking for a Senior Front End Engineer . This isn't just an ordinary Engineering role; its an opportunity to disrupt a legacy industry with AI-driven tech ...

unified by a shared drive to achieve our mission through a commitment to excellence. The Role We are looking for a frontend engineer with experience of building complex, performant, dynamic web applications for visualising and navigating data. You’ll be responsible for building core frontend components ...

Comand AI is seeking a front-end specialist to own delivery on Prevail, our operational planning platform, delivering fast, dependable user experiences for real-world geospatial workloads. You will work with product design and engineering to translate operational needs into production-ready interfaces, raising the front ...

Selection is seeking a Lead/Senior Software Engineer a few miles south of Cambridge. The role reports to the CIO, focusing on improving user experience with modern technologies in a not-for-profit setting. The fixed 24-month contract offers hybrid work (2 days ...

Senior Frontend Engineer (React/Next.js) - Herefordshire/Hybrid Were working with a well-established, growing organisation that has recently undergone a major transformation across its technology function , with significant investment and huge growth within the technical team . As part of this continued growth, theyre … looking for a Senior Frontend Engineer with strong React and Next. . click apply for full job details ...

Payments is seeking a Senior Frontend Engineer to join the Technology department in London. You will own front-end components and complex forms in a React 18/TypeScript environment, focusing on onboarding clients and accounts with KYC/KYB workflows. ...

Netcraft is seeking an experienced Frontend Engineer to work … client-facing product within Netcraft's portfolio. You will transform Figma designs into high-quality interfaces, build reusable front-end abstractions, and lead consistency across the product UI. You'll collaborate with Product Design and Engineering, maintain strong code quality with test-driven development ...

work, alongside that redeveloping their main site - these changes have brought about the need for several new roles, including a Senior Frontend Engineer to lead small Scrum teams from a technical perspective, advising how to use the new technologies to create solutions requested by senior stakeholders … maintainability, and optimal performance across all applications Be a React/Next.js Expert: Leverage advanced React and Next.js features, including Server Components, client-side rendering, routing, and data fetching within the App Router paradigm to build robust, modern applications Senior Front End ...

Associates is seeking an experienced Software Engineer to join a permanent feature team, building customer-facing web and mobile applications across the full development lifecycle. The role centers on TypeScript, React and React Native, with hands-on mobile app delivery on iOS and Android, using Xcode ...

Adapty is hiring a Senior Frontend Engineer to own the frontend of Flow Builder, shaping its architecture and guiding features from customer problems to production. You will collaborate with the SDK team, ensure fast editor performance, and drive the product forward with minimal gaps between browser ...

Parser is seeking a Senior Frontend Engineer to craft scalable, accessible web apps using React.js and modern frontend practices. You will translate designs into high-quality interfaces, optimize performance, and integrate with backend APIs in a cross-functional team across Europe and beyond. You will work ...

Jain Global is seeking a Senior UI Platform Engineer to join in London. You will help build reusable frontend foundations, maintain shared React/TypeScript packages, and shape onboarding and access experiences across teams. The role focuses on platform engineering for internal web apps, with emphasis ...

Monzo is seeking a Web Engineer to help maintain and scale the public website and build new frontend features. You’ll work closely with product managers, designers and engineers to deliver high-quality, performant user experiences across international audiences. You’ll leverage modern JavaScript, React ...

Applied Intuition UK is seeking a Senior Fullstack Engineer to join our London team. You will own the design, development, and production rollout of user-facing software across interfaces, APIs, and services. You will work with engineers spanning frontend, backend, and autonomy domains to ensure cohesive ...

Imperial College London is seeking a Software Engineer to help shape the UI/UX of Lambda Feedback, a platform supporting thousands of students with automated formative feedback. You will design and improve user interfaces while collaborating with teaching staff and stakeholders across a world-leading ...

Checkout.com in London is seeking a Frontend Software Engineer to design, build and maintain the UI for our payments platform. You will collaborate with Product and Design to deliver scalable frontend experiences across multiple touchpoints. You’ll implement features with React/TypeScript, apply best practices ...

numi is seeking a Frontend Engineer to help build the next phase of a rapidly growing connected gaming platform. You’ll join a small team, modernising the current web experience, shipping new features and driving engagement. You’ll own initiatives, spot problems, and take ownership rather ...

Kpler is hiring a Mid Full-Stack Engineer in the United Kingdom to build core systems and internal tools across PHP backend and React/TypeScript frontend. You will maintain billing infrastructure, including Stripe-driven processes, and deliver responsive interfaces. You’ll collaborate with Product, Finance ...

IntaPeople Limited is recruiting a Full Stack Software Engineer for a product-focused team investing in modern software engineering practices, including AI-assisted development. You will shape backend services and APIs while contributing across the stack, collaborating with Product, QA and Design to deliver meaningful outcomes ...

Encord in London is seeking an experienced full-stack engineer to build high-performance frontend experiences and data visualization for the Physical AI stack, from 3D rendering to browser performance. You will own projects end-to-end, collaborate across backend and frontend ...

dynamic creative startup in London seeks a Product Engineer to enhance their web app and SDK, utilizing skills in React, Next.js, Node.js, and TypeScript. The role emphasizes collaboration across teams and encourages innovative problem-solving while offering a hybrid working model with competitive salary and equity ...

Intermedia Intelligent Communications is seeking a Senior Frontend Engineer to lead the development of scalable, real-time web experiences. You will design and implement high-quality components, collaborate with product and UX teams, and drive frontend architecture decisions across channels. You will mentor engineers, champion accessibility ...

Eucalyptus in Greater London is looking for a Senior Frontend Web Engineer to take ownership of its frontend platform. Your role will focus on designing and executing growth-driven experiments to enhance user engagement and retention while collaborating with cross-functional teams. The ideal candidate ...

CreateFuture in the UK is looking for a Senior Frontend Engineer (Vue.js/TypeScript) to build scalable, accessible frontend solutions for iGaming clients. You’ll influence technical direction, mentor peers, and help embed AI and automation in delivery. This role supports hybrid and remote work across ...