10 of 10 Permanent Front-End Developer (Client-Side Developer) Jobs in Slough

We have partnered with a data platform and insights provider used by leading global brands to navigate and engage virtual worlds. Our platform enables clients to measure, attribute, and identify tangible revenue opportunities in digital spaces. They are a team More ❯

that values continuous learning and global collaboration, where you can make a meaningful impact through innovative projects that shape the future of technology. About the Role The Front-End React Engineer will design, develop, and deliver responsive, accessible, and high-performing web applications using React.js and modern front-end technologies. This role … maintainability, and security across digital platforms. Responsibilities Develop scalable and reusable React.js components using TypeScript. Translate UX/UI designs into responsive and accessible web interfaces. Integrate front-end applications with RESTful and GraphQL APIs. Implement secure authentication, session management, and data handling. Optimise applications for performance, accessibility, and cross-browser compatibility. Maintain consistent styling using … such as Material UI, Bootstrap, or TailwindCSS. Collaborate with UX Designers, Developers, and Integration Specialists to align workflows. Work with Solution Architects and Cloud Engineers to deploy front-end applications in AWS or Azure environments. Participate in Agile ceremonies including sprint planning, stand-ups, and retrospectives. Conduct peer reviews and ensure adherence to front More ❯

Location: London Clearance: Active SC or DV required Rate: Competitive/Negotiable (Outside IR35) Duration: 6 Months (scope to extend) I'm looking for a Senior Frontend Engineer to join a fast-growing UK Defence tech innovator building a generative More ❯

Provide are seeking a Mid-Senior Front-End Developer to join our clients' dynamic engineering team, building user-centric web applications that scale to thousands of customers. You will work primarily with React , TypeScript, and modern front-end technologies to deliver responsive, performant, and accessible interfaces. Collaborating closely … with designers, backend engineers, and product managers, you’ll turn complex requirements into intuitive, polished user experiences. As a senior contributor, you will influence the front-end architecture, enforce best practices, and ensure high code quality across the team. The ideal candidate has professional experience with React, TypeScript, and modern JavaScript frameworks , along with a strong … understanding of component-based architecture, state management (e.g., Redux, Zustand, or Recoil), and front-end performance optimization. Experience with RESTful APIs, GraphQL, and testing frameworks (Jest, React Testing Library, Cypress) is highly desirable. You should be comfortable mentoring junior engineers, conducting code reviews, and helping the team adopt scalable, maintainable practices. This role offers an exciting More ❯

Front End Developer/Engineer (TypeScript React Native AI) London/WFH to £65k 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 Developer at a well-established AI company acting as tech incubator within the World Economic Forum to tackle issues like climate change, AI, battery technology and other real world problems. As a Front End Developer you … AWS preferred) You are a bright, proactive individual and a strong problem solver with commercial acumen What's in it for you: As a Front End Developer/Engineer, you will earn a competitive package including: Salary to £65k Bonus Pension Healthcare Work with the latest cutting-edge AI technologies Excellent training More ❯

Senior Front End Engineer – AI x Metaverse - React London | £80–90k | Onsite 3 days/week 6 years + commercial experience. An early-stage, fast-growing SaaS company is scaling its engineering team in London. Their More ❯

It also means committing to excellence, learning, and delivering great products to our customers in a high-velocity startup. The role We’re looking for a talented Front-End Engineer to drive the development of our high-performance AI video security platform. In this role, you will own a significant part of the front … skills. Experience with React Query, Storybook, and Material UI (or similar). Proven ability to optimize performance and build interactive, user-friendly applications. Experience leading large-scale front-end projects and setting best practices. Familiarity with backend/cloud technologies (AWS, Python, databases). Self-driven with a high level of intrinsic motivation to succeed and More ❯

The package Up to £72.5k depending upon experience. The role We’re looking for an experienced, creative, and technically proficient Frontend Developer to join our small, talented team of two frontend engineers within a larger product team. Here’s what you’ll be doing: Drive improvements and growth across seven (and growing!) responsive websites and our … with experience working with design systems, and building visually consistent interfaces. Knowledge of web accessibility standards (WCAG) and the ability to implement inclusive user experiences. Experience optimising client-side code for performance, including techniques like code splitting and lazy loading. Excellent written and verbal communication skills with the ability to explain technical concepts clearly. Comfortable taking More ❯

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. They’re on a mission to transform the way businesses leverage systems through AI-powered solutions, and they’re looking for a Front-End Engineer More ❯

Frontend Developer London - 3x Days per week on-site 3-6 Month Contract One of our major banking clients is looking for a Front end Developer. Must-Have Skills: Strong proficiency in React and JavaScript . Deep understanding of web accessibility standards and testing methodologies. Experience designing and implementing component libraries . More ❯