126 to 150 of 160 Permanent Front End Web Developer (Client-Side Developer) Jobs

Senior Engineer/Frontend Engineer/Frontend Developer/React/Typescript/ELM/AI Senior Frontend developer - AI Startup (London, Hybrid) Location: London (Hybrid - 2x per week in office) Experience: 3-6 years Package: 80-150k + equity Tech: React, Typescript … influential in supporting the Design team as they look to grow from 0 to 1 and beyond. The Frontend Environment is ELM and WebGL and the back end is predominantly Python with some Rust. They are running on AWS. This is nectar for Engineers who have both a passion for Front End … class engineers and ML researchers. Hybrid model - 2x a week in our London office. Competitive salary + equity. Senior Engineer/Frontend Engineer/Frontend Developer/React/Typescript/ELM/AI More ❯

to make data-driven decisions that directly contribute to preserving and protecting our planet's precious ecosystems. The Role We're seeking a creative and technically skilled Web Developer & Digital Content Manager to help shape our digital presence and communicate our mission to the world. This hybrid role … combines web development, UI design and content management to help us showcase our innovative geospatial and environmental technology solutions. Key Responsibilities Design and develop responsive web applications using React Build and maintain WordPress sites, including custom themes and plugins Create intuitive UI designs that reflect our brand and enhance user experience Manage … and optimise digital content across our web platforms Collaborate with our technical and scientific teams to translate complex geospatial data solutions into engaging digital content Maintain and update existing digital assets Skills & Experience Proficiency in React and modern JavaScript frameworks WordPress development experience UI/UX design capabilities Experience with version control (Git) Good written communication More ❯

technology in high-trust domains. Security Clearance This role requires UKIC DV clearance. Candidates must already hold this level of clearance. Responsibilities Design and develop responsive, modular front-end applications using Vue.js, React, JavaScript, HTML, and CSS Collaborate with cross-functional teams including product managers, backend engineers, and QA to deliver high More ❯

technology in high-trust domains. Security Clearance This role requires UKIC DV clearance. Candidates must already hold this level of clearance. Responsibilities Design and develop responsive, modular front-end applications using Vue.js, React, JavaScript, HTML, and CSS Collaborate with cross-functional teams including product managers, backend engineers, and QA to deliver high More ❯

they're looking for a frontend developer. The role is paying up to £45,000 and is 5 days a week in the office. Essential: Client-side Javascript/Typescript Modern React Development (Hooks, Context, React Query) Unit & Component testing using React Testing Library Advanced version control using Git. Working with third … Performance optimisation experience (code-splitting, caching, load testing) Well-versed in implementing good practice with regards to accessibility (Keyboard support, screen readers, form usability) Knowledge of various front-end architectural patterns E2E Testing experience (Cypress/Playwright) Experience with Observability as a practice (logging, GA tagging, TrackJS, App Insights) If you would More ❯

they're looking for a frontend developer. The role is paying up to £35,000 and is 5 days a week in the office. Essential: Client-side Javascript/Typescript Modern React Development (Hooks, Context, React Query) Unit & Component testing using React Testing Library Advanced version control using Git. Working with third … Performance optimisation experience (code-splitting, caching, load testing) Well-versed in implementing good practice with regards to accessibility (Keyboard support, screen readers, form usability) Knowledge of various front-end architectural patterns E2E Testing experience (Cypress/Playwright) Experience with Observability as a practice (logging, GA tagging, TrackJS, App Insights) If you would More ❯

they're looking for a frontend developer. The role is paying up to £45,000 and is 5 days a week in the office. Essential: Client-side Javascript/Typescript Modern React Development (Hooks, Context, React Query) Unit & Component testing using React Testing Library Advanced version control using Git. Working with third … Performance optimisation experience (code-splitting, caching, load testing) Well-versed in implementing good practice with regards to accessibility (Keyboard support, screen readers, form usability) Knowledge of various front-end architectural patterns E2E Testing experience (Cypress/Playwright) Experience with Observability as a practice (logging, GA tagging, TrackJS, App Insights) If you would More ❯

they're looking for a frontend developer. The role is paying up to £35,000 and is 5 days a week in the office. Essential: Client-side Javascript/Typescript Modern React Development (Hooks, Context, React Query) Unit & Component testing using React Testing Library Advanced version control using Git. Working with third … Performance optimisation experience (code-splitting, caching, load testing) Well-versed in implementing good practice with regards to accessibility (Keyboard support, screen readers, form usability) Knowledge of various front-end architectural patterns E2E Testing experience (Cypress/Playwright) Experience with Observability as a practice (logging, GA tagging, TrackJS, App Insights) If you would More ❯

Role: Senior Frontend Engineer - React & TypeScript Location: Remote Salary: Up to £100,000 I'm recruiting on behalf of a client based in Warrington, who are looking to bring a Senior Frontend Engineer into their engineering More ❯

Frontend Developer - React, TypeScript & Next.js - Marketing Agency exp - Up to £500/day (Outside IR35) - remote (UK based) - 3 month contract We're looking for a skilled Frontend Developer to join a global, research-driven tech company building next-generation blockchain and decentralized systems. … help create user interfaces for products that power real-world applications - from digital identity to financial platforms. What you'll do: Build and maintain responsive, high-quality web apps. Work with designers and backend teams to deliver polished, user-friendly interfaces. Integrate with APIs, smart contracts, and decentralized systems. Write clean, testable, and scalable code in … to UI performance, design systems, and open-source tools. What we're looking for: 5+ years' frontend experience (JavaScript/TypeScript/React). Strong understanding of web fundamentals (HTML, CSS, accessibility, performance). Experience connecting frontends to APIs or blockchain/Web3 systems. Great communication and collaboration skills in a remote setup. Nice to have More ❯

close collaboration to build both a great product and a great team. Role Overview As a Senior Frontend Engineer, you will develop and maintain user-friendly, responsive web applications. You’ll work closely with product managers, designers, and developers to implement innovative solutions that enhance user experience. This role suits someone with strong JavaScript/TypeScript More ❯

close collaboration to build both a great product and a great team. Role Overview As a Senior Frontend Engineer, you will develop and maintain user-friendly, responsive web applications. You’ll work closely with product managers, designers, and developers to implement innovative solutions that enhance user experience. This role suits someone with strong JavaScript/TypeScript More ❯

close collaboration to build both a great product and a great team. Role Overview As a Senior Frontend Engineer, you will develop and maintain user-friendly, responsive web applications. You’ll work closely with product managers, designers, and developers to implement innovative solutions that enhance user experience. This role suits someone with strong JavaScript/TypeScript More ❯

close collaboration to build both a great product and a great team. Role Overview As a Senior Frontend Engineer, you will develop and maintain user-friendly, responsive web applications. You’ll work closely with product managers, designers, and developers to implement innovative solutions that enhance user experience. This role suits someone with strong JavaScript/TypeScript More ❯

close collaboration to build both a great product and a great team. Role Overview As a Senior Frontend Engineer, you will develop and maintain user-friendly, responsive web applications. You’ll work closely with product managers, designers, and developers to implement innovative solutions that enhance user experience. This role suits someone with strong JavaScript/TypeScript More ❯

Senior Frontend Developer (React) - Series A GenAI Security Scale-up Salary: £120,000 - £135,000 (DOE) + equity + benefits Hybrid: 2 days/week in Central London office (Kings Cross/Covent Garden area) A Series A, high-growth cybersecurity scale-up (~40 employees) is looking for a Senior React Engineer … to join their mission of helping companies adopt Generative AI safely and securely. They are building a developer-first platform that enables data protection without complexity - redefining security for the GenAI era. This is a rare chance to join at a pivotal time as they scale their infrastructure across regions, including a … Tech: React, TypeScript, Figma, Storybook, Git, CI/CD You'll work closely with a highly technical Senior React Engineer to strengthen and scale their high-performance web applications. If you're excited about working in a collaborative team, rolling up your sleeves in an early-stage environment and building the backbone of a secure, GenAI More ❯

Frontend Developer (x2 – Senior & Mid-Level) Location: Edinburgh (Hybrid – 2–3 days per week in office) Salary: Up to £75,000 + bonus (DOE) About the Role We’re looking for two talented Frontend Developers — one Senior and one Mid-Level — to join a growing product engineering team building cutting-edge digital … innovation, collaboration, and clean, maintainable code are at the heart of everything we do. You’ll be part of a cross-functional team developing scalable, high-performing web applications, driving best practices, and shaping the evolution of our frontend architecture. This is a great opportunity to contribute to projects that combine React , TypeScript , and emerging AI More ❯

Frontend Developer (x2 – Senior & Mid-Level) Location: Edinburgh (Hybrid – 2–3 days per week in office) Salary: Up to £75,000 + bonus (DOE) About the Role We’re looking for two talented Frontend Developers — one Senior and one Mid-Level — to join a growing product engineering team building cutting-edge digital … innovation, collaboration, and clean, maintainable code are at the heart of everything we do. You’ll be part of a cross-functional team developing scalable, high-performing web applications, driving best practices, and shaping the evolution of our frontend architecture. This is a great opportunity to contribute to projects that combine React , TypeScript , and emerging AI More ❯

Frontend Developer (x2 – Senior & Mid-Level) Location: Edinburgh (Hybrid – 2–3 days per week in office) Salary: Up to £75,000 + bonus (DOE) About the Role We’re looking for two talented Frontend Developers — one Senior and one Mid-Level — to join a growing product engineering team building cutting-edge digital … innovation, collaboration, and clean, maintainable code are at the heart of everything we do. You’ll be part of a cross-functional team developing scalable, high-performing web applications, driving best practices, and shaping the evolution of our frontend architecture. This is a great opportunity to contribute to projects that combine React , TypeScript , and emerging AI More ❯

Frontend Developer (x2 – Senior & Mid-Level) Location: Edinburgh (Hybrid – 2–3 days per week in office) Salary: Up to £75,000 + bonus (DOE) About the Role We’re looking for two talented Frontend Developers — one Senior and one Mid-Level — to join a growing product engineering team building cutting-edge digital … innovation, collaboration, and clean, maintainable code are at the heart of everything we do. You’ll be part of a cross-functional team developing scalable, high-performing web applications, driving best practices, and shaping the evolution of our frontend architecture. This is a great opportunity to contribute to projects that combine React , TypeScript , and emerging AI More ❯

Frontend Developer | Up to £85k | Hybrid (1 day onsite p/week) | London Make a meaningful impact by contributing to a health tech company that's improving digital tools used by patients … and clinicians alike. You'll help build a medical-backed platform focused on better decision-making and ultimately improved healthcare outcomes. What you need Experience with complex web apps Javascript and CSS Vue, React or Angular Frontend design libraries Component Dev tools Strong UI skills Some of the benefits 25 days' holiday Pension contributions and private More ❯

Frontend Developer | React & TypeScript | Salary £50–65k | Hybrid (Bath, 1 day a week) Would you like to join a high-growth SaaS company that’s revolutionising the B2B sales I’m working with a fast-scaling product company who are now looking for their first ever dedicated Frontend Developer. They’ve grown … join a team of smart, collaborative engineers who care about creating great & effective software solutions! What you’ll need A proven background as a Frontend Developer (ideally with some exposure to migrations or modernising systems) Strong commercial experience with React & TypeScript (they’re not expecting SolidJS experience, so that isn’t required … ability to consider how to improve conversion in UIs Creativity, collaboration and a passion for building impactful software Any experience operating as the sole frontend developer or in a small team would be beneficial Happy to travel to central Bath once a week If you want to take ownership of the frontend More ❯

Sprung Studios is looking for an experienced Frontend Developer to join the Engineering team … in our Brighton Studio. Working alongside the project team and our co-development partners you will help to build UI systems for games. This is not a web development role - games experience essential. Who we are: Sprung is a globally recognised partner for the games industry and has worked on some of the biggest games for More ❯

Sprung Studios is looking for an experienced Frontend Developer to join the Engineering team … in our Brighton Studio. Working alongside the project team and our co-development partners you will help to build UI systems for games. This is not a web development role - games experience essential. Who we are: Sprung is a globally recognised partner for the games industry and has worked on some of the biggest games for More ❯

delivery practices. Proven track record of deploying multiple times a day in a fast-paced environment. Excellent ability with HTML, CSS, vanilla Javascript and Typescript. Proficiency with web browser APIs and HTTP. Logical engineer who keenly avoids over-engineering solutions. Holds high quality code in a delivery focused setting. Experience developing shared code libraries (NPM packages More ❯