1 to 25 of 258 Permanent Front End Development Jobs in London

Senior Front End Developer (Vue, Nuxt) A leading retailer are building a brand new Front End Team and are looking for accomplished Senior Front-End Developers (Vue, Nuxt) to help shape the future of their website offering. This is a high-impact role where engineering excellence meets design precision-your work will directly influence … how millions of global customers affect their online experience. As a Senior Front End Developer you'll lead by example, writing elegant, performant code, mentoring developers, and driving UI strategy across web and mobile platforms. You'll collaborate closely with the product owners, UX designers, full stack engineers, and platform partners to deliver polished, accessible, and scalable interfaces … that set the standard for luxury ecommerce. Responsibilities * Implement scalable, secure, performant and accessible front-end solutions using HTML, CSS and modern frameworks (e.g. Vue 3, Nuxt 3, TypeScript). * Translate UX designs and prototypes into production-ready code with pixel-perfect precision. Integrate front-end components with APIs and backend services, ensuring seamless data flow More ❯

React.js , Python (Flask/FastAPI/Django) , and Azure Cloud , who is passionate about integrating Generative AI models and optimizing modern application architectures. You will be responsible for building end-to-end intelligent systems that connect dynamic Front End interfaces with powerful AI-enabled Back End services. Key Responsibilities: Front End Development … ES6+) , and TypeScript . Utilize modern styling frameworks such as Tailwind CSS or Material-UI . Manage application state with Redux or Zustand . Ensure cross-browser compatibility and Front End performance optimization . Back End Development: Design and implement robust RESTful and GraphQL APIs using Python frameworks ( Flask , FastAPI , or Django ). Build … and maintain secure authentication , authorization , and data processing pipelines . Integrate AI models into Back End systems to enhance product functionality. AI Model Integration: Embed pre-trained Generative AI models and Agentic frameworks (A2A, MCP) into scalable applications. Optimize inference pipelines using ONNX , TensorRT , or similar tools. Ensure smooth communication between Front End , Back End , and More ❯

Front End Developer Home-Based (within the UK) About Us At Family Action, we transform lives by providing practical, emotional and financial support to those experiencing poverty, disadvantage and social isolation.Since 1869, we’ve been building stronger families, and today, we work with over 60,000 families across more than 190 services. We also support thousands more through … national programmes and grants, helping everyone find the tools to overcome challenges and thrive.We are now looking for a Front End Developer to join our team on a permanent, full-time basis, working 37 hours per week. The Benefits - Salary of £43,042 per annum (inclusive of £1,044 market supplement and £480 home working allowance)- An annual … scheme- Investing in your professional development with ongoing quality training and career development opportunitiesThis is the ideal role for a Software Engineer with front-end experience gained with web applications, JavaScript or TypeScript and modern React to advance their career in a meaningful way with our leading, vital charity.As a critical member More ❯

Front End Engineer/Developer (React v19 TypeScript) London/WFH to £95k Are you a Front End technologist looking for an opportunity to progress your career in a hands-on role with lots of learning opportunities? You could be joining a Hedge Fund with complex work and substantial bonus earning potential. As a Front End Engineer you'll join a globally distributed team to develop engaging and simple user interfaces across all internal business systems. You'll collaborate with UX and Product teams, actively participating in all stages of a project, through product design, development, implementation, testing and maintenance. Location/WFH: You'll join colleagues in the impressive … Central London office with flexibility to work from home twice a week. About you: You have strong Front End development skills with React (they're using v19) and TypeScript You are experienced with other web technologies such as HTML, CSS, Web APIs You have a strong knowledge of Computer Science fundamentals including OOP, Design Patterns More ❯

About the Role We’re looking for an experienced React front-end developer to help us enhance and refine our web application over the next couple of months. You’ll be working closely with our team to design, build, and maintain modern, high-quality user interfaces with a strong focus on performance, usability, and polish. What You’ll … Do Design and implement responsive, intuitive, and visually refined front-end components using React and TypeScript . Collaborate with designers and back-end engineers to deliver cohesive user experiences. Manage application state using Redux , Zustand , or similar tools. Work with Material UI (or equivalent UI frameworks) to build consistent, elegant layouts. Write and maintain robust front-end tests (unit, integration, and end-to-end) to ensure quality and reliability. Participate in code reviews and contribute to improving our front-end architecture and practices. What We’re Looking For 4+ years of professional experience building front-end applications with React . Strong proficiency with TypeScript , modern JavaScript (ES6+) , and More ❯

Front End React Developer, React, Javascript, NW London to £80K A leading financial software company are looking for a Front End JavaScript developer who is proficient with React.js. The role is Offcie based in North West London, Your primary focus will be on developing user interface components and implementing them following well-known React.js workflows, specifically … of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product is important. Responsibilities Developing new user-facing features using React.js Building reusable components and front-end libraries for future use Translating designs and wireframes into high quality code Optimising components for maximum performance across a vast array of web-capable devices and browsers … its core principles Experience with Redux and RTK (RTKQuery also a bonus) Familiarity with RESTful APIs Knowledge of modern authorization mechanisms, such as JSON Web Token Familiarity with modern front-end build pipelines and tools (Github actions a bonus) Experience with common front-end development tools such as Babel, Webpack, NPM, etc. Ability More ❯

Senior Front End Developer Location: Remote Salary: Paying up to 90,000, depending on experience. Sector: Technology/Data Infrastructure Client: Leading Global Data Centre Provider A prestigious data centre provider is seeking a highly skilled Senior Front End Developer to lead the development of large-scale, enterprise-grade applications. This is … a prime opportunity to work on high-impact digital platforms using modern technologies in a dynamic and forward-thinking environment. Key Responsibilities Design and build robust, high-performing front end applications using React and TypeScript. Apply expert knowledge of HTML5, CSS3, SCSS, and responsive design principles to create seamless user experiences across devices. Integrate and customise the Mantine … complex application requirements. Develop modular, reusable functional components in TypeScript to promote scalability and maintainability. Candidate Profile Extensive experience in developing enterprise-scale React applications. Strong understanding of modern front end development practices and tooling. Excellent problem-solving abilities and a commitment to writing clean, efficient code. Effective communicator with the ability to collaborate across More ❯

Senior Front End Developer Location: Remote Salary: Paying up to 90,000, depending on experience. Sector: Technology/Data Infrastructure Client: Leading Global Data Centre Provider A prestigious data centre provider is seeking a highly skilled Senior Front End Developer to lead the development of large-scale, enterprise-grade applications. This is … a prime opportunity to work on high-impact digital platforms using modern technologies in a dynamic and forward-thinking environment. Key Responsibilities Design and build robust, high-performing front end applications using React and TypeScript. Apply expert knowledge of HTML5, CSS3, SCSS, and responsive design principles to create seamless user experiences across devices. Integrate and customise the Mantine … complex application requirements. Develop modular, reusable functional components in TypeScript to promote scalability and maintainability. Candidate Profile Extensive experience in developing enterprise-scale React applications. Strong understanding of modern front end development practices and tooling. Excellent problem-solving abilities and a commitment to writing clean, efficient code. Effective communicator with the ability to collaborate across 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'll design and develop new features and enhancements on the core product that uses Artificial Intelligence to harness … experience within a cloud environment (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 and More ❯

Front End Developer 4 days a week in Central London Front End Developer - £80,000 - £100,000 Front End Developer - would you like the opportunity to work with one of the leading SasS company with a presence in the UK and Europe? The Company A market leading SaaS company with a UK and European … and translate development plans and implement a clear road map and timeframes Increase productivity across the team Ensure best practices are adhered to Take ownership of end to end development of features and fixing code Have an input in regular code reviews Pair with colleagues to share your knowledge Requirements 5+ years … other cloud based technologies is advantageous Ideally have worked within a SaaS environment Benefits Annual bonus scheme Flexible working times 26 days holiday 5% Pension Health care As a Front End Developer, this is a unique opportunity to join a market leading company with the added bonus of continuing to grow your skillset, with an outstanding benefits package More ❯

a full-time hybrid role based in London for a Full Stack Engineer. The Full Stack Engineer will work with the product team to design and develop both the front-end and back-end of our product. Day-to-day tasks include collaborating with cross-functional teams, maintaining and improving existing features, troubleshooting and debugging, and ensuring … the scalability and performance of software systems. Qualifications 5 years of demonstrable professional experience as a front-end or full-stack engineer Back-End Web Development and Software Development skills (Python/Node.js/Typescript) Front-End Development (React/TypeScript/CSS proficiency essential) Experience … in full-stack development with SQL databases (Postgres) and deployment on AWS or Azure Bachelor's degree in Computer Science, Engineering, or related field Experience with AI stacks, model components, and integration is preferred Right to work in the UK It is a great opportunity to get in early, help shape the product from the ground up More ❯

a full-time hybrid role based in London for a Full Stack Engineer. The Full Stack Engineer will work with the product team to design and develop both the front-end and back-end of our product. Day-to-day tasks include collaborating with cross-functional teams, maintaining and improving existing features, troubleshooting and debugging, and ensuring … the scalability and performance of software systems. Qualifications 5 years of demonstrable professional experience as a front-end or full-stack engineer Back-End Web Development and Software Development skills (Python/Node.js/Typescript) Front-End Development (React/TypeScript/CSS proficiency essential) Experience … in full-stack development with SQL databases (Postgres) and deployment on AWS or Azure Bachelor's degree in Computer Science, Engineering, or related field Experience with AI stacks, model components, and integration is preferred Right to work in the UK It is a great opportunity to get in early, help shape the product from the ground up More ❯

React Developer/Front End Engineer (React v19 TypeScript) London/WFH to £95k Do you have expertise with React? You could be progressing your career at a Hedge Fund with complex work and substantial bonus earning potential. As a React Developer you'll join a globally distributed team to develop engaging and simple user interfaces across all … and maintenance. Location/WFH: You'll join colleagues in the impressive Central London office with flexibility to work from home twice a week. About you: You have strong Front End development skills with React (they're using v19) and TypeScript You are experienced with other web technologies such as HTML, CSS, Web APIs You … skills You are degree educated, having achieved a 2.1 or above in Computer Science or similar technical discipline What's in it for you: As a React Developer/Front End Engineer you will receive a competitive package: Salary to £95k Bonus Pension Self development and career progression opportunities Apply now to find out more More ❯

Safe Intelligence is on a mission to make AI safe and reliable for everyone. To help us achieve this, we're seeking a Front End Software Engineer to join our team! We're particularly looking for someone with strong front end engineering and Typescript experience and with some experience of backend development (ideally … hybrid with 3-4 days/week in the office in London (Hammersmith). We're excited to have you contribute to our mission! Responsibilities: As a Safe Intelligence Front End Software Engineer, you will: Make key contributions to software development on our TypeScript-based frontend systems, primarily utilizing React to craft intuitive and highly … data science tools and ML tools (e.g., NumPy, pandas, scikit-learn, PyTorch) and open-source contributions (especially Python-based) would be a bonus. Familiarity with CUDA, GPU-based computations, end-to-end neural network training, MLOps, and academic research in machine learning are also beneficial. At a personal level we’re also looking for someone who is: Passionate More ❯

Safe Intelligence is on a mission to make AI safe and reliable for everyone. To help us achieve this, we're seeking a Front End Software Engineer to join our team! We're particularly looking for someone with strong front end engineering and Typescript experience and with some experience of backend development (ideally … hybrid with 3-4 days/week in the office in London (Hammersmith). We're excited to have you contribute to our mission! Responsibilities: As a Safe Intelligence Front End Software Engineer, you will: Make key contributions to software development on our TypeScript-based frontend systems, primarily utilizing React to craft intuitive and highly … data science tools and ML tools (e.g., NumPy, pandas, scikit-learn, PyTorch) and open-source contributions (especially Python-based) would be a bonus. Familiarity with CUDA, GPU-based computations, end-to-end neural network training, MLOps, and academic research in machine learning are also beneficial. At a personal level we’re also looking for someone who is: Passionate More ❯

Safe Intelligence is on a mission to make AI safe and reliable for everyone. To help us achieve this, we're seeking a Front End Software Engineer to join our team! We're particularly looking for someone with strong front end engineering and Typescript experience and with some experience of backend development (ideally … hybrid with 3-4 days/week in the office in London (Hammersmith). We're excited to have you contribute to our mission! Responsibilities: As a Safe Intelligence Front End Software Engineer, you will: Make key contributions to software development on our TypeScript-based frontend systems, primarily utilizing React to craft intuitive and highly … data science tools and ML tools (e.g., NumPy, pandas, scikit-learn, PyTorch) and open-source contributions (especially Python-based) would be a bonus. Familiarity with CUDA, GPU-based computations, end-to-end neural network training, MLOps, and academic research in machine learning are also beneficial. At a personal level we’re also looking for someone who is: Passionate More ❯

Safe Intelligence is on a mission to make AI safe and reliable for everyone. To help us achieve this, we're seeking a Front End Software Engineer to join our team! We're particularly looking for someone with strong front end engineering and Typescript experience and with some experience of backend development (ideally … hybrid with 3-4 days/week in the office in London (Hammersmith). We're excited to have you contribute to our mission! Responsibilities: As a Safe Intelligence Front End Software Engineer, you will: Make key contributions to software development on our TypeScript-based frontend systems, primarily utilizing React to craft intuitive and highly … data science tools and ML tools (e.g., NumPy, pandas, scikit-learn, PyTorch) and open-source contributions (especially Python-based) would be a bonus. Familiarity with CUDA, GPU-based computations, end-to-end neural network training, MLOps, and academic research in machine learning are also beneficial. At a personal level we’re also looking for someone who is: Passionate More ❯

help the world's leading organizations unlock the value of technology and build a more sustainable, more inclusive worldWe are seeking a skilled and passionate UI Developer with strong front-end development experience to join our team. The ideal candidate will have hands-on expertise in modern UI technologies and frameworks, with a keen eye … using JavaScript , jQuery , HTML5 , CSS3 , and ReactJS . Implement and optimize styles using CSS preprocessors such as SASS or LESS. Work with JavaScript frameworks including Node.js to build scalable front-end solutions. Integrate APIs and handle asynchronous data using AJAX and JSON . Ensure compliance with accessibility standards and best practices. Apply Test-Driven Development … tools such as SonarQube , Grunt/Gulp , and npm for code quality and build automation. Conduct JavaScript unit testing to ensure code reliability and maintainability. Optimize network performance and front-end load times for enhanced user experience. Your Profile Strong proficiency in JavaScript , HTML5 , CSS3 , and ReactJS . Experience with CSS preprocessors (e.g., SASS, LESS). Solid understanding More ❯

important goals. The role... Reporting to the Product Director, the Fullstack Developer will be a key member of the Engineering team responsible for designing and implementing the customer-facing front end for Verdantix’s new software catalogue product as well as future AI-powered applications. This includes development of new web applications that integrate with … you’ll be doing... Build and maintain customer-facing websites and applications for Verdantix’s software catalogue and AI-powered products. Translate UX designs into responsive, performant, and scalable front-end experiences. Host new web platforms handing user permissioning and authentication in a manner that creates a single sign on UX for customers and is interoperable across various … platform builds. Develop and maintain APIs and integrations to connect front end with backend services and databases. Implement AI-enabled interfaces (e.g., semantic search, conversational UX) in collaboration with Product and Data Science teams. Create interactive data visualizations to present complex datasets to customers. Ensure best practices in performance, accessibility, and security across platforms. Capable of balancing between More ❯

important goals. The role... Reporting to the Product Director, the Fullstack Developer will be a key member of the Engineering team responsible for designing and implementing the customer-facing front end for Verdantix’s new software catalogue product as well as future AI-powered applications. This includes development of new web applications that integrate with … you’ll be doing... Build and maintain customer-facing websites and applications for Verdantix’s software catalogue and AI-powered products. Translate UX designs into responsive, performant, and scalable front-end experiences. Host new web platforms handing user permissioning and authentication in a manner that creates a single sign on UX for customers and is interoperable across various … platform builds. Develop and maintain APIs and integrations to connect front end with backend services and databases. Implement AI-enabled interfaces (e.g., semantic search, conversational UX) in collaboration with Product and Data Science teams. Create interactive data visualizations to present complex datasets to customers. Ensure best practices in performance, accessibility, and security across platforms. Capable of balancing between More ❯

Espire Infolabs is hiring for Front End Developer(React.js) for London, UK location. Role : Front End Developer(React.js) Location: London, UK(3 Days/Week onsite) Desired Industry Experience: 5+ years Relevant Experience: React.Js, Typescript, Azure Job Description: Proven experience as a Front-End Developer with a focus on React.js, and Typescript. Familiarity with … C# and .Net. Strong proficiency in JavaScript, ES6/ES7, and related front-end technologies. Familiarity with state management libraries such as Redux. Experience with version control systems, such as Git. Experience with the Web Content Accessibility Guidelines. Knowledge of responsive web design principles and CSS frameworks. Understanding of RESTful APIs and asynchronous data retrieval. Experience with unit More ❯

and execute their scientific workflows. You'll work at the intersection of backend, cloud, and frontend — a backend weighted role where you'll also interact with APi's and front end code in a Senior IC capacity. You’ll be a hands-on contributor who can move fluidly across the stack while also influencing architectural design. Experience building … scalable software in Python, contributing to the end to end software development process Ability to contribute in areas such as DevOps (Kubernetes) and Front end development (ReactJS modifications) Experience working with AWS Experience influencing the architecture and design of applications Tech Stack - Python, ReactJS, Kubernetes, APi's, websockets, AWS Contract More ❯

and execute their scientific workflows. You'll work at the intersection of backend, cloud, and frontend — a backend weighted role where you'll also interact with APi's and front end code in a Senior IC capacity. You’ll be a hands-on contributor who can move fluidly across the stack while also influencing architectural design. Experience building … scalable software in Python, contributing to the end to end software development process Ability to contribute in areas such as DevOps (Kubernetes) and Front end development (ReactJS modifications) Experience working with AWS Experience influencing the architecture and design of applications Tech Stack - Python, ReactJS, Kubernetes, APi's, websockets, AWS Contract More ❯

Director of Software Development and Engineering London W14 8TS, UK Req 13 February 2025 Company Overview: CACI Ltd is an international data and technology consultancy with £200m turnover and 1400 employees in the UK. Our business purpose is to 'do amazing things with data and technology' to drive value and make a difference on behalf of our … lifecycle, from initial concept through to delivery and maintenance. Establish a best-fit structure for the delivery and management of our software products, factoring in feature teams, front end development, DevOps and platform engineering etc. Implement best practices for software development, including agile methodologies, continuous integration, and automated testing. Establish … and enhance their processes. Skills and Experience: Proven experience in a senior software development role, with a track record of delivering successful software products across the end-to-end software delivery lifecycle Ability to review commercial business plans with Business Units, challenging as appropriate and turning them into software development programmes. Strong More ❯

Front End Developer |React |TypeScript| Node | 3 Months | Up to £550 per day (Outside IR35) We're looking for a skilled Front End Developer to join a fast-paced project environment. You'll work closely with a cross-functional team to deliver high-quality, scalable web applications using modern technologies. Key skills: Essential: Strong commercial experience … with JavaScript , React , and Node.js Proven ability with TypeScript and modern front-end development practices Experience integrating APIs and building performant, responsive interfaces Familiarity with modern tooling and CI/CD pipelines Confident using Git and working in collaborative environments What's on offer: 3-month initial contract with potential for extension Up to More ❯