1 to 25 of 44 Front-End Developer (Client-Side Developer) Jobs in the City of London

being too big to fail. They have approximately 200 million customer accounts and do business in more than 160 countries. We are seeking a hands-on UI Developer with solid experience in modern JavaScript/TypeScript, React and Angular, Node.js, and NPM. The ideal candidate should be passionate about writing clean, high-quality code and implementing More ❯

and delivering autonomous AI teams that work alongside humans to solve real-world problems. As we continue to expand our product offerings, we are seeking a talented Front-End Developer to help shape the future of human-AI collaboration. In this role, you'll build intuitive dashboards that allow users to configure … interfaces to solve one of the AI era’s biggest challenges: making complex systems usable through powerful, non-chat user experiences. Key Responsibilities Develop, maintain, and optimize front-end components for modern web applications Implement responsive, mobile-friendly designs that ensure cross-platform compatibility Translate wireframes and prototypes into polished, production-ready applications in collaboration with … UX/UI designers Integrate front-end interfaces with REST and GraphQL APIs, as well as back-end systems Ensure high-quality, maintainable code through testing, debugging, and adherence to best practices Stay current with emerging UI/UX technologies to continuously improve the user experience Participate in agile development processes, including Test Driven More ❯

to develop advanced risk analysis and continuous risk monitoring or revenue optimization for asset managers. Mintus helps financial institutions increase their market share and yield. Job Title: Front-End Developer (Mid to Senior Level) Location: Hybrid (London/Remote) Type: Full-time What You’ll Do Lead the development of intuitive, responsive … performance across browsers and devices Build interactive charts and data visualisations Maintain design consistency across components and modules What We’re Looking For 3–6 years of front-end development experience Proficiency in React.js (or similar frameworks like Vue.js or Angular) Solid understanding of JavaScript, HTML5, and CSS3 Experience with state management tools (Redux, Context API More ❯

tutoring company and best Edtech company. We are looking for a Front-End WordPress Developer to take ownership of front-end updates and enhancements for our websites. You will work closely with cross-functional teams to deliver visually appealing, highly functional, and performance-optimised platforms that delight our … users. Key Responsibilities Front-End Development: Implement new features, components, and layouts using WordPress, HTML5, CSS3, and JavaScript. Content Management: Update and maintain website content in alignment with branding and SEO strategies. Responsive Design: Ensure a flawless user experience across all devices and browsers. Performance Optimisation: Optimise website performance, including loading speed, code structure, and accessibility. … Collaboration: Work with team members to enhance various aspects of UX/UI/SEO. Bug Fixing: Identify and address front-end issues promptly to maintain platform reliability. Plugin Management: Configure, update, and troubleshoot WordPress plugins to enhance functionality. Quality Assurance: Conduct regular testing for browser and device compatibility and resolve any issues. Essential Skills Advanced More ❯

Senior React Developer London, United Kingdom · Full-time Description A fast-growing investment technology platform is seeking a talented Senior React Developer to join its frontend development team. The successful candidate will work on a suite of web applications supporting trade execution, portfolio management, and risk analysis across private equity, private debt More ❯

Working on behalf of a leading Tier 1 investment bank who are looking to make a hire for a strong Frontend Developer at the AVP level for their Global Financing and Credit Team. This team are a leading market maker of Credit products on major Dealer to Client platforms. Your key responsibilities Working in More ❯

/UI and frontend architecture of a critical, enterprise-scale system that will impact thousands of users daily. 🔧 Your Role As the Lead UX/UI Frontend Developer , you'll take ownership of the frontend strategy, design system, and component architecture. You’ll collaborate closely with product managers, UX designers, backend engineers, and key stakeholders to More ❯

Job Title: Senior Front-End Developer/React Developer Duration: 6 Months Location: London Area, UK (2 Days per week) 8 Hours a day - 40 Hours Per week. What you'll do: Create extremely well-crafted front-end web applications using React.js and Next.js … Server Side Rendered (SSR) web applications, making use of AWS Lambda Write resilient code that will be continuously tested, deployed, and performed at scale Test front-end applications end-to-end with unit, functional, integration, visual regression, and Lighthouse testing Be part of a self-organising and cross-functional Agile More ❯

Our client, a global branding, marketing, and communications agency, is looking for an ambitious , collaborative and client facing web developer to join their digital team. The successful candidate will work closely with specialists across various disciplines - including design, SEO, paid media, and strategy - and contribute to a dynamic website development group. This More ❯

Position: Front End JavaScript Developer Reports to: Front End Development Team Lead Hours: 40 hours Location: 3 days … in North London office (Monday – Wednesday) Salary: £60 - £80,000 + eligibility for performance bonus Start date: ASAP Purpose of the role: As a Front End Developer you will join one of our multinational Scrum teams to create state-of-the-art software solutions. In all teams we cooperate with internal and … or Nest.js. · Demonstrated ability to thrive in an Agile environment. · Proficient in addressing cross-browser compatibility issues and employing effective strategies to resolve them. · Well-versed in front-end build tools, such as Webpack. · Skilled in utilizing code versioning tools, notably Git. · Sound understanding of browser rendering behavior and techniques to optimize performance. · Capable of developing More ❯

Senior React Frontend Engineer - Global Investment Bank A leading global investment bank are looking for a Senior Frontend Engineer within their Credit Trading Technology division. They are a market-leading institution with a strong presence in credit products and dealer More ❯

Benefits Package. Permanent. Fully Remote. *Must be Eligible to work in the UK. Innovative Data & Insights Research organization providing Insights for leading International Brands requires a talented Front-End Developer. The role will partner with a team of Data Scientists. Role: Front End Development. User Experience Design/Development. Partner with a … team of Data Scientists & Software Engineers. User Interfaces - Design & Construct intuitive & responsive User Interfaces. Experience Required: Front-End Development - 3+ years’ experience. React.js. GraphQL. Typescript. Tailwind. RESTful API. Innovative approach - ability to compose your own ideas. Communicate effectively with technical & non-technical stakeholders. Ability to work remotely. Desirable Experience: Backend Development Node JS AWS JSON Web … Tokens with AWS. Keywords: Front End Developer, React.js, React, GraphQL, Tailwind, Typescript, Tailwind, Code Versioning Tools, Front End Developer, Fully Remote, Permanent, T6/MN/115109. More ❯

include: Implement defined features through code development, while also conducting thorough investigations and resolution of bugs Develop modular, reusable code components to streamline development and maintenance Utilize front-end frameworks like Vue.js, or Angular to create scalable and reusable UI components Optimize code and assets to ensure optimal load times and smooth performance Perform code reviews More ❯

and important projects for the future of the bank. Our new Savings platform is in development, and we need an experienced engineer to take ownership of the front-end and guide us on best practices, high-quality solutions and innovative solutions. This role offers a chance for a skilled engineer to deepen their domain expertise in … best practice, mentor and coach junior members of the team to support their development. Qualifications JavaScript & React JS- You will use React JS to build out the front-end presentation layers of our products. React Native and Expo - You will be helping to build mobile apps and publish via Google Play and Apple App Store Front-end testing- You will need experience testing front-end systems, using tools like Playwright or similar, to ensure high-quality code. Cloud Experience (ideally Azure)- You will need a solid understanding of cloud fundamentals for the wider migration to the cloud as part of our technical transformation. Microservices- You will need a More ❯

Role – Front-End Developer Office travel – Hybrid (3 Days a week in the office) Location – Central London Salary – £80,000 - £90,000 + Benefits Infinite Talent have partnered with a renewable energy start-up backed by a global business to recruit for two Front End Developers on a More ❯

Lead Front End Admin Developer - Exciting SportsTech Company - London/Hybrid - £65k-£75k + bens and perks Incredible opportunity for an experienced Front End Admin Developer Join a fantastic, international SportsTech company Stunning offices in London with on-site restaurant Hybrid working offered £65k … 75k (dependent on experience) Essential skills required (see below) We’re on the hunt for an experienced Front End Admin Developer to join the Development Team of a truly exciting sports tech company as a Lead Front End Admin Developer. We’re looking for someone who has demonstrable … permanent UK right to work is required. APPLY NOW! Ensure your CV showcases your skills and capabilities and submit it ASAP, quoting ‘AE - Lead Front End Developer - Sports Tech - London More ❯

Senior React Developer required for an exciting sports technology start up with a fantastic product based around fan interaction during live sporting events. You will be joining a business who are already at the forefront of their industry and have a small but highly skilled team. The primary skills required are React + Typescript, and if … this Senior React Developer/Senior Frontend Developer role we are looking for an experienced Senior Front End Developer to work remotely apart from 1-2 days a month where you would need to come to the London office or go to client … quarterly international team meetup. Want to work as a Senior React Developer/Typescript Developer/Front End Developer on a fantastic, cutting-edge product? Want to work with the latest technology and continually evolve? My client are offering fully remote working More ❯

plus bonus Harrington Starr has partnered up with a Global Investment Bank in the City of London who are looking to hire a Senior UI Trading Software Developer to work in a Front Office environment with Traders, Quants and Portfolio Managers within a Front Office Trading Floor. This is a high profile … role for a Multi Asset Trading Team within a Front Office environment. As the Senior Trading UI Developer, you will have extensive experience of working with the JavaScript Framework including ES7 and HTML and CSS. You will be working directly with Portfolio Managers, Sales Traders and Quants and end users where you More ❯

Senior Frontend Developer (React) | FinTech | Hybrid London | up to £80,000 + 10% bonus Company Overview: We are working with a client who is a leading Private Equity Data Analytics firm. They transform complex PE data into actionable insights for CIOs, CFOs, and General Partners, using AI to predict future fund performance. Role: They … re seeking a Senior Frontend Developer with strong expertise in React and TypeScript to enhance the user experience of their data analytics platforms. You'll be a key contributor in building intuitive and responsive interfaces. Responsibilities: Develop, maintain, and improve complex frontend applications using React and TypeScript. Collaborate with designers and backend developers to implement high More ❯

Senior Frontend Developer (React) 2-3 days p/week in London Up to £85k plus equity Would you like the opportunity to join an organisation looking to revolutionise the construction space? They have significantly increased their customer base recently and are now actively seeking a Senior Frontend Developer (React). As … a Senior Frontend (React) Developer, you will be responsible for taking their product to the next level, direct reporting to their Head of Engineering. You will be directly responsible for developing and maintaining their frontend application, will also working closely with their designers, product owner and data team. The team are built around working together, collaborating … Enjoy coming to the office and working in a small team. Vercel deployments from GitHub, with GitHub Actions is a bonus. If you’re a Senior Frontend Developer (React) looking to have an impact in an early-stage start-up, please apply. More ❯

Senior Frontend Developer London Up to £85,000 + Bonus Angular, Typescript We've partnered with a globally successful retail organisation who have built out a creative digital-incubator with an emphasis on unique in-person digital signage & interaction. They're seeking a Senior Frontend Developer with strong expertise in Angular as … autonomy you would usually associate with a start-up, but with the security and scalability of working for a high-performing & large company. As a Senior Frontend Developer, you will have the following: Demonstrable commercial experience in modern Angular 17 + frontend engineering A strong grounding in modern agile best practices and engineering principles Strong communication … to £85,000 London Office - 4 days per week onsite Discretionary Bonus Private Medical Insurance Unlimited Holiday Days This is a great opportunity for a Senior Frontend Developer with strong expertise in Angular to make a real impact in a retail organisation on a big upwards trajectory More ❯

Front-End Developer (React/Python) (TOP Investment Manager!) Join to apply for the Front-End Developer (React/Python) (TOP Investment Manager!) role at Staging It Front-End Developer (React/Python) (TOP Investment Manager … days ago Be among the first 25 applicants Join to apply for the Front-End Developer (React/Python) (TOP Investment Manager!) role at Staging It Get AI-powered advice on this job and more exclusive features. Are you a passionate Front-End Developer … add components, optimize queries and ensure security of the application. You will also get exposure to the existing python backend. Summary This position is ideal for a front-end developer looking to deepen their expertise in React while gaining exposure to Python backend development. You will work in a collaborative environment that More ❯

Front-End Developer (stealth mode start-up) A stealth mode start-up, recently established by a team of highly experienced engineers and entrepreneurs with substantial financial backing and a proven history of successful technology ventures, is seeking a Front-End Developer with a minimum … will include Typescript, but solid JavaScript is ok. Experience of React is 99% essential and Vue.js is a nice to have. This position is perfect for a Front-End Developer eager to pioneer novel technologies. You'll work closely with a dynamic team, facing unique challenges and bringing bold ideas to life. … of success through employing top-tier software engineers, they maintain high standards but also offer competitive compensation. Additionally, the package includes potentially very lucrative stock options. Ideal Front-End Developers should possess robust programming abilities coupled with an outstanding academic history, preferably from top-tier university. The company recognises that their exceptional products and commercial success More ❯

life. We also have a small number of B2B clients including the University of Cambridge, Oxford and Imperial College London among others. We are looking for a Front-End Developer to help improve our online whiteboard Bitpaper, which is used by thousands of teachers and students to deliver online classes. You will … with a cross-product team to deliver visually appealing, highly functional, and a performance-optimised app that delights our users. Role: We are looking for an experienced front-end developer, who enjoys building user-centric browser apps, to help develop our online whiteboard Bitpaper (www.bitpaper.io). The ideal candidate would help develop … working in a wider tech team of seven people and be based in our Canary wharf office in London. Essential Requirements: 2 + years of experience in front-end development. Canvas and SVG Javascript/typescript React and similar frameworks like Next.js Git for version control Strong grasp of the English language with the ability to More ❯

An exciting opportunity to join a one of the most profitable Global Hedge Funds, working closely with members of trading desks and other development teams. You are expected to provide technical expertise to enhance, support and refresh the front More ❯