26 to 50 of 112 Senior Front-End Engineer (Client-Side Engineer) Jobs in London

Senior Frontend Engineer - Poland, Remote Join to apply for the Senior Frontend Engineer - Poland, Remote role at Plentific About Us At Plentific, we’re redefining property management in real time. Our mission is to … technical documentation for code, algorithms, and APIs. Assist in drafting end-user manuals. Identify and promote front-end best practices. Skills Expertise in TypeScript or JavaScript (ES6) and styling libraries. Strong understanding of React and related patterns. Knowledge … of UI/UX best practices. Experience with front-end observability tools like Sentry, LogRocket, Datadog, or New Relic. Familiarity with CI/CD pipelines such as GitHub Actions and ArgoCD. Awareness of front-end More ❯

product and engineering solutions thereby accelerating our growth. To do this, we are looking to hire a senior front-end engineer to our Engineering team. These roles are critical to expanding our engineering capabilities More ❯

and fair financial future, one piece of software at a time. We are looking to hire a Senior Front-End Engineer to join our Institutional team in our London office. Blockchain.com is a high … NEED The foremost quality for this position or any position at Blockchain.com is integrity. +5 years of experience working with JavaScript and client-side web applications preferred. Experience building innovative data visualizations. You thrive on learning new technologies and don’t believe in one-size-fits … Cursor to enhance productivity and streamline coding workflow. You have experience interacting with crypto apps. You have experience working with Front-End architecture, testing and state management solutions. You should be able to adapt easily to meet the needs of our massive More ❯

fair financial future, one piece of software at a time. We are seeking a proactive and skilled Senior Front-End Engineer to join our lean, high-impact team and help shape the future of … that push the boundaries of decentralized technology. In this role, you’ll lead by example—guiding technical discussions, shaping our front-end architecture, and championing best-in-class engineering practices. With a hands-on mindset and a passion for efficiency, you’ll … get the job done. WHAT YOU WILL NEED Web3 Expertise : Proven experience with blockchain technologies, cryptocurrencies, and Web3 development, including proficiency in client-side signing and crypto transaction handling (e.g., Bitcoin, Ethereum). Technical Skills : Strong command of React, Web3 libraries (e.g., web3.js, ethers.js) and wallet More ❯

Senior Software Engineer (Fullstack, Frontend Leaning) London, United Kingdom The Team & Role SevenRooms is hiring a remote Senior Fullstack Engineer (frontend leaning) . We're looking for a strong developer who is excited to … engineer highly performant, mission-critical systems that are designed for agile development and rapid scaling. You will partner with other engineers, product managers and designers who are dedicated to engineering real solutions that empower SevenRooms for growth. You will report directly to our team … you presently based in the United Kingdom? Select Do you have at least 4 years of professional experience as a Software Engineer? Select Do you have experience working within a SaaS environment? Select Do you have experience with React? Select Would you like to More ❯

required to join Satalia, a VML Enterprise Solutions company, on a contract basis. As a Senior Front-End Engineer, you won't just be writing code; you'll be a pivotal architect … offers the unique opportunity to drive technical excellence by championing code quality, robust testing (Vitest, Cypress), and best practices in front-end architecture, performance, and accessibility. You'll thrive in an Agile environment, contributing actively to workstreams, while also building modular, reusable … on complex projects, then get in touch. What you'll be doing: Creating prototypes and high-quality production ready React front-end single page applications. Driving forward the quality - in code, unit testing, accessibility, performance, code reviews. Delivering on an Agile workstream More ❯

exceptional digital experiences and takes pride in crafting exceptional code. What does the job involve? Build reusable UI components and front-end libraries for future use. Collaborate with designers to translate design mock-ups and wireframes into clean, maintainable React code. Optimise … in code reviews and provide constructive feedback. We're looking for someone who has: Multiple years of experience user focused front-end development for enterprise products. Has a strong command of React, including JSX, components, state management, and routing. Has experience with … popular React libraries and frameworks and the front-end build toolchain (Webpack, babel etc.). Possesses deep expertise in JavaScript, HTML5, SCSS, tailwind, material UI and CSS3. Demonstrates working knowledge of WCAG and accessibility best practices. Enjoys building reusable UI components and More ❯

existing workflows, providing a trusted platform that connects AI agents with workplace tools and applications. As a Senior Front-End Engineer you will: Build and ship features for North, our AI workspace platform Develop … able to read and understand, and even fix issues outside of the main code base You have built and deployed extremely performant client-side or server-side RAG/agentic applications to millions of users. Bonus: You love art and have an eye for More ❯

Senior Fullstack Engineer (Frontend focused) London Ebury is a leading global fintech company that empowers businesses to trade and grow internationally. It offers a comprehensive suite of products, including international payments and collections, FX risk management, trade finance, and API integrations. Founded … García, Ebury is one of the fastest-growing global fintechs, with over 1,700 employees and 38 offices in more than 25 countries. Senior Fullstack Engineer (Frontend focused) London Office - Hybrid: 4 days in the office, 1 day working from home We … are seeking a frontend-focused full-stack engineer to play a crucial part in our Channels Core team. In this role, you will be working on evolving our customer-facing portals for the scale Ebury wants to operate in by developing tooling and processes More ❯

Senior Frontend Engineer – React, Typescript, Linux, HTML, Financial services, Front End – Hybrid, London, Permanent. - £75,000 p.a - £86,000 p.a My client, a leading global financial organisation, is currently looking for an experienced Senior Front End Engineer to join the organisation. You will be joining the core Credit Flow pre-trade engineering team and … of financial systems and concepts is highly beneficial. This is an excellent opportunity for an experienced Front End Engineer to join a rapidly evolving organization. #J-18808-Ljbffr More ❯

Job Description Senior Frontend Product Engineer £85k–£110k + Equity Hybrid (London – 3 days/week onsite) Mission-Driven Our client, an ambitious and rapidly growing health tech company, is seeking a Senior Frontend Product Engineer … high-quality, intuitive web applications that support the health and well-being of 100k's users. This is an excellent opportunity for a Senior Backend Product Engineer looking to build something that contributes meaningfully to people's lives, in a fast-paced … environment where your work has genuine real-world impact. This is a great opportunity for a backend engineer that has great product sense. Requirements Familiar with user analytics, feature flagging and observability tools. You default to data to guide your decision-making. You work More ❯

Senior Software Engineer - Front End Infrastructure London, England Intercom is the AI Customer Service company on a mission to help businesses provide incredible customer experiences. Our AI agent Fin, the most advanced customer service … boundaries, build with speed and intensity, and consistently deliver incredible value to our customers. What’s the opportunity? We are looking for a Senior Frontend Engineer to join our Frontend Tech platform team . This is an excellent opportunity to join a More ❯

ROLE: Senior Frontend Engineer (6 month contract) Two Circles is a global sports agency. We drive growth for sports properties by delivering deeper connections with fans, through the intelligent use of data and technology. We work with some of the world's … participation, sponsorship and media. JOB DESCRIPTION As part of our ongoing growth, we are expanding our technical team and looking for an experienced Senior Full Stack Engineer to join our London office. The chosen person will play an important role in influencing More ❯

How you'll be contributing to Accurx as a Senior Frontend Engineer... As a Senior Frontend Engineer, you will work closely with your Product Team and pod in scaling and innovating our product like never before, with the opportunity to … part of a cross-functional team of other engineers, Product Managers and UX Designers. Every day you’ll apply the “product engineer” mindset, being close to users and their needs, collaborating in user research by joining sessions with patients and their healthcare teams, building … by sharing knowledge and best practices. We'd really like to hear from you, if ... You have proven consistent success as a Senior Frontend or Senior Full Stack Developer, showcasing a broad impact on business outcomes. Ideally you will have experience in React but we More ❯

Products Solutions Resources Developers Company Pricing Get started Book a Demo Senior Frontend Engineer Engineering London Full-time About Conduktor Conduktor is an Enterprise Data Management (EDM) platform that specialises in streaming. We empower industry leaders to implement their Streaming Data Strategy … us, hybrid means being in the office together on Mondays, Wednesdays, and Thursdays. About the role We’re seeking a talented and collaborative Senior Frontend Engineer to join our London-based team. In this role, you’ll help us create beautiful user More ❯

Social network you want to login/join with: Senior Front End Engineer, south west london col-narrow-left Client: Location: south west london, United Kingdom Job Category: Other - EU work permit … Job Views: 2 Posted: 06.06.2025 Expiry Date: 21.07.2025 col-wide Job Description: Role: Senior Front End Engineer Location: Remote, UK As a Senior Front End Engineer, you’ll play a key role in shaping the user experience for thousands of pet owners and veterinarians. You’ll work closely with product, design, and backend teams to deliver fast, accessible, and beautifully crafted features. Your work will More ❯

About the Opportunity Shape the Future of Digital Content as a Senior Fullstack Engineer - with focus on Frontend with Contentful Studio. Become a key architect of the future at Contentful, where we are redefining how the world interacts with digital content. Take … on-brand digital experiences at scale-shaping the future of how brands connect with their audiences. We are seeking a Product Engineer who thrives on solving tough challenges, driving transformative solutions, and pushing the boundaries of what's possible. You will build tools that … and experimental mindset to chase moving targets effectively. What you need to be successful Extensive Full Stack Expertise : Proven track record as a Senior Fullstack Software Engineer with substantial experience using TypeScript, React, and Node.js. Demonstrable Leadership : Proven experience in a senior More ❯

user interfaces. Proficiency in either Angular or React is essential for this role, along with a deep understanding of modern front-end development principles and best practices. You will be a part of a vibrant group, collaborating with specialist and business teams … quality code in Angular or React, ensuring compatibility across multiple browsers and devices. Work closely with backend engineers to integrate front-end components with backend services and APIs. Optimize application performance and user experience through efficient front-end … feedback to peers to maintain code quality and consistency. Stay up-to-date with the latest trends and advancements in front-end development, and share knowledge with the team. Skills and Experience At WPP Media, we believe in the power of our More ❯

the future while simultaneously delivering for the present. There’s a lot of space to learn, grow, and supercharge your career. As a Senior Engineer, you will: Drive the engineering direction across website projects and digital experiences, with the ability to produce … d like to see in you: 3+ years experience in an engineering role Extensive agency or start-up experience as an engineer, ideally having worked closely with different types of clients in a range of different industries. Strong, demonstrable experience in TypeScript, HTML, and … with cross functional team members as well as broaden your connections across the organisation. Participate in the interview process for other engineer candidates. Have at least two large projects under your belt, plus numerous contributions to smaller projects. Feel entirely confident taking on a More ❯

recruit, develop, and retain the most talented people from a diverse candidate pool and we're hiring! We are looking for an experienced Senior Frontend Engineer to help build out a groundbreaking FinTech application from the ground up, which will become a More ❯

Role : Senior Full Stack Engineer (FE or BE focussed) Salary range : 90-170k (+equity) Location : x3 days pw onsite in Central London (Mon/Wed/Fri) Tech stack includes : React, Typescript, Tailwind, Python & Postgres. Current team size: x6 engineers Senior Full Stack Engineer required on a Permanent basis for an early stage Edtech startup that is creating … e-learning tools using AI. 2.5 year runway, grew 11x last year, using gamification to help learning! Whilst it's titled as a Senior role, they're looking for very experienced engineers who've been technical co founders/founding engineers that have built and scaled businesses. Essentials More ❯

Role : Senior Full Stack Engineer (FE or BE focussed) Salary range : 90-170k (+equity) Location : x3 days pw onsite in Central London (Mon/Wed/Fri) Tech stack includes : React, Typescript, Tailwind, Python & Postgres. Current team size: x6 engineers Senior Full Stack Engineer required on a Permanent basis for an early stage Edtech startup that is creating … e-learning tools using AI. 2.5 year runway, grew 11x last year, using gamification to help learning! Whilst it's titled as a Senior role, they're looking for very experienced engineers who've been technical co founders/founding engineers that have built and scaled businesses. Essentials More ❯

Role : Senior Full Stack Engineer (FE or BE focussed) Salary range : 90-170k (+equity) Location : x3 days pw onsite in Central London (Mon/Wed/Fri) Tech stack includes : React, Typescript, Tailwind, Python & Postgres. Current team size: x6 engineers Senior Full Stack Engineer required on a Permanent basis for an early stage Edtech startup that is creating … e-learning tools using AI. 2.5 year runway, grew 11x last year, using gamification to help learning! Whilst it's titled as a Senior role, they're looking for very experienced engineers who've been technical co founders/founding engineers that have built and scaled businesses. Essentials More ❯

Social network you want to login/join with: Senior Frontend Engineer - Vue/TypeScript/TDD - Renewable Energy Company - Up to £85k, London Client: Opus Recruitment Solutions Location: London, United Kingdom Job Category: Other EU work permit required: Yes … Job Views: 4 Posted: 28.04.2025 Expiry Date: 12.06.2025 Job Description: A leading company in the Renewable Energy space is looking for a Senior Frontend Engineer to join their highly skilled engineering team. In this role, you will join their engineering function and More ❯

teams to ensure seamless integration and create responsive, high-performance web applications. This role is ideal for an experienced front-end developer who can lead projects, solve complex challenges, and contribute to the overall user experience. You’ll be expected to … maintain high code quality standards, mentor junior developers, and stay up-to-date with emerging trends in front-end development. Key Responsibilities: Develop and maintain responsive, dynamic, and engaging web interfaces using modern JavaScript frameworks such as React, Angular, or Vue.js. Collaborate … and end-to-end) to ensure the reliability and stability of the front-end codebase. About You: Deep knowledge of JavaScript (ES6+) and hands-on experience with modern frameworks/libraries such as Next.js More ❯