Frontend Engineer Jobs in London, UK

Senior Frontend Engineer - RiskOS at Socure. Apply via Ashby.

Staff Frontend Engineer- RiskOs at Socure. Apply via Ashby.

Frontend Engineer (Mid-Level) at Motorway. Apply via Ashby.

Valarian Technologies is a dual-use technology company building critical tools to safeguard the future in an era of evolving global security challenges. We're rethinking security beyond traditional military domains, addressing asymmetric threats that impact our technological advantage, economic strength, and democratic institutions.   We build Acra – the platform foundation for everything we do as a dual-use technology company. The platform’s name, rooted in the Greek word for citadel (or, fortress), reflects the design and purpose of our infrastructure-agnostic secure enclaves: protecting critical data. Some of the government and commercial workflows include: increased operational resiliency for mission-critical systems and functions; enabling organizations to more quickly and widely adopt emerging technologies while ensuring the integrity of their intellectual property; information flow during disaster response scenarios, and zero-trust / least-privilege environments for M&A, attorney-client privileged communications, etc. And we’ve only scratched the surface.   At our core, we're driven by a shared mission and a belief in making a tangible impact on our world. Whether you join our London HQ or the wider global organisation, you’ll be a part of collaborative, high-performing teams, creating cutting-edge software, platforms, and infrastructure.     The Role   You will build frontend systems for secure compute, governed data, and operational workflows running in high-trust environments.   You will work across product, engineering, and customer teams to design and ship interfaces for governance systems, runtime environments, orchestration workflows, and controlled execution environments. You will contribute to scalable frontend architecture, reusable operational feature systems, shared platform primitives, and composable application patterns across both control plane and runtime domains. We are evolving the frontend platform toward independently deployable and composable application architecture, with shared interaction systems, reusable workflows, and clear ownership boundaries across the platform.   We’re looking for engineers who are comfortable contributing across product decisions, frontend architecture, platform evolution, and user experience.   What you’ll do: Help evolve frontend architecture for composable and independently deployable applications Build and ship frontend features end-to-end Build well-tested, production-grade frontend systems Contribute to product and UX decisions across the platform Design interfaces for complex operational and data workflows Develop scalable Vue/React + TypeScript applications and reusable component systems Write high-quality code that can be easily understood and leveraged by others. Work closely with product, engineering, and customers to shape workflows and validate solutions What we are looking for:    Strong experience building and shipping production Vue/React + TypeScript applications Strong understanding of frontend architecture, state management, and API integration Good product and UX instincts with attention to usability and performance Ability to take ownership of features and deliver independently Comfortable operating in fast-moving and ambiguous environments Strong communication and collaboration skills Experience building reusable UI systems or component libraries Experience designing composable frontend systems, reusable workflows, or modular application architectures   Nice to have: Experience with real-time or data-heavy applications Familiarity with secure or high-trust environments Experience with visualisation libraries or complex operational workflows   Benefits:   Our benefits are designed to ensure our employees feel taken care of and are proud to be a part of the Valarian team. We are committed to consistently enhancing our benefit package, taking into account the overall well-being and needs of our teammates. Here are the key benefits accessible to all employees at Valarian Technologies: Equity – because you have the right to own what you’re building A competitive salary – because we value your unique skills Employer pension contributions – because you deserve a secure future Hybrid work setup – because everyone has different needs Rewarding company retreats and meetups that respect your work/life balance – because we love getting to know each other! Life at Valarian Our culture is built on inclusivity, compassion and flexibility – we want everyone to be empowered to achieve their goals at Valarian.   The world is changing, and so is our way of working. If you want to join us in the London office – it’s quite nice! – you’re welcome to; and if you’d prefer to work remotely, that’s fine too.   And as we build elegant solutions to simplify the complexities of business collaboration, we also simplify work life: contribute wherever and whenever allows you to be your best self. We trust each other to consistently raise the bar, and we challenge each other to continually reach new heights.

The Rights Systems team builds and operates Spotify Rights Center (SRC), Spotify’s rights management platform that enables the company and its partners to identify, manage, and enforce music licensing rights across creator- and artist-generated content. Comparable in scope to YouTube’s Content ID, SRC is designed specifically for Spotify’s ecosystem and plays an important role in supporting new formats like video and other emerging content types. Over the past year the team launched SRC from inception to a fully operational production platform, now live and used by real rightsholders. The platform includes automated content scanning, policy management, enforcement pipelines, dispute workflows, and analytics. The team has grown from a single squad to three squads (approximately 29 engineers, designers, and product specialists) and continues to scale as a strategic investment area for Spotify over the next several years.

Join Pigment: Transforming Business Planning and Performance with AI     Founded in 2019, Pigment stands out as one of the fastest-growing SaaS companies globally, redefining business planning and performance with our AI-powered platform. We empower organizations across diverse industries, including Consumer Packaged Goods, Retail, and Technology, to seamlessly integrate data, people, and processes, enabling them to plan and adapt rapidly.     With a vibrant team of over 500 professionals across North America and Europe, and offices in New York, Toronto, London, Paris, and the Bay Area, Pigment has successfully secured nearly $400 million in funding from leading global venture capitalists. Our recognition as a Visionary in the 2024 Gartner® Magic Quadrant™ for Financial Planning Software underscores our commitment to excellence, as we proudly partner with industry leaders like Unilever, Vinci, Kayak, Siemens, and Coca-Cola.     At Pigment, we champion smart risks, celebrate bold ideas, and challenge the status quo—all as a united team. Every team member has the opportunity to make a significant impact and tackle ambitious challenges. Together, we pursue excellence with a collaborative spirit, continuously raising the bar to ensure strong performance and a proactive approach while fostering an environment of humility.     If you are passionate about innovation and wish to collaborate with some of the brightest minds in the industry, we would love to hear from you!   🚀 The Opportunity:   Join our Product Community team as a Frontend Software Engineer and play a key role in shaping cutting-edge user experiences! You'll work on exciting, high-impact projects ranging from AI-powered features to rich data visualizations while collaborating closely with talented backend engineers and product managers.   Here’s why this is an exciting opportunity:   ✨ Innovate with AI: Implement intelligent features that guide users and streamline complex workflows. 📊 Visualize Complex Data: Build and optimize advanced data visualizations like charts, maps, and real-time dashboards. 🎨 Shape the Design System: Influence and maintain our proprietary design system to deliver consistent, high-performance UIs.🔍 Tackle Real Challenges: Solve complex problems involving large datasets, real-time updates, and system performance. 📈 Drive the Future: Be part of a forward-thinking team that embraces new technologies and continuous learning.   If you're passionate about building elegant, scalable UIs and enjoy collaborating across teams, this is the perfect place to grow your career!   Who You Are:   We value strong software engineering skills and a proactive mindset. You should be able to translate complex functional requirements into elegant designs and high-quality code. You are also comfortable working across teams to ensure the frontend experience aligns with backend capabilities.   In any case, you have:   - Strong experience as a software engineer working on production systems. - Proven expertise in building scalable UIs with React and TypeScript. - A track record of collaborating with backend engineers to shape API design and optimize data consumption. - Experience working with design systems, performance optimization, and handling large datasets. - Strong communication skills and a problem-solving attitude. - A good dose of humility and the willingness to grow (no matter your seniority!). - A fluent level in English (French is not required).   Your Responsibilities:   - Build and maintain user interfaces for client-facing features, ensuring high-quality and performant UI delivery. - Collaborate with backend engineers and product managers to design, develop, and deliver new features while offering technical input on API design and data handling. - Implement and enhance AI-driven capabilities that assist users with complex workflows (e.g., generating actionable insights). - Develop advanced data visualizations (charts, maps, dashboards) that provide users with real-time, interactive insights. - Contribute to and maintain our internal design system, including custom caching mechanisms and advanced state management solutions. - Continuously balance delivering new features with ongoing maintenance and performance optimization. - Proactively identify and resolve issues while ensuring continuous delivery and improving technical processes.   Current Projects You'll Work On:   - AI Capabilities: Implementing intelligent features that guide users and enhance their workflows. - Data Visualizations: Building and optimizing rich, interactive views to present complex datasets clearly and efficiently. - Design System: Maintaining and evolving our proprietary design system to improve development speed and UI consistency. -Technology Migration: Evaluating and adopting new technologies to keep our platform modern and efficient.   Technical Challenges:   - Balancing feature delivery with system maintenance and performance improvements. - Implementing real-time updates and managing large-scale data visualizations. - Collaborating across teams to influence API design and ensure seamless frontend-backend integration.   Our Tech Stack:   - Languages & Frameworks: React (TypeScript) - Testing Tools: Vitest (unit testing), Cypress (E2E testing) - Build Tools: Vite (for local development and production bundling) - Custom Solutions: Internal design system, advanced caching mechanisms, and proprietary state management built on top of open-source technologies.   About the Team:   - Mission: Deliver client-facing features that enhance the user experience while providing technical leadership and guidance on UI decisions. - Structure: Product Community is a collaborative group of teams (e.g., AI, Views) responsible for different areas of the product. Engineers are encouraged to share knowledge and can move across squads based on their interests. - Size: Approximately 30 engineers across the Product division, working in small, focused squads with a mix of frontend and backend specialists. - Collaboration: Regularly engage with backend engineers, product managers, and designers to deliver robust, user-centric solutions.   #LI-HYBRID #LI-CK1

Lead Software Engineer - Frontend Engineering - React Native 210755745 T10:15:37+00:00 London Software Engineering Full time We know that people want great value combined with an excellent experience from a bank they can trust, so we launched our digital bank, Chase UK, to revolutionize mobile banking with seamless journeys that our customers love. We're already trusted by millions in the US and we're quickly catching up in the UK - but how we d...

The AI-powered OS for beauty, wellness and self-care About Fresha Fresha is the AI-powered operating system for the global beauty, wellness and self-care industry, connecting and powering everything from salons and barbers to spas, medspas, fitness studios and health practices. Trusted by millions of consumers and businesses worldwide. Fresha is used by 140,000+ businesses and 450,000+ stylists and professionals worldwide, processing over 1 billion appointments to date. The company is headquartered in London, United Kingdom, with 15 global offices located across North America, EMEA and APAC. Fresha allows consumers to discover, book and pay for beauty and wellness appointments with local businesses via its marketplace, while beauty and wellness businesses and professionals use an all-in-one platform to manage their entire operations with an intuitive business software and financial technology solutions.   Fresha’s ecosystem gives merchants everything they need to run their business seamlessly by facilitating appointment bookings, point-of-sale, customer records management, marketing automation, loyalty, beauty products inventory and team management.   The consumer marketplace unlocks revenue potential for partner businesses by leveraging the power of online bookings and automated marketing through mobile apps and advanced integrations with major tech brands including Instagram, Facebook and Google. Role Overview   At Fresha, we believe AI is a force multiplier for feature delivery, not just a coding assistant. We provide every engineer with top-tier tooling (Claude, GitHub Copilot, Cursor) to strip away technical toil—so you can focus your energy on shipping high-impact product features. We value engineers who know how to leverage these tools to drive momentum within our 6-week cycles, accelerating the journey from concept to code while maintaining the deep technical judgment to verify, secure, and own the final user experience.    Given our exciting and progressive growth plans, we are looking for an exceptional Senior Front-End Engineer to come join our global business.   Working collaboratively in a cross-functional product team within a tribe, you will be accountable for designing and developing applications and coordinating with the rest of the team working on different layers of the infrastructure Fresha.   This is a great opportunity for someone looking to work in a fast-paced and changing environment, who likes to work autonomously, enjoys a challenge and wants to make an impact!   To foster a collaborative environment that thrives on face-to-face interactions and teamwork, all Fresha employees work from our dog friendly office four days per week, with the flexibility to work remotely one day each week. London office: The Bower, 207, 211 Old St, London EC1V 9NR

Senior Frontend Engineer at Abound. Apply via Ashby.

Salary: Very competitive This is a unique opportunity at one of the largest crypto-native algo trading firms in digital assets. Looking to further expand with a Frontend Engineer who is passionate about building useful products & applications that users love. Working closely across multiple teams - product, marketing, trading, engineering - you'll be developing frontend applications for the firm's new trading products and client-facing porta...

Frontend Engineer - Java & Open Source (Private & FS) Full-time Department: Digital, Data and Cloud Company Description Version 1 has celebrated over 26 years in Technology Services and continues to be trusted by global brands to deliver solutions that drive customer success. Version 1 has several strategic technology partners including Microsoft, AWS, Oracle, Red Hat, OutSystems and Snowflake. We're also an award-winning employer reflec...

Lead Software Engineer - Frontend Engineering - React Native 210755745 T10:15:37+00:00 London Software Engineering Full time We know that people want great value combined with an excellent experience from a bank they can trust, so we launched our digital bank, Chase UK, to revolutionize mobile banking with seamless journeys that our customers love. We're already trusted by millions in the US and we're quickly catching up in the UK - but how we d...

Senior Frontend Engineer (React / Next.js) This is a Perm role In partnership with Robert Half Ltd and Tony Koyratty Location: Central London (3 days onsite and 2 days from home) Join a fast-growing, purpose-driven technology business with ambitious expansion plans and a product trusted by millions of people This is an exciting opportunity to join at a pivotal stage of growth, where you'll have the chance to influence product direction, shape te...

Senior Frontend Engineer at Ledger. Apply via Ashby.

<p class="Lexical__paragraph"><strong><strong class="Lexical__textBold">Join Proton and build a better internet where privacy is the default</strong></strong></p> <p class="Lexical__paragraph">At Proton, we believe that privacy is a fundamental human right and the cornerstone of democracy. Since our inception in 2014, founded by a team of scientists from CERN, we have dedicated ourselves to providing free and open-source technology to millions worldwide, ensuring access to privacy, security, and freedom online.</p> <p class="Lexical__paragraph">Our journey began with Proton Mail, the largest secure email service globally, and has since expanded to include Proton VPN, Proton Calendar, Proton Drive, and Proton Pass. These tools empower individuals and organizations to take control of their personal data, break away from Big Tech’s invasive practices, and defeat censorship. Our work impacts hundreds of millions of lives, from activists on the front lines defending freedom to leaders in governments protecting sensitive information. In some cases, Proton’s services have even been instrumental in saving lives by enabling secure and private communications in high-risk situations.</p> <p class="Lexical__paragraph">Proton is a profitable company that does not rely upon VC funding, supporting over 100 million user accounts with a growing team of over 500 people from over 50 different countries, from the world's top companies and universities. We value intelligence, learning potential, and ambition in our hiring process. Adaptability is key as we navigate uncharted territories and redefine how business is conducted online.</p> <p class="Lexical__paragraph">Hiring at Proton is highly selective, with less than 1% of candidates hired. We believe smaller teams of exceptional talent will always prevail over larger teams with lower talent density. You will have the opportunity work with many of the world's top minds in their fields, ranging from former international math and science olympiad winners to chess champions.</p> <p class="Lexical__paragraph">We have a global mindset and big ambitions but remain a start-up at heart. We value empowerment and flexibility and keep our structure flat to keep moving fast and avoid unnecessary politics. Tired of blending into the crowd? Join us and do work you can truly be proud of. Check our <strong><strong class="Lexical__textBold">open-source </strong></strong>projects <a class="Lexical__link" href="https://proton.me/community/open-source"><strong><strong class="Lexical__textBold">here</strong></strong></a><strong><strong class="Lexical__textBold">!</strong></strong></p> <p class=&q

<p class="Lexical__paragraph"><strong><strong class="Lexical__textBold">Join Proton and build a better internet where privacy is the default</strong></strong></p> <p class="Lexical__paragraph">At Proton, we believe that privacy is a fundamental human right and the cornerstone of democracy. Since our inception in 2014, founded by a team of scientists from CERN, we have dedicated ourselves to providing free and open-source technology to millions worldwide, ensuring access to privacy, security, and freedom online.</p> <p class="Lexical__paragraph">Our journey began with Proton Mail, the largest secure email service globally, and has since expanded to include Proton VPN, Proton Calendar, Proton Drive, and Proton Pass. These tools empower individuals and organizations to take control of their personal data, break away from Big Tech’s invasive practices, and defeat censorship. Our work impacts hundreds of millions of lives, from activists on the front lines defending freedom to leaders in governments protecting sensitive information. In some cases, Proton’s services have even been instrumental in saving lives by enabling secure and private communications in high-risk situations.</p> <p class="Lexical__paragraph">Proton is a profitable company that does not rely upon VC funding, supporting over 100 million user accounts with a growing team of over 500 people from over 50 different countries, from the world's top companies and universities. We value intelligence, learning potential, and ambition in our hiring process. Adaptability is key as we navigate uncharted territories and redefine how business is conducted online.</p> <p class="Lexical__paragraph">Hiring at Proton is highly selective, with less than 1% of candidates hired. We believe smaller teams of exceptional talent will always prevail over larger teams with lower talent density. You will have the opportunity to work with many of the world's top minds in their fields, ranging from former international math and science olympiad winners to chess champions.</p> <p class="Lexical__paragraph">We have a global mindset and big ambitions but remain a start-up at heart. We value empowerment and flexibility and keep our structure flat to keep moving fast and avoid unnecessary politics. Tired of blending into the crowd? Join us and do work you can truly be proud of. Check our <strong><strong class="Lexical__textBold">open-source </strong></strong>projects <a class="Lexical__link" href="https://proton.me/community/open-source"><strong><strong class="Lexical__textBold">here</strong></strong></a><strong><strong class="Lexical__textBold">!</strong></strong></p> <h4 clas

<p><strong>Join Proton and build a better internet where privacy is the default</strong></p> <p>At Proton, we believe that privacy is a fundamental human right and the cornerstone of democracy. Since our inception in 2014, founded by a team of scientists from CERN, we have dedicated ourselves to providing free and open-source technology to millions worldwide, ensuring access to privacy, security, and freedom online.</p> <p>Our journey began with Proton Mail, the largest secure email service globally, and has since expanded to include Proton VPN, Proton Calendar, Proton Drive, and Proton Pass. These tools empower individuals and organizations to take control of their personal data, break away from Big Tech’s invasive practices, and defeat censorship. Our work impacts hundreds of millions of lives, from activists on the front lines defending freedom to leaders in governments protecting sensitive information. In some cases, Proton’s services have even been instrumental in saving lives by enabling secure and private communications in high-risk situations.</p> <p>Proton today supports over 100 million user accounts with a growing team of over 500 people from over 50 different countries, from the world's top companies and universities. We value intelligence, learning potential, and ambition in our hiring process. Adaptability is key as we navigate uncharted territories and redefine how business is conducted online. We believe smaller teams of exceptional talent will always prevail over larger teams with lower talent density. Proton has become profitable and reached scale without relying upon VC funding, largely due to superior talent that allows us to do things faster, more creatively, and more efficiently.</p> <p>We have a global mindset and big ambitions but remain a start-up at heart. We value empowerment and flexibility and keep our structure flat to keep moving fast and avoid unnecessary politics. Tired of blending into the crowd? Join us and do work you can truly be proud of. <span class="TextRun SCXP96911575 BCX0"><span class="NormalTextRun SCXP96911575 BCX0"><span class="inline-comment-marker" data-ref="df41d9b1-a4e5-469e-b94c-9c31cb38a786">Check our <strong>social media pages</strong> to learn more about us: <a class="external-link" href="https://x.com/ProtonPrivacy">Twitter</a>, <a class="external-link" href="https://www.reddit.com/r/ProtonMail/">Reddit</a>, <a class="external-link" href="https://www.instagram.com/protonprivacy/">Instagram</a>.</span></span></span></p> <p class="Lexical__paragraph"><strong><strong class="Lexical__textBold">The Team:</strong></strong></p> <p cl