Senior Frontend Engineer

Senior Frontend Engineer We’re a team of experts pushing the limits of what’s possible, united by our common goal to unlock true freedom through digital ownership, making technology accessible for all. We believe in a world where users, creators and enterprises manage their value with ownership and freedom. Our curiosity drives us to innovate, empowering individuals on a global scale. We believe change is constant, and our team moves forward as one, with a culture of problem-solving where every employee is empowered and supported to challenge tradition and create solutions. Our mission is simple: to make self-custody accessible and give people the keys to their own financial futures. If you want to make a true impact, we want you to join us at Ledger. At Ledger, we’re proud to be the global platform for digital assets and Web3, with over 20% of the world’s crypto assets secured through our Ledger devices. With our headquarters in Paris, and offices in Vierzon, Grenoble, Montpellier, London, Portland, Geneva, Zurich and Central Singapore, we have a team of around 600 professionals developing a variety of products and services to enable individuals and companies to securely buy, store, swap, grow and manage crypto assets – including the Ledger hardware wallets line with more than 7.5 millions units already sold in 200 countries. The team You’ll join the E-commerce Engineering team, responsible for everything customers experience on ledger.com http://ledger.com. This team owns the full customer journey - from discovery to checkout - working across a modern stack (Next.js, Shopify, Contentful, Vercel) to deliver high-performing, conversion-focused experiences at scale. We work in a fast-paced, product-driven environment, shipping frequently and optimising continuously for performance, SEO, and conversion. What you’ll be doing As a Senior Frontend Engineer, you’ll play a key role in shaping and delivering the web experience used by millions of customers worldwide. This is a hands-on role with strong ownership: you’ll lead complex projects end-to-end, contribute to technical direction, and elevate the team through high standards and mentorship. You won’t just build features - you’ll help define what’s worth building and how to deliver it effectively : - Own delivery end-to-end Lead development of high-impact features from ideation to production Make pragmatic trade-offs to balance speed, quality, and scalability Ship frequently and iterate based on real user data - Drive technical excellence Write clean, maintainable, and performant code (TypeScript, React, Next.js) Improve architecture, scalability, and reliability of the platform Maintain a high bar for testing, monitoring, and code quality - Shape solutions, not just code Collaborate with Product, Design, and Marketing to define the right problems Contribute to technical decisions with a strong product and business mindset Focus on outcomes like conversion, performance, and user experience - Elevate the team Mentor engineers through code reviews, pairing, and feedback Share knowledge and promote best practices across the team Help drive a culture of ownership, pragmatism, and continuous improvement - Collaborate across functions Work closely with stakeholders to plan, estimate, and deliver work Communicate clearly on progress, risks, and trade-offs Contribute to a strong, transparent engineering culture What we're looking for - Strong experience building production applications with JavaScript/TypeScript and React - Experience with Next.js or modern SSR frameworks - Proven ability to own and deliver projects end-to-end - Comfortable leveraging AI-assisted development tools (e.g. code generation, debugging, documentation, and exploration) to improve productivity, while applying strong engineering judgment to validate outputs and maintain high quality standards - Strong product mindset - focused on user impact and business outcomes - Experience ... (truncated, view full listing at source)