Senior Frontend Engineer in London

Senior Frontend Engineer in London

London Full-Time 60000 - 80000 € / year (est.) No home office possible
Ledger

At a Glance

  • Tasks: Shape and deliver web experiences for millions, leading complex projects from start to finish.
  • Company: Join Ledger, a global leader in digital assets and Web3 innovation.
  • Benefits: Flexible work options, health support, financial growth opportunities, and personalised learning.
  • Other info: Collaborative culture with a focus on mentorship and continuous improvement.
  • Why this job: Make a real impact in the world of digital ownership and empower users globally.
  • Qualifications: Strong experience with JavaScript/TypeScript, React, and a product-focused mindset.

The predicted salary is between 60000 - 80000 € per year.

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 various locations, 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.

You’ll join the E-commerce Engineering team, responsible for everything customers experience on 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.

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.

What you’ll be doing:

  • 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
  • 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
  • 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 to improve productivity
  • Strong product mindset - focused on user impact and business outcomes
  • Experience in A/B testing and data-driven optimisation
  • Solid understanding of performance, SEO, and web best practices
  • Pragmatic approach to engineering—knowing when to optimise vs ship
  • Mentoring mindset with strong communication skills

At Ledger, we are dedicated to continually investing in our employees which is why we offer more than just salaries; we provide comprehensive compensation packages that include a wide range of benefits. Here are some of the benefits you can look forward to:

  • Flexible work options - Our hybrid policy allows employees to work from home up to 3 times per week
  • Health & Wellness support - Health and Life Insurance.
  • Financial growth opportunities - Employees can become shareholders in Ledger as well as other financial benefits depending on your country of work.
  • Commuter allowance - Ledger offers a commuter allowance to contribute to your preferred means of transportation.
  • Learning & Development - A comprehensive suite of training solutions providing a personalised learning experience for every employee.

We’re committed to building an inclusive hiring process. If you need any adjustments or accommodations, just let us know, we’ll do our best to support you.

Senior Frontend Engineer in London employer: Ledger

At Ledger, we pride ourselves on fostering a dynamic and inclusive work culture that empowers our employees to innovate and make a meaningful impact in the world of digital ownership. With flexible work options, comprehensive health benefits, and robust learning and development opportunities, we ensure that our team members thrive both personally and professionally. Join us in Paris or one of our other global offices, where you will collaborate with passionate experts and contribute to shaping the future of financial freedom.

Ledger

Contact Detail:

Ledger Recruiting Team

StudySmarter Expert Advice🤫

We think this is how you could land Senior Frontend Engineer in London

Tip Number 1

Network like a pro! Reach out to current employees on LinkedIn or at events. Ask them about their experiences and share your passion for digital ownership. This can give you insider info and maybe even a referral!

Tip Number 2

Show off your skills! Create a portfolio showcasing your best projects, especially those using JavaScript, TypeScript, and React. Make sure to highlight any work that focuses on user experience and performance – that’s what they’re after!

Tip Number 3

Prepare for the interview by understanding Ledger’s mission and values. Think about how your experience aligns with their goals of innovation and accessibility. Be ready to discuss how you can contribute to their culture of problem-solving.

Tip Number 4

Don’t forget to apply through our website! It’s the best way to ensure your application gets seen. Plus, it shows you’re genuinely interested in being part of the Ledger team. Let’s make an impact together!

We think you need these skills to ace Senior Frontend Engineer in London

JavaScript
TypeScript
React
Next.js
SSR frameworks
AI-assisted development tools
A/B testing

Some tips for your application 🫡

Tailor Your Application:Make sure to customise your CV and cover letter to highlight your experience with JavaScript, TypeScript, and React. We want to see how your skills align with our mission of making technology accessible for all!

Showcase Your Projects:Include examples of projects you've led from ideation to production. We love seeing how you've tackled complex challenges and delivered high-impact features that enhance user experience.

Be Data-Driven:Mention any experience you have with A/B testing and data-driven optimisation. We’re all about making informed decisions, so showing us your analytical side will definitely catch our eye!

Apply Through Our Website:Don’t forget to submit your application through our website! It’s the best way for us to receive your details and get the ball rolling on your journey to join our team.

How to prepare for a job interview at Ledger

Know Your Tech Stack

Familiarise yourself with the technologies mentioned in the job description, especially JavaScript, TypeScript, React, and Next.js. Be ready to discuss your experience with these tools and how you've used them in past projects. This shows you’re not just a coder but someone who understands the full stack.

Showcase Your Problem-Solving Skills

Prepare examples of how you've tackled complex problems in previous roles. Think about specific challenges you faced, the solutions you implemented, and the outcomes. This aligns perfectly with their culture of problem-solving and will demonstrate your ability to contribute effectively.

Emphasise Collaboration

Since the role involves working closely with Product, Design, and Marketing teams, be prepared to discuss your experience in cross-functional collaboration. Share instances where your teamwork led to successful project outcomes, highlighting your communication skills and ability to drive results together.

Be Data-Driven

Given the focus on A/B testing and data-driven optimisation, come equipped with examples of how you've used data to inform your decisions. Discuss any metrics you’ve tracked and how they influenced your development process. This will show that you have a strong product mindset and are focused on user impact.