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Senior Staff Front-end Engineer

We're making the world of digital assets accessible and secure for everyone. Join the mission. 


Founded in 2014, Ledger is the global platform for digital assets and Web3. Over 20% of the world’s crypto assets are secured through our Ledger Nanos. Headquartered in Paris and Vierzon, with offices in UK, US, Switzerland and Singapore, Ledger has a team of more than 700 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 millions units already sold in 200 countries. 


At Ledger, we embody the values that make us unique: Pragmatism, Audacity, Commitment, Trust and Transparency. Hear from our employees how they shape the work we do here


Ledger has developed Ledger Live, an application to manage all your blockchain-backed assets. It’s built in React.js (Electron on Desktop and React Native on Mobile) and supports multiple blockchains (coins & NFTs) as well as provides multiple services by integrating DApps and offering a SDK for 3rd parties to integrate. Of course, all this is backed by our hardware wallets which Ledger Live allows you to manage. This application is developed by several teams, each working on specific parts of the software.


To sustain the company's growth, we are looking for a Staff Front-End Engineer to join the Wallet Experience business unit. Within the Live Hub squad, you’ll be responsible for building and maintaining the portfolio and account management UI flows.


Your main responsibilities will be the following :
  • Own from a technical standpoint the desktop and mobile development of Ledger Live Applications.
  • Collaborate with our devs, QA, designers, and product within Ledger Live teams.
  • Take initiative and offer technical solutions.
  • Develop features using best practices from unit to e2e testing.
  • Participate in code reviews.
  • Be responsible for the quality of Ledger’s UI/UX framework.
  • Mentor and promote tech growth within the team, helping to set high standards for the team.
  • Work 100% on Open Source projects all gathered in our monorepo: ledger-live.
  • Share knowledge within Ledger and beyond.


What we're looking for :
  • Engineer profile with at least 5 years of experience in software development.
  • A curious mind with a positive attitude to join a highly collaborative team.
  • Proficient with JavaScript and TypeScript.
  • Strong experience in React.js development, tools and libraries.
  • Good knowledge of testing strategies.
  • Good knowledge of UI/UX practices in software development.


Nice to have :
  • Experience with React Native and/or Electron.
  • Experience in Web3 topics and technical stack.
  • Experience in maintaining a library of shared components.


What's in it for you ?
  • Equity: Employees are the foundation of our success, and we award stock options so you can share in that success as we grow. 
  • Flexibility: A hybrid work policy.
  • Social: Annual company outing for Ledgerdary Days, plus frequent social events, snacks and drinks.
  • Medical: Comprehensive health insurance policy offering extensive medical, dental and vision care coverage. 
  • Well-being: Personal development, coaching & fitness with our dedicated partners.
  • Vacation: Five weeks of paid leave per year, in addition to national holidays and rest & relaxation (RTT) days.
  • High tech: Access to high performance office equipment and gadgets, including Apple products. 
  • Transport: Ledger reimburses part of your preferred means of transportation .
  • Discounts: Employee discount on all our products.


We are an equal opportunity employer for all without any distinction of gender, ethnicity, religion, sexual orientation, social status, disability or age.


Ledger Glassdoor Company Review
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CEO of Ledger
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Pascal Gauthier
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What You Should Know About Senior Staff Front-end Engineer, Ledger

Are you ready to make an impact in the world of digital assets? Join Ledger as a Senior Staff Front-end Engineer in vibrant Paris, France, where we’re on a mission to provide secure and accessible digital asset management. At Ledger, we're more than just a team; we're innovators shaping a secure future for cryptocurrencies. With over 700 talented professionals and the successful Ledger hardware wallets in over 200 countries, we strive to reshape how the world understands and interacts with digital assets. As a Senior Staff Front-end Engineer, you'll play a pivotal role in developing and maintaining the portfolio and account management UI flows of the renowned Ledger Live application, powered by React.js. Collaborating closely with talented developers, designers, and QA experts, you’ll own the technical aspects of desktop and mobile development within a dynamic environment focused on growth and knowledge sharing. Your knack for identifying opportunities for improvement and mentoring fellow team members will ensure that we uphold high standards in our UI/UX framework. With a commitment to using best practices, you will also engage in code reviews and actively participate in our thriving open-source projects. Plus, we take our employees’ well-being seriously, offering a hybrid work policy, stock options, and a generous vacation allowance. If you're ready to embark on a rewarding journey with us, we'd love to welcome you to our team!

Frequently Asked Questions (FAQs) for Senior Staff Front-end Engineer Role at Ledger
What qualifications do I need to apply for the Senior Staff Front-end Engineer position at Ledger?

To apply for the Senior Staff Front-end Engineer position at Ledger, candidates should have at least 5 years of experience in software development, a strong proficiency in JavaScript and TypeScript, and extensive experience in React.js development. Knowledge of testing strategies and UI/UX practices in software development is also required. Experience with tools like React Native or Electron and familiarity with Web3 topics are considered a nice addition.

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What is the work culture like at Ledger for a Senior Staff Front-end Engineer?

At Ledger, the work culture is collaborative and dynamic, especially for a Senior Staff Front-end Engineer. We prioritize team synergy, innovation, and personal growth. Employees endorse values such as Pragmatism, Audacity, Commitment, Trust, and Transparency. Regular social events, annual outings, and an encouraging environment make Ledger an exciting place to work.

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Can you explain my responsibilities as a Senior Staff Front-end Engineer at Ledger?

As a Senior Staff Front-end Engineer at Ledger, you will be responsible for the technical development of Ledger Live Applications on desktop and mobile. This includes collaborating with cross-functional teams, mentoring peers, owning the UI/UX quality, and actively participating in code reviews. Your expertise will directly influence the development of user-friendly interfaces for portfolio and account management.

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How can I progress in my career at Ledger as a Senior Staff Front-end Engineer?

Career progression at Ledger as a Senior Staff Front-end Engineer hinges on continuous learning and knowledge sharing. Taking initiative in projects, consistently delivering high-quality work, and mentoring junior engineers are great ways to advance. Additionally, Ledger supports personal development through coaching and other programs, ensuring you grow in your tech skills and leadership capabilities.

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Is remote work an option for the Senior Staff Front-end Engineer position at Ledger?

Yes, Ledger offers a hybrid work policy for the Senior Staff Front-end Engineer position, allowing employees to create a work-life balance that suits them. This flexibility is part of our effort to maintain a positive work environment while ensuring you can contribute effectively to the team.

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What technologies will I be working with as a Senior Staff Front-end Engineer at Ledger?

As a Senior Staff Front-end Engineer at Ledger, you will primarily work with JavaScript, TypeScript, and React.js. You will also engage with testing frameworks, UI/UX best practices, and possibly utilize technologies such as React Native and Electron. Your work will revolve around our Ledger Live application and related open-source projects as well.

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What benefits can I expect working as a Senior Staff Front-end Engineer at Ledger?

Working as a Senior Staff Front-end Engineer at Ledger comes with a competitive benefits package, including stock options, comprehensive health insurance, generous vacation days, hybrid work flexibility, and access to high-performance office equipment. You'll also enjoy employee discounts on all Ledger products and opportunities for personal development in a supportive environment.

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Common Interview Questions for Senior Staff Front-end Engineer
How do you ensure the quality of your code as a Senior Staff Front-end Engineer?

To ensure quality, it’s essential to adopt a comprehensive approach that includes writing clean, well-documented code, implementing robust testing strategies from unit to end-to-end tests, and actively participating in code reviews. Additionally, staying updated with the latest best practices in React.js and engaging in continuous learning helps maintain a high standard of code quality.

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Can you describe a challenging project you worked on and how you overcame the challenges?

When discussing a challenging project, detail the specific obstacles you faced, such as tight deadlines or complex technical requirements. Explain how your problem-solving skills, teamwork, and innovative thinking led to a successful outcome. Bringing in metrics or user feedback can strengthen your answer by showing tangible results.

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What is your experience with mentoring junior developers?

In my career, I’ve taken on mentorship roles to help junior developers grow their skills and confidence. An effective approach includes setting clear goals for the mentees, providing constructive feedback, and supporting them in tackling real-world problems. Sharing knowledge through pair programming or code reviews also allows for collaborative learning.

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How do you stay current with the latest developments in React.js and front-end technologies?

To stay updated, I engage with the developer community by following industry leaders on social media, reading recent articles, and participating in forums. Attending conferences and webinars focused on front-end technologies is also beneficial. Additionally, I dedicate time to experiment with new tools and libraries to understand their practical applications.

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What strategies do you employ to enhance UI/UX in your projects?

Enhancing UI/UX involves user-centered design principles. I advocate for conducting user research and usability testing to gather insights. Collaborating closely with designers, I focus on creating intuitive interfaces that align with user expectations. Iterating based on feedback and incorporating best practices ensures that the end product is engaging and effective.

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How do you approach collaboration with design teams?

Effective collaboration with design teams requires clear communication and understanding requirements from the onset. I actively involve designers in the development process, encourage feedback, and align on design principles. Utilizing tools like collaborative design software helps translate visual designs into functional front-end components efficiently.

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What role do you think code reviews play in software development?

Code reviews are crucial in improving code quality and fostering team knowledge sharing. They encourage team members to learn from one another, minimize potential issues before deployment, and enhance consistency across the codebase. Moreover, fostering a culture of respectful feedback strengthens relationships and encourages collaborative growth.

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How do you prioritize tasks in a fast-paced development environment?

Effective prioritization requires a clear understanding of project priorities and timelines. I use tools to track tasks and deadlines, focusing on high-impact and time-sensitive tasks first. Regular communication with project managers and team members ensures alignment and allows for flexibility in adjusting priorities as needed.

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What tools are you most comfortable with for front-end development?

I’m comfortable using a variety of tools tailored to front-end development, including modern JavaScript frameworks like React.js, integrated development environments (IDEs) like Visual Studio Code, and testing tools like Jest and Cypress. Additionally, I leverage Git for version control and project management tools to facilitate team collaboration.

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What do you believe to be the most important skills for a Senior Staff Front-end Engineer?

Key skills for a Senior Staff Front-end Engineer include mastery in front-end technologies such as JavaScript and React.js, strong problem-solving abilities, excellent communication skills for collaboration, and a proactive approach to mentoring peers. Staying informed about industry trends and having a user-focused mindset are crucial for creating impactful products.

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Founded in 2014, Ledger is the global platform for digital assets and Web3. Over 15% of the world’s crypto assets are secured through Ledger Nanos. Headquartered in Paris and Vierzon, with offices in London, New York and Singapore, Ledger has a te...

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DATE POSTED
November 24, 2024

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