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Front-end Engineer – Ledger Vault

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 15% of the world’s

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 15% of the world’s crypto assets are secured through our Ledger Nanos. Headquartered in Paris and Vierzon, with offices in the 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 5 millions units already sold in 180 countries.
At Ledger, we embody the values that make us unique: Pragmatism, Audacity, Commitment, Trust and Transparency. Have a look at our Origins video here.

As part of its strong growth, we’re looking for a Front-End Engineer.
The Ledger Vault is a SaaS solution addressing the need to safeguard very large and diversified amounts of cryptocurrencies while mitigating both IT and physical assault threats.
It’s an enterprise grade solution based on “HSM” (Hardware Security Module) and hardware authenticators. It’s a turnkey SaaS hardware / Software suite enabling multi-cryptocurrency, multi-signature, rate limiting and time locking.

Are you able to develop high performance Front-End solutions? Join our team, one of the world’s leaders in one of the most innovative technology sectors, to build a solid and scalable platform for BtoB financial market !
We are looking for talents to build a solid and scalable platform for BtoB financial market.


Your mission

    • You will join the Engineering team developing our new Vault Platform
    • Design custom interfaces, doing back & forth with our product team to define and integrate new features
    • Maintain our code coverage standards (100%)
    • Interact with our devices through U2F / WebUSB / WebHID
    • Create new products and new services for our customers
    • Write mocks for device & backend, write unit & E2E tests
    • Optimize the overall performance of the Vault’s front-end


What we’re looking for

    • Proficient in React.js
    • First successful experience in Front-end development
    • Able to understand some issues on the Back-end side (FYI – stack is on Flask)
    • Strong knowledge of CSS, UI development & UX best practices
    • Knowledge of testing libraries like Jest / Cypress


Nice to have

    • Used to work with complex backend stacks, eventually using docker / docker-compose
    • Already worked with JS type system (Flow / Typescript)
    • Knowledge of scripting languages (Bash, Python)
    • Experience with Open-source & NPM ecosystem
    • Blockchain enthusiast, you’re familiar with the concepts of : wallet, operation, balance, unspent transaction output, etc…
    • All our software products have an aspect of integration with our hardware wallets. Our engineers on daily basis interact with hardware, security, crypto, core c++ library, design teams to build the best new generation products. We have a great team of talented engineers that all work closely.


Hiring process

    • Screening with the dedicated Recruiter (30 min)
    • First cultural fit with the Engineering team (1h) + Take-home project
    • Live coding test with Engineers (1h)
    • Final with the VP Engineering of the B2B Business Unit (45 min)


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.
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