We’re the forever innovators. On a mission that goes beyond business. Securing digital ownership in a changing world. Unlocking true freedom. We’re revolutionaries. Looking beyond today. Bridging excellence and pragmatism, with ambition and conviction, to push the limits of what’s possible. That’s what you’ll do here, in this playground of innovation. With leadership and trust, you’ll write the rules of new technology, and create products that redefine security in a digital age.

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 6 millions units already sold in 200 countries. 

Donjon is the team in charge of the security of all the products built at Ledger. As a security engineer, your daily job will be to attack our products and the whole ecosystem they interact with, in order to maintain and improve our leadership in the industry.

Your mission

. Research and demonstrate cutting-edge hardware supply chain attacks

. Perform security evaluations and threat modelling on supply chain processes for Ledger hardware wallets

. Define and implement best practices to enhance supply chain security for manufacturing, distribution, and logistics

. Maintain and write new code allowing real attacks,Present your work in academic and hacking conferences all over the world

What we’re looking for

. Strong experience in IoT or smartcard security

. Knowledge of electronic manufacturing

. Embedded system development

. Basics knowledge of cryptocurrency ecosystem is a plus

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.