Senior Firmware Engineer

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 500 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.

The company is looking for a new talent to work within the Enclave team responsible for building a secure “Enclave”, the trusted backend of Ledger products powered by Hardware Security Modules (HSMs) used across all our business units.
The team provide a firmware that embed a virtual machine to provide secure capabilities and write also the backend and tooling that serve this capabilities to the other backend teams

The mission

Work on the firmware specification, implementation and testing:

• Implement secure and documented source code.

• Implement the associated VM’s SDK and backends.

• Architecture and source code optimization.

• Ensure the quality of the implemented features with tests.

• Ensure the security of the source code regarding security certifications constraints.

Main interactions

• Security team for software vulnerabilities analysis and corrections.

• Firmware and Backend teams for SDK and services evolutions.

• Infrastructure teams for requirements definition.

What we're looking for

• Diploma in Computer Sciences, Engineering or related discipline.

• Expertise with embedded C software development

• Knowledge of the cryptographic algorithms

• Good communication skills.

• Interest in software security.

• Experience with security products.
  

Bonus points

• Expertise embedded Rust software development

• Experience with gRPC, Protobuf, docker, kubernetes technologies

• Experience with python, java or go languages.

• Interest in blockchains and crypto currencies.

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, 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

• 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.