Hardware Security Researcher, Ledger

Ledger

Location:
France, Paris

Category:
Research and Development

Contract Type:
Not provided

Salary:

1500.00 EUR / Month

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Job Description:

Internship position in the Donjon team responsible for security of all products built at Ledger. The intern will work in the lab on Integrated Circuits reverse engineering, from sample preparation to imaging using a Scanning Electron Microscope. The techniques and methodology developed will enable novel attacks on security sensitive targets.

Job Responsibility:

Research cutting-edge offensive security techniques
Develop reverse engineering techniques and tools for Integrated Circuits manufactured on modern process nodes
Develop attacks for the chips you studied based on reverse engineered information
Formalize and generalize the attacks you find, and propose systematic ways to mitigate them or altogether render them impossible
Submit your findings for publication in academic journals or specialised conferences if time permits

Requirements:

Experience with programming in Python or Rust
Basic understanding of (or strong curiosity towards) semiconductor devices and Integrated Circuits stack up and layout
Interest in working in a hands-on, experimental lab environment
Ability to formalize your work and shape concepts at the relevant abstraction level
Ability to develop and document methods, standards, and guidelines
Ability to clearly articulate and communicate your ideas, in written and spoken English

What we offer:

Social: Frequent social events, snacks and drinks
Transportation allowance: commuter allowance to contribute to your preferred means of transportation
Lunch vouchers: meal allowance with Swile
Vacation: 1 day off for every full month of work, in addition to national holidays

Additional Information:

Job Posted:
November 06, 2025

Employment Type:

Fulltime

Work Type:

On-site work

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Hardware Security Researcher