Test & SW development for HW validation & industrialization

Paris, France /
Engineering – Hardware /
Founded in 2014, Ledger is a leader in security and infrastructure solutions for cryptocurrencies and blockchain applications. Headquartered in Paris, Vierzon and New York, Ledger has a team of 200+ professionals developing a variety of products and services to safeguard cryptocurrency assets for individuals and companies – including the Ledger hardware wallets line already sold in 165 countries. 

To sustain the company's growth, Ledger is looking for a new talent to join the HW team.


    • Specifying and developing test softwares for the new Ledger 'Hardware  products family'. 
    • Part of the software will be embedded in the product (C/C++) and second part of the software will manage the tester (C/C++, python)
    • Develop the software for an industrial programming tool (C, Python, )
    • Monitor the production results to reduce the  scrap of the products
    • Maintaining the software of the current industrial testers park
    • Put in place a tool to  "easily" upgrade our industrial equipment (tester, flashing tools....)

Requirements and qualifications

    • 5-7 years of experience  of  C/C++ embedded systems, Linux oriented
    • Python as a scripting language
    • Good knowledge in hardware (communication interfaces, memories, ADC/DAC, radio measurements, JTAG...), usage of oscilloscope, logic analyzer...
    • Knowledges of Industrial process optimization, software deployment (Ansible, Docker)
    • Android is a plus
    • Soft skills : autonomous, curious, problem solving, communication


    • Competitive compensation package, and BSPCE / Share warrants for entrepreneurs options in Series B (2018) startup
    • Flexible working hours, remote friendly environment 
    • Strong focus on personal development, including internal and external trainings, and attendance to conferences Internal talks, technical meetups, and hackathons 
    • High performance equipment for your work
    • 5 weeks of paid vacation + 10 days of RTT
    • Comprehensive health insurance with medical, dental, and vision coverage 
    • Meal Vouchers with Swile (ex Lunchr)
    • Reimbursement for sports and cultural activities
    • Annual company outing for Ledgerdary Days, plus frequent parties, snacks and drinks
    • Employee discount on Ledger products.