Senior OS Firmware Engineer
📌Paris, France 🇫🇷
⏱︎ full-time
🧙♂️ senior
hybrid
- Offres d'emploi
- Les Secteurs
- Industrie
- Numérique
- Santé
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- Rejoindre la Mission French Tech
-
Découvrir les métiers de la Tech
- Paris
- Full-Time
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Apply Now
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.
Job Description
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 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 7 millions units already sold in 200 countries.
At Ledger, we embody the values that make us unique: Pragmatism, Audacity, Commitment, Trust and Transparency. Hear from our employees how they shape the work we do here.
To sustain the company's growth, Ledger is looking for a new talent to work in the embedded firmware team (in charge of the hardware wallets Ledger Operating System) in order to take care of existing products' firmware evolution and next products’ firmware development.
The Mission
Work On The Firmware Specification, Implementation And Testing
- Implement secure and documented source code,
- Implement the associated SDK aimed at firmware applications development,
- Architecture and source code optimization,
- Ensure the quality of the implemented features with tests,
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Ensure the security of the source code regarding security certifications constraints.
Main interactions will be with
- Security team for software vulnerabilities analysis and corrections,
- Firmware Applications team for SDK evolutions,
- Hardware team for prototyping and production,
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Product team for requirements definition,
What We're Looking For
- Diploma in Computer Sciences, Engineering or related discipline,
- 4+ years of Embedded C software development,
- Experience on embedded development on secure elements,
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Good communication skills,
Bonus points
- Blockchain knowledge,
- Experience in secure and efficient cryptographic algorithms implementation,
- Interest in software and hardware attacks and their countermeasures.
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Embedded Rust software development,
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: 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
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Discounts: Employee discount on all our products
- Contract Type: Full-Time
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Location: Paris
See Other Ledger Job Listings
Senior Embedded Software Engineer
@ Embedd 
What we're looking for
At embedd.it, we power hardware-software integration in embedded devices. We turn fragmented semiconductor chip data into configurable digital twins, then deterministically generate code, tests, and documentation – making integration faster, cheaper, and resilient to supply chain shocks.
We’re looking for a true legend – someone with abstract thinking and deep expertise in low-level software development. You’ll build vendor-agnostic tooling for MCU and peripheral integration to solve hardware-software integration once and for all. We work at the intersection of embedded systems, code generation, compilers, and machine learning. It’s your chance to help redefine how low-level development is done.
Responsibilities
- Drive the architecture of the driver structures and system layout
- Define scalable patterns for cross-architectural integration across bare-metal, Zephyr, Linux, and other environments
- Deconstruct complex SoC device trees and translate hardware descriptions into structured internal models for automated reasoning
- Partner with the ML team to shape data and annotation models for AI-driven data-extraction tooling
Qualifications
- 5+ years of experience in embedded systems development, including bare-metal and RTOS-based systems
- Proficiency in C/C++
- Familiarity with firmware configuration, SoC bring-up, and system-level debugging
- Hands-on experience with code generation tools, or low-level compiler/decompiler/emulator technologies
- Strong background in embedded toolchains: compilers, linkers, debuggers, and build systems
- Python or scripting for automation and tooling is a plus
- Experience with functional-safety standards is a plus
Why embedd.it?
- Dynamic, venture-backed team of engineers challenging the status quo 🚀
- Work at the intersection of embedded systems, code generators, compilers, and ML 🤖
- Unusual challenges requiring out-of-the-box abstract thinking 🧠
- Competitive compensation: cash + equity 💰
- Remote work possible 🌍
About Us
embedd.it is a UK-based startup reinventing embedded development. Our platform transforms unstructured semiconductor data into structured digital twins, enabling automatic generation of drivers, tests, and documentation. We're building a single, traceable source of truth to make integration fast, vendor-agnostic, and future-proof.
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Employment
⏱︎ full-time
-
Experience
🧙♂️ senior
-
Working model
hybrid
-
Skills
-
Industry
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