Blockstream · 9 hours ago
Senior Firmware Engineer, Jade
United States
Full-time
Remote
Senior LevelBlockstream is a market leader in Bitcoin security and Layer-2 technologies, and they are seeking a Senior Firmware Engineer to join the team behind Jade, their flagship open-source hardware wallet. The role involves building and refining firmware that secures users' assets, working closely with lead developers in a high-impact team.
FinanceFinTechCrypto & Web3BitcoinBlockchainCryptocurrencyFinancial Services
Responsibilities
Work as a core contributor to the Blockstream Jade firmware, writing robust, secure C/Python code within a small, agile team
Extend and optimize our support for advanced signing protocols such as taproot, atomic swaps, and simplicity
Design and implement features like air-gapped camera signing, cryptographic primitives, and secure communication protocols
Develop optimized solutions to work within a resource constrained execution environment
Contribute to a transparent, open source codebase where your work is visible to the entire Bitcoin community
Qualification
Required
Proven track record in C/C++ development for microcontrollers with real world esp32/esp32s specific experience
Solid understanding of Bitcoin internals, with a specific focus on Taproot, SegWit, and PSBTs
Experience with secure boot, memory protection, and defending against software based and side-channel attacks
Comfortable working with peripherals (cameras, screens) and low-level protocols (SPI, I2C, UART)
An active GitHub presence with contributions to open-source projects is highly preferred
Preferred
Previous experience working in a team and working with remote team members
Familiarity with Python for tooling and testing
Up-to-date knowledge of Bitcoin latest developments
Experience with Liquid/Elements and/or confidential transactions
Company
Blockstream
Blockstream is a blockchain technology that develops digital asset infrastructures for the emerging Bitcoin economy. It is a sub-organization of Blockstream.
Founded in 2014
51-200 employees
H1B Sponsorship
Blockstream has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2023 (1)
2021 (3)
2020 (3)
Funding
Current Stage
Growth StageTotal Funding
$634MKey Investors
Fulgur VenturesKingsway CapitalBaillie Gifford,Bitfinex
2024-10-15Convertible Note· $210M
2023-01-24Debt Financing
2023-01-24Convertible Note· $125M
Leadership Team
Adam Back
CEO
Recent News
2026-02-08
Crowdfund Insider
2026-02-06
Company data provided by crunchbase