Mark Friedenbach
Chief Executive Officer at Machine Phase Systems Inc.
San Jose, California, United States
Summary
🤩
Rockstar🎓
Top SchoolMark Friedenbach is a CEO and serial founder with 13+ years of deep technical experience building foundational cryptocurrency infrastructure and now pursuing atomically precise manufacturing through a nanotechnology company. As a Blockstream co-founder and long-time Bitcoin Core contributor since 2010, he architected key mechanisms behind Lightning Network and Liquid and led the Sidechain Elements Confidential Assets work. He combines hands-on systems programming (Rust, C/C++, Python) and protocol design with product strategy, shipping consensus-critical changes in high-profile projects like bitcoin/bitcoin and zcash. Earlier work coordinating NASA virtual institutes honed his ability to align large, distributed research teams and communicate complex scientific ideas to diverse stakeholders. An Engineering Physics graduate, he pairs rigorous numerical and systems engineering training with practical web and scalability experience across cloud and OSS toolchains. He’s as comfortable refactoring core consensus code as he is translating long-term scientific visions into executable roadmaps.
13 years of coding experience
13 years of employment as a software developer
B.S. Engineering Physics, B.S. Engineering Physics at Santa Clara University
English
Github Skills (28)
transaction10
transactional10
consensus10
c-language10
scripting10
bitcoin10
bitcoins10
dog10
cryptocurrency10
script10
dashjs10
cryptography10
script-engine10
blockchain10
cprogramming-language10
Programming languages (14)
Github contributions (5)
bitcoin/bitcoin
Jul 2013 - Jan 2018
Bitcoin Core integration/staging tree
Role in this project:
Back-end Developer
Back-end DeveloperContributions:3 reviews, 5 commits, 19 PRs in 4 years 6 months
Contributions summary:Mark primarily contributed to the codebase by addressing core backend functionalities and maintaining code quality. They refactored code, including removing unnecessary indentation and using typedefs to improve readability and maintainability. Furthermore, the user implemented fixes related to mining and transaction handling. Their work demonstrates a focus on enhancing the stability and efficiency of the Bitcoin Core codebase.
cryptographyp2pc-plus-pluscryptocurrencybitcoin-core
zcash/zcash
May 2015 - Jun 2015
Zcash - Internet Money
Role in this project:Back-end Developer
Back-end DeveloperContributions:2 commits, 9 comments, 1 issue in 11 days
Contributions summary:Mark primarily contributed to the codebase by performing code cleanup and refactoring. They removed unnecessary indentation, used typedefs for monetary values, and updated the code to enforce time-based lock-time constraints. Furthermore, the user modified the block time logic to prevent it from decreasing and explicitly set transaction versions in the genesis block. These changes indicate a focus on improving code clarity, enforcing consensus rules, and ensuring the robustness of the Zcash blockchain's core functionality.
moneyzcashinternet
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