Jeff Garzik, is one of the initial developers of Bitcoin and who has been involved in many projects to improve its capabilities, especially developments aimed at improving its scalability and usability.

Unot from the main Bitcoin developers is Jeff Garzik. He was born in July 1974 and is a software engineer, futurist and entrepreneur, who is also the co-founder of the company Block Inc. Which is dedicated to the development of blockchain software at the enterprise level.

Garzik is also an advisor to several globally known Blockchain industry companies, serving on their boards of directors and advisers. Among the companies he advises are Center, BitFury, Bitpay,, Netki and laboratories Waypaver. He currently serves as the CEO of the Bloq company and is an active commentator on the crypto world on social media.


Jeff Garzik studied Computer Science at the Georgia Institute of Technology in the United States. He graduated in 1996 at the age of 22 and has since started his story with an early adoption from the tech world. He started his professional career as a developer of CNN website.

He then served as the principal software engineer at Red Hat de Linux for over 10 years. In fact, the work he developed during this time led to the kernel Linux to be a leader in the field of open source projects. Today it is the core of the Linux operating system, and its work can be seen in Linux data center facilities and on all the phones they use. Android.

Beginnings in cryptography

In July 2010, Garzik came across a post describing the Bitcoin project. Being a connoisseur of the technological world, he immediately recognized the potential that it represented. The concept and development of Bitcoin was considered impossible. It was about creating a fully digital and fully decentralized currency. This sparked his interest and made him participate in the project as one of its main developers.

Subsequently, in 2011, Garzik became the CEO of exMULTI. And he stayed on as developer of the Bitcoin open source software on Bitpay. In 2012, he founded Dunvegan Space Systems, which was created with the purpose of sending bitcoins to space.

Until 2016, Garzik continued his work on Bitcoin. In addition, he was the supervisor, developer and defender of hard fork SegWit2x. Although it was not successful, it was a derivation of followed which increased the maximum size of the blocks on the Bitcoin blockchain.

He is currently an active commentator on Bitcoin and blockchain, which is why he has made multiple presentations on this innovative technology in TEDx, State of Digital Money y Scaling Bitcoin.

  • Jeff Garzik
  • Jeff Garzik at a conference during the presentation of the UBTC fork
  • Jeff Garzik at a conference

When I first heard about Bitcoin, I thought it was impossible. How can you have a purely digital currency? Can't I copy your hard drive and have your bitcoins? I didn't understand how that could be done, and then I investigated it and it was brilliant.

Jeff Garzik, former contributor to Bitcoin Core.

Works developed

One of the projects that developer Jeff Garzik has worked on is creating the 21 bitcoin computer. This machine, created by the company 21 inc (a company that no longer exists), allowed to receive and make payments for the execution of work that cannot be easily automated, such as the identification of images.

Garzik is also recognized for his popular participation in forums and blogs. In December 2015 he published a blog titled “Bitcoin is hot-plugging for settlement" In it he stated that this technology was making great changes to the economic landscape. He was also the author of the article "Why SegWit2x is a better way for Bitcoin”, Referring to the hard fork SegWit2x that he had been developing.

In multiple interviews, Garzik has compared Bitcoin's development to children's growth, claiming that as a parent he enjoys watching his children grow, even though they make mistakes. In his perspective, he has stated that although Bitcoin has not evolved in the direction of high-volume payments, as its creator, Satoshi Nakamoto, and he imagined it would be in the first days. But he declares that on the value storage side, Bitcoin is undoubtedly a huge success.

Important milestones in your career

  1. He has a Computer Science Degree from the Georgia Institute of Technology, USA. USA
  2. I helped launch the website in the early 1990s.
  3. He sits on the Coin Center board and on the advisory boards of BitFury, BitPay,, Netki, and WayPaver Labs.
  4. He is a recognized presenter and speaker on bitcoin and blockchain technology at TEDx, State of Digital Money and Scaling Bitcoin.
  5. He was named a member of the board of directors of the Linux Foundation, as well as of the Network of Experts of the World Economic Forum as an expert in information technology.
  6. He was the main developer of SegWit2x.