

In the early 1990s, he founded VoiceSmart, one of the first companies to offer computer-based VOIP phone service. He was also an early developer of Voice over Internet Protocol (VOIP).
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Mashinsky then worked at A+ Systems, a computer-based voicemail software company for phone carriers. However, after the Tiananmen Square protests of 1989, the business slowed as exports of sodium cyanide from China fizzled.

Career Īfter relocating to New York City, Mashinsky ran a business trading contracts for delivery of chemicals such as urea, gold, and sodium cyanide. At the end of the 1980s, he left Israel and moved to the United States. Mashinsky attended a few different universities where he majored in electrical engineering but did not graduate. From an early age, he was a tinkerer, like his father, and would tap into and use public phone lines in Israel. Mashinsky was born in Ukraine and grew up in Israel. He serves as CEO of the Celsius Network, a CeFi lending platform operated by use of blockchain technologies. From 2014 to 2015, Mashinsky served as CEO of Novatel. He was also the founder of Q-Wireless, which later became part of Transit Wireless. Mashinsky founded GroundLink in 2004 as a service to book an on-demand limousine and car services from a computer or smartphone. Mashinsky's' other company, VoiceSmart, was one of the first firms to offer telecommunications switches to handle ordinary voice as well as Voice over IP call routing.

Named on over 50 patents, he founded Arbinet in 1996 as a commodity exchange for telecommunication companies to trade unused long-distance minutes. Alex Mashinsky (born October 5, 1965) is an American entrepreneur and inventor who has founded several notable technology firms in the United States.
