Bob Lee was more than just a tech entrepreneur—he was a pioneer in the financial technology space, a dedicated engineer, and a man whose innovations changed how people move money. However, his tragic death in 2023 made headlines, leaving many wanting to learn more about the man behind Cash App. Let’s take a deeper look at his life, career, and legacy.
Early Life and Career Beginnings
Born and raised in Missouri, Bob Lee had a passion for technology from an early age. He attended Southeast Missouri State University, where he not only honed his skills but also worked as a web developer for the university. That experience helped launch his career, leading him to a technical architect position at AT&T before he landed a highly coveted role as a software engineer at Google in the early 2000s.
The Rise to Tech Stardom
Bob Lee wasn’t just another engineer—he was a visionary. At Google, he contributed to various critical projects before moving on to Square (now known as Block, Inc.), where he became the Chief Technology Officer. It was during his time at Square that he played a key role in developing Cash App, one of the most widely used mobile payment platforms today.
After his success at Square, Lee continued his impact in fintech by joining MobileCoin as the Chief Product Officer. His expertise and forward-thinking approach helped shape the company’s blockchain-based financial solutions.
Bob Lee’s Net Worth and Financial Success
Given his impressive contributions to the tech world, Lee built a significant net worth. By 2023, it was estimated that he was worth around $10 million, according to The U.S. Sun. His fortune was amassed through his key roles in major tech firms, his investment strategies, and his entrepreneurial spirit.
Personal Life: Family and Relationships
While his professional life was marked by innovation and success, Bob Lee’s personal life had its own complexities. He was married to Krista Lee, and the couple had two children together. However, by 2019, they had separated. Despite their separation, Lee was still an active father and remained close to his children. His untimely death left his family, friends, and the tech community mourning the loss of a brilliant mind and a devoted father.
The Tragic Incident: What Happened to Bob Lee?
On April 4, 2023, tragedy struck when Bob Lee was fatally stabbed while walking down Main Street in the Rincon Hill neighborhood of San Francisco. Surveillance footage showed him stumbling to a parked car, desperately trying to get help, but the driver drove away. Authorities found him unconscious, and though he was rushed to a hospital, he succumbed to his injuries at the age of 43.
The Conviction of Nima Momeni
The case took a shocking turn when Nima Momeni, an acquaintance of Lee, was arrested for the crime. Prosecutors argued that Momeni planned the murder after becoming frustrated with Lee for allegedly introducing Momeni’s sister, Khazar Elyassnia, to a drug dealer. Momeni, however, claimed that he acted in self-defense, stating that Lee attacked him first with a knife.
Despite his defense, in 2025, Momeni was convicted of second-degree murder. According to The New York Times, he now faces a prison sentence ranging from 16 years to life.
Remembering Bob Lee’s Legacy
Beyond the tragedy, Bob Lee’s legacy is one of innovation, determination, and influence. His contributions to fintech have shaped the way millions handle digital transactions today. Cash App remains a dominant player in the financial space, serving as a testament to his work and vision.
Though his life was cut short, his impact continues to be felt across the industry and in the lives of those who knew and admired him. Bob Lee was more than just a tech entrepreneur—he was a pioneer who left a lasting mark on the world.