Lee was born on December 20, 1979, to Nannette and Rick "Ricky" Lee. He has one brother, Tim Oliver Lee.[4] In 2019, Lee's mother Nannette died,[5] and Rick moved to Mill Valley, California, to live with Lee's family. Lee and his father relocated once more to Miami in October 2022.[6] In high school, Lee wrote a 3D rendering engine in Turbo Pascal.[7] Lee attended Saint Louis University, where he became known as "Crazy Bob" from water polo,[8] and pledged Sigma Chi. In July 2001, while employed at Ajilon, Lee wrote a program for Microsoft IIS to defend servers from Code Red, a rapidly spreading computer worm around the time.[2]
By 2003, Lee was employed as a technical architect at AT&T. While at AT&T, Lee developed the aspect-oriented programming (AOP) framework dynaop similar to the Spring Framework for Java, featured in Oracle Magazine. dynaop served as the impetus for JavaServer Faces's (JSF) migration away from AOP.
Lee was employed at Google as a staff software engineer from October 2004 to January 2010, and helped develop the Android mobile operating system.[12] Lee co-authored the dependency injection framework Guice with Kevin Bourillon in 2006 while at Google to modularize AdWords.[14] Lee developed Guice based on ideas he had for Apache Struts, for which he concurrently worked on. In 2008, Lee and Bourillon were awarded the Jolt Award for their work on Guice.[16] Lee transferred to the core libraries team in 2007, eventually leading the team.[18] In May 2009, Lee created a Java dependency injection proposal with Rod Johnson. Additionally, Lee worked on Dalvik, an Android process virtual machine.[20] During Oracle v. Google, Lee was called as a witness.[21]
In January 2010, e-commerce company Square recruited Lee. There, he became the company's chief technology officer and led development on the company's Android app, eventually taking over development on Square's iOS app from now deceased co-founder Tristan O'Tierney.[22] Upon being made chief technology officer, Lee relocated to San Francisco from his St. Louis, Missouri home.[23] In 2013, Lee developed Cash App, then Square Cash. Lee left Square in 2014, investing in several tech startups, including Clubhouse, SpaceX, and Figma.[18][8] During the COVID-19 pandemic, Lee helped the World Health Organization with its app.[24] In 2021, he joined cryptocurrency payment firm MobileCoin as its chief product officer.[25]
Lee had polydactyly before undergoing surgery.[7]
In 2019, Lee and his wife, Krista, separated. The couple had a son and daughter together.[26] In July 2022, Lee sold the family home in Marin County.[27] Lee left Krista and his two children behind in the Bay Area when he moved to Miami with his father.[28]
In the early morning hours of April 4, 2023, Lee was stabbed in the 300 block of Main Street in the Rincon Hill neighborhood of San Francisco.[8] 
olice were called to the scene at 2:35 a.m. local time. CCTV footage shows a wounded Lee stumbling to a parked car with hazard lights on and lifting his shirt to show his wound; the car immediately drove away, after which Lee collapsed on the ground. By the time police arrived on the scene, he was unconscious. He was taken to a local hospital where he died from his injuries at the age of 43.[29][30][25]
Tributes poured in following his death. MobileCoin CEO Joshua Goldbard described Lee as a "force of nature" and a "dynamo", while Square CEO Jack Dorsey called the news "heartbreaking". Former Google employee Joshua Bloch wrote that Lee was "remarkable" and an "autodidact".[26] Other tributes made include by mixed martial artist Jake Shields and San Francisco district attorney Brooke Jenkins. San Francisco Board of Supervisors member Matt Dorsey, whose district includes Rincon Hill, said that Lee's death was a "senseless tragedy"; San Francisco mayor London Breed said his death was a "horrible tragedy". Figma CEO Dylan Field, who met Lee in 2006, wrote that, "It's so hard to believe he is gone".[25]
https://en.m.wikipedia.org/wiki/Bob_Lee_(businessman)?fbclid=IwAR01kE2scQCWOIHmpWYnnzEsfWWlREV76wpb3K5NbWrIABu6eEz3ihYNdeU
