Brian Hasenstab has a comprehensive background in software engineering, beginning with an IT internship at Sequa Corporation in 2013. Following this, Brian progressed to roles as a Software Engineer at 1stdibs.com and a Full Stack Engineer at Islands. From September 2017 to December 2018, Brian served as a Frontend Developer at Yewno, Inc., before advancing to a Full Stack Engineer position at Atlassian until April 2022. Brian then held a Senior Software Engineer role at LaunchNotes from March 2022 to June 2025 and has continued in a similar capacity at Meta since June 2025. Brian earned a Bachelor of Science degree in Software Engineering from the University of Miami in 2013.