Same here. Joined in 1990. Perot was already gone.
Started at a GM location. Did my 10 weeks in Plano boot camp. Returned to a GM facility and later bull shitted my way to PCs and networking from mainframe work. They were awfully stodgy in those days but the future was quite apparent to me. Wouldn’t trade the experience for anything but glad I pulled the cord when I did.
Started out in their Accounting and Finance area, realized I hated Accounting and Finance, and became an SE, and never looked back.