A 120-person HVAC manufacturer with offices in four countries was buying office by office. There was no written policy, nobody owned the process, and Finance couldn't see what had been bought, by whom, or why.
I was the single point of contact for purchasing across the US, Canada and Israel. I wrote the policy, designed the request and approval workflow, built one vendor list and one spend ledger, and added AI-assisted triage.
The process was live across the company three weeks after I started. About 130 requests went through it in the first three and a half months.