Be One is seeking an experienced O2 C Analyst in Mexico City (Hybrid) to support end-to-end order to cash processes. You will handle invoicing, accounts receivable, and collections, ensuring accuracy and timely processing in SAP, with cross-functional collaboration across Commercial, Finance, and Tax teams. The role requires a minimum of 4 years' relevant experience and fluent English. Prior pharma industry exposure is preferred; strong analytical and communication skills are essential.