Guilherme Martins

Guilherme Martins is a Client Account Manager at Liberty Mutual Reinsurance since November 2023, bringing extensive experience in client management and accounting from prior roles. At Aon, Guilherme served as a Junior Account Executive in the International Surety Team from February 2019 to November 2023, and held positions as Junior Controller and Junior Administrative Specialist in finance and technical accounting, focusing on invoicing and intercompany billing. Prior experience includes working as an Accounting Assistant in customer relationship management at Siemens, managing sales and orders at IN OUT JA, and general accounting at ESTUDIO CONTABILIDADE ESCALER. Guilherme holds an Executive MBA in Administration, Finance, and Management Control from 24ORE Business School, completed in June 2023.