An Australian-owned company, Tier5 specialises in providing data centre consulting services and data centre development with a modular design based on Dell technology.
Peter Chie said the role of CDO involves identifying and developing business opportunities while the finance manager is responsible for the management and control of Tier5's commercial operations.
Hume joins Tier5 after more than 13 years at Telstra in technical and senior management roles, including as Telstra Countrywide's general manager sales for SA/WA/NT from 2008 to last year.
Puccini has held senior financial roles in a wide range of industries, with companies including Asia Pacific drilling services company Boart Longyear, BHP Billiton in London, with Hermes Fund Managers Limited (UK), and at Barclays Bank, London. She also worked for British Telecom subsidiary, Openreach.