Guido will report to Chief Operating Officer Stuart Haselden, the company said in a statement today.
"Our momentum remains strong and we're thrilled to have PJ join the team and look forward to his important contributions," Haselden said in the statement.
The appointment comes as the board searches for a replacement for Chief Executive Officer Laurent Potdevin, who resigned last month because he fell short of the company’s standards of conduct.
The group did not explain the nature of the conduct that led to Potdevin’s departure, but suggested it had something to do with the way he treated staff. Potdevin failed to “exemplify the highest levels of integrity and respect for one another”, the company said in March.