They replace Tam Sandeman, who has returned to the UK after a period of eight years at the company.
Beckerleg has 25 years’ experience on the client and agency sides, having overseen brand, marketing and corporate communications divisions for companies such as Sony, Vodafone and Seiko.
Helliwell has a background in employee communications and has led in-house functions for BT, Telewest and Trinity Procurement.
Ogilvy Public Relations Australia is a joint venture between Ogilvy PR Worldwide and STW Group, a marketing content and communications specialist.