Our Team

Zetta Group is led by a team with extensive experience in Australian corporate ICT services, telecommunications and customer service in both Australian and international markets.

Dr Nathan Harman

MANAGING DIRECTOR, CEO

Nathan has a successful history in the Australian IT sector. He founded Harman IT in 1997 and 4 years later sold the company to the London-based multinational Marconi plc. In 2004, Nathan founded Zetta and has managed its growth since. Exporting services is a particular passion for Nathan.

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Jim Di Menna

COMPANY DIRECTOR, SALES DIRECTOR

Jim is a seasoned executive with extensive experience in the ICT industry and a director of Zetta. He has held senior positions with large IT multinationals including CSC, HDS and Fujitsu and is highly experienced in professional sales and in pursuing and successfully negotiating large scale ICT outsourcing contracts across Australia.

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Nicholas Power

GENERAL MANAGER – ZETTAGRID

Nicholas is an experienced IT professional and management executive. Nicholas has worked at Rio Tinto, Marconi Plc, WMC Limited and Woodside Energy. He has extensive experience with mergers and acquisitions having managed the transition of six companies within Zetta Group since 2008.

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Mark Vassallo

GENERAL MANAGER – ZETTA ICT SERVICES

Mark leads our Services divisions which encompass End User Computing, Data Centre, Managed Services, Project Management and Solutions Architecture teams. Mark began his IT career in 1995 and has a long history delivering managed services to large corporates.

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Jonathon Carley

FINANCIAL CONTROLLER & COMPANY SECRETARY

Jonathon is the Finance team lead and company secretary for the group of companies which includes Zetta (ICT & Managed Services), Zettagrid (Cloud/IaaS) and ZettaNet (Internet Service Provider).

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Nicki Pereira

CHIEF TECHNOLOGY OFFICER

Nicki’s background is varied and began in 1998 in systems analysis and development with BankWest and later moved into a technical architect role in 2000. He has since worked in senior technical architect and advisory roles with BHP Billiton, Marconi Plc, Woodside Energy and Babcock & Brown.

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Jennifer Gammie

GENERAL MANAGER – PEOPLE & CULTURE

Jenni is a professional People & Culture Manager with both strategic and operational experience. At Zetta Group, Jenni has developed the maturity of recruitment, leadership and communication in particular.

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