Zara joined the Business Evaluation Department in the Corporate Planning Unit of Petronas in December 1995 and was part of the team responsible for the successful establishment of the Kertih and Kuantan integrated petrochemical complexes, whose foreign partners included BP, BASF, Dow Chemicals and Mitsubishi.
She then became a project analyst in the Petronas Petrochemical Business Unit and was part of the core team developing the Petronas brand essence, which now forms part of the Petronas global branding strategy.
Between February 1999 and October 2000, she was a product manager at Petlin (Malaysia) Sdn Bhd, a Petronas joint venture with DSM of the Netherlands and Sasol of South Africa. She was also part of the Petronas project team to operationalise the largest single-train low-density polyethylene (LDPE) plant in the world at Kertih.
Zara left Petronas in November 2001 to become an account manager at Formis Network Services Sdn Bhd and then assumed the post of vice-president of partnerships and alliances at Formis (Malaysia) Berhad, a technology-based company listed on Bursa Malaysia, between 2003 and 2005.
Between 2005 and 2007, Zara, who is a certified life-saver and adventure sports enthusiast, became the managing director of Forthwave Consulting Sdn Bhd, a hydrocarbon technical engineering and software development company in Kuala Lumpur.