This appointment marks a new chapter in Tanja’s career with the company, where she has spent more than 20 years in a variety of commercial, strategic, and leadership roles.
In her new position, Stevanovic will lead GSK’s Vaccines business in Australia, working closely with internal teams and external stakeholders to expand access to innovative vaccines and support efforts to protect more Australians from infectious diseases. The promotion also marks her 10th role within the organization, highlighting a long-standing track record of leadership and growth.
Most recently, Stevanovic served as Business Unit Director – Respiratory, where she led the respiratory portfolio and contributed to business growth, commercial excellence, and strategic execution across the Australian market.
Prior to that, she held the role of Director, Customer Experience and Operations and was a member of the Executive Leadership Team. In this position, she oversaw commercial strategy and operations across business insights, digital marketing, omnichannel acceleration, sales capabilities, commercial operations, and employee health and safety.
Throughout her tenure at GSK, she has held several senior leadership positions, including Head of Commercial Excellence, Head of Ethics & Compliance ANZ, Sales Business Leader, and National Sales Manager – Oncology & Haematology. In these roles, she played a key role in strengthening commercial performance, leading large sales teams, driving organizational transformation, and building high-performing teams.
Stevanovic also gained significant experience in brand and marketing leadership through positions such as Senior Brand Manager – Osteoporosis, Brand Manager – Respiratory, and Associate Brand Manager – Retail Brands. She contributed to product launches, customer engagement initiatives, and portfolio growth strategies across multiple therapeutic areas.
Before joining GSK, she spent more than 5 years with Organon, serving as Senior Key Account Manager – Fertility and Medical Representative – Women’s Health, where she built strong expertise in healthcare, customer engagement, and pharmaceutical sales.
With extensive experience spanning vaccines, respiratory care, oncology, compliance, customer experience, sales leadership, and commercial strategy, Tanja Stevanovic brings a broad perspective and proven leadership capabilities to her new role.
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