Ms Tosilanon oversees the Human Capital function of Laguna Resorts and Hotels, and the Human Capital – Operations and Governance portfolio of Banyan Group. In the latter role, her duties encompass implementing strategic initiatives with regional teams to support operational needs and ensuring adherence to group standards.

Since joining the Group in 2003, she has served in various capacities. In 2008, she assumed the role of Director of Operations Projects, where she managed hotel performance to drive efficiency improvements. Upon her relocation to Singapore in 2010, she took on the position of Corporate Director of Compliance and Operational Analysis, focusing on financial analysis to streamline operational reviews within the hotel segment.

Following a brief departure in 2013, she returned to Laguna Phuket in 2014 as the Area Director of Human Resources, overseeing operations across three hotels in Phuket. She was then appointed to lead Banyan Academy, the company's training arm, before being redeployed to focus on human capital functions in 2019 with her promotion to Senior Assistant Vice President.

Ms Tosilanon holds a Master of Science in Management Technology from the National Institute of Development Administration, Thailand.