While studying at the University of Bath, Tan took a year off school to do an industrial placement at Eli Lilly in Basingstoke. Her time at the pharmaceutical company taught Tan that decisions were made at the management level and motivated her to change her career trajectory and research graduate finance and management programs in order to incorporate engineering perspectives into business decisions, thus having the power to make changes at the management level.
McKinsey
Despite not knowing what the company did, Tan signed up for an event held by consulting firm McKinsey & Company in Malaysia, eventually landing a job with the company where she performed well enough that they sponsored her MBA education at Harvard Business School - where she met fellow Malaysian and future co-founder of Grab, Anthony Tan, in the class of 2011.
Grab
While at Harvard Business School, Tan worked on a business plan with HBS classmate, Anthony Tan, for a "mobile app that connects taxi seekers directly with taxi drivers closest to their location in the chaotic Malaysian urban environment", which would later become GrabTaxi. The inspiration came from a comment by Anthony's friend about the safety issues facing female taxi passengers in Malaysia. The pair's business plan was the runner-up in the HBS New Venture Competition in 2011, winning $25,000. Using the proceeds from the competition and their own personal funds, Tan Hooi Ling and Anthony Tan launched the mobile application, first called MyTeksi, in June 2012. Although the pair had started the company, Tan had to return to McKinsey after graduation to serve out her bond with the consulting firm as a condition of sponsoring her education. She later moved on to San Francisco-based software companySalesforce, while taking time out of her schedule at the company to help out Anthony with Grab in Southeast Asia. She returned to work full-time on Grab in 2015. Upon returning, she took on the title of COO, and focused on 3 key areas - product, human resources, and customer experience.
Personal Life
Tan is a self-professed introvert, keeping a lower profile than her co-founder, Anthony Tan, but admitted she likes it that way. She also considers swing dancing, which she picked up in San Francisco, as one of her life accomplishments. Tan also plays the piano and violin, having a diploma in the former and a Grade 8 in the latter.