[11] Dai served as chief operating officer, executive vice president, and general manager of the Communications Business Group at Marvell.

[16] Dai co-founded the startup 'MeetKai' in 2018, which is focused on digital media technology (artificial intelligence/metaverse) and as the "Official AI Partner" of the Los Angeles Chargers.

[17] In 2021, together with her husband, she founded Silicon Box, a Singapore-based semiconductor company that focuses on the design and manufacture of chiplet packaging.

The venture-backed company opened a $2 billion facility in Tampines in 2023 to produce chiplets for their customers primarily in the artificial intelligence domain.

[25] In March 2013, Dai was honored with the Silicon Valley Entrepreneur of the Year Award in the Established Corporation category by the Chinese Institute of Engineers/USA-San Francisco Bay Area Chapter.

[29] On December 16, 2013, Marvell Co-founders Dr. Sehat Sutardja and Weili Dai were honored with the 2013 Dr. Morris Chang Exemplary Leadership Award [30] by the Global Semiconductor Alliance.

[37] In 2008, the company and its then chief operating officer–and the only member of its stock option "committee" during the period in question – Weili Dai paid fines,[38] to the Securities and Exchange Commission over charges of false financial information to investors by improperly backdating stock option grants to employees, totaling $10 million and $500,000 respectively.

Dai was forced to step down as executive vice president, chief operating officer, and a director but allowed to continue with the company in a non-management position.

[39] In 2016, Dai and her husband, Sehat Sutardja, were ousted from Marvell Technology Group, the company they had co-founded, after months-long investigation on a potential accounting fraud.