In Toronto, Malavalli worked for Canstar Communications’ fibre channel group, which was later acquired by Hewlett-Packard. While at Hewlett-Packard, he served on American National Standards Institute's T11 Technical Committee, which established universal standards for fibre channel.
In 2003, Malavalli became the first Indian member of the Silicon Valley Engineering Hall of Fame.
Other companies whose boards Malavalli has served on include CryptoMill Technologies and LeadFormix (then-known as LeadForce1). He was also an investor in Edurite Technologies, which was later acquired by Pearson Education.
In 2004, Malavalli donated $1 million toward the creation of the University of California at Santa Cruz’s endowed Kumar Malavalli Chair in Storage Systems Research. He is also a benefactor of Stanford University’s Institute for Economic Policy Research, with donations totaling over $500,000.
Malavalli is a co-founder and trustee of the Indus Trust, which builds schools that are not affordable by the middle class population of India. Hindu BL, The Indus Trust is headed by Lt. Gen. Arjun Ray. He is also the principle investor of TeleVital, a company that provides telemedicine services to rural areas in India.
In 2013, Malavalli was awarded the Immigrant Heritage Award for his philanthropic work in the United States and India.
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