According to a report in Variety, Gulati had been spearheading Apple's chip development and has now joined Google.
Gulati announced his new job on his Linkedin profile, stating that he now works as Google's Lead SoC Architect.
His LinkedIn profile shows that he has also worked for nearly 15 years at chip makers AMD and Broadcom, giving him a total of 27 years of experience in the industry.
Gulati was instrumental in Apple's efforts to build custom chips for iPads, iPhones and Apple TV.
With Gulati now part of its team, Google can have an edge over other companies while it comes as a significant blow to Cupertino-based Apple.
"Apple filed a total of 15 chip-related patents that credit Gulati as one of the inventors. Some of these filings describe fundamental chip architecture, while others are more specific to certain applications," the report noted.
One of Gulati's patents described hardware-based security for Apple Pay that securely stores a user's fingerprint on the iPhone.
According to reports, Google is also looking to hire additional chip experts to tightly control future Pixel hardware and who will "help define the architecture of future generations of phone and tablet" chips.