In January 2006, Mrinal began his professional journey as an Intern at Oracle, where he worked on databases, ACID (Atomicity, Consistency, Isolation, Durability), and concurrency for 5 months.

From August to December 2007, Mrinal worked with the Federal Bureau of Investigation (FBI) as a Project Manager for a student project

Since September 2018, Mrinal has been making significant contributions as the CEO and Co-founder of CasperLabs