Tanmaya Das has joined WSO2 as Chief Financial Officer (CFO), where he will support the company’s next phase of growth, transformation and global expansion as enterprises continue to accelerate digital adoption. He announced the move through a post on LinkedIn.
Das joined WSO2 in May 2026 after nearly 10 years at RateGain, where he served as Chief Financial Officer (CFO) from September 2015 to May 2025. At RateGain, he helped scale the company from a startup to a listed travel technology business, led five global acquisitions, supported Series A and Series B rounds, and played a key role in the IPO and QIP process.
Before RateGain, he was Chief Finance Officer (CFO) at Dion Global Solutions from June 2010 to August 2015, where he handled financial planning, budgeting, controllership, treasury, taxation, restructuring and M and A activity.
Earlier, he worked at CSC India as Manager Finance from June 2007 to June 2010, at KEANE as Assistant Manager Finance from November 2006 to June 2007, at Avaya GlobalConnect as Senior Executive Finance from July 2005 to November 2006, and at PwC as Senior Associate from January 2003 to July 2005.






