Before starting QualityWaves, he was the Global Head of a multimillion-dollar Quality Solutions business in Satyam Computer Services Ltd India.
He served as a member on the Advisory Board of IT Services Qualification Center at Carnegie Mellon University, Pittsburgh, USA. He was one of the reviewers of the model eSCM SP and eSCM CL
Dr. Nag specializes in Software process improvement and quantitative measurement initiatives. In his role as a CMMI / CMM and ISO 9001 Lead Appraiser and a well known consultant and trainer, he has managed and implemented such initiatives in a large number of organizations around the world. He was among the first ten High Maturity Lead Appraisers in the world to be authorized by the Software Engineering Institute, USA
Dr. Nag is well known in the software industry in India and many parts of the world, including Hong Kong, Netherlands, Philippines, Indonesia, Egypt, Dubai, Ukraine and Latvia. He has led High Maturity appraisals in these and other countries for a large number of organizations including PCCW Hong Kong, IBM Global Philippines,, Cap Gemini Netherlands, ITS Egypt, Bank Danamon Jakarta, Airport Authority of Hong Kong, Accenture Consulting Philippines, Mahindra Satyam, Tech Mahindra, HCL Technologies, TCS, Tata InfoTech, EDS India, Tata Interactive, Bharti Telesoft, CMC, Hughes Software Services, Fidelity Information Services and many others