Internee – Medical College, Kolkata (2002–2003)
• Completed internship in various medical departments.

House Job (Orthopedics Department) – Medical College, Kolkata
• Duration: 6 months

MD Program in Biochemistry – Medical College, Kolkata (2006–2009)
• Pursued MD while gaining clinical and laboratory experience.

Full-time Consultant – Bellevue Clinic, Kolkata (2009–2017)
• Provided clinical consultation and diagnostic services in biochemistry.

Freelance Consultant – Testing Laboratories and Nursing Homes (2017–Present)
• Managed laboratory operations, quality control, and patient sample reporting
• Assisted with NABL and NABH accreditation audits.