Ang joined IUCN-US in April 1998. Prior to coming to Washington DC, Ang was the Senior Finance Officer of the IUCN Nepal office from 1992 to 1998.

Prior to IUCN Nepal, Ang worked for projects under the Government of Nepal jointly funded by the Government of Nepal and donors. He is also the Senior Finance Manager of the IUCN Washington DC Office Finance Unit. Mr. Sherpa is a graduate of Tribuvan University in Nepal and received his B.S. in Accounting from Strayer University in Washington DC. He is a Certified Public Accountant from the Commonwealth State of Virginia, and is a member of the American Institute of Certified Public Accountants (AICPA).