Since 1989 I have been gaining experience by participating in projects such as:
- External Auditor (in teams of Auditors) for San Antonio Water System, CPS Energy, VIA Metropolitan, UT Health Science Center, George Gervin Youth Center, among others.
- Internal Auditor for CPS Energy, including internal audit segments at South Texas Project (Nuclear Plant).
- CFO (Chief Financial Officer) of the national office of the Hispanic Association of Colleges and Universities (HACU – non-profit organization).
- Preparation of personal and corporate tax returns.
In 1997 my wife Socorro Herrera and I founded Herrera CPA as a sole proprietorship.
In 1998, we were contracted as outsourced professionals by the South Texas Business Fund, a non-profit organization of the City of San Antonio, to handle their accounting services for 12 years, until it merged with another entity.