After completing New Agent Training in Quantico, Virginia, Mr. Fernandez was assigned to the San Antonio Division, Austin Resident Agency. He investigated organized crime matters and violent crimes. In 1996, he transferred to the Brownsville Resident Agency, where he investigated drug cases.
In April 2001, Mr. Fernandez returned to Headquarters where he was promoted to supervisory special agent in the Drug Section, Special Operations Division. He transferred to the Communication Exploitation Section in January 2003. Later that year, he was promoted to field supervisor of the Criminal Enterprise Squad, Dallas Division. Mr. Fernandez was reassigned as a counterterrorism supervisor in January 2005.
In December 2006, Mr. Fernandez was promoted to assistant special agent in charge in the Phoenix Division, where he was responsible for the National Security Branch. In September 2008, he was the on-scene commander in Afghanistan and also provided support to the U.S. Armed Services Special Operations Units.
In March 2009, he was promoted to section chief in the Counterterrorism Division’s Communications Exploitation Section at Headquarters. This section provides technical and analytical capabilities in support of counterterrorism investigations.