Captain Walker enlisted in the United States Navy in 1984. After completing Navy Nuclear Power School, he attended the Naval Academy Preparatory School at Newport, Rhode Island. He was accepted to the United States Naval Academy with the class of 1990 and graduated with a Bachelor of Science degree in Ocean Engineering.
Captain Walker received his Naval Flight Officer wings in 1992 at Naval Air Station Pensacola and completed flight training at the East Coast S3Fleet Replacement Squadron (VS27, Cecil Field) in December 1993. He reported to VS21forward deployed to Atsugi, Japan in January 1994. He deployed twice on board USS INDEPENDENCE (CV 62) to the Arabian Gulf in support of Operation SOUTHERN WATCH and was underway for numerous SEVENTH Fleet operations including the fleet response to the 1996 Chinese missile launches over Taiwan.
Captain Walker reported to the West Coast Fleet Replacement Squadron (VS41, NAS North Island) as an instructor in January 1997. From October 1998 to February 2000, he served as Flag Lieutenant for Commander THIRD Fleet on board the USS CORONADO (LPD 11). Following his assignment at THIRD Fleet, Captain Walker reported to Naval Personnel Command in Millington, Tennessee as the VS community detailer from March 2000 to November 2001.
Captain Walker was next assigned to VS21 from January 2002 to December 2003. While serving as Maintenance Officer he deployed to the Arabian Gulf on board USS KITTY HAWK (CV 63) where he led 32 combat support missions overland during the first 27 days of Operation IRAQI FREEDOM. Following his department head tour, Captain Walker reported to the Naval War College in Newport, Rhode Island and earned a Master of Arts Degree in National Security and Strategic Studies in 2005.
Captain Walker reported to VS32 as the Executive Officer in October 2005. He deployed with VS32 to the Mediterranean Sea, Arabian Gulf and Western Pacific from May to November 2006. While in the Arabian Gulf, his squadron executed over 35 combat missions overland in support of Operation IRAQI FREEDOM utilizing the newly installed LANTIRN pod. Captain Walker took command of the squadron in February 2007 and led VS32 on a second deployment to the Arabian Gulf from July to December 2007. Following his command tour, CAPT Walker reported to US Strategic Command where he served as the Nuclear Current Operations Chief from March 2008 to March 2011.
Prior to reporting to NSA MidSouth as Commanding Officer, Captain Walker was assigned as Operations Officer on board USS JOHN C. STENNIS (CVN 74) where he has deployed twice to the Arabian Gulf in support of Operations NEW DAWN and ENDURING FREEDOM.
Commander Evangelista was born in the Philippines and spent his childhood in Charleston, SC. He attended Georgia Tech in Atlanta, GA and graduated in 1997 with a Bachelor's Degree in Chemical Engineering and earned his commission through the Navy ROTC program.
Upon completion of the Division Officer Course at Surface Warfare Officers School in Newport, RI, he reported to the pre-commissioning crew of USS HIGGINS (DDG-76), where he served as Anti-Submarine Warfare Officer and Combat Information Center Officer. As a HIGGINS Plankowner, CDR Evangelista had the honor of participating in the ship's christening, commissioning, initial pre-deployment work-up cycle, and maiden deployment to the Middle East. In his subsequent sea tours, CDR Evangelista served on USS UNDERWOOD (FFG-36) homeported in Mayport, FL, as the Combat Systems Officer and on USS BLACK HAWK (MHC-58) homeported in Ingleside, TX, as the Executive Officer. His at-sea assignments included multiple deployments throughout the Western Pacific, the Mediterranean, the Caribbean, and the Arabian Gulf areas of responsibly. CDR Evangelista's shore assignments included instructor duty at Surface Warfare Officers School and various staff positions on board U.S. Naval Forces Central Command/U.S. Fifth Fleet/Combined Maritime Forces; U.S. Naval Forces European Command/U.S. Sixth Fleet; Naval Surface Forces/Naval Surface Force, U.S. Pacific Fleet; and NATO Training Mission-Afghanistan/Combined Security Transition Command-Afghanistan. During his numerous and diverse staff assignments, CDR Evangelista has served on Navy, Joint, and Coalition staffs located in Manama, Bahrain; Naples, Italy; San Diego, CA; and Kabul, Afghanistan. CDR Evangelista reported as the Executive Officer of Navy Recruiting District Houston in May 2013 and subsequently served as NRD Houston's Commanding Officer from November 2014 to May 2016.
Commander Evangelista holds a Master's Degree in Business Administration from the University of Rhode Island and he graduated with distinction from the U.S. Naval War College with a Master of Arts Degree in National Security & Strategic Studies. His personal decorations include the Defense Meritorious Service Medal, the Meritorious Service Medal, the Navy Commendation Medal, the Navy Achievement Medal, and various unit, campaign, and service awards.