UTA has won five of its last six games in Sun Belt Conference play.
UTA continues the homestand on Friday to begin a three-game series vs. UL Monroe.
Smith returns to UT Arlington after spending the last three seasons at Ole Miss.
Fuller Smith joined the UT Arlington coaching staff as an assistant coach for the 2014 season. Smith returned to UT Arlington after spending the previous three seasons at Ole Miss.
"I am excited to have Fuller back as a full-time assistant," UT Arlington coach Darin Thomas said. "He has played and coached for one of the top coaches in America in Mike Bianco at Ole Miss. I know about Fuller's work ethic and loyalty, and can't wait for him to help elevate our program in the future."
Smith spent the 2013 season as a volunteer assistant coach at Ole Miss after two seasons as the director of baseball operations. Smith joined Ole Miss prior to the 2011 season after being a volunteer assistant at UT Arlington for the 2010 season.
During his first stint at UT Arlington, Smith served primarily as the team's first-base coach, hitting instructor and outfield coach. Smith helped the Mavericks to a school record 19 conference wins in 2010, and also helped in the development of outfielders Michael Choice and Preston Buck.
Choice earned several accolades that season, including First Team College All-America honors, Southland Conference Player of the Year honors and was named a semifinalist for the Golden Spikes Award. Buck was named a Louisville Slugger Freshman All-American by Collegiate Baseball.
Smith joined the UT Arlington baseball coaching staff after completing his collegiate playing career at Ole Miss. He was a model of consistency at the plate during his senior season (2008) batting .332 (69-for-208) with 39 runs scored, 14 doubles, seven home runs and 32 RBI. He was second on the Rebels in batting and ranked among team leaders with a .500 slugging percentage, .414 on-base percentage and was solid in the outfield committing only one error on the season.
Smith married the former Whitney Ryon on June 28, 2008.