"J.B. is a tremendous coach who is one of the nation's top teachers at the offensive line position," Malzahn said. "He has an incredible resume coaching the position and has taught countless players at the NFL level. He played a vital role in our team's success this past season and we're fortunate to have him join our program at Auburn."
A veteran offensive line coach, Grimes spent last season with Malzahn at Arkansas State University and helped the Red Wolves put up strong numbers on the way to winning the Sun Belt title.
In 12 games the Red Wolves ran for 217.4 yards per outing while averaging 264.4 passing yards per contest.
Only twice last season did Arkansas State score less than 30 points in a game on the way to averaging 36.4 points per contest. David Oku ran for 1,024 yards and 15 touchdowns as the leader of a ground attack that finished with 30 rushing scores for the year.
"I'm excited about the opportunity to coach at Auburn and join Coach Malzahn's staff," Grimes said. "I've always admired Auburn football having coached in the Southeastern Conference and even when I was younger watching Pat Sullivan and Terry Beasley play.
"It's a special place with great history, traditions and fans," he added. "I've known Gus for several years and have admired the things he's done as a coach. We did some great things this past season at Arkansas State and I look forward to doing the same at Auburn."
Prior to the 2012 season at Arkansas State, Grimes coached two seasons at Kansas and before that spent five years at Mississippi State. With the Bulldogs from 2004-2008 he had three seasons with a 1,000-yard rusher. Prior to that he spent one season at East Carolina after a five-year stint with Texas A&M.
Coaching for R.C. Slocum from 1998-2002, Grimes helped the Aggies to 40 total wins and coached in four bowl games while in College Station. The five years before that he was with Frank Beamer at Virginia Tech as he coached in five bowl games and was part of two Big East Championships.
After playing offensive line at Henderson State in Arkansas, Grimes coached two years on the high school level before getting his first college coaching gig at Louisiana-Monroe in 1979. Coaching there for two seasons, he moved to Arkansas as a graduate assistant in 1981 and spent two years in Fayetteville before bouncing from Delta State to Missouri and eventually winding up back at Louisiana-Monroe in 1985. Two years later he was part of a team that won the 1987 Division I-AA national championship.
In 1989 Grimes made a move back to Arkansas to coach the offensive line under Lou Holtz and was there for four seasons and three different head coaches as Ken Hatfield and Jack Crowe both were head coaches for the Razorbacks before Grimes made the move to Virginia Tech.
As an offensive lineman at Henderson State, he helped his team to a 40-6 record in four seasons, including a berth in the 1974 NAIA Championship game.
Grimes earned a bachelor's degree in education from Henderson State in 1977 and a master's degree in education from Louisiana-Monroe in 1981. He grew up in Clarendon, Ark., and is married to the former Jennifer Graves. The couple has four children--sons Aaron and Nick and daughters Danielle and Lindsey.