Byron Hayward was Wales Under 20 head coach last season.
The Welsh Rugby Union has congratulated Wales Under 20 head coach and National Academy Skills coach Byron Hayward on his appointment as Scarlets defence coach.
Hayward, who joined the WRU three years ago from Sale Sharks, will leave his post at the end of the month to join the Scarlets coaching team on a full time basis.
Hayward was Wales Under 20 backs coach for two seasons, playing a key role in the side reaching the Junior World Championship semi-final in 2012 and the final in 2013, before taking over from Danny Wilson as head coach this season.
National Performance Manager Gethin Watts said, "We wholeheartedly congratulate Byron on his new role. It is the next step in a successful coaching career to date following the opportunities he's had as WRU national academy skills coach, with Wales Under 20 and previously with Sale Sharks after retiring from playing.
"He has experienced one of the highest profile rugby tournaments in the world in the Junior World Championship, achieving excellent results, and has a great understanding of player development through both roles which will no doubt stand him in good stead in the future.
"This appointment comes on the back of other WRU employees who have recently gone on to earning professional coaching contracts, within the Welsh Regions and outside of Wales, such as Dale McIntosh, Paul John, Danny Wilson and Gruff Rees, while others have done the same in areas such as strength and conditioning, analysis and rugby management."
Hayward added, "The quality of rugby I've experienced at Junior World Championship tournaments is very close to senior, professional rugby - the most recent example being South African outside half Handre Pollard who won his first full cap a week after captaining South Africa Under 20 to the final of the Junior World Championship.
"That, along with my work as a WRU academy skills coach, which has given me a unique insight into technical development of players, and previous coaching with Sale, has combined to provide me with the experience I need to take on this role."
Wales captain Sam Warburton is impressed by the effort the squad has put in over the past couple of months and says Saturday's win against Ireland was a massive boost to the squad as they prepare for the World Cup.
WRU TV follows Wales' RWC training squad on day one of their camp in North Wales. The squad were greeted to an official welcome in Colwyn Bay and then headed for an afternoon of team building at ZipWorld
Actor and Millennium Stadium Tour Guide Gareth Bale has been performing his one-man play about Wales rugby legend Ray Gravell across Wales. He chats to WRU TV before taking his show to the Edinburgh Festival.
Wales Sevens head coach Gareth Williams is delighted with his selection as assistant coach to Simor Amor for the men's programme ahead of the Rio 2016 Olympics Games. WRU TV's Graeme Gillespie gathers his reaction.
Newport Gwent Dragons kick-started their season by winning a major trophy as they shocked all the big names in the Aviva Premiership by becoming the first Welsh winners of the Singha 7s at the Twickenham Stoop.
Principality Building Society has joined forces with the Welsh Rugby Union to offer every club in Wales the opportunity to reward their most cherished volunteers with tickets for Wales' Dove Men Test clash with Italy at the Millennium Stadium next weekend, Saturday 5th September 2015 (5.00pm).