Thirty-one-year-old Fazakerley made over 200 appearances for Welling after joining the club in 2008 and, until last month, had been in charge of the Park View Road side.
Having left Welling recently, Fazakerley was keen to get straight back into football and has now been recruited as part of Chris Kinnear’s backroom staff, as a coach – with a main focus on fitness.
Fazakerley said: “I am very happy to join Dover as fitness coach as it keeps me involved in the game at the same level, albeit in a different role.
“I had heard some great things about the club from players I know at the club and have been impressed with everything since coming in last week.
“I can see why the team is doing so well this season as Chris and Jake have put together a great group of lads. Everyone seems to get on well and they all work their socks off. There’s a great atmosphere around the place too. That’s always the foundation of a successful team.
“Whilst not a lot needs changing, with my background in sports performance I really think I can come in and make some improvements to the physical performance of the players.
“Hopefully that can help the team out in the end of the season play-off push.”