Notts County director of football Roberto Gagliardi said: “We’re hugely excited to introduce Martin as our new Head Coach.
“Despite still being in the early stages of what we believe will be a tremendously successful coaching career, Martin has been entrusted with several senior roles, both in the UK and USA, by highly-respected figures within the game.
“In our conversations with him it's been clear that he shares our vision of playing dynamic, progressive football and, as much as the club's DNA will remain the same in terms of our desire to dominate the ball, we believe he may bring more intensity and directness to our play.
"Martin wants his teams to be extremely hard-working, well-organised and difficult to play against – characteristics which were key to his success at Burton having become their manager in very challenging circumstances.
"We believe we can provide the environment for Martin to demonstrate his true capabilities as a head coach."