"I feel I am ready," Kearney said. "I'm very excited about the opportunity. Everybody recognises the potential [the Warriors] have."
It's been a long time coming. A player in 1997 and 1998, Kearney was linked with the Warriors' coaching job in 2012 but decided the time wasn't right to throw his hat in the ring.
"I wasn't ready," said Kearney. "Since then I have had four years at Brisbane, which has been a wonderful experience."
The Warriors appointment also ends Kearney's long tenure with the Kiwis.
"It was a very challenging decision [but] I wanted to make that group better and I am comfortable I achieved what I had set out to do."
Kearney's NRL head coach experience is limited to 42 games at the Eels - Parramatta won 10 of those - but Warriors managing director Jim Doyle said the decision was not a gamble.
"I don't think it is a risk at all," said Doyle. "Stephen had a go at Parramatta in the past. I think that was wrong time, wrong place. Like most of us, we tend to learn more from adversity than we do with success. Stephen has learned a lot from that time. He's had a lot of success with the Kiwis [and] has worked with a lot of our boys before.
"He was our first choice. We had various options in front of us, but he was the No 1 candidate."
Playing record
Position: Backrower
264 NRL games, 37 tries
Clubs: Western Suburbs, Sydney: 1992 to 1994, 46 appearances
Auckland Warriors: 1995-1998, 79 appearances
Melbourne Storm: 1999 to 2004, 1 premiership (1999), 139 appearances
Hull (England): 2005: 1 Challenge Cup win, 29 appearances
Kiwis: 1993 to 2004
Test caps: 44 (second in history), 9 tries
Kiwis record
Kiwis: 43 tests, 24 wins, 1 draw, 18 losses, 55.81% success rate
2008 World Cup beating Australia 34-20 in the final
2010 Kiwis defeat Australia in Four Nations final
2014 Kiwis win their second Four Nations title