In October 2014, Ottio played for the PNG Prime Minister's XIII against the Australian Prime Minister's XIII, which saw him subsequently sign with the Papua New Guinea Hunters of the Queensland Cup, starting in 2015.[5] Ottio made his debut for the national side in May 2015 against Fiji. In February 2016, Ottio signed a two-year contract with the Canberra Raiders,[6] spending the duration with the Raiders' feeder team, the Mount Pritchard Mounties, in the New South Wales Cup. He was named on the wing in the 2016 NSW Cup Team of the Year, having scored 29 tries in 23 games,[7] the New South Wales Rugby League's leading tryscorer in 2016.[8] Ottio was not considered for PNG's May 2017 match against the Cook Islands as he had recently returned from a long-term injury.[9] In October 2017, Ottio was named in PNG's squad for the 2017 World Cup.[10]
Ottio won six caps for the national side, known as the Kumuls. His debut was in May 2015 against Fiji at the Robina Stadium, Gold Coast. A second cap, also against Fiji came a year later and Ottio scored his debut international try at the Parramatta Stadium in Sydney. Selected for the Kumuls squad for the 2017 World Cup, he played in all three of the team's group games played in Port Moresby and scored a try in the game against Wales. His final international match was the quarter-final defeat by England at the Melbourne Rectangular Stadium.[1]