[7] In Round 1, Kasiano made his NRL debut for the Canterbury-Bankstown Bulldogs at prop against the Wests Tigers in the 24–14 win at ANZ Stadium.

[8] He played 19 games in his debut season and picked up the Steve Mortimer Medal for the Bulldogs Rookie of the Year.

[10][11] In Round 2 match against the New Zealand Warriors at Mt Smart Stadium, Kasiano scored his first NRL try in the Bulldogs 32–18 win.

[17] In Round 21 match against the St George Illawarra Dragons at Jubilee Oval, Kasiano scored a double in the 39–20 win.

[20] In Round 22 against the Brisbane Broncos at Suncorp Stadium, Kasiano suffered a season ending ankle injury in the Bulldogs 41–10 loss.

He and fellow Bulldogs teammate Frank Pritchard, who was captaining the team, made headlines in the match after making a 'double-team' try-saving hit on Tonga's Jorge Taufua in 77th minute forcing him over the sideline and securing Samoa the narrow margin 18–16 victory at Cbus Super Stadium.

[28] In Round 6 against the Melbourne Storm, Kasiano played his 100th NRL career match in the Bulldogs 18–12 win at AAMI Park.

[29] On 7 May 2016, Kasiano played for Samoa in the 2016 Polynesian Cup against Tonga, where he started at prop in the 18–6 win at Parramatta Stadium.

[30] In Round 24 against the Brisbane Broncos, Kasiano was charged with a grade two dangerous contact charge after he kicked Broncos veteran Corey Parker in the face when he attempted to leave a tackle, leaving him with a split lip and chin during the Bulldogs 20–10 loss at Suncorp Stadium.

At the end of the 2018 NRL season Kasiano was released by Melbourne, and signed with Super League's Catalan Dragons.