From 2012 to 2014, Pauli played for the Parramatta Eels' NYC team.[4][5] In August 2012, he played for the Australian Schoolboys.[6] On 5 July 2013, he re-signed with the Eels on a two-year contract.[7]
2014
In February, Pauli played for the Eels in the inaugural NRL Auckland Nines.[8] In Round 4, he made his NRL debut for the Parramatta club against Penrith, playing off the interchange bench in Parramatta's 32–16 win at Parramatta Stadium.[9][10][11] In round 8 against the North Queensland Cowboys at 1300SMILES Stadium, he scored his first NRL career try in Parramatta's 14–42 loss.[12][13] On 3 May 2014, he played for the New South Wales under-20s team against the Queensland under-20s team, playing in New South Wales' 30–8 win at Penrith Stadium.[14][15][16] He finished off his debut year in the NRL having played in 17 matches and scoring three tries for Parramatta.[17] On 8 September 2014, he was named in the Samoa train-on squad for the 2014 Four Nations,[18] but did not make the final 23-man squad.[19]
2015
On 31 January and 1 February, Pauli again played in the NRL Auckland Nines.[20] On 11 July, he re-signed with the Parramatta club on a two-year contract.[21][22] He finished off the 2015 season having played in 16 matches for Parramatta.[23]
2016
On 29 January, Pauli signed a two-year contract with the Newcastle Knights starting effective immediately, after being released from the final two years of his Parramatta contract.[24] In February, he played for the Knights in the 2016 NRL Auckland Nines.[25]
In round 1, he made his club debut for Newcastle against the Gold Coast Titans, playing off the interchange bench in the 12–30 loss at Cbus Super Stadium.[26] In round 12 against his former club Parramatta, he scored his first try for Newcastle outfit.[27] He finished the 2016 season having played in 15 matches and scoring one try.[28]
After continuing to build up fitness in the Intrust Super Premiership NSW, Pauli's season was ended in July after fracturing his fibula in a match.[33] The injury prevented him from playing another game for the Knights as he was not offered a new contract beyond 2017.[34]
On 22 November 2017, it was announced that Pauli had signed a one-year contract with English Super League side Wakefield Trinity with the option of extending for a further season.[35][36]