He made his debut off the bench on 30 July 2011, alongside fellow current professional Jesse Edge, and scored in the 3–1 win against Forrest Hill Milford.

[5] Following a successful trial period in the Netherlands, Thomas signed for PEC Zwolle in September 2013, and made his debut for the club on 30 October 2013 against amateur side Wilhelmina '08 in the third round of the KNVB Cup, scoring the first goal in a 4–0 win.

[7] Thomas continued to impress for PEC Zwolle in the following seasons following his transition to a holding midfielder, with his rise being compared to that of Dutch legend Arjen Robben by former manager Ron Jans.

[13][14] As part of his rehabilitation, Thomas spent time working with Olympic swimming champion Pieter van den Hoogenband.

[15] On 6 October 2019, after 14 months out injured, Thomas finally made his debut for PSV as an 85th minute substitute for Érick Gutiérrez in a 4−1 win over VVV Venlo.