Pluim was sent on a season-long loan to Zwolle for the 2012–13 season.[6][7] After returning to Roda JC, he suffered relegation to the Eerste Divisie with the team in May 2014. On 2 February 2015, Pluim's contract with Roda JC was terminated by mutual agreement.[8]
Pluim signed a one-and-a-half-year contract with Willem II on 4 February 2015.[9] He made his debut ten days later as a 60th minute substitute for Robert Braber, in a competition match against Vitesse, which ended in a 2–0 loss.[10] Pluim made eight appearances for Willem II for the remainder of the season, but did not appear in the plans of then head coach Jurgen Streppel in the following season. The club subsequently terminated his contract on 31 August 2015.[11]
In December 2015, Pluim signed a one-year contract with Becamex Binh Duong in Vietnam.[11][12] Without him making an appearance, the club won the Vietnamese National Football Super Cup. On 23 February 2016, it was announced that Pluim had left the club without having made a single appearance.
On 8 August 2023, Bosowa founder Sadikin Aksa asked the management and coaches of PSM Makassar to drop mainstay midfielder Pluim from the PSM Makassar squad. Bosowa is PSM's main sponsor and largest shareholder. The reason Pluim was dropped, according to Sadikin Aksa, was because of the age factor that affected the performance of the Dutch player, which resulted in his movements to be considered slow.[15]
On 12 November 2023, Pluim made his debut for Borneo Samarinda against Bali United in a 2–1 win.[16] On 10 December 2023, Pluim scored his first goal for Borneo Samarinda against PSIS Semarang in a 2–0 win.[17]
Pluim canceled his retirement after leaving Borneo Samarinda. The 35 year old midfielder returned to his career in the Netherlands. Pluim has officially joined SV Epe, an amateur club competing in the eighth caste of the Dutch League, aka Derde Klasse, for the 2024/2025 season.[18]
^"Wiljan Pluim maakt zijn basisdebuut voor Willem II". TOP sportmanagement (in Dutch). 23 February 2015. Retrieved 7 January 2021. Pluim kwam vorige week ook al tegen zijn oude club Vitesse in actie. Toen mocht hij na een uur invallen voor Robert Braber.