Dewangga made his first-team debut on 7 March 2020 as a substitute in a match against Persela Lamongan at the Surajaya Stadium, Lamongan. This season was suspended on 27 March 2020 due to the COVID-19 pandemic. The season was abandoned and was declared void on 20 January 2021.[3]
Dewangga made his debut of the new league season match against Persela Lamongan on 4 September 2021 as a substitute for Rio Saputro in the 46th minute.[4] Dewangga scored his first league goal from a free-kick in injury time 93rd minute, against Bhayangkara on 12 March 2022.[5]
In November 2021, Indonesian coach, Shin Tae-yong sent Dewangga his first call up to the full national side, for the friendly matches in Turkey against Afghanistan and Myanmar.[11] He made his official international debut on 25 November 2021, against Myanmar in a friendly match in Antalya, Turkey.[12] On 15 December 2021, Dewangga came out as the best player in a 0–0 draw against Vietnam on the third matchday of Group B of the 2020 AFF Championship.[13]