With his impressive height, his unique skillful left-foot and his high workrate in the field, coach Nguyễn Hải Biên repositioned Hoàng Đức to play in different midfield positions.

[2][3] In 2018, Hoàng Đức started 17 of the 18 games in various positions,[5][6] scoring 9 goals and providing 3 assists to help Viettel win the 2018 V.League 2, thus promoting to the V.League 1 in 2019.

[12][13] On 8 October 2024, with only 3 months in contract left with Thể Công-Viettel, Hoàng Đức was transferred to V.League 2 side Phù Đổng Ninh Bình.

[16][17][18] On 14 September 2019, he made his debut for Vietnam national team in the 2022 FIFA World Cup qualification game against the United Arab Emirates, coming in as a substitute in the 81th minute.

Later, when Vietnam reached the third round of the qualifiers, he established himself as an important starter in the team with his impressive capacities in both defending and attacking.