[1][12][14][16] In 1995, Electroputere relegated to the second league, Dănciulescu having offers to remain in the first division, choosing to sign with Dinamo București after being convinced by the club's officials Mircea Stoenescu and Cornel Dinu.

[1][13][14] During the first half of the 1997–98 season, Dănciulescu had a brief spell in the Turkish Super League with Altay who paid Dinamo for him and Marius Coporan a fee around $400.000, playing seven games and scoring one goal against Beşiktaş, being brought there by coach Marian Bondrea and he was teammate with another Romanian, Dănuţ Moisescu.

[1][13][12][21] In the following season, he won the 1998–99 Cupa României, being used by coach Emerich Jenei in the first 51 minutes when he replaced him with Ionuț Luțu in the victory at the penalty shoot-out from the final against Rapid București.

[1][13][21][29] He came back strong during the following season, after he scored 16 goals in 26 games, also helping the club win the Cupa României, being used by coach Ioan Andone in all the minutes from the 1–0 victory in the final against Național București, the fans eventually accepting him as he became a top-scorer of the team, making a successful couple in the team's offence in the following years with Claudiu Niculescu, the Romanian press calling them the "N&D couple", a nickname inspired from the first letters of their family name and the Romanian pop band "N&D".

[13][31][41][43] In August 2009 after scoring a double against Ceahlăul Piatra Neamț, he became the fourth overall goalscorer in the history of the Romanian First Division with 187 goals, only behind Dudu Georgescu, Rodion Cămătaru and Marin Radu.

[44][45] He helped the club fulfill "The wonder from Liberec" after winning with 3–0 the away game against Slovan Liberec, as the first leg was lost with the same score, qualifying after the penalty shoot-out to the group stage of the 2009–10 Europa League, however shortly afterwards he left Dinamo to go play for Hércules Alicante in Segunda División as he was not getting along with coach Dario Bonetti, his last game being a 1–0 away victory against rivals Steaua București after which he was applauded by the 10.000 people who were at the stadium, including Steaua's fans.

[1][13][47][49][50] In August 2009, Dănciulescu signed a two-year contract with Spanish side Hércules Alicante in the Segunda División who paid Dinamo around €400.000, as he was wanted there by his former coach from The Red Dogs, Esteban Vigo.

[54] He helped the team win the 2011–12 Cupa României, being used by coach Dario Bonetti in the first 71 minutes when he replaced him with Cătălin Munteanu in the 1–0 victory from the final against Rapid București.

[57][59] On 13 November 2014 after Flavius Stoican's departure from Dinamo București, the club's officials appointed Dănciulescu to lead the team in the remaining four games until the end of the first half of the season.