He made his UEFA Europa League debut on 9 July 2009 in the returning leg of the first qualifying round against Finnish club Lahti, playing full-90 minutes in a 2–0 home win at Qemal Stafa Stadium.

[6] Muça's league debut occurred on 23 August in the opening match against Kastrioti Krujë, helping his side with a goal in an eventual 3–1 win.

[10] He finished the season 19 league matches, as Dinamo Tirana was crowned the Champions of Albania by winning the Albanian Superliga title for the 18th time in history.

Muça returned to Tirana ahead of 2010–11 season, making his official debut on 17 December 2010 in a 4–0 home win over Kastrioti; he came on as a 77th-minute substitute for Sabien Lilaj.

[12] Muça made his competitive debut with Vllaznia Shkodër on 10 September 2011 against Laçi at home, playing full-90 minutes in a 3–1 win.

Following his departure, Muça expressed his disappointing for the way Vllaznia released him, after he had decided to remain at the club until the end of the season.

[15] Muça joined Flamurtari Vlorë on a free transfer in January 2012, signing an initial 6-month contract with the option of a further one year.

In the second part of the season, with the arrival of the new coach Nevil Dede, he found more space to play, collecting 900 minutes on the field.

[22] Muça went to play 10 consecutive matches as starter, with Tirana ending the league in the 5th position with 43 points, thus failing to secure a spot in European competitions.

[28] Tirana ensured its posture in Albanian Superliga on 3 May 2014 after a 2–2 away draw against Flamurtari Vlorë in the penultimate week; Muça again played 90 minutes.

[32] He started the new season on 24 August by playing in the opening league match against Apolonia Fier which ended in a 3–0 convincing home win.

[33][34] On 18 October, during the 3–1 home win against Kukësi, Muça conceded a penalty kick in the 81st minute after a handball, but his former teammate Pero Pejić missed it by hitting the crossbar.

[38] On 12 April of the following year, in a home match against Vllaznia Shkodër valid for the 30th week of the league, Muça scored his first career brace, helping the team to overcome the disadvantage of the first half to win the game 2–1.

[39] After the match, he dedicated the goals to the former Tirona Fanatics member, Geri Allkaj, who died in a car accident two days before.

[40] He ended the season with 38 appearances in all competitions, including 32 in league, with Tirana who finished it in the fourth place and was eliminated in semi-finals of 2014–15 Albanian Cup against Laçi with the 1–0 aggregate.

[47] In the returning leg, Muça produced another solid appearance as he helped the team to get a goalless draw and to progress in the next round with the aggregate 2–0.

[55] His performances was praised by the Albania national team coach, Gianni De Biasi, who suggested the club president Safet Gjici to keep him for the entire season.

[59] On 23 December, in the last match of the year, Muça netted the winner as Tirana defeated Kukësi 0–1, earning the first ever victory at Zeqir Ymeri Stadium.

[62] On 13 February, Muça was an unused substitute in the 2–0 home victory over Bylis Ballsh, the first win at the newly renovated Selman Stërmasi Stadium.

Muça was banned for the league match against Flamurtari Vlorë,[72] which ended in a 2–1 away defeat,[73] leaving Tirana mathematically out of European competitions for the fourth consecutive season.

[75] Seven days later, in the first leg of first qualifying round against Rudar Pljevlja, Muça played for 82 minutes in an eventual 1–1 home draw.

[76] On 5 September 2016, the Disciplinary Committee of AFA confirmed that Muça was eligible to play for Tirana in the first league match of 2016–17 after his suspension finished.

[77] His played his first match of the new season two days later against Teuta Durrës which ended in a goalless draw at Niko Dovana Stadium.

[78] On 30 March of the following year, it was confirmed that Muça was not going to play any longer this season as he was going to be operated on his back following the constant pain in Spinal disc herniation.

[87] Later on 22 February, Muça entered as a late substitute for Bedri Greca in the 2–1 away win against Skënderbeu, making his first appearance of the season and the first in 717 days.

[90] Muça was a regular starter during the 2019–20 Albanian Superliga season, scoring one goal in 27 appearances, as Tirana won the championship title for the 25th time in their 100th anniversary.

[96] One week after the event occurred, Muça was accused of public incitement of hatred, and was banned for one year from all competitions by the Disciplinary Committee of Albanian Football Association, effective immediately.