[2] Memelli began his professional career with Skënderbeu in 1999 as a 19-year-old, where he scored 9 goals in 26 league games but could not help his side further as they finished bottom of the table and were subsequently relegated from the Kategoria Superiore.
He joined newly promoted side Laçi in 2004 but did not have a fruitful experience, only featuring in four league games and scoring just once before returning to Elbasani in January 2005.
He scored 8 goals in 12 games in the first half of the season which attracted the interest of several foreign clubs, which included Norwegian side Brann who offered the player a trial in January 2006.
His agent Knut Høibraatens arranged the trial with Brann, which was eventually resulted in a permanent move in March 2006 following a transfer fee of 600,000 kr.
[10] Memelli was on the score-sheet again in the competition, netting a sensational hat-trick in the 3–3 home draw against Swedish side Åtvidaberg in the first leg of second qualifying round.
[11] Memelli missed the second leg due to injury,[12] as Brann didn't go more than a 1–1 at Värendsvallen which confirmed their elimination from the competition through away goal rule.
Memelli returned on action for the league match against Molde by entering as a second-half substitute and providing the assist of the second goal for a 2–1 home win.
[15] About the move to Tirana, Memelli stated: "I spoke with the president Halili for only 15 minutes and everything ended with consensus", while also added that his "goals are the same as those of the club.
"[16] He took squad number 9, and made his official debut on 24 August in the opening week of 2008–09 Kategoria Superiore against rivals Vllaznia, playing for 83 minutes before making place for Blerti Hajdari as the match ended in a goalless draw.
[17] Memelli opened his scoring account in his second appearance for the club six days later, netting in the 42nd minute of the match versus Teuta to give Tirana the first win of the season.
[18] Memelli continued his strong form in September, scoring a tap-in in the 2–0 win at Apolonia which was followed by an impressive hat-trick against Flamurtari at home, taking his tally up to five goals.
[34] Memelli concluded the 2008–09 season by helping Tirana to win its 24 championship in history, playing 28 games and scoring an impressive 22 goals in the process, meaning that he has won the Golden Boot for the first time in career, beating his rival Sebino Plaku.
[46] Memelli's poor season continued, as he returned for the league match against Laçi where he recorded only one shot on target as Tirana lost 1–0.
[67][68] However, he opted to join former Dinamo Tirana coach Zlatko Dalić in Saudi Arabia and completed the transfer at Al-Faisaly Harmah on 17 June 2010.
[69] Memelli made his debut in the Saudi Professional League in the opening matchday of 2010–11 season, netting a late goal which gave his side the tempolarly lead in an eventual 3–3 away draw against Al Wahda.
[72] On 20 January 2014, having been a free agent since leaving Al-Faisaly, Memelli returned to Albanian Superliga and completed a transfer to fellow capital club Partizani Tirana.
[76] Memelli made his official debut on 15 February in the league encounter versus Lushnja, netting a brace inside 12 minutes to give his team a 2–0 win at Qemal Stafa Stadium.
[80] After the end of the match, the club blamed Memelli for the loss which costed the team a place in UEFA Europa League for the next season.
[82] On 24 August 2014, Memelli, aged 34, signed a one-year contract with fellow Albanian Superliga side Laçi, returning in Laç after ten years.
[85] He opened his scoring account against Teuta Durres on 23 November, netting a header in the 23rd minute after a cross from Taulant Sefgjinaj in an eventual 3–0 home win.
[90] In January of the following year, under Otto Barić, Memelli was called up to the Albania B side,[91] making his debut in a friendly against Antalyaspor, scoring in the 49th minute as the match was won 6–2.
On 1 April 2009, made his competitive debut in a FIFA World Cup qualification match against Denmark, entering in the finals minutes in place of Besart Berisha.