[3] In 2002, Moni joined Muktijoddha Sangsad KC and later helped the club win the 2003 National Football League title with 6 goals including one in the final against Mohammedan SC.

[12] On 17 May 2005, Moni underwent a successful knee operation in New Delhi, India, after he tore a ligament during the Federation Cup semifinal against Mohammedan on April 28 of that year.

The club had been given direct entry to the 2021–22 Bangladesh Championship League after meeting all the required criteria needed to participate in the second-tier, and Moni's inaugural match as coach, ended with a 3–0 victory over Kawran Bazar PS.

On 27 March 2022, Moni resigned from head coach duty and filed Match fixing allegations against the club's players and officials.

The club's final two games under Moni, against Uttara FC (1–2) and Farashganj SC (3–1) were investigated by the Bangladesh Football Federation disciplinary committee and surprisingly even after all the allegations against them and match footage evidence they were declared innocent and given clearance to participate in the Bangladesh Premier League; as they had earned promotion the same season.

[20][21] In June 2022, Moni took charge of Saif SC Youth Team, who would take part in the Dhaka Second Division League, which is the fourth-tier of Bangladeshi football.

Initially he was involved in player selection process alongside ex-national team midfielder Shahedul Alam Shahed.

[24] Moni's first game as the club's head coach ended in a 2–1 victory over Alamgir Somaj Kallayan, on 19 August 2022.

[30] In August 2023, Moni was appointed as the head coach of Bangladesh national under-16 team for the 2023 SAFF U-16 Championship, held in Bhutan.