Ahmed completed his elementary education from Gulistan Shah Abdul Latif School located in Karachi.

[1] Ahmed started his legal career as an advocate on 18 January 1986 and joined Sindh High Court Bar Association (SHCBA) on 4 April 1988.

[2] Ahmed was part of the five-judge bench which disqualified the-then Prime Minister Nawaz Sharif in the Panama Papers case, penning a dissenting opinion in the split verdict.

[1] On 4 December 2019, the law ministry notified the appointment of Ahmed Chief Justice of Pakistan (CJP) upon approval by President Arif Alvi.

A senior member of the Pakistan Bar Council (PBC) Munir Kakar and vice chairman of the Balochistan Bar Council (BBC) Qasim Ali Gajaizi and the chairman of the executive committee (BBC) in a statement regretted that such a directive was against legal and constitutional principles, especially when a 10-judge Supreme Court bench had already quashed the presidential reference filed against Justice Isa — a reference which they said was based on malice.