Noordin is the son of Garissa Senator Yusuf Haji. Yusuf Haji also served as the the Defense Minister during Kibaki era.

Noordin was born in Garissa before he joined Wales College,Cardiff for a Law degree. Upon completion, he joined the National Intelligence Service as a graduate trainee.

Over time, he rose through the ranks to become Deputy Director in charge of Economic Crimes at NIS.

On March 14,2018 President Kenyatta picked Noordin Haji to take over office of DPP.The no nonsense Kenyan outshined  replaced Keriako Tobiko who was appointed CS Environment.

Noordin’s first major assignment was to prosecute NYS cases,a job that needed stamina and thick skin.