Chief Warrant Officer (CWO) Sanjee Singh enlisted into the SAF on 2 Jul 1991.

During his service in the organisation, CWO Sanjee has served in various key appointments such as Regimental Sergeant Major of Army Deployment Force, Brigade Sergeant Major of 7th Singapore Infantry Brigade, Formation Sergeant Major in Headquarters Guards, Commanding Officer of Specialist and Warrant Officer Advanced School, and Sergeant Major of Army and Training Doctrine Command.

CWO Sanjee's professional education includes courses such as the United States Ranger Course, United States Army Sergeant Major Course and Goh Keng Swee Command and Staff College Executive Course.

CWO Sanjee's awards and distinctions include the State Medal for the Military (Long Service Medal), State Medal for the Military (Efficiency Medal) and the Singapore Armed Forces Long Service and Good Conduct Medal (30 Years).

CWO Sanjee is married to his wife, Jacqueline, and they have two children; Joshua and Jannelle.