Lt Col Dayang Suriyati binti Haji Junaidi was born 24 July 1971. She enlisted into the Royal Brunei Armed Forces in 1995 and graduated from the SAFTI Military Institute, Singapore in 1997.
Throughout her career, she has held numerous key appointments: Recruit Intake Commander (1997-1998), SO3 Intelligence and Operations at Royal Brunei Service Support (1998-1999), SO3 Research (1999-2002), SO2 Foreign Military Liaison as well as SO2 Intelligence (2002-2006) at Directorate of Intelligence, SO2 Intelligence and Security at Royal Brunei Land Force (2006-2009), SO2 Intelligence Operations (2010-2011), Deputy Chief Instructor (2011-2013) at Defence Academy. She assumed the appointment of Chief Instructor Defence Academy in 2013. She is currently holding the appointment of Deputy Commandant of Defence Academy since 2016.
Lt Col Dayang Suriyati holds a Bachelor of Arts in Public Administrative Studies from University Brunei Darussalam in 1995 and a Master of Science in Strategic Studies from the S.Rajaratnam School of International Studies (RSIS), Singapore in 2010. In July 2006, she was bestowed Pingat Setia Bakti (P.S.B). She is a keen sportsperson and enjoys a healthy lifestyle.