Major General K W Jayaweera USP psc is presently serving as the Commandant –Defence Services Command and Staff College. He is an alumnus of Kegalu Vidyalaya, Kegalle, where he demonstrated excellence in academics, athletics, and extra-curricular activities. He was enlisted into the Regular Force of the Sri Lanka Army as an Officer Cadet on 10 February 1992.
Upon commissioning as a Second Lieutenant, he was posted to the Sri Lanka Sinha Regiment. With the establishment of Mechanized Infantry Regiment in 2007 he was transformed into Mechanized family. Over a distinguished military career spanning more than 33 years, he has rendered exemplary service through a wide range of command, staff, and instructional appointments, contributing significantly to operational effectiveness, training excellence, and institutional development.
Command Appointments
Throughout his career, Major General Jayaweera has exercised command at various levels, leading troops and formations in both operational and administrative roles, while demonstrating sound leadership, professionalism, and tactical acumen.
• Platoon Commander – 6th Battalion & 10th Battalion, Sri Lanka Sinha Regiment
• Company Commander – 10th Battalion, Sri Lanka Sinha Regiment
• Second-in-Command – 6th Battalion, Sri Lanka Sinha Regiment
• Second-in-Command – 2nd Mechanized Infantry Regiment
• Commanding Officer – 2nd Mechanized Infantry Regiment
• Commander – 552 Infantry Brigade
• General Officer Commanding – 24 Infantry Division
Staff Appointments
In staff capacities, he has contributed to planning, coordination, policy formulation, and operational management at unit, formation, and strategic levels, both locally and internationally.
• Intelligence Officer – 10th Battalion, Sri Lanka Sinha Regiment
• Adjutant – 10th Battalion, Sri Lanka Sinha Regiment
• Staff Officer III (Administration) – Army Headquarters
• General Staff Officer II – Army Command and Staff College, Batalanda
• General Staff Officer I (Operations & Training) – Security Forces Headquarters, Jaffna
• Staff Officer I – Military Secretary’s Branch, Army Headquaters
• General Staff Officer – Military Operations Branch, UN Peacekeeping Mission in Haiti
• Military Assistant to the Secretary of Defence – Ministry of Defence
• Defence Adviser of Sri Lanka to the United Kingdom

Instructional and Training Appointments
Major General Jayaweera has played a pivotal role in shaping future military leaders by serving in key instructional and training appointments, thereby enhancing professional standards and doctrinal development within the Sri Lanka Army.
• Officer Commanding – Randeniwela Company, Sri Lanka Military Academy, Diyatalawa
• Chief Instructor – Army Training School, Maduru Oya
• Senior Instructor – Army Training School, Maduru Oya
• Head of the Training Team – Officer Career Development Centre, Buttala
• Commandant – Mechanized Infantry Training Centre
• Directing Staff – Army Command and Staff College, Batalanda
Professional Military Education
He has continuously enhanced his professional competence through a comprehensive programme of local and overseas military education, reflecting a strong commitment to lifelong learning and professional development.
Local Courses
• Officer Cadet Course – Sri Lanka Military Academy, Diyatalawa
• Battalion Support Weapon Course – Infantry Training Centre, Minneriya
• Junior Staff Course – Sri Lanka Military Academy, Diyatalawa
• Army Command and Staff Course – Army Command and Staff College, Batalanda
Overseas Courses
• Officer Cadet Course – Pakistan Military Acadamy,Kakul,Abbottabad
• Battalion Support Weapon Course – India
• Young Officers’ Course – Pakistan
• Junior Command Course – Army War College, Mhow, India
• Command and Staff Course – Command and staff College,Quetta, Pakistan
Other Qualifications
• Diploma in Higher Defence Management
• Masters in Defence Studies
• Masters in Art and Science of Warfare
• Master of Arts in International Relations
Honours and Personal Details
In recognition of his exemplary conduct, professionalism, and dedicated service to the nation, Major General Jayaweera has been duly honoured and continues to uphold the finest traditions of the Sri Lanka Army. He was awarded the Uththama Seva Padakkama (USP) for his unblemished service in Sri Lanka Army. He has visited more than 11 countries and stand candid example for his international exposure.
Major General Jayaweera is practicing Buddhist. His hobbies are reading and travelling. He is married to Mrs. Chithrani Gunasinghe (house wife) and is blessed with a son, Susara Ruwantha Jayaweera (26 years) and a daughter, Esandi Sadothma Jayaweera (22 years).