Mr. Rathnayake is a highly accomplished telecommunications professional with over 25 years of experience at Sri Lanka Telecom PLC. He commenced his career as an Engineer and has since progressed through several senior management roles, including Deputy General Manager and General Manager, and is currently serving as Deputy Chief Officer - Regional Operations.

He holds a Master of Business Administration and a Master of Science in Telecommunication Engineering from the University of Peradeniya, together with a Bachelor of Science in Electrical and Electronics Engineering, reflecting a strong blend of strategic business acumen and deep technical expertise.

He is a Corporate Member of the Institution of Engineers, Sri Lanka (IESL) with over 20 years of post-charter experience and a Member of the Engineering Council of Sri Lanka. Widely recognized for his leadership in large-scale regional operations and complex network infrastructure initiatives, his achievements include award-winning leadership, major national network modernization programs, the establishment of regional network management centers, and sustained regional performance excellence acknowledged by senior management.