Mr. Lalith Goonathilake studied at Sri Sumangala College, Panadura and entered to the Faculty of Engineering, University of Peradeniya in 1977, passed out in 1981 as a Mechanical Engineer.
He served in the University as an instructor in the Department of Mechanical Engineering for a period of 9 Months and joined the Department of Irrigation as a trainee Mechanical Engineer. In 1983 he joined the Department of Highways as a Mechanical Engineer and served as the Regional Mechanical Engineer Eastern Province and the Regional Mechanical Engineer Western Province. In 1987 he has joined the Road Development Authority as a Senior Mechanical Engineer. In 1988 he joined Road Constructing & Development Co. Ltd (RCDC) as Deputy Engineering Manager in the mechanical division. In Year 1991 he joined as share holding director at OpenArc Systems Management (Pvt) Ltd at the time of inception of the company. Mr. Goonathilake obtained his professional qualifications as a charted mechanical engineer in year 1993. In 1994 he has resigned from RCDC and joined OpenArc as Director Operations and later on he has started his own Computer Hardware Company and left OpenArc to manage the new company. Mr. Goonathilake again came back to OpenArc as the Managing Director, OpenArc Engineering Services (Pvt) Ltd. newly incorporated company under OpenArc Group. Mr. Goonathilake is a charter member of Lions club of Panadura Central in the District 306A1 and held many prestigious positions in club level and district level. He was the club president for two years, Club Secretary, and held the posts of Project Chairman, IT Coordinator, Zone Chairman, Region Chairman and Deputy Cabinet Secretary in the regional level.