Saranga held key marketing positions in diversified fields such as rubber product manufacturing, software development and project consulting before he was selected in 2004 to be the youngest advertising manager of Wijeya Newspapers Limited, the leading media organisation in Sri Lanka, which publishes leading brands such as The Sundy Times, Lankadeepa, Daily Mirror, DailyFT and HI magazine. In 2007, he was promoted as the Assistant General Manager, becoming the youngest person to hold that position in 25 year history of Wijeya Newspapers Limited.  

He is currently the Director of Marketing for Ceylon Newspapers, the publisher of Mawbima and Ceylon TODAY, the second largest newspaper group in Sri Lanka.

His Sinhala language newspaper Mawbima has won the Award for “The Best New Entrant of the Year” at Sri Lanka’s biggest and most recognised Marketing / Branding Award Ceremony “SLIM Brand Excellence 2013." It was the first newspaper to win an award in the 13 year history of the awards show. Innovative Mawbima Lion Flag introduced by them on 62nd national day has won the first-ever Cannes Award for Sri Lanka in 2012. Their latest innovation "World's First Mosquito-Repellent Newspaper" published on World Health Day 2014 attracted the eye of international media and got shortlisted at Cannes in 2014.

He has initiated and introduced numerous innovations to print media in Sri Lanka.

He is currently sharing his knowledge as a visiting lecturer of University of Kelaniya on Advertising, School of Media Arts and Management on Advertising and Media Marketing. He is serving as a guest lecturer at University of Colombo , University of Sri Jayewardanepura, Sri Lanka Institute of Marketing and Open University of Sri Lanka.

He holds many positions in professional and social organisations including Board Director and sole print media representative in International Advertising Association (IAA ) in 2009 – 2011, The President of Sri Lanka China Youth Front and Secretary of Sri Lanka China Journalits forum. He has served as the President of Colombo University MBA Alumni Association in 2013/14.  

He is a regular contributor for local newspapers and magazines in marketing and Management disciplines. His articles appeared in many international websites such as www.articlebase, www.articlealley.com, www.amazines.com, www.goarticles.com, www.thefreelibrary.com and quoted by hundreds of websites throughout the word.

Saranga has won the prestigious International Brand Leadership Award at the “Global Awards for Brand Excellence 2013” which was held at Mumbai, India. Further he has won the Gold Medal for Strategic Management at the MBA Level for his academic Excellence.

Saranga Wijeyarathne obtained his Master of Business Administration (MBA) from University of Colombo and the first degree in Marketing Management from University of Sri jayewardanepura. He is a member of Sri Lanka Institute of Marketing (SLIM) and completed Licentiate level of Institute of Chartered Accountants of Sri Lanka.