Mr Samson Chandrarathna
- Got the external degree of Human Resources from university of Jayawardhanapura.
- Special trainee about Floriculture and Horticulture in National Youth Services Council and Peradeniya botanical garden.
- Special trainee about public relations in Sri Lanka Parliament.
- Personal assistant to Hon. Ranil Wickramasinghe.
- Publicity officer to Ministry of Youth affairs and Employment.
- Welfare Director in Ceylon Oxygen Company Ltd.
- Media Officer in National appenticity board and the Chairman of Biyagama Labour Co-operative society.
- Director of Marketing in L.M.L Pvt. Ltd.
- President in Siyane Environmental Organization.
- Parliament secretary to the Minister of Parliament Hon. Ranil Wickramasinghe.
- Currently working as the Public Relation Officer to the Hon. Prime Minister Ranil Wickramasinghe.
Samson Chandrarathna was a major idol on building and improving sanitary services in Biyagama electorate which was announced as an electorate in 1977. He was a senior adviser to the parliament minister Hon. Ranil Wickramasinghe in 1977 in order to develop Biyagama electorate.