 Oparanya has 23 years experience in local and international Finance Management, Audit and Business Consultancy.He belongs to the Orange Democratic Movement and represented Butere Constituency in the National Assembly of Kenya since the 2007 Kenyan parliamentary election.Oparanya was among ministers appointed by secondment of Prime Minister Raila Odinga from The Orange Democratic Movement party after the prime minister signed the National Accord Act to form a coalition government with President Kibaki after the disputed 2007 elections.