He worked first as Secretary to the South West Bay Cooperative Society, from 1978 to 1982, then went into private business (in "retail and fishing") until 1998.[5]
Initially a backbencher, he was appointed Minister for Cooperatives and Ni-Vanuatu Business Development (i.e., indigenous business development) in Prime MinisterSato Kilman's Cabinet on February 18, 2010. Kilman was attempting to consolidate his government's majority prior to an expected vote on a motion of confidence in Parliament.[7] He lost office on April 24 when the Kilman government was ousted in a motion of no confidence, regained it on May 13 when the Court of Appeal declared the election of the new government unconstitutional,[8] and lost it again on May 17 when Kilman reshuffled his government and replaced him with Don Ken.[9]
Kilman's government fell on 21 March 2013 when it lost the confidence of Parliament, and new Prime Minister Moana Carcasses Kalosil appointed Sae to the position of Minister for Infrastructure and Public Utilities two days later.[10] He crossed the floor on 15 May 2014 to help bring down the Carcasses government. New Prime Minister Joe Natuman maintained Saimon at his post as Minister for Infrastructure.[11] He lost office on 11 June 2015 when the Natuman government was ousted in a motion of no confidence.[12]
On 11 February 2016 he was elected as Speaker of the Parliament of Vanuatu.[13] He served until 6 September 2019. He was then appointed as Minister of Justice and Social Welfare in 20 April 2020.[14] He served in that role until 2022.
