[1] In 1986, Synon established the Westgate Community Initiatives Group, a non-profit employment services provider based in Melbourne's western suburbs.
She served as general manager until 1993, when she took up a position with the Victorian government as director of employment in the Department of State Development.
She was active in the Liberal Party of Australia (Victorian Division) for two decades prior to her appointment to the Senate,[1] including as president of the Williamstown branch.
[1] Synon was appointed to the Senate on 13 May 1997 to fill the casual vacancy caused by the resignation of Jim Short, whose original six-year term was due to conclude on 30 June 1999.
Her failure to be placed higher was due to her alignment with Michael Kroger and Peter Costello during a time of factional conflict with Jeff Kennett's supporters.