The head of data operations for Cambridge Analytica during the US election campaign has been sacked from the Sydney start-up where he recently found work.

Following queries from the Herald regarding his position and a week of revelations regarding alleged privacy breaches at his old employer, Joshua Coe was let go by local data firm Hyper Anna.

Joshua Coe, a data analyst during the US election, was working for a Sydney start-up. Credit:Hyper Anna

A second Sydney resident linked to Cambridge Analytica - which is accused of misusing personal data and trying to manipulate the US election - now heads a marketing division at Virgin Australia airlines.

A series of Australian connections to the troubled analytics firm has emerged this week as the company faces claims it used millions of Facebook accounts to mine data for electioneering.