The McLaren driver's chief race engineer is usually Andy Latham, but he is on paternity leave at present.
The British team said that leave will continue "for a few races".
During that time, Hamilton's usual performance engineer Mark Temple has stepped into the main role, beginning with this weekend's Singapore Grand Prix.
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Stand-in engineer for Hamilton
|FP1||Fri 25 Oct|| |
|FP2||Fri 25 Oct|| |
|FP3||Sat 26 Oct|| |
|QU||Sat 26 Oct|| |
|Race||Sun 27 Oct|| |