作为兼职

on the side

作为的英语翻译：

action; as; by way of; conduct; deed; look on as; qua; regard as; take for
【法】 act of commission; feasance

兼职的英语翻译：

part-time job; concurrent post; sideline; plurality
hold two or more posts concurrently; pluralize
【法】 collateral office; plural offices; side line