Here are some recommended novels featuring female protagonists with multiple identities in the workplace:
1. "全能千金帥炸了" by 童涅兒: The story follows the protagonist, Qiao Qing, who has been disguising herself for years. However, when someone threatens the people she cares about, she decides to reveal her true abilities and identities. As her various talents and backgrounds are exposed, those who once looked down on her regret their actions. Qiao Qing becomes independent and capable, but there is one enigmatic man who can't be kept at bay.
2. "蜜桃色巧合" by 老衲吃素: The female lead in this novel is burdened with debt and works as a temporary employee. After being abandoned by her boyfriend, she focuses on her career and eventually gets promoted. One night, she gets drunk and ends up having a relationship with her boss, who happens to be passing by. Despite the significant gap between them, she doesn't expect anything more from him. However, he becomes interested in her and their relationship develops further. As the female lead excels in both her personal and professional life, she proves that she deserves everything she has achieved.
Please note that these recommendations are based on the provided search results and may not encompass all available novels in this genre.