For someone from a culture that values equality and individuality, working in Taiwan will be quite an experience: it might be eye-opening, shocking, or even traumatizing.
Money
Companies will exploit loopholes and break laws to save money, often at the expense of employees. Employees usually work overtime without being paid, but that’s the least to worry about. Any employee in Taiwan should be familiar with Taiwan’s health insurance laws, laborer’s insurance laws, and tax laws. (Common tricks of unethical employers: underinsuring or not insuring at all, misreporting employees’ incomes, and stealing tax deductible allowances from employees.)
Foreign employees should also study visa laws and immigration laws to know their rights, and should be mindful to make sure that employers do everything legally. A foreign employee suffers immediate legal consequences when an employer breaks laws.
Power
Managers have little, if any, practical knowledge about how things should be done. They issue orders to anyone they outrank. Accepting unsolicited advice from underlings is a taboo. Office pecking order exists and is enforced to the fullest. It’s more important to be liked by managers than to be a team player who actually pulls his/her own weight. Heck, it’s more important to be liked by other teammates than to pull any weight at all.
Sex
Sexual discrimination and sexual harassment do occur, but a victim would find very little sympathy from coworkers. Such things are not openly discussed, and blame is often placed on the victim. The sad truth is that most people don’t care. Coworkers can be very hostile to a newcomer who is pregnant. They assume that she is a leech who would just quit after her paid maternity leave. It is not unheard of that an employer fires a pregnant employee under some trivial pretext.
If one is ready to put up with nonsense and look the other way when something goes wrong, the Taiwanese work environment is not all that bad.