All foreigners wishing to live and work in Singapore must have a work permit or an employment pass (like a visa), which must be obtained on their behalf by their employers. The work permit is for those whose basic monthly salary is $2,500 S or less. To apply for an employment pass, the applicant must have a salary of more than $2,501 S per month. The employer must also apply for a dependent's pass for the employee’s dependents. Permission to live in Singapore is included in the employment pass and dependent's pass, rather than as a separate visa. Through various programs offered by the government, expatriates can apply for a permanent residence visa either before coming to Singapore or after starting work in Singapore.

This is just a sample of what you'll find in the complete Singapore guide.