Yes, a Dependant’s Pass (DP) holder can work after the employer has received the Letter of Consent (LOC) from the Ministry of Manpower.
Suggested Readings
Can Dependant’s Pass holders who own a company / business firm / LLP apply for a Letter of Consent?
As an EntrePass holder, can I get Dependant’s Pass for my family?
Why do I need a Letter of Consent (LOC) as a Dependant’s Pass (DP) holder?
Do Dependant’s Pass holders with the Letter of Consent need to contribute to any social security or skill development fund, etc.?