This study aimed to assess the leadership styles of senior and junior managers in Vietnamese engineering firms and their effects on employee initiatives. Conducted across three engineering companies in Ho Chi Minh City—Dai Nam Viet Construction JSC, Mien Bac Construction Consultant Ltd., and Mien Nam Steel Structure JSC—the research involved 180 employees, predominantly from the Millennial generation, with a higher male representation, a significant number pursuing master's degrees, and mostly in contractual employment