Executive and Personal Assistant to the CEO

Singapore Citizens or Permanent Residents only.

About the job

Be the CEO's trusted right hand across business and personal matters.

Quantum is seeking a highly organised and discreet Executive and Personal Assistant to provide combined professional and personal support to the CEO. This is a hands-on role for someone who can run a demanding schedule, manage sensitive business and personal matters, and keep everything moving across a diversified group spanning energy, mining, consulting, and digital sectors.

You will be the CEO's trusted right hand, managing the diary, communications, travel, and day-to-day priorities on both the business and personal sides. The right person is proactive, dependable, and comfortable switching between board-level support and personal errands without dropping a detail.

What you'll do

• Manage the CEO's calendar, meetings, and competing priorities.
• Draft, review, and edit correspondence, reports, and presentations.
• Prepare briefing materials and agendas, and track follow-up actions.
• Coordinate across business units, advisers, and external stakeholders.
• Arrange business and personal travel, including flights, visas, accommodation, and itineraries.
• Manage personal appointments, bookings, and household or family coordination as needed.
• Run errands and handle personal purchases and administration.
• Manage expenses, filing, and liaison with drivers, vendors, and service providers.
• Support events, functions, and hosting arrangements.
• Handle confidential information with complete discretion.

What we're looking for

• At least five years of experience as an Executive Assistant, Personal Assistant, or in a combined role supporting senior executives.
• Excellent organisational skills and the ability to manage multiple priorities under pressure.
• Strong written and verbal communication skills in English (Mandarin is an advantage).
• Proficiency in Microsoft Office and common digital and productivity tools.
• High level of discretion, integrity, and professionalism.
• Flexible and resourceful, comfortable with a schedule that can change at short notice.
• Singapore work rights are essential. Employment Pass sponsorship is not available.

Why join us

This is a rare opportunity to work directly with the CEO of a growing, diversified group and become an indispensable part of how the business and the office run. You will gain exposure across multiple industries and senior stakeholders, with the trust and responsibility to manage matters end to end.

Additional information

• Singapore-based, full-time position.
• Flexibility on hours is required, including occasional evening and weekend availability.
• Some regional travel within Southeast Asia may be required.