Commercial Administrative Assistant - Yishun

Role overview

We are seeking a conscientious, responsive and proactive Commercial Administrative Assistant to manage day-to-day administrative processes and support our commercial and sales activities. You will handle customer enquiries, coordinate with internal teams, maintain accurate records and ensure smooth office operations.

• Serve as the first point of contact for customer enquiries via phone, email and messaging; log and route enquiries promptly.
• Prepare quotations, sales orders, purchase orders, delivery orders and invoices in Xero.
• Perform basic bookkeeping in Xero: invoice posting, credit notes, bank reconciliation and AR follow-ups.
• Maintain customer and pricing data, update CRM or tracking sheets and generate simple weekly sales/admin reports.
• Coordinate with operations on scheduling, deliveries, collections and service appointments; track job status to closure.
• Support tender submissions and documentation, collate certificates, insurance and vendor registration forms where needed.
• Manage office administration: filing, stationery and supplies, petty cash, meeting scheduling and basic facility needs.
• Uphold data accuracy, confidentiality and compliance with internal controls and safety practices.

• Conscientious: strong ownership of tasks and follow-through.
• Responsive: clear and timely communication with customers and teammates.
• Proactive: anticipates needs, flags risks early and suggests improvements.
• Technically adept: well-versed in Xero bookkeeping and proficient in Microsoft Office (Excel, Word, Outlook; PowerPoint a plus).

• Proven experience in administrative assistance and customer service; exposure to commercial or sales support preferred.
• Hands-on experience with Xero for invoicing and basic bookkeeping.
• Strong communication and interpersonal skills with a service mindset.
• Excellent attention to detail and organisational skills; able to manage multiple tasks independently.
• Diploma or Degree in Business Administration, Management or related field preferred (or equivalent experience).

• Experience with basic AR collection follow-ups and bank reconciliation.
• Familiarity with logistics coordination or field service scheduling.
• Intermediate Excel skills such as lookups, filters and simple pivots.

Eligibility

Singaporeans, Permanent Residents and Malaysians with valid work authorisation in Singapore are welcome to apply. We are an equal opportunity employer and welcome applicants from all backgrounds.

• Competitive salary with performance-based increments.
• On-the-job training in our systems and processes.
• Collaborative team environment with clear growth pathways into Sales Support or Sales Operations.

How to apply:

Please submit your CV to atc-assets@hotmail.com with the subject line “Commercial Admin Assistant – Mandai”. Include your earliest start date and expected salary.