Billing Officer

Job Responsibility

1. Invoicing and Billing Duties:
• Issue invoices and credit notes for all assigned customers.
• Process invoices and verify billing-related documents such as POs, employee timesheets, and other relevant documents required for billing.
• Manage data for invoicing from the DBC system in conjunction with the Work Order system.

2. Coordination:
• Coordinate with internal and external departments to generate documents for billing according to set objectives.
• Monitor related documents for timely invoicing and address any delays or additional requirements to ensure timely billing.
• Assist in price calculations for new customer service billing.
• Coordinate with sales and contract departments for initial billing.
• Resolve issues with documents received for billing from operations/sales departments.
• Send PDF data for billing to the Eastern Zone and scan and send invoice copies to customers.
• Negotiate with customers preliminarily if there are billing discrepancies and inform management for further action.
• Track purchase orders (POs) for certain customers used for invoicing.
• Calculate outstanding work balances and overtime (OT, CN) before invoicing.
• Generate intercompany and uniform invoices.
• Control monthly billing operations.

3. Reporting:
• Prepare relevant reports including Unbilled balance checks to be sent to the Billing Supervisor.
• Update Unbilled Reports and data for meetings and upon request.

4. Other Duties:
• Assist in team tasks and collaborate through buddy systems to cover for team members’ leave.


• Bachelor’s degree in accounting or finance or related fields.
• Good data record and proficient in MS. Excel with aptitude to learn new software.
• Organized and detailed oriented.
• Fair in English.
• Effective communication, negotiation and interpersonal skills.
• Ability to work under pressure.
• Comfortable working as part of a multidimensional team.


Send your CV and Application directly to:

Khun Dadchanee [Government Relation Manager]
อีเมล: :

IFS Facility Services Co., Ltd.
365/1 Phaholyothin Road, Anusawaree, Bangkhen, Bangkok 10220, Thailand

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