Accounting Officer - AR

About LINE MAN Wongnai

LINE MAN Wongnai is one of Thailand's fastest-growing technology companies, operating three core business groups: On-demand Services under the LINE MAN brand, the leader in food delivery, mart delivery, messenger, transportation, and telepharmacy; Merchant Digital Solutions under the Wongnai brand, the leading provider of POS and digital solutions for merchant management, beauty, and wellness clinics; and Pay & Financial Services under the LINE Pay brand, an integrated online and offline payment platform.
As a data and AI-driven company, our mission is to Digitalize Everyday Life Services, guided by our core values: Innovate Faster, Go Deeper, and Respect Everyone. Together, we power a digital ecosystem that serves 10 million users, 520,000 active online and offline merchants, and over 290,000 active riders and drivers nationwide.

Join us, and you'll work alongside talented, driven people who take real ownership from day one. Here, your work won't just move a project forward, it'll shape how millions of people live every day.

What you'll do:

Invoicing & Billing:

• Generate and distribute accurate invoices to customers in a timely manner, ensuring adherence to company policies and customer-specific requirements.
• Verify billing data, investigate, and resolve any discrepancies or issues.
• Process credit memos, adjustments, and refunds as required, ensuring proper documentation.

Cash Application:

• Accurately and efficiently post customer payments (checks, wire transfers) to the correct accounts and invoices.
• Perform daily reconciliation of cash receipts with bank statements and resolve any variances.
• Proactively investigate and resolve unapplied cash, payment discrepancies, and short payments.

Collections:

• Manage a portfolio of customer accounts, proactively contacting customers regarding overdue accounts via phone, email, and mail, following established collection policies and procedures.
• Develop and execute effective collection strategies for challenging accounts, negotiating payment plans and following up on commitments to ensure adherence.
• Research, analyze, and resolve billing and payment disputes in a timely manner to facilitate collections, coordinating with sales, customer service, and other relevant departments.
• Maintain detailed and accurate records of all collection activities, communications, and promises to pay within the AR system.
• Prepare and analyze aging reports regularly to identify delinquent accounts, prioritize collection efforts, and assess potential bad debt risk.
• Escalate complex or high-risk delinquent accounts to management with clear summaries and recommended actions.

Reconciliation & Reporting:

• Perform regular reconciliation of the accounts receivable sub-ledger to the general ledger, identifying and correcting discrepancies.
• Prepare periodic AR aging reports, collection forecasts, DSO (Days Sales Outstanding) analysis, and other relevant financial reports for management review.
• Assist with month-end and year-end closing procedures related to accounts receivable, ensuring accurate cut-off.

Customer Service & Relationship Management:

• Serve as a primary point of contact for customer billing inquiries and issues, providing professional and timely responses.
• Build and maintain positive, professional relationships with customers to foster a collaborative environment and facilitate timely payments.
• Collaborate cross-functionally with sales, customer service, and other internal departments to efficiently resolve customer issues impacting collections.

What you'll need:

• Associate’s or Bachelor’s degree in Accounting, Finance, Business Administration, or a related field (preferred but not always required).
• 0–2 years of experience in accounts receivable, collections, general accounting, or a similar finance-related role.
• Strong collection skills, with the ability to professionally follow up on overdue accounts, negotiate payment arrangements, and resolve billing issues efficiently.
• Strong verbal and written communication skills, especially in handling customer inquiries and disputes.
• Proficiency in Microsoft Excel (e.g., VLOOKUP, pivot tables) and other MS Office tools.
• Ability to learn and adapt to new systems quickly.
• Excellent attention to detail and accuracy in processing and reconciling transactions.
• Good organizational and time-management skills.