At Iron Mountain we know that work, when done well, makes a positive impact for our customers, our employees, and our planet. That’s why we need smart, committed people to join us. Whether you’re looking to start your career or make a change, talk to us and see how you can elevate the power of your work at Iron Mountain.

We provide expert, sustainable solutions in records and information management, digital transformation services, data centers, asset lifecycle management, and fine art storage, handling, and logistics. We proudly partner every day with our 225,000 customers around the world to preserve their invaluable artifacts, extract more from their inventory, and protect their data privacy in innovative and socially responsible ways. 

Are you curious about being part of our growth stor​y while evolving your skills in a culture that will welcome your unique contributions? If so, let's start the conversation.

Job Summary

Iron Mountain is seeking a meticulous Billing & Dispute Resolution Specialist to join our Customer Excellence team.

In this role, you will be responsible for ensuring prompt revenue collection and maintaining financial integrity by acting as the key problem-solver for billing and payment issues, upholding Iron Mountain’s commitment to security and accuracy.

What You’ll Do (Responsibilities)

In this role, you will:

• Responsibility 1: Main Responsibility - with key outputs/deliverables.

  Serve as the primary contact for all invoice and inventory-related disputes, conducting highly analytical investigations for root cause analysis. You will implement final solutions and process essential financial corrections such as Credit/Debit Notes and Inventory Adjustments.

• Responsibility 2: Collaborate with [teams, stakeholders, clients] to achieve outcomes.

  Collaborate professionally with diverse stakeholders, including customers, vendors, and internal teams, to manage the complete invoicing process and follow up on overdue accounts.

• Responsibility 3: Ensure compliance with organizational standards, policies, or regulations.

  Ensure strict adherence to Purchase Order (PO) Principles by verifying the alignment of services/goods with the PO before processing final billing or resolving disputes. You will also regularly update the Accounts Receivable (AR) database to ensure real-time accuracy.

What You’ll Bring (Skills & Qualifications)

The ideal candidate will have:

• Minimum of 3 years of hands-on experience in Billing, Accounts Receivable (AR)/Payable (AP), Collections, or a highly related financial/dispute resolution role.

• Strong knowledge of invoicing, collection procedures, payment terms, and inventory management principles.

• Technical Skills: Strong proficiency in Microsoft Excel (including Pivot Tables and essential formulas) and competency in Google Workspace Suite.

• Proven ability in highly analytical skills, meticulous attention to detail, and independent problem-solving to investigate and resolve complex discrepancies effectively.

• Education Requirement: A Bachelor’s degree in Accounting, Finance, Supply Chain Management, Business Administration, or a related field. Prior experience using Oracle or another major ERP system is a significant plus.

What We Offer (Benefits)

• Salary details: 25,000 - 30,000 THB/Monthly.

• Shifts: Monday - Friday, 8:30 AM - 5:30 PM (Full-time Onsite).

• Location: Samut Prakan (Soi Wat Namdaeng) – Conveniently located near the MRT Yellow Line, Sri Dan Station.

• Competitive compensation and benefits aligned with the experience.

• Comprehensive health, wellness, and retirement plans.

• Opportunities for continuous learning and professional growth.

Category: Customer Support