Business Support Specialist - W&L- 3PL

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.

Iron Mountain is seeking an analytical Business Support Specialist to join our Warehouse and Logistics Operations team.

In this role, you’ll have the opportunity to serve as the key financial and administrative link for our growing Third-Party Logistics (3PL) operations. You will partner directly with site general managers and finance leaders and be responsible for providing support to functional areas of Finance and Administration including, program support, billing and AR transaction support, general administration duties. Position is critical to ensure efficient operation and compliance for all remaining territory administration functions and key support for the centralized teams in Collections, Accounts Payable and Billing.

What You’ll Do (Responsibilities)

In this role, you will:

• Drive Financial & Revenue Accuracy: Conduct revenue and cost variance analyses, investigate major discrepancies, and manage complex billing inquiries, credit/debit memos, and work order pricing.
• Track & Improve Operational Performance: Establish and monitor key site KPIs to track productivity, quality, and cost controls, while helping build reporting and P&L data processing.
• Strengthen Client & Partner Relationships: Partner directly with operational leaders and external clients to resolve complex issues, ensuring high customer service standards and seamless account management.
• Support Site Administration & Continuity: Perform office administrative functions for the district, support local telephone systems, maintain business continuity plans, and partner with leaders on continuous improvement projects.

What You’ll Bring (Skills & Qualifications)

• The ideal candidate will have:
• 3+ years of experience in warehousing, fulfillment, supply chain, distribution center, third-party logistics (3PL), or manufacturing operations.
• Strong knowledge of operational finance, P&L reporting, cost variance analysis, and complex billing management.
• Experience and proven ability to partner with cross-functional stakeholders and support strategic client-facing initiatives.
• Bachelor’s or Master’s degree preferred.
• Google Workspace platforms.

What We Offer (Benefits)

• Shifts: Schedule: Monday - Friday, 8:00 AM - 5:00 PM (flexible availability as required)
• Location: Onsite Riverside, CA
• Competitive Compensation aligned with your experience.
• Full Health and Dental Benefits starting on the first day of employment.
• Unlimited Paid Time Off (PTO): We believe in supporting work-life balance and offer unlimited PTO for you to rest and recharge. 
• Financial Wellness: 401(k) with Company Match and an Employee Stock Purchase Program.
• Professional Growth: Opportunities for continuous learning and professional growth, including Tuition Reimbursement.

Ready to bring your analytical background to a growing 3PL operations team? Apply today to take the next step in your career with Iron Mountain!

Please note that an employee's starting salary may vary based on a variety of factors. Where State, Municipal, Provincial, Territorial or other legal minimum wages exceed the federal minimum wage, employees are entitled to the higher rate.