Senior AR Collections Specialist

Ultimate Staffing; California; On-site; USD 41,000 - 48,000; Full time

Job summary

Ultimate Staffing is seeking a Senior AR Collections Specialist in Pasadena, CA to manage a portfolio of commercial accounts and drive cash flow. You will contact customers, reconcile accounts, resolve disputes, and collaborate with billing and operations to remove barriers to payment.

Ideal candidates have 3–5 years in accounts receivable and collections, strong communication, and attention to detail. This on-site role offers a weekday schedule and regular overtime as needed.

Qualifications

• 3–5 years of Accounts Receivable and Commercial Collections experience required.
• Strong understanding of AR processes and collections best practices.
• Experience resolving invoice disputes and customer payment issues.

Responsibilities

• Manage a portfolio of commercial accounts and collect on past-due balances.
• Contact customers via phone, email, and written correspondence regarding outstanding invoices.
• Reconcile customer accounts and investigate payment discrepancies.
• Research and resolve billing issues, disputes, short payments, and deductions.
• Process credits, adjustments, and invoice corrections as needed.
• Prepare lien releases to facilitate customer payments.
• Collaborate with billing, operations, dispatch, and field teams to resolve collection barriers.
• Maintain accurate collection notes and account documentation.
• Prepare weekly collection reports and support collection review meetings.
• Monitor aging reports and prioritize collection activities to improve cash flow.
• Provide exceptional customer service while achieving collection objectives.

Skills

Accounts Receivable

Commercial Collections

Account Reconciliation

Customer Service

Communication

Attention to detail

High volume workload

Tools

Microsoft Excel

Microsoft Word

Job description

Location: Pasadena, CA
Pay: $30.00 - $35.00 per hour
Schedule: Full-Time | Monday-Friday

About the Opportunity

We are seeking a detail-oriented Senior AR Collections Specialist to join our growing team. This position is responsible for managing commercial collections, account reconciliations, invoice dispute resolution, and customer account research. The ideal candidate will have strong accounts receivable experience, excellent communication skills, and a proven ability to reduce aging receivables while maintaining positive customer relationships.

Key Responsibilities

• Manage a portfolio of commercial accounts and collect on past-due balances.
• Contact customers via phone, email, and written correspondence regarding outstanding invoices.
• Reconcile customer accounts and investigate payment discrepancies.
• Research and resolve billing issues, disputes, short payments, and deductions.
• Process credits, adjustments, and invoice corrections as needed.
• Prepare lien releases to facilitate customer payments.
• Collaborate with billing, operations, dispatch, and field teams to resolve collection barriers.
• Maintain accurate collection notes and account documentation.
• Prepare weekly collection reports and support collection review meetings.
• Monitor aging reports and prioritize collection activities to improve cash flow.
• Provide exceptional customer service while achieving collection objectives.

Qualifications

• 3-5 years of Accounts Receivable and Commercial Collections experience required.
• Construction, contracting, service industry, or commercial B2B collections experience preferred.
• Strong understanding of AR processes, account reconciliation, and collections best practices.
• Experience resolving invoice disputes and customer payment issues.
• Strong analytical and problem-solving skills.
• Excellent written and verbal communication skills.
• High attention to detail and accuracy.
• Ability to manage a high-volume workload and meet deadlines.
• Proficient in Microsoft Excel and Microsoft Word.
• Self-motivated with the ability to work independently and collaboratively.

Preferred Skills

• Commercial Collections
• Accounts Receivable Management
• Customer Account Reconciliation
• Aging Report Review
• Cash Application Support
• Billing Dispute Resolution
• Credit Memos & Adjustments
• Microsoft Excel
• B2B Collections
• Construction or Contracting Industry Experience

What We're Looking For

• Strong follow-through and accountability
• Excellent customer relationship management skills
• Ability to resolve problems effectively and professionally
• Team-oriented mindset
• Sense of urgency and ownership
• Positive attitude and willingness to learn

Schedule & Work Environment

• Monday through Friday
• Start time between 6:00 AM and 7:00 AM
• Full-time schedule with occasional overtime as business needs require

All qualified applicants will receive consideration for employment without regard to race, color, national origin, age, ancestry, religion, sex, sexual orientation, gender identity, gender expression, marital status, disability, medical condition, genetic information, pregnancy, or military or veteran status. We consider all qualified applicants, including those with criminal histories, in a manner consistent with state and local laws, including the California Fair Chance Act, City of Los Angeles' Fair Chance Initiative for Hiring Ordinance, Los Angeles County Fair Chance Ordinance, and San Francisco Fair Chance Ordinance.