Billing Specialist

Location: 2550 W Union Hills Dr, Phoenix, AZ 85027

Job Type: Contract (12 months) – Possible Temp-to-Hire

Contract Duration:
November 16, 2026 – November 15, 2027

Work Schedule:
Monday–Friday, Hybrid

We are seeking a detail-oriented Billing Clerk to join our client's Consolidated Billing Center in Phoenix, Arizona. This is an entry-level opportunity for candidates with experience in billing, accounts receivable, or accounting/finance.

The selected candidate will be responsible for preparing and reviewing customer invoices, validating billing information, investigating discrepancies, processing billing adjustments and refunds, and maintaining accurate customer account records.

The role includes on-the-job training to help the candidate learn the company's billing systems and processes.

• Prepare, create, and revise customer invoices accurately and in a timely manner.
• Review customer accounts and verify billing transactions for accuracy.
• Perform data integrity checks and investigate discrepancies before invoices are processed.
• Compile, analyze, and validate customer billing and revenue information.
• Research and resolve customer billing issues and account discrepancies.
• Process billing adjustments, credit balances, and customer refund requests.
• Maintain accurate customer billing records and supporting documentation.
• Collaborate with team members to resolve unfamiliar billing issues.
• Follow established internal controls, including SOX compliance requirements.
• Support billing activities related to landfill and transfer station operations.
• Identify opportunities to improve billing accuracy and operational efficiency.

• High school diploma or GED.
• At least one year of relevant experience in billing, accounts receivable, accounting, finance, or a related field.
• Alternatively, one year of prior experience working for Waste Management, in addition to the education requirement.
• Proficiency in data entry, ten-key numeric entry, Microsoft Excel, and the MS Office/Windows environment.
• Strong attention to detail and analytical problem-solving skills.
• Good organizational, multitasking, and time-management abilities.
• Strong written and verbal communication skills.
• Ability to work effectively under pressure and meet deadlines.
• Ability to work collaboratively with team members and customers.

• Experience with SQL or querying billing data.
• Experience with high-volume invoice processing.
• Familiarity with billing systems, customer account reconciliation, credit balances, and refunds.
• Experience identifying billing errors, investigating root causes, and improving processes.

• Monday through Thursday:
  Onsite at the Phoenix office.
• Initial training:
  Approximately 2–4 weeks onsite.
• Candidates must be comfortable commuting to the Phoenix office four days per week.