Billing & Operations Support Specialist
Resume:
CRISTINA SCHIMMEL
Casper / Douglas / Gillette, WY
307-***-**** ********@*****.***
PROFESSIONAL SUMMARY
Reliable and detail-oriented Billing, Bookkeeping, and Operations Support professional with 8+ years of experience in industrial, oil & gas, warehouse, and office environments. Strong ability to follow instructions, maintain accuracy, support team operations, and meet daily work requirements. Experienced in AR/AP, invoicing, reporting, warehouse support, and safety-focused work. Bilingual in English and Spanish.
CORE SKILLS
Accounts Payable & Receivable (AR/AP) • Billing & Invoicing • Reconciliation Warehouse & Operations Support • Inventory Handling • Safety Compliance Following Written & Verbal Instructions • Teamwork & Reliability SAP • QuickBooks • TRUX • Microsoft 365 • Excel
Bilingual (English / Spanish)
PROFESSIONAL EXPERIENCE
Field Billing Coordinator – Republic Services 2020–2026
• Managed full-cycle AR/AP, invoicing, and reconciliations
• Processed payments and handled sensitive financial transactions accurately
• Resolved billing discrepancies and maintained contract compliance
• Generated daily financial and operational reports
• Maintained accurate records in SAP, TRUX, and Excel
• Supported audits, safety, and environmental procedures Office Manager – Greene Enterprises 2013–2019
• Managed bookkeeping, payroll, and financial reporting
• Oversaw office operations and compliance requirements
• Handled workers’ compensation, unemployment, and regulatory documentation Warehouse / Operations Support
• Followed written and verbal instructions to complete assigned tasks
• Assisted with inventory organization and material handling
• Maintained clean, safe, and organized work areas
• Worked with supervisors and team members to meet daily goals CERTIFICATIONS & EDUCATION
PEC / Safeland (Oil & Gas Safety Certification)
ISNetworld Compliance Experience
Accounting Coursework – Gillette College
REFERENCES
Available upon request
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