LISA ZUNIGA
Grand Prairie,TX
Summary
Results-driven professional with expertise in accounts receivable and billing, honed at Celanese. Proven track record in streamlining invoice processing and enhancing accuracy, leading to reduced discrepancies. Skilled in dispute resolution and audit support, leveraging strong communication to maintain client relationships and ensure timely payments. Proficient in billing software and month-end closing procedures.
Overview
11
11
years of professional experience
Work History
National Account Coordinator
Automated Gate Supply
Fort Worth, TX
07.2025 - 01.2026
- Processed billing inquiries and resolved discrepancies efficiently.
- Assisted in maintaining accurate billing records using financial software.
- Collaborated with team members to streamline invoicing procedures.
- Managed customer accounts to ensure timely payments and updates.
- Analyzed billing data for accuracy and compliance with company policies.
- Contacted clients with past due accounts to formulate payment plans and discuss restructuring options.
- Reduced billing errors through consistent review and reconciliation of account discrepancies.
- Streamlined workflow for faster invoice processing, improving overall efficiency in the department.
- Collaborated with cross-functional teams to ensure accurate and timely billing for all products and services provided.
- Organized accounts for financial audits and supported audit process.
- Supported month-end closing processes through detailed reconciliation tasks.
Accounts Receivable and Billing Specialist
Celanese
Irving, TX
04.2017 - 01.2025
- Managed end-to-end billing processes to ensure timely invoicing and collections.
- Developed and maintained relationships with clients to facilitate payments and resolve disputes.
- Implemented process improvements that increased accuracy in billing entries and reduced discrepancies.
- Analyzed aging reports to identify overdue accounts, proactively engaging clients for resolution.
- Maintained strong client relationships through effective communication regarding account status, invoice inquiries, and payment arrangements.
- Implemented an automated billing system that streamlined invoice generation and distribution, increasing efficiency and reducing manual workload.
- Coordinated with third-party collection agencies as needed for escalated delinquent accounts, ensuring optimal recovery results while protecting company reputation.
- Utilized Microsoft Excel, QuickBooks and Oracle software to manage invoices and payments.
- Audited and corrected billing and posting documents for accuracy.
- Responded to customer concerns and questions on daily basis.
- Monitored outstanding invoices and performed collections duties.
- Produced and mailed monthly statements to customers and assisted with related requests for information and clarification.
Billing Coordinator
Trinity Rail
Dallas, TX
05.2015 - 04.2017
- Managed billing inquiries and resolved discrepancies to ensure timely payments.
- Developed and maintained accurate billing records using advanced software tools.
- Collaborated with cross-functional teams to streamline invoicing processes and improve efficiency.
- Trained new staff on billing procedures and system navigation, enhancing team performance.
Education
High School Diploma -
Nimitz High School
Irving, TXSkills
- Deadline oriented
- Audit support
- File management
- Data entry proficiency
- Accuracy and precision
- Dispute resolution
- Invoice processing
- Audits
- Billing software
- Invoice generation
- Month-end closing procedures
- Accounts receivable expertise
- Statement processing
Work Availability
monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
swipe to browse
Timeline
National Account Coordinator
Automated Gate Supply
07.2025 - 01.2026
Accounts Receivable and Billing Specialist
Celanese
04.2017 - 01.2025
Billing Coordinator
Trinity Rail
05.2015 - 04.2017
High School Diploma -
Nimitz High School