Leah Castillo
San Antonio
Summary
Finance Manager with 4+ years of experience overseeing Accounts Payable, Accounts Receivable, payroll, and month-end close in fast-paced organizations. Proven ability to manage $500K+ weekly cash flow, strengthen internal controls, support audits, and improve financial accuracy and operational efficiency. Recognized for hands-on leadership, cross-functional collaboration, and process improvement.
Overview
9
9
years of professional experience
Work History
Manger of Finance
Texas Organ Sharing Allaince
01.2020 - 09.2024
- Led daily AP, AR, and payroll operations, ensuring accuracy, compliance, and timely processing
- Managed payroll for salaried and hourly employees, including commissions, bonuses, deductions, and leave balances
- Oversaw processing of $500K+ per week in invoices and vendor payments
- Strengthened internal controls and accounting procedures to support audits and regulatory compliance
- Performed bank reconciliations and supported month-end and year-end close activities
- Analyzed aging reports, resolved discrepancies, and improved collections and payment cycles
- Prepared financial and operational reports for leadership and budget support
- Partnered with HR, vendors, and internal departments to resolve payroll and billing issues
Accounts Payable Specialist
Left Lane Sports
05.2018 - 06.2019
- Processed invoices and payments totaling up to $500K weekly
- Scheduled ACH and check payments to ensure timely vendor disbursements
- Resolved billing discrepancies and vendor chargebacks
- Reconciled AP accounts monthly to eliminate errors and inaccuracies
- Maintained strong vendor relationships and payment accuracy
Accounts Receivable
Cliffs Hotel and Spa
08.2015 - 05.2018
- Reconciled bank statements and ensured transaction accuracy
- Managed daily cash handling up to $5,000 and posted customer payments
- Processed disputes and chargebacks to maintain accurate financial records
- Maintained QuickBooks entries and performed account reconciliations
- Assisted with month-end close, including journal entries and accruals
Education
High School Diploma -
Douglas Macarthur
Skills
- Accounts Payable & Accounts Receivable (AP/AR)
- Payroll Processing & Compliance
- Bank & Account Reconciliations
- Month-End & Year-End Close
- Journal Entries & Accruals
- Audit Preparation & Support
- Internal Controls & Process Improvement
Timeline
Manger of Finance
Texas Organ Sharing Allaince
01.2020 - 09.2024
Accounts Payable Specialist
Left Lane Sports
05.2018 - 06.2019
Accounts Receivable
Cliffs Hotel and Spa
08.2015 - 05.2018
High School Diploma -
Douglas Macarthur