LISA M. VAN IDERSTINE
San Ramon,CA
Summary
Versatile accounting professional with expertise in full-cycle accounts payable, accounts receivable, and payroll management. Proficient in processing high-volume invoices, conducting compliance checks, and resolving billing discrepancies. Experienced in training teams on ERP systems and enhancing operational efficiency through strong analytical skills.
Overview
15
15
years of professional experience
Work History
ACCOUNTING SUPERVISOR
INDEPENDENT CONSTRUCTION
Concord, CA
01.2025 - 01.2026
- Prepared, reviewed, and processed weekly checks runs of up to 1 million, including verifying invoice approvals, resolving discrepancies and ensuring timely vendor payments.
- Processed and entered high-volume trucking and material invoices, ensuring accuracy and proper job cost coding to support financial integrity.
- Resolved billing discrepancies by analyzing trucking material invoices and coordinating with vendors to achieve accurate job cost allocations.
- Managed daily Accounts Payable email inbox, addressing vendor inquiries and collaborating with internal teams to streamline communication.
- Entered payroll for the field personnel daily into Vista Trimble, up to 50 employees.
AP MANAGER
DESILVA GATES CONSTRUCTION
Dublin, CA
01.2021 - 01.2025
- Generated weekly reports to manage check runs ranging from $1M to $20M, ensuring timely vendor payments and proper application of discounts.
- Maintained compliance with internal controls during vendor setup and maintenance, preventing duplicate or unauthorized accounts.
- Managed vendor onboarding and configured accounts for credit card payment processing, reconciling weekly reports for accuracy.
- Led a team of 7 specialists for a multi-million-dollar construction company, ensuring timely completion of department tasks.
- Entered all expense reports reimbursements and miscellaneous check requests from internal departments.
- Prepared and processed 1099s at the end of the year on Green Shades, ensuring all information was correct prior to sending.
- Helped facilitate ERP training with new employees.
- Scanned AR checks through remote deposit electronically.
A/R SPECIALIST
SCIENS BUILDING SOLUTIONS
Pleasanton, CA
01.2019 - 01.2021
- Administered full-cycle construction billing for up to $3M per month, ensuring accuracy and prompt resolution of billing discrepancies to support month-end close.
- Processed customer payment deposits through check, credit card, and EFT, ensuring accurate recording in the accounting system.
- Analyzed weekly A/R reports and sent past due payment notices, improving follow-up on outstanding accounts.
- Worked closely with Project Management team to ensure accurate project billing and timely collections.
- Addressed inquiries and provided assistance to internal and external customers, enhancing communication and support.
- Maintained accurate records by inputting new vendor information into Sage system.
AP SPECIALIST
KITE HILL
Hayward, CA
01.2018 - 01.2019
- Processed 100 invoices daily using Bill.com, ensuring accurate entry of vendor name, due date, and amount.
- Verified and reviewed information in Bill.com for accuracy, maintaining data integrity.
- Added specific accounting codes for GL accounts, departments, or projects, routing them for approval.
- Selected and arranged payment methods for approved invoices, facilitating timely vendor payments.
- Printed and mailed all checks verifying all information.
- Backed up payroll processing in ADP for over 120 employees when needed.
- Assisted AR in deduction collections.
AP SUPERVISOR
COLUMBUS MANUFACTURING
Hayward, CA
01.2011 - 01.2018
- Processed weekly payments averaging $1M via checks and electronic transfers, ensuring timely vendor satisfaction.
- Partnered with team member to review, verify, and process vendor invoices in Adage, ensuring compliance with purchase orders, receiving documents and approval procedures.
- Trained and supervised one direct report in full-cycle accounts payable processes, enhancing team capability.
- Performed reconciliation of vendor statements and resolved any discrepancies promptly.
- Coordinated month-end close accruals with accounting manager, facilitating accurate financial reporting.
- Reviewed employee expense reports verifying adherence to company policies.
- Assisted the Accounts Receivable department in collections and deductions. Took ownership of a high-profile account dispute recovering a $90K deduction.
- Recognized 3 times for being an outstanding employee by receiving 'The Ship' award.
Education
General Education -
San Francisco State University
San Francisco, CAAccounting -
Las Positas College
Livermore, CASkills
- Financial reporting and analysis
- Accounts payable management
- Payroll administration
- CMiC and Sage software
- Billcom and Textura expertise
- ADP and Kronos proficiency
- Microsoft Office applications
Websites
Additional Relevant Experience
- Vulcan Materials, Pleasanton, CA, Plant Administrator - Payroll and AP specialist
- American Asphalt Repair & Resurfacing, Hayward, CA, Accounting Professional - Payroll, AP, AR specialist
Timeline
ACCOUNTING SUPERVISOR
INDEPENDENT CONSTRUCTION
01.2025 - 01.2026
AP MANAGER
DESILVA GATES CONSTRUCTION
01.2021 - 01.2025
A/R SPECIALIST
SCIENS BUILDING SOLUTIONS
01.2019 - 01.2021
AP SPECIALIST
KITE HILL
01.2018 - 01.2019
AP SUPERVISOR
COLUMBUS MANUFACTURING
01.2011 - 01.2018
General Education -
San Francisco State University
Accounting -
Las Positas College