Defense Industry Accounts Payable Specialist

Castelion; Torrance (CA); On-site; USD 70,000 - 90,000; Full time

Job summary

Castelion is seeking an experienced Accounts Payable Specialist to join our growing accounting team in Torrance. You will ensure accurate processing of vendor invoices, payments, and employee expense reports, while maintaining strong internal controls.

The ideal candidate brings 3+ years in AP, GAAP knowledge, and proficiency with NetSuite, Ramp, Silkline, and Excel. You will collaborate with Supply Chain and Engineering to resolve discrepancies and support monthly close. [e-mail].

Qualifications

• 3+ years of accounts payable experience, preferably in manufacturing, aerospace, or defense.
• Strong understanding of GAAP and accounting processes related to AP.
• Proficiency with ERP systems (NetSuite preferred), expense management platforms (Ramp), procurement platforms (Silkline), and Excel.

Responsibilities

• Review, code, and process vendor invoices in compliance with company policies and procedures.
• Manage the AP inbox and vendor communications, ensuring timely responses.
• Assist with the three-way matching process (PO, receipt, and invoice) and resolve discrepancies.
• Partner with Supply Chain and Engineering departments to reconcile item receipts, including quantities and prices.
• Confirm vendor payment details and process check runs, ACH payments, and wire transfers.
• Reconcile vendor statements and follow up on outstanding balances.
• Ensure compliance with internal controls and audit requirements.
• Support close activities, including AP accruals.
• Manage the employee corporate card program, including processing monthly expense reports and reimbursements.

Skills

Accounts payable

GAAP knowledge

Attention to detail

Organizational skills

Communication skills

Problem solving

Tools

NetSuite

Ramp

Silkline

Excel

Job description

Castelion is seeking an experienced Accounts Payable Specialist to join our growing accounting team in Torrance. You will ensure accurate processing of vendor invoices, payments, and employee expense reports, while maintaining strong internal controls.

The ideal candidate brings 3+ years in AP, GAAP knowledge, and proficiency with NetSuite, Ramp, Silkline, and Excel. You will collaborate with Supply Chain and Engineering to resolve discrepancies and support monthly close. [e-mail].