Intermediate AP Specialist en Mercury Systems

Mercury Systems is seeking the best and brightest talent to help us bring cutting-edge technology to mission-critical aerospace and defense applications, advancing innovation where it matters most. We are seeking a detail-oriented Intermediate AP Specialist to join our accounting team. This role is responsible for processing vendor invoices, handling weekly payments, reconciling vendor statements, and supporting month-end close activities. Candidates should be detail-oriented, able to work well on a team, and capable of working in a fast-paced environment.

Job Responsibilities:

• Process a high volume of vendor invoices accurately and timely
• Review and verify invoice accuracy, including both purchase order and non-purchase order invoices
• Resolve discrepancies with both external vendors and internal departments
• Prepare and process weekly payment runs, including Check, ACH, and Wire payments
• Assist with month-end closing, including accruals and reporting
• Respond to vendor inquiries and maintain positive relationships
• Ensure compliance with company policies and internal controls
• Support audits by providing documentation and responding to inquiries
• Identify and assist with implementing process improvements

Required Qualifications:

• 2–3 years of experience in accounts payable or general accounting
• Proficiency with accounting software
• Intermediate to Strong Excel skills (pivot tables, VLOOKUPs, etc.)
• Strong organizational skills and great attention to detail
• Able to work in a fast-paced environment to prioritize tasks to meet deadlines
• Strong communication and interpersonal skills

Preferred Qualifications:

• Associate’s degree in Accounting, Finance, or related fields
• Knowledge of 3-way match and PO-based invoicing
• Familiarity with expense reporting tools (e.g., Concur, Expensify)  “This position requires you to access information that is subject to U.S. export regulations.  You may only access such information if you are a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S.