Part Time Linux System Administrator Jobs in Georgia

Applied Technical Services, LLC (“ATS” or the “Company”) is a leading provider of critical testing, inspection, certification, and compliance services. The Company serves clients across a diverse set of large and stable end markets including manufacturing, power generation, aerospace, medical, and defense. ATS was founded in 1967 and is headquartered in Marietta, GA. Today the Company employs nearly 2,100 team members in over 95 locations across the United States.

Our purpose is to create a safe and reliable world and our mission is to deliver assurance through precise technical and professional services.

Job Title: Calibration Collections-Finance Administrator (Part-Time)

We are seeking a passionate, enthusiastic Calibration Collections -Finance Administrator to support our Calibration department based at our corporate office in Marietta, GA. This position is responsible for calibration customer accounts, with a strong focus on collections, account reconciliation, and customer service related to invoices, statements, and billing inquiries.  This role requires a detail-oriented professional who can combine financial accuracy to resolve billing discrepancies and maintain positive relationships with our calibration department customers. 

This is a part-time position that requires an approximate work schedule of 20 hours per week. 

Key Responsibilities

• Collections and account follow-up
• Proactively work the calibration accounts to ensure timely payment of outstanding invoices.
• Perform routine outreach via phone and email to follow up on past due balances.
• Establish professional relationships with customer AP departments and key contacts.
• Monitor aging reports daily and prioritize collection efforts.
• Escalate chronic delinquent or possible credit hold accounts to Calibration Finance Manager.

Account Reconciliations

• Reconcile customer accounts to ensure invoices, payments, credits, and adjustments are accurately applied.
• Investigate and resolve discrepancies between customer records and company records.
• Review unapplied cash, short pays, overpayments, and credits.
• Provide detailed account backup, invoices, pack slips, tracking numbers to customers upon request.
• Work with internal departments to resolve billing errors or missing documentation.

Customer Service – Invoice, Statement, and Charge Inquiries

• Serve as the primary point of contact for customers with billing-related questions, including:
• Questions about specific invoices, line items, and charges.
• Requests for copies of invoices, backup documentation, or proof of service or delivery.
• Questions regarding pricing, contract terms, or billing frequency.
• Clarification of credits, adjustments, or disputed charges.
• Requests for account statements or account summaries.

Reporting & Documentation

• Maintain notes in Traverse on collection activity and customer communication.
• Provide regular aging updates and status reports to management.
• Support month-end closing activities related to accounts receivable.

• High School diploma (or equivalent)
• 3+ years of experience in accounts receivable, collections, or corporate billing and/or a combination of education and experience
• Experience working with customer accounts.
• Strong understanding of invoice processing, payment application, and account reconciliation.
• Excellent written and verbal communication skills.
• Ability to professionally manage difficult or sensitive customer conversations.
• Strong attention to detail and organizational skills.
• Proficiency in accounting systems and Microsoft Excel.
• Ability to work cross-functionally with internal teams.

U.S. Persons” Only

A requirement of this position is access to information that is subject to U.S. export controls under the U.S. International Traffic in Arms Regulations (“ITAR”). Accordingly, the company will consider only “U.S. Persons” for this position. A “U.S. Person” includes (a) U.S. citizens or nationals; (b) U.S. lawful permanent residents (i.e., “green card” holders); (c) persons granted refugee status; or (d) persons granted asylum in the United States. This information is collected solely for purposes of complying with U.S. export control requirements and will not be used to unlawfully discriminate in the hiring process.

EOE/AA/M/F/Vet/Disability

Applied Technical Services is an equal opportunity employer where employment is based upon personal capabilities and qualifications without discrimination due to race, color, religion, gender, age, national origin, disability, veteran status or any other protected characteristic as established by law.