Accountant – General Ledger, AP & AR

About the role

Atomic is seeking an Accountant to own day‑to‑day General Ledger, Accounts Payable and Accounts Receivable operations at its Detroit headquarters. You will manage the full vendor invoice lifecycle, process customer invoicing and collections, and ensure accurate, timely transaction flow through the company’s accounting systems.

Key responsibilities

• Prepare and submit journal entries and perform account reconciliations.
• Process vendor invoices end‑to‑end, including three‑way matching, GL and cost‑center coding, and routing for approval.
• Manage payment runs across ACH, check, wire, and corporate card, ensuring timely disbursement and compliance with vendor terms.
• Maintain vendor master data, payment terms, W‑9 collection, and 1099 reporting.
• Generate and issue customer invoices, including milestone billing, down payments, and shipment‑based invoicing.
• Own accounts receivable aging, conduct proactive collections outreach, send payment reminders, and resolve disputes to minimize DSO.
• Apply customer payments, post cash receipts, and reconcile AR sub‑ledger to the general ledger.
• Reconcile vendor statements, research invoice discrepancies, and partner with Purchasing to ensure PO and receiving accuracy.
• Support month‑end close by preparing AP and AR reports and accruals.

Required profile

• Organized and detail‑oriented.
• Excited to help establish scalable accounting processes in a fast‑growing, AI‑driven manufacturing environment.
• Ability to work closely with the Accounting Manager and broader Finance team.

Required skills

• Journal entry preparation.
• Account reconciliations.
• Three‑way invoice matching.
• ACH, check, wire, and corporate card payment processing.