Accounting Specialist in Milwaukee, Wisconsin at Sigma Commercial LLC

Accounting Specialist
Sigma Commercial LLC | Milwaukee, WI

About the Role
Sigma Commercial LLC, a Milwaukee-based holding company, is hiring an Accounting Specialist to support day-to-day accounting across its group of operating businesses. You'll be the person keeping invoices, receivables, and financial records moving accurately and on time across multiple entities and systems. This is a hands-on, detail-driven role suited to someone who is comfortable working across more than one software platform and more than one business at a time.

Key Responsibilities
Process accounts payable: review, code, and enter vendor invoices; route for approval; schedule and process payments
Process accounts receivable: generate and send invoices, apply payments, track outstanding balances, and follow up on past-due accounts
Maintain accurate records in QuickBooks across multiple company entities
Enter and reconcile transactions in industry-specific software used across the group's construction, maintenance, and property management operations (training provided on proprietary systems)
Reconcile bank and credit card statements monthly
Support month-end close by preparing schedules and resolving discrepancies
Maintain organized, audit-ready documentation for all transactions
Assist with vendor and tenant/customer inquiries related to billing and payments
Flag irregularities or errors proactively rather than letting them sit until close

Qualifications
2+ years of accounting or bookkeeping experience, ideally including both AP and AR
Proficiency with QuickBooks required
Comfortable learning and working across multiple software systems; prior exposure to construction or property management software is a plus but not required
Strong attention to detail and follow-through on outstanding items
Able to manage competing deadlines across multiple business units
Good written communication for vendor and customer follow-up

What Sets a Strong Candidate Apart
Experience supporting more than one legal entity or business unit out of a shared back office
A track record of cleaning up or tightening AP/AR processes, not just processing what's handed to them
Comfort asking questions when something looks off, rather than pushing it through