Location: Oak Lawn, IL
Job Type: Full-Time
Schedule: Monday – Friday, 7:30 AM – 4:00 PM
About Us
Demco Products and 3B Filters are partner companies based in Oak Lawn, Illinois, proudly family-owned and operated.
- Demco Products serves as the manufacturing arm, specializing in precision CNC machining.
- 3B Filters focuses on the assembly and distribution of high-pressure filter housings.
For over 75 years, Demco has delivered high-quality machined parts and outstanding customer service. 3B Filters, established in 2001, is recognized globally as a leading manufacturer of high-pressure filtration solutions. Our filters, operating from 3,000 PSI to 40,000 PSI, serve critical applications across the aerospace, petroleum, chemical processing, transportation, and defense industries.
We are proud to hold ISO 9001:2015 certification, reflecting our commitment to quality, reliability, and excellence.
Position Overview
We are seeking an organized and detail-oriented Office Manager with bookkeeping skills to support both 3B Filters and Demco Products at our Oak Lawn location. This role combines front-office administration, executive support, and day-to-day bookkeeping, and plays a key part in keeping both companies' financial records accurate and operations running smoothly.
Key Responsibilities
Front Office & Administrative Support
- Serve as the first point of contact for the office, handling incoming calls and welcoming visitors.
- Manage time and attendance tracking for plant employees, including coordinating time-off requests.
- Gain familiarity with our shipping workflow and step in to assist as needed.
HR, Onboarding & Benefits Administration
- Coordinate ADP onboarding for new hires.
- Support first-day onboarding activities and ensure new employees have the information and resources they need.
- Coordinate 60-day benefit meetings and provide the appropriate benefit documentation.
- Coordinate 90-day benefit meetings and provide the appropriate benefit documentation.
- Assist with termination and resignation processes, including completing required documentation and following established procedures.
Accounts Receivable & Payable
- Issue and post customer invoices, and monitor outstanding AR balances, following up on overdue accounts.
- Enter and process vendor bills for payment.
- Handle credit card payment processing.
- Coordinate billing between the two companies (intracompany invoicing).
- Prepare and manage proforma invoicing as needed.
- Perform credit checks for new customers and maintain related documentation.
Bookkeeping & General Ledger
- Record and categorize daily bank transactions.
- Reconcile bank accounts on a monthly basis.
- Maintain accurate general ledger entries.
- Support monthly and quarterly inventory adjustments.
Purchasing & Vendor Management
- Coordinate purchasing of raw materials, office supplies, shop supplies, and CNC machine tools & consumables.
- Maintain relationships with outside vendors and service providers.
Qualifications
- Prior experience in office administration, bookkeeping, or accounting support.
- Familiarity with AR/AP processes, bank reconciliations, and general ledger entries.
- Strong organizational skills and attention to detail.
- Proficiency with accounting/bookkeeping software, ERP and Microsoft Office/Excel.
- Excellent communication and interpersonal skills.
- Ability to manage multiple priorities and work independently.
Pay: $42,000.00 - $52,000.00 per year
Benefits:
- 401(k)
- 401(k) matching
- Dental insurance
- Health insurance
- Life insurance
- Paid time off
- Retirement plan
- Vision insurance
Application Question(s):
- How many years of bookkeeping experience do you have?
Work Location: In person
