Senior Accountant (On-Site)

Filter Services Inc./ Mission Filtration • Des Plaines, IL

5d • $73,000 - $83,000 • Onsite

About The Position

Filter Services, Inc./Mission Filtration (FSI/M) is hiring a Senior Accountant to take full ownership of critical day-to-day accounting operations, transactional cycles, and month-end close responsibilities. The role is fully onsite at the company’s Des Plaines headquarters and calls for an independent, system-savvy professional who can manage end-to-end accounts payable, customer portal accounts receivable, and a complex multi-state sales tax environment.

The Senior Accountant will also audit and overhaul existing amortization schedules, identify process efficiencies, and provide financial analysis to support leadership decision-making. Responsibilities include managing accounting for payroll and benefits, corporate cards and expenses, banking activity, account reconciliations, sales tax filings, budgeting support, and backup coverage for sales commission calculations.

Requirements

• Bachelor’s degree in Accounting, Finance, or a related business field.
• 4 to 7 years of progressive corporate accounting experience, ideally handling high-volume transactions and multi-state compliance.
• Advanced Microsoft Excel skills, including VLOOKUP/XLOOKUP, pivot tables, data cleaning, and rebuilding broken schedules.
• Strong problem-solving skills and a track record of cleaning up messy schedules or historical data.
• Ability to work autonomously and handle strict deadlines.
• Strong verbal and written communication skills and strong data entry skills.
• Good listening and communication skills.
• High attention to detail and ability to ensure accuracy in banking, voids, and invoice processing.
• Strong ethics and compliance focus when handling high-dollar accounts, approvals, and internal audit controls.
• Ability to work independently and as part of a team.
• Ability to sit for prolonged periods and work on a computer.

Nice To Haves

• Advanced expertise in Avalara, including troubleshooting, rules setup, and integration.
• High proficiency with modern corporate card and expense platforms such as Ramp.

Responsibilities

• Manage the full accounts payable lifecycle, including accurate coding, vendor management, and timely payments.
• Manage dedicated customer accounts receivable portals, including billing, collections, and dispute resolution.
• Oversee, review, and post corporate credit card activity; review and approve employee expense reports; and administer the Ramp platform.
• Post weekly banking activity.
• Post monthly corporate payrolls and health insurance allocations.
• Evaluate accounting processes, schedules, and software systems and implement streamlined workflows to improve efficiency.
• Prepare and file state sales tax returns for all FSI and Mission locations.
• Learn the sales tax matrix and help apply and update it as state tax rules change.
• Serve as the contact for Avalara and address sales tax issues resulting from the Avalara-to-NetSuite integration.
• Perform monthly reconciliations for assigned balance sheet accounts, including sales tax, accrued expenses, prepaid expenses, and inventory received not billed.
• Assist management throughout the corporate budgeting process.
• Learn and serve as the primary backup for computing and verifying sales commissions.
• Audit and overhaul existing amortization schedules and provide financial analysis to support leadership decision-making.

Benefits

• Medical, dental, disability, and life insurance coverage.
• Safe harbor 401(k) retirement plan.
• Bonus potential.
• Dynamic and collaborative team environment that encourages continuous learning and development.
• Work-life balance and a family-oriented culture.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior