Office Manager - Accounting & HR Operations

Omega Corporation; Battle Creek (MI); On-site; USD 50,000 - 65,000; Full time

Job summary

Omega Corporation, headquartered in Battle Creek, Michigan, seeks an Office Manager to oversee finance, HR, IT coordination, and office administration. You will handle bookkeeping, payroll coordination, HR administration, vendor management, and general support to keep the team productive and culture strong.

The ideal candidate is organized, proactive, and thrives in a hands-on manufacturing environment, reporting to the Integrator with dotted-line support to the Fractional CFO.

Qualifications

• Associate or Bachelor’s degree in Business, Accounting, or related field.
• 3–5+ years of experience in office management, bookkeeping, and/or HR administration.
• Proficiency with Microsoft Office, especially Excel, and HR/IT systems.
• Experience with payroll processing and basic labor regulations.
• Familiarity with EOS is a plus.
• Highly organized with strong attention to detail.
• Collaborative, service-oriented, and able to manage multiple priorities.

Responsibilities

• Perform day-to-day bookkeeping including accounts payable/receivable, invoicing, bank/credit card reconciliations, and general ledger maintenance.
• Prepare the bi-weekly payroll using the Paycor payroll system to ensure accurate, timely payroll processing and compliance.
• Support month-end close processes, prepare routine financial reports, and assist the Fractional CFO with data requests.
• Maintain accurate financial records and assist with compliance and audit readiness.
• Handle HR administrative tasks: onboarding/offboarding, benefits enrollment and administration, employee records, and basic compliance support.
• Assist Leadership Team with recruiting coordination, talent development activities, and maintaining a positive work environment.
• Manage day-to-day relationships with external vendors, ensuring reliable service, security, and issue resolution.
• Support basic technology needs for the team and coordinate improvements with the Fractional CFO.
• Oversee general office operations, supplies, facilities coordination, and logistics.
• Manage details for company events, meals, catering, and team-building activities.
• Provide broad administrative support to the Leadership Team and employees as needed.
• Help maintain EOS tools (scorecards, rocks, meeting rhythms) at the operational level.

Skills

Office management

Bookkeeping

HR administration

Excel

EOS

Education

Business/Accounting degree

Tools

Paycor

MS Office

Job description

About Us:

Omega Corporation is the unified force behind two industry manufacturers: Omega Castings and Omega Tool & Machine. Headquartered in Battle Creek, Michigan, we proudly continue a second-generation legacy of precision manufacturing since 1975. Having passed our 50th anniversary, we remain committed to quality, integrity, and continuous improvement. Operating under the Entrepreneurial Operating System (EOS), our Leadership Team is focused on clear vision, disciplined execution, and sustainable growth. We are vertically integrated, delivering high-quality stainless steel castings through finished precision-machined components for demanding industries.

Position Summary:

The Office Manager is a critical operational role that ensures smooth day-to-day execution across finance, HR, IT coordination, and office administration. Reporting to the Integrator (with dotted-line support to the Fractional CFO), this position handles bookkeeping, transaction-level accounting, payroll coordination, HR administration, vendor management, and general support tasks that keep our team productive and our culture strong. The ideal candidate is organized, proactive, and thrives in a hands-on manufacturing environment.

Key Responsibilities:

Bookkeeping & Financial Operations

• Perform day-to-day bookkeeping, including accounts payable/receivable, invoicing, bank/credit card reconciliations, and general ledger maintenance.
• Prepare the bi-weekly payroll using the third-party payroll system (currently Paycor) to ensure accurate, timely payroll processing and compliance.
• Support month-end close processes, prepare routine financial reports, and assist the Fractional CFO with data requests.
• Maintain accurate financial records and assist with compliance and audit readiness.

Human Resources Administration

• Handle HR administrative tasks: onboarding/offboarding, benefits enrollment and administration, employee records, and basic compliance support.
• Assist the Leadership Team with recruiting coordination, talent development activities, and maintaining a positive work environment.
• Manage day-to-day relationships with external vendors, ensuring reliable service, security, and issue resolution.
• Support basic technology needs for the team and coordinate improvements with the Fractional CFO.

Office & Administrative Support

• Oversee general office operations, supplies, facilities coordination, and logistics.
• Manage details for company events, meals, catering, and team-building activities.
• Provide broad administrative support to the Leadership Team and employees as needed.
• Help maintain EOS tools (scorecards, rocks, meeting rhythms) at the operational level.

Qualifications:

• Associate or Bachelor’s degree in Business, Accounting, or related field preferred.
• 3-5+ years of experience in office management, bookkeeping, and/or HR administration (manufacturing environment a plus).
• Proficiency with Microsoft Office (especially Excel), and general HR/IT systems.
• Familiarity with payroll processing and basic labor regulations.
• Experience with EOS is a plus.
• Highly organized with strong attention to detail and ability to manage multiple priorities.
• Collaborative, supportive, and service-oriented with excellent interpersonal skills.
• Proactive, adaptable, and comfortable in a hands-on, fast-paced setting.
• Technologically comfortable and solutions-focused.
• High integrity and commitment to confidentiality.

Why Join Us?

As Office Manager, you will be the operational backbone of our team—ensuring everything runs smoothly so our people can focus on delivering exceptional quality. You’ll work in a collaborative, growth-oriented environment with meaningful impact on daily operations and company culture as we celebrate our 50th anniversary and build for the future.