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Office Manager

J. F. Ahern Co.
parental leave, 401(k)
United States, Wisconsin, Fond du lac
855 Morris Street (Show on map)
Nov 08, 2025

Looking for a company that values your skills, respects your contributions, and gives you the tools to thrive?

With more than 145 years as a family-owned business, we've built a reputation as one of the best mechanical and fire protection contractors in the country. We pride ourselves on delivering unmatched quality and innovation while providing you with job stability, opportunities for career progression, and support. We have an exciting opportunity for aOffice Manager located in Fond du Lac, WI .

How you will contribute:

As an Office Manager, you will oversee the office environment, manage office tasks and communications, and assist upper management with key functions. You will assist and manage a team of Project Coordinators and work to continually improve administrative processes. Demonstrate your strong attention to detail by preparing month-end financial data to be used by senior leaders to analyze monthly results. Show your team-building skills by organizing employee and customer events. You will also assist in managing the flow of communications between the field, the office, and corporate services and will assist in the coordination with other operation divisions. Management responsibilities include employee training, coaching, development, performance management, hiring, and termination decisions. You will be challenged to excel beyond your expectations in a team-oriented environment.

In addition, you will oversee critical administrative tasks, including managing weekly and monthly project billings, tracking contracts and subcontracts, and coordinating various meetings to drive the smooth execution of contract work. Your leadership will be instrumental in refining workflows, driving operational efficiency, and ensuring your team has the tools, training, and guidance to excel in their roles.

This is a fantastic opportunity for a proactive, solutions-oriented professional with leadership experience in administrative management-ideally within construction or mechanical contracting.

What you need to qualify:

Ahern will help make the most of your associate degree in an administrative program. Three to five years of prior experience in an office management or administrative assistant role is preferred. Being proficient in Microsoft Office and technically inclined to learn industry-specific software will be essential. You can stand out above other candidates by demonstrating the ability to thrive in a fast-paced, deadline-driven work environment. A commitment to providing exceptional customer service, possessing strong written and verbal communication skills, and being able to execute tasks with a great amount of detail will be crucial. Time management, making decisions independently, in-depth problem-solving skills, the ability to provide constructive feedback, and the ability to maintain a high degree of confidentiality will all be essential in this position. If you are ready to demonstrate this expertise, Ahern wants you!

What's in it for you?
At Ahern, we understand that life is more than just work - and we're committed to supporting our employees in every aspect of their lives. Our comprehensive benefits package is designed to give you the flexibility, security, and support you need to thrive - at work and at home.

Here's how we stand out from the rest:



  • Top-Tier Benefits: Our 401(k) match and health benefits rank in the top 20% nationwide
  • Incentives: A significant portion of our profits is shared with employees through bonus programs
  • Generous PTO with the opportunity to buy additional time off
  • Paid Parental Leave: Supporting you at every life stage with paid maternity and paternity leave
  • Mental Health Resources: Free, full-service mental health care for you and your family
  • Wellness Programs: Access on-site fitness centers, personal development funds, and more
  • Professional Growth: Take advantage of education assistance, training programs, and development opportunities to advance your career
  • Work-Life Balance: Enjoy hybrid and flexible schedules to fit your needs



By joining Ahern, you'll gain the stability of a company that's been a leader in the industry since 1880, the pride of doing meaningful work, and the support of a team dedicated to your success. Don't settle for just any job-experience what it's like to work for the best!

Ahern is an Equal Opportunity Employer and is committed to providing a workplace free from discrimination and harassment.


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