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Network Administrator

J. F. Ahern Co.
parental leave, 401(k)
United States, Wisconsin, Fond du lac
855 Morris Street (Show on map)
Apr 07, 2026

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 aNetwork Administrator located in Fond du Lac, WI .

How you will contribute:

This is a great opportunity to join an innovative and growing IT team to provide front line support for Ahern network systems. This includes the development and maintenance of systems, security and network configurations, troubleshooting and end-user technical support. Additional responsibilities include ensuring the availability of client/server applications, configuring all new implementations, and developing processes and procedures for ongoing management of the server environment. You will have the opportunity to work across all levels of the organization and grow from within.

What you need to qualify:

Ahern will help make the most of your three plus years of network administration experience or combined related degree and internship equivalent. Successful candidates will have experience/ knowledge administering Microsoft Entra, Active Directory, Office 365, and Windows Server OS. Experience supporting Microsoft Teams, VMware and any other communications-related equipment is a plus. You can stand out above other candidates by demonstrating the ability to thrive in a fast-paced, deadline driven work environment. Being a self-starter and possessing the ability to work independently will be essential. If you are ready to demonstrate your 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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