Title:  Senior HVAC Mechanical Engineer

Looking for a company who 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 a Senior HVAC Mechanical Engineer located in Milwaukee, WI.

How you will contribute: 

As a Senior Engineer, you will prepare detailed designs for HVAC, steam, and industrial process piping projects. You will perform HVAC and piping system load calculation, equipment selection, ductwork and pipe sizing, control sequence creation, and specification development. You will also provide information to our estimating team relative to bid packages and provide engineering input into the operation plans for system commissioning and start-up. You will play a lead role in customer interactions and site visits to understand building usage and internal processes, enabling you to create systems which meet the needs of each facility. On projects you design, you will create all documents for submission and permitting, and interact with field teams to ensure your designs are installed and commissioned successfully. As a Senior HVAC Engineer, you will work with chilled water cooling, DX cooling, hot water heating, low and high pressure steam, condenser water, commercial & industrial ventilation, and exhaust systems. Exercise your ability to multi-task as you manage a workload of typically 3 concurrent projects and occasionally provide assistance to Ahern’s multiple regional offices.

What you need to qualify:

Candidates must have a Bachelor’s Degree in Mechanical Engineering, combined with 4+ years of experience in HVAC systems, and the ability to thrive in a fast paced work environment. A Wisconsin professional engineer’s license and proficiency in AutoCAD, Revit MEP, and load calculation software are preferred. Candidates should have a strong understanding of the mechanical codes and industry standards.

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 Affirmative Action / Equal Opportunity Employer and encourages veterans, women, minorities, and disabled individuals to apply.