Nearly 90% of our Interns rate their experience with us as well above average and 80% of our Interns accept full-time roles after graduation. Why? Because at Ahern, Internships aren’t about making coffee or running errands - they’re about building your future with hands-on experience.
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 and support. We have an exciting opportunity for a Fire Alarm Design Intern located in Chicago, IL
How you will contribute:
This is a great opportunity to use your education while playing a key role in various fire suppression system projects. As an Intern, you will exercise your attention to detail while designing the layout of fire alarm systems and special hazards fire protection systems using AutoCAD-based software. Additional responsibilities include computer-generated hydraulic calculations, submittal drawings to obtain required building permits, 3D BIM coordination using NavisWorks, project scheduling, on-site field surveys, material stock listing for pre-fabrication, installation drawings, and preparing close-out and project operation and maintenance documents.
What you need to qualify:
Prior experience working in AutoCAD and strong math and analytical skills is preferred. Candidates should be in good academic standing. Knowledge of the construction industry is helpful.
What's in it for you?
As an Intern, you are empowered with genuine hands-on work experience, allowing you to make a meaningful impact and contribute to Ahern’s success.
Why complete your Internship at Ahern?
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.

Ahern is a mechanical and fire protection contractor specializing in HVAC, Plumbing, Building Controls, Sprinkler, Extinguisher & Alarm and Fabrication for construction and service projects. Founded in 1880, the company has over 1,700 employees servicing commercial and industrial customers across the United States. We partner on new construction or retrofit projects, service existing facilities, and provide prefabricated systems while reducing client risk on projects of all sizes.
Ahern's Core Purpose:
To create and maintain systems that save lives, improve the environment, and ensure personal comfort and well-being.
For additional Company information, please visit jfahern.com.
For information on starting a career with us, please visit aherncareers.com.
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