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McMahon hires new team members

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McMahon, a full-service, professional engineering and architectural firm, has hired Alex Klarner and Renae Nider as structural designers, Zach Peirce as a mechanical design engineer, Alrik Ristau as a water and wastewater operations specialist, Kirsten Smith as an electrical designer and Jacob Thompson as a municipal and civil engineering technician.

To learn more about McMahon’s projects and open positions, visit

Alex Klarner

Klarner is a recent graduate of Northeast Wisconsin Technical College where he earned an associate degree in architectural technology. Prior to McMahon he worked for a construction company.

Renae Nider

Nider comes to McMahon after working in residential design for a building material supply company. She earned an architectural technology degree from Northeast Wisconsin Technical College in 2022 and has previous degrees in interior design and kitchen and bath design from Fox Valley Technical College.

Zach Peirce

Peirce is a new graduate of Michigan Tech where he earned his bachelor’s degree in mechanical engineering. His role at McMahon will be focusing on plumbing and HVAC engineering. Peirce held two internships for a defense company before joining McMahon.

Alrik Ristau

Ristau has a bachelor’s degree in environmental engineering from the University of Wisconsin-Oshkosh. He has experience operating and managing anaerobic digesters. Ristau will be joining McMahon’s affiliate company, Integrated Public Resources.

Kirsten Smith

Smith graduated from Northeast Wisconsin Technical College with an associate degree in architectural technology in 2022. She was a McMahon intern while pursuing her degree and began her electrical designer role full-time after graduation.

Jacob Thompson

Thompson graduated from University of Wisconsin-Oshkosh with a bachelor’s degree in environmental science. Thompson previously worked for Vilas County, Wisconsin removing invasive species from lakes.


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