Our Team

While DrJ staff members boast a variety of specialties, experiences, and interests, they share a common passion for innovative engineering, high quality building design, building code expertise, and outstanding customer service. Get to know our team – they look forward to getting to know you!

 

Matt Barrett

Matt Barrett
Staff Engineer
608-310-6718
Contact Matt

Lindsay Braxler*
Administrative Support & Billing Specialist
608-310-6730
Contact Lindsay

Ben Caldwell

Ben Caldwell*
Web Development
608-310-6717
Contact Ben

Mindy Caldwell

Mindy Caldwell*
Marketing
608-310-6729
Contact Mindy

Ryan Dexter, P.E.*
VP of Engineering
608-310-6744
Contact Ryan

Stefan Donica, P.E.
Staff Engineer
608-310-6701
Contact Stefan

John Fredrick

John Fredrick
Business Development
608-310-6734
Contact John

Kirk Grundahl

Kirk Grundahl, P.E.
President
608-310-6715
Contact Kirk

Calvin Hamblet

Calvin Hamblet, E.I.
Staff Engineer
608-310-6711
Contact Calvin

Blain Harpstrite

Blain Harpstrite
Staff Engineer
608-310-6726
Contact Blain

Dan Hawk

Dan Hawk, P.E.
Director of Engineering
608-310-6704
Contact Dan

Adam Heise

Adam Heise
Engineering Technician
608-310-6702
Contact Adam

Eric Helmueller, P.E.
Staff Engineer
608-310-6743
Contact Eric

Andrew Hesselink

Andrew Hesselink
Staff Engineer
608-310-6705
Contact Andrew

Sam Muer, E.I.T.*
Staff Engineer
608-310-6771
Contact Sam

Evie Reinke*
Quality System Manager
608-310-6721
Contact Evie

Briana Staszak

Briana Staszak*
Administrative & Operations Assistant
608-310-6725
Contact Briana

Jim Vogt, P.E.*
VP of Engineering
608-310-6703
Contact Jim

Justin Wainright
Drafting Technician
Contact Justin

Larry Wainright*
VP of Product Certification
608-310-6742
Contact Larry

Jill Zimmerman

Jill Zimmerman*
Operations Management
608-310-6722
Contact Jill

Jake Zylka, P.E.
Staff Engineer
608-310-6735
Contact Jake

*Member of DrJ Certification Team

Interested in Joining Our Team?

Check out the Career Opportunities currently available at DrJ. We are always looking for talented people to join the team and help support the building industry.

Careers