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

Will Bowman

Will Bowman*
Staff Engineer
608-310-6705
Contact Will

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

Andrew Felkins

Andrew Felkins
Project Management & Technical Sales Support
608-310-6716
Contact Andrew

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

Kai Olson

Kai Olson*
Staff Engineer
651-900-9260
Contact Kai

Darren Promer

Darren Promer*
Staff Engineer
608-310-6728
Contact Darren

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

Briana Staszak

Briana Staszak*
Operations Manager
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

Ashley Widmer

Ashley Widmer*
Operations Assistant
608-310-6772
Contact Ashley

Mike Yee

Mike Yee*
Staff Engineer
608-310-6752
Contact Mike

Jill Zimmerman

Jill Zimmerman*
Director of Operations
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