Image of Mark Groenenboom

Mark Groenenboom

Senior Mechanical Engineer

I am a Senior Mechanical Engineer that enjoys bringing things of value from an idea to reality.

Check out the device we developed for racing down Mt. Tabor in Portland at the PDX Adult Soap Box Derby here.

BEST THING ABOUT WORKING AT SIGMA:  Good people, and my values align with Sigma’s values.

FIRST JOB: Delivering the Grand Rapids Press on my bike

FAVORITE LEISURE ACTIVITY:  Skiing with my wife and daughters, golfing, and tinkering with skateboards.


FAVORITE MOVIE: The River Why and The Sound of Music.

  • Detroit