Principal MuellerPrincipal

David Mueller

Mr. Mueller was born and raised in the Fox Valley and spent most of his schooling in Oshkosh. After graduating from UW Oshkosh, he worked as a teacher for four years at Winnebago Health Institute’s Waterwood School (WMHI), Oshkosh, an alternative K-12 education setting for students with significant mental and behavioral problems, teaching high school students struggling with drug addiction and suicidal ideation.

After that, he was a Special Education teacher for four years in Appleton at Janet Berry Elementary. Mr. Mueller has been an administrator for 11 years - for three years, he was the Education Director at Winnebago Mental Health Institute; after that, he was the Associate Principal at Appleton North High School and the Principal of the Appleton Career Academy for seven years, a charter school that focuses on 21st skill development in the areas of health, design, and businesses/marketing.

This is Mr. Mueller's fifth year as the Principal of Einstein Middle School and he loves every minute of his job. He enjoys spending time with his family and is amazed at how fast they grow and learn. Their family hobbies include boating, fishing, traveling, and all types of sports. He currently resides in the Fox Valley with his wife Jennifer and two children, Alex who is ten and Ava who is twelve.

Associate Principal BernhardtAssociate Principal

Joseph Bernhardt

Mr. Bernhardt was born and raised in Kenosha, Wisconsin.  He graduated from UW-Whitewater with a Bachelor’s of Science in Education, certified to teach Elementary/Middle (1-8) with a minor in mathematics (1-9).  Mr. Bernhardt then attended Marian University and received a Masters of Arts in Education: Educational Leadership.

 Mr. Bernhardt began his teaching career at Oak Creek High School teaching algebra and general math.  He then taught sixth grade for two years at Lincoln Elementary School in the School District of Cudahy.  Following a move from Milwaukee to Appleton, Mr. Bernhardt spent eight years teaching 6th and 8th grade math and science followed by three years as the Instructional Support Specialist (Dean of Students) at Seymour Middle School.  He began his role as the Associate Principal at Einstein in August 2013.

 In his free time, he enjoys running and working out in the martial arts.  He and his family enjoy spending time up north together, boating on the lake and relaxing!  Mr. Bernhardt has coached both of his sons’ baseball teams since they were in t-ball and looks forward to many more years of coaching as they grow.  He lives in Grand Chute with his wife Molly and sons, Alex and Mason.