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School Leadership

Sandy O'Brien

Sandy O'Brien

Hiring Coordinator

Mobile: 414-232-0841


  • Associates Degree - Bethany Lutheran College, Mankato MN
  • Bachelors Degree - University of Wisconsin - Milwaukee
  • Masters Degree - National Louis University, IL
  • Administrative Degree - Concordia University Wisconsin

How did you connect to St. Marcus?

I have been a member at St. Marcus Lutheran Church for 30 years. I served as a teacher in a public school in the Milwaukee area for 25 years. St. Marcus called me to be an administrator in 2009. Since then I have served as Director of Primary Grades, Director of Accreditation, Director of Operations, Director of Student Services, Expansion Director and currently as Human Resource Coordinator.

What do you love about what you do?

I have been blessed to serve the students, their families and the staff at St. Marcus in a variety of ways. When serving as Director of Student Services, I was able to build our Special Education and Counseling services. I love contributing to St. Marcus because of their priorities to bring the Gospel and a quality education to the children of Milwaukee.

If you had a Bible passage/quote for your life and ministry what would it be?

“And we know that in all things God works for the good of those who love him, who have been called according to his purpose.” -Romans 8:28

Tell us about your family…

I’ve been married to Mike O’Brien for 32 years. I have 2 grown step children and 8 grandchildren ranging from 15 to 5 years old.

“When I have free time, you will find me…”

Spending time with my family, especially my grandchildren, playing golf, gardening or reading.

What’s your favorite vacation spot?


What’s one fun fact about you?

I grew up in Chicago and I’m a product of the Chicago Public Schools. Education is my 2nd career. I worked in Banking and International Finance before I got my teaching degree. I’ve been working for over 50 years. So blessed!