Our Staff and Board

Sachin Pandya

Principal

Sachin brings over twenty years of experience including project‑based, real‑world learning and is genuinely thrilled by the chance to help WSTEM grow into its next chapter. He’s excited to join this community and collaborate with families, staff, and students to build something truly special.

Michelle brings a decade of charter school experience across operations, finance, and student support, and is excited to help WSTEM run smoothly as we grow. She loves walking her dog, traveling, and watching Hallmark Christmas movies with her family.
michelle.raynier@wstem.org

Michelle Raynier

Business Operations Manager

Deb has 20 years of experience in early education and is excited to welcome students and support daily school life in the front office. She enjoys time with her adult children, being on the lake, and gathering with family and friends.

Deb Stollenwerk

Administrative Assistant

Mary brings 25 years of early childhood experience and loves creating classrooms full of wonder, inquiry, and joyful learning. She enjoys sewing, boating, reading, and spending time with her family.

Mary Anderson

4K Teacher

Maddie has taught K/1 at WSTEM for nine years and loves sparking curiosity through hands-on exploration and creativity. Outside school, she enjoys time with her husband, two young daughters, and their Goldendoodle.

Maddie Burt

5K/1st Grade Teacher (Returning)

Hannah is all about building warm, engaging classrooms where students feel supported and excited to learn. She loves running, playing sports, spending time in nature, and traveling.

Hannah Gronowski

5K/1st Grade Teacher (Returning)

Maggie has been part of WSTEM since 2009 and brings a deep love for STEM learning and curiosity‑driven exploration. She enjoys spending time outdoors with her husband and three boys.

Maggie Barian

2nd/3rd Grade Lead Teacher (Returning)

Stevie brings over a decade of teaching experience and loves creating authentic learning experiences where students can grow and collaborate. She enjoys reading, gardening, running, yoga, and crafting.

Stevie Ehrenberg

2nd/3rd Grade Teacher (Returning)

Briana has a strong background in STEM and arts‑integrated programming and is passionate about building inclusive, creative, inquiry‑driven classrooms. She enjoys practicing instruments, singing in choirs, reading, and staying active.

Briana Medina

4th/5th Grade Teacher

Chris brings 19 years of experience and a long history with WSTEM, creating classrooms rooted in curiosity, questions, and meaningful relationships. He loves coaching track, cheering on his kids, and spending time outdoors.

Chris Sellers

4th/5th Grade Lead Teacher (Returning)

Beth brings 11 years of project‑based STEM teaching experience and loves helping students connect learning to the world around them. She enjoys hiking, biking, gardening, camping, skiing, and crafting.

Beth Mazurek

6th Grade / Middle School Lead Teacher

Brenda has nearly 30 years of special education experience and is passionate about building an inclusive program where every child can thrive. She’s also a competitive powerlifter and loves hiking, paddleboarding, kayaking, and traveling.

Brenda Seekins

Special Education Coordinator & Teacher

Ben brings creativity, energy, and a love for movement to everything he does and is excited to help students build lifelong healthy habits. He enjoys running, hiking, climbing, and skiing.

Ben Cady

Physical Education & Movement Innovation Teacher

Caryn is a RISD‑trained artist and educator who loves helping students design meaningful, hands‑on creative projects. She enjoys hiking, museums, painting outdoors, creating children’s books, and spending time with her rabbits.

Caryn Blum

Art & Innovation Design Teacher

Lisa brings extensive experience in orchestra, band, and general music and is passionate about connecting music with STEM through innovative, real‑world experiences. She plays in jazz bands and loves traveling with her husband and daughters.

Lisa Werner

Music Teacher

Jess brings over 30 years of experience in helping professions and is dedicated to supporting students’ social‑emotional well‑being through connection, respect, and collaboration. She believes every child thrives when they feel safe, valued, and supported.

Jessica Lovely

Social Worker

Wauwatosa STEM Governance Council

President: Libby Woodward
Vice President: Joey Barian
Treasurer: Ryan Rudnitzki
Secretary: Megan Guzman

Governance Council Board Members:
Brandon Harnack
Emily Welchman
Jessica Haywood
Kristen Irgens
Sean Stavast
Shawn Sissell
Tamara Layne
Tassany Prasoeuthsy
Andres Romero Siller