Title: Extended Childcare Assistant
Department/Location: Preschool and Lower School, St. Louis
Position Type: Part-time. This is an hourly position (August – May). Hours vary throughout the year
Organizational Relationships: Reports to the Extended Care Program Manager
In this role, you will support the Extended Care Program Manager in providing a safe, engaging, and nurturing environment for Pre-K through 5th grade students in the after-school childcare program. You’ll assist with supervising children, leading age-appropriate activities and maintaining a positive atmosphere that aligns with Principia’s values; help with daily routines such as snack distribution, attendance tracking, clean-up, and communicating with parents as directed; and ensure that all students are supervised at all times and that safety procedures are followed.
At our award-winning Early Childhood through grade 12 Principia School in St. Louis, Missouri, and top-ranked Principia College in Elsah, Illinois, Principia faculty and staff make up a close-knit community of educators, coaches, and professionals taking a distinct approach to education—blending academic excellence with Christian Science-based character education. Principia’s team of over 500 employees supports not only Principia School and Principia College, but also a worldwide network of alumni and friends.
At Principia School, our core value is LOVE. Love and its attributes underpin our foundational beliefs as well as our educational approach. We focus on developing the whole child—intellectually, physically, mentally, socially, and spiritually, preparing students for the next steps in life. We foster a challenging yet supportive environment where character unfolds naturally, and talent is cultivated through boundless opportunities. Character education plays an essential role in every aspect of the student experience, and classroom work is augmented by character trips, leadership development, and real-world, hands-on, project-based learning.
We offer a competitive starting salary range for this position: $18.00 - $20.00 hourly, commensurate with experience and qualifications.
Principia, a mission-driven institution, believes every person has the right to an equitable and respectful educational environment and workplace. Principia does not discriminate on the basis of race, color, national origin, ethnicity, gender (identity or expression), sexual orientation, family status, disability, age, or military or veteran status.
In hiring, admissions, and related decisions, Principia—as an institution with a religious mission—gives preference, where appropriate, to Christian Scientists.

At Principia, we take a different approach to education—blending academic excellence with Christian Science-based character education. Along with our School and College, we provide programs for families with infants and a variety of opportunities for lifelong learning, all grounded in our mission. Learn more about our history: https://youtu.be/e6mWj25_wRc