Assistant Principal

Position Type:
Administration/Assistant Principal

Date Posted:
4/15/2026

Location:
St. Mary Immaculate Catholic School, Plainfield
Diocese of Joliet Catholic Schools
2026-2027 Assistant Principal
Full-Time, Benefit Eligible
St. Mary Immaculate School, Plainfield, IL
Position Available: July 2026

Position Purpose
The Assistant Principal is considered a ministerial employee by their role as Administrator. Administrators working in a Catholic School agree to work diligently to support and strengthen the Catholic Church and its value system. By word and example these individuals support all the official religious teachings of the Catholic Church throughout their personal and professional lives. Administrators agree to play a substantial role in conveying the Catholic Church's message and carrying out its mission.


The Assistant Principal is a member of the administrative team and reports directly to the principal. In collaboration with the Principal, the Assistant Principal is expected to create a Catholic culture that not only encourages the active engagement of teachers and students, but that also instills within each child a genuine desire to learn.


Essential Duties & Responsibilities
The Assistant Principal

• Assuming responsibility in the absence of the principal;
• Assuming responsibilities as delegated by the principal;
• Attending meetings in place of the principal;
• Assisting in the preparation of student, teacher, and athletic handbooks;
• Supervising student conduct including discipline and discipline records;
• Participating in the teacher appraisal process;
• Assisting in the review of teacher lesson plans;
• Assisting in the preparation of staff meetings and staff development programs;
• Participating in special education staffing, planning and implementation;
• Arranging for substitute teachers;
• Coordinating volunteer programs;
• Scheduling parent-teacher conferences;
• Assisting in curriculum development and implementation;
• Performs other related tasks as assigned by the principal and/or pastor.

Education & Experience

• Highly recommended and preferred that the Assistant Principal be Catholic, but is not required;
• Holds a master's degree from an accredited institution of higher learning;
• Possession of current Illinois administrative licensure (Illinois Professional Educator License with either a General Administrative (Type 75) or a Principal Endorsement) or is in an accredited program;
• At least three to five years successful teaching preferably in a Catholic school; with knowledge and exposure that is sufficiently broad to provide an understanding of the preschool through grade eight structure;
• Leadership experience preferred.

Annual Salary Range $54,490 - $103,037

• Final salary will be determined by relevant teaching experience and relevant education.

Benefits
We offer a competitive benefits package that includes:

• Medical, Dental, Vision Insurance, Basic Life and AD & D, Long-Term Disability Insurance, Flexible Spending Accounts, Defined Pension Plan funded by Diocese of Joliet, 403(b) retirement plan, paid personal leave days, and paid holidays.
• Voluntary benefits of Short-Term Disability, Critical Illness, Accident, Hospital Indemnity, and Permanent Life Insurance.

Physical abilities that are commonly associated with the performance of this job
While performing the duties of this job, the employee may frequently be required to sit, stand, walk, talk, hear, see, feel with hands, reach with arms, walk up or down multiple flights of stairs, and be physically able to perform duties as assigned, including the ability to lift up to 20-30 pounds if needed.

• Works in standard office and school building environments but also has ability to work outdoors during outdoor student activities.

To Apply for this Position
Complete an online Diocese of Joliet Catholic Schools Office Frontline Applicant Tracking application. Additionally, the following documentation is required to be uploaded/submitted with your online application to be considered further:

• Current Resume
• Official Transcripts
• Educator Licensure: Current Illinois Professional Licensure (PEL) with a Principal Endorsement or PEL with a General Administrative (Type 75) from the State of Illinois or is in an accredited program working toward a Principal Endorsement
• Professional/Clergy References

This may be accessed at the following link:

Applications will be reviewed as they are received. Incomplete or paper applications will not be considered.


We are excited to review your interest in this position!

This document is not intended to be a comprehensive list of work-related functions. All duties and work conditions listed are subject to change at the discretion of the Diocese of Joliet Management. The Diocese of Joliet will, in compliance with the Americans with Disability Act (ADA), accommodate essential job functions whenever feasible.