Administrative Assistant (Part-Time) - 2026/2027 School Year

Founded in 2001, Mastery Schools is a public charter network of 23 K-12 schools in Philadelphia and Camden, serving more than 14,000 students. At Mastery, we’re on a mission to provide all students with the academic and personal skills they need to succeed after graduation and pursue their dreams. Student achievement is not just a goal for our organization; it's the reason we exist, and every member of our team is dedicated to securing student success. We are also committed to pursuing equity, actively disrupting systemic racism, and addressing the disparities that limit our students' choices. Our culture is built on respect, service, and the belief that the success of our students, their families, and the communities we serve will help us achieve our mission. We foster a positive, open, and inclusive environment where honesty, humor, and continuous improvement are celebrated.

About the role

The Administrative Assistant is responsible for supporting the daily operations of the school's reception area, presenting a high-achievement culture to all students, visitors, and parents. This role involves balancing administrative tasks with upholding school standards for students at the front desk.

Responsibilities

• Answering general inquiries, directing and screening phone calls
• Greeting parents and visitors to the school and directing them to the appropriate location
• Creating and maintaining databases such as Excel and the School Computer Network for student records, school equipment inventory, etc.
• Placing orders for departments and tracking the order process for the individual school
• Managing office supplies for the front office
• Overseeing mailing and shipping delivery systems
• Maintaining conference room calendar and scheduling meetings as needed
• Aiding in the student enrollment process, including paperwork completion and follow-up phone calls
• Opening and closing the school front reception facility
• Communicating to students with high expectations for academic achievement and appropriate behavior in and outside the classroom
• Maintaining a positive and welcoming environment for parents, visitors, coworkers, and students
• General administrative duties as assigned

Requirements

• Ability to relate to a diverse population of students and parents
• Advanced proficiency in computer skills, specifically Microsoft Office: Outlook, Word, Excel, and PowerPoint, and ability to learn new programs/software quickly
• Proven experience multitasking, organizing, and prioritizing work
• Ability to handle requests and inquiries and respond within a timely manner
• High attention to detail
• Performs duties with a high degree of professionalism and positive energy

Qualifications

• Three to five years of administrative assistant experience is preferred

Physical Requirements

• Ability to physically perform the duties and work in the environmental conditions required, such as maneuvering in classrooms
• Standing, walking, sitting for long periods of time
• Speaking loudly and clearly, seeing and hearing things both near and far away
• Stooping, kneeling, fine finger and hand manipulation in the use of a computer, chalkboard, dry erase board, or projector
• Must be able to sit for up to two (2) hours looking at a computer monitor, using a keyboard and mouse, and typing

Pay

New administrative assistants start at $18.75 per hour, with Mastery offering up to $23.92 based on experience and education. Hourly rates range from $18.75 to $29.33, with growth opportunities as your career progresses. This role is eligible for a $500 signing bonus.

Schedule

This is a part-time role where you will work a total of 29 hours per week, Monday through Friday.

Benefits

• 403(b) retirement plan for PA employees (with a 5% match from Mastery for full-time employees)
• Enrollment in the State of New Jersey Pension Plan for NJ employees
• Robust Employee Assistance Program
• Mental health and counseling programs
• Annual Professional Development Fund
• Discounts and perks at a myriad of retailers, travel organizations, insurance providers, and more
• Access to the HealthAdvocate Helpdesk to navigate various benefits-related topics