Administrative Assistant; Bilingual

About Mastery

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. We are committed to student achievement, equity, and continuous improvement.

The Administrative Assistant supports the daily operations of the school reception area, presenting a high‑achievement culture to students, visitors, and parents. Responsibilities include answering phones, sorting mail, updating databases, and performing general administrative duties as needed.

• Answer general inquiries, direct and screen phone calls
• Greeting parents and visitors and directing them to the appropriate location
• Create and maintain databases such as Excel and the School Computer Network for student records and school equipment inventory
• Place orders for departments and track the order process for the school
• Manage office supplies for the front office
• Oversee mailing and shipping delivery systems
• Maintain conference room calendar and schedule meetings as needed
• Aid in student enrollment processes by completing paperwork and following up with phone calls
• Open and close the school front reception facility
• Communicate to students expectations for academic achievement and appropriate behavior inside and outside the classroom
• Maintain a positive and welcoming environment for parents, visitors, coworkers, and students
• Perform general administrative duties as assigned

• Ability to relate to a diverse population of students and parents
• Advanced proficiency in Microsoft Office (Outlook, Word, Excel, PowerPoint) and ability to learn new programs/software quickly
• Proven experience in multi‑tasking, organizing, and prioritizing work
• Ability to handle requests and inquiries and respond in a timely manner
• High attention to detail
• Performs duties with a high degree of professionalism and positive energy
• Spanish and English fluency required

• Three to five years of administrative assistant experience preferred

• Eligible for a $500 signing bonus
• New administrative assistants start at $18.75, with a range up to $23.92 based on experience and education; hourly rates range from $18.75 to $29.33 with growth opportunities
• Part‑time role: 29 hours per week, Monday‑Friday

We offer a full benefits program and opportunities for professional growth. Benefits include a 403(b) retirement plan for PA employees (5% match from Mastery for full‑time employees), access to the New Jersey State Pension Plan for NJ employees, a robust Employee Assistance Program, mental health and counseling programs, an annual Professional Development Fund, discounts at various retailers, travel organizations, and insurance providers, and the Health Advocate Helpdesk to navigate benefits topics.

Review our annual calendar for important dates and events.

We value diverse backgrounds and encourage applicants from non‑traditional paths. If you are interested, we invite you to consider how your skills and experiences align with this role.