Mastery Charter High School

Multi-Campus English as a Second Language (ESL) Teacher - K-12th Grade - 2026/2027 School Year

Mastery Charter High School$60K — $112K *
Education, Government & Non-Profit
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree required with a record of achievement
  • Teacher certification - completed or in process
  • Demonstrated expertise in subject area
  • Experience working with underserved communities
  • Strong commitment to driving student achievement
  • Ability to motivate and challenge students in a standards-driven environment
  • Positive mindset with a focus on personal excellence
  • Resiliency in responding to challenges
  • Outstanding instructional skills based on data-driven methods.

Responsibilities

  • Commit to ongoing professional development
  • Develop rigorous lesson plans and assessments
  • Analyze student assessment data with school leadership
  • Collaborate with grade level teams on best practices and events
  • Engage families in their children's education
  • Demonstrate care for students' success
  • Seek continuous professional growth and receptiveness to feedback.

Benefits

  • 403(b) retirement plan with 5% match for full-time employees
  • Enrollment in the State Pension Plan for eligible employees
  • Robust Employee Assistance Program
  • Mental health and counseling resources
  • Annual Professional Development Fund
  • Employee discounts and perks
  • Access to HealthAdvocate Helpdesk for benefits navigation.
Full Job Description
The Opportunity:

The Multilingual Programs at Mastery Schools are built on the belief that native language skills are a true asset and transfer to secondary language learning. Based on this, students receiving ELD services are taught social & instructional language in tandem with academic language of Language Arts, Math, Science, and Social Studies throughout each stage of English proficiency. ESL teachers work with our multilingual learners to build students' language capacity, gain greater levels of access to the curriculum and bridge students' prior learning and experiences into English-instructed classrooms and school environment.

Mastery values the language and cultural diversity that English Learners bring into our schools. We strive to incorporate the literature and historical perspective of our multilingual learners into the curriculum, school community, and classroom culture.

Whether you are starting your teaching career or are looking to launch a new chapter, your passion and experience will be deeply valued and your opportunities for growth and impact will be limitless. Your natural talents will be fostered and we will provide the training and support to help you be an incredibly effective teacher. As a Mastery team member, you will be trusted to make decisions and held accountable for critical results. You will engage in a positive and professional workplace embedded in a warm, joyful, student-centered, and welcoming school culture.

Duties and Responsibilities:

  • Commit to ongoing professional development in the spirit of continuous improvement
  • Develop rigorous and appropriate lesson plans, assignments, and assessments in cooperation with Mastery school-based leadership and curricular resources developed by Mastery's Central Office Academic Team
  • Work closely with school leaders to analyze student assessment data to measure progress and use data to inform instruction
  • Collaborate in grade level teams to discuss student work, share best practices, plan events for joy and humor, and ensure student mastery of standards
  • Engage families in their children's education by building relationships and maintaining regular communication
  • Demonstrate genuine interest, belief, and care for students' personal and academic success
  • Commit to professional growth, self-reflection, a receptiveness to feedback, and a desire to continuously improve


Education, Experience, and Skills:

  • Bachelor's degree required with a record of personal, professional, and/or academic achievement
  • Teacher certification - completed or in process
  • Demonstrated expertise in subject area
  • Commitment to and experience working with underserved communities
  • Determination to drive student achievement and set high expectations for all students
  • The ability to motivate, support, and challenge students in a student-centered, standards-driven classroom community
  • A positive mindset and a drive for personal excellence
  • Solutions-oriented resiliency to respond positively and effectively to challenges
  • Outstanding instructional skills driven by data and delivered through rigorous and engaging strategies


Physical Requirements:

  • Ability to physically perform the essential duties of the role, and to work in the environmental conditions required, such as: traveling to network campuses; maneuvering in office spaces (including standing, walking, sitting for long periods of time, speaking loudly and clearly, seeing and hearing things both near and far away); stooping, kneeling, reaching file cabinets/shelves; fine finger and hand manipulation in use of computer, chalkboard, dry erase, &/or projectors; filing, faxing, scanning, coping, typing, mailing, and making phone calls; sitting for up to two (2) hours looking at a computer monitor, using a keyboard/mouse, and typing.


Salary and Bonus Information:

  • This role is eligible for a $5,000 bonus as well as up to $5,000 for relocation expenses!
  • New teachers start at $60,900, with Mastery offering up to $83,500 based on experience and education.
  • Salaries range from $60,900 to $112,700, with growth opportunities as your career progresses.


Mastery's Benefits Package:

We offer a full benefits program and opportunities for professional growth. Some of our most popular benefits include our 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, a robust Employee Assistance Program, mental health and counseling programs, an annual Professional Development Fund, and discounts and perks at a myriad of retailers, travel organizations, insurance providers, and so much more, as well as access to the HealthAdvocate Helpdesk to help you navigate various benefits-related topics. Please go here to see all of our Benefits offerings!

Annual Calendar:

As you plan to make Mastery your new work home, please feel free to review our calendar here We like to think our calendar is a benefit of working here too!

Why You Should Apply:

Studies have shown that women and people of color are less likely to apply for jobs unless they believe they can perform every job description task. We are most interested in finding the best candidate for the job, and that candidate may come from a less traditional background. Mastery may consider an equivalent combination of knowledge, skills, education, and experience to meet minimum qualifications. If you are interested in applying, we encourage you to think broadly about your background and skill set for the role.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist Mastery's Talent Acquisition Team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

About Mastery Charter High School

Mastery Charter High School is a network of charter schools in Philadelphia, Pennsylvania. The schools are operated by Mastery Charter Schools, a non-profit organization that was founded in 2001. The schools serve students in grades K-12 and focus on providing a high-quality education to students in underserved communities. The schools have a strong track record of academic success, with high graduation rates and college acceptance rates. The schools also offer a variety of extracurricular activities, including sports, music, and theater programs.
Learn more about Mastery Charter High School
Size
500 employees
Industry
Founded
2001

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