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Career Opportunities

Thank you for your interest in a position at Blessed Trinity Catholic High School.  Preference is given to Catholic applicants and priority to those applicants who possess a valid Georgia teacher certificate or who are certifiable in Georgia. Blessed Trinity is located on 68 acres in a northern suburb of Atlanta and features a comprehensive college preparatory curriculum. Blessed Trinity offers a drug-free environment and is in full compliance with federal statutes for non-discrimination in its employment practices.

Substitute Teachers

Blessed Trinity Catholic High School is seeking additional substitute teachers for the 2025-2026 school year. Candidates interested for consideration must send a resume to Cathy Lancaster, Principal, at resumes@btcatholic.org. Substitute training is required by the Archdiocese of Atlanta, Office of Catholic Schools.

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Business Manager
Business Manager

12-Month Position / Benefits Eligible

Blessed Trinity Catholic High School in Roswell, seeks a full-time Business Manager to oversee financial, accounting payroll and business operations in support of the school’s mission and philosophy. 

 

Preferred Job Qualifications:

  • Minimum of a Bachelor's degree in Accounting required
  • Accounting experience in a non-profit preferred
  • Blackbaud experience
  • Strong organizational skills and attention to detail
  • Commitment to Catholic Education

Responsibilities include:

  • Student billing and collections
  • Financial Aid review using FACTS
  • AP, payroll, and general ledger processing/oversight
  • Bank and balance sheet reconciliations
  • Monthly financial statements
  • Budget preparation and monitoring
  • Audit support
  • Database management
  • Manage SAGE dining relationships
  • Collaboration with administrators, faculty, staff, parents, and the Chancery


Interested and qualified candidates should email a resume and cover letter to Cathy Lancaster, Principal, at resumes@btcatholic.org.

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English Teacher
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English Teacher

Full-time Teacher
This position will begin on July 1, 2026

Preferred Job Qualifications:

  • Experience teaching high school
  • Bachelor’s degree in English or English Education with Georgia Teaching Certification, preference will be given to those candidates with a Master's degree

Additional Responsibilities

  • Contribute to the school community in other ways such as coaching sports and sponsoring clubs.

Interested and qualified candidates should email a resume to Cathy Lancaster, Principal, at resumes@btcatholic.org.

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Social Studies Teacher
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Social Studies Teacher

Blessed Trinity Catholic High School is accepting applications for full-time teaching positions in the Social Studies Department for the 2026-2027 school year.  

EDUCATION AND EXPERIENCE

  • A minimum of a bachelor’s degree in Social Science education is required.
  • a master’s degree in Social Science Education is preferred.
  • Teaching  experience of 3+ years is preferred.
  • Teaching experience and/or coursework in the following subjects preferred:
    • AP United States History 
    • AP African American Studies
    • United States History  
    • World History 

Please send a letter of interest and resume to Ms. Cathy Lancaster, Principal, at resumes@btcatholic.org.

Current Coaching Openings
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Current Coaching Openings

Blessed Trinity Catholic High School has the following coaching positions available. A certified teacher must fill head coaching positions. 

  • Head Boys Lacrosse
  • Head Girls Lacrosse
  • Wrestling
  • Football
  • Basketball

Please send a letter of interest and resume to Ms. Cathy Lancaster, Principal, at resumes@btcatholic.org.

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Administrative Assistant - Advancement Office
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Administrative Assistant - Advancement Office

Blessed Trinity Catholic High School seeks a mission-driven, detail-oriented Part-Time Administrative Assistant to support the Advancement Office for the 2026–2027 school year. This position works closely with the Director of Advancement to advance the school’s mission through strategic fundraising initiatives, including the annual fund, special events, and donor engagement efforts.

Key Responsibilities:

  • Maintain and manage donor records in Blackbaud Raiser’s Edge with a high level of accuracy and confidentiality
  • Generate reports and provide data analysis to support fundraising strategy and decision-making
  • Manages all gift processing, acknowledgments, and donor stewardship communications
  • Support planning and execution of advancement events and campaigns
  • Provide general administrative support to ensure efficient daily operations of the Advancement Office

Qualifications:

  • Proficiency in Blackbaud Raiser’s Edge and Google Workspace required
  • Excellent written and verbal communication skills
  • Strong organizational, interpersonal, and customer-service skills
  • Exceptional attention to detail with the ability to manage multiple priorities
  • Proven time-management and problem-solving abilities

The ideal candidate is a collaborative team player who is passionate about supporting Catholic education and contributing to a culture of philanthropy.

To Apply:
Please submit a resume and cover letter to Katy Cowan, Director of Advancement, at resumes@btcatholic.org.

 

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