Building Support or Building Substitute Teacher

Nimble; St. Louis (MO); On-site; USD 33,000 - 40,000; Full time

Job summary

Momentum Academy is seeking a Building Support or Building Substitute Teacher in St. Louis to provide substitute coverage and targeted instructional support across PK-8 classrooms.

You will help maintain continuity of learning, implement classroom management strategies, and assist with small group interventions and data-informed instruction. The role also includes supporting daily school operations, supervising scholars, and collaborating with staff and families to promote scholar achievement.

Qualifications

• Bachelor’s degree required; Education or related field preferred.
• State teaching certification preferred or in progress.
• 1–3 years of teaching or instructional experience; urban education a plus.

Responsibilities

• Deliver substitute instruction aligned to lesson plans and maintain continuity of learning.
• Provide targeted interventions, small group instruction, and one-on-one support.
• Support classroom teachers and reinforce core concepts to close learning gaps.
• Track student progress and maintain accurate records as required.
• Participate in professional development, meetings, and school events.

Skills

Classroom management

Adaptability

Instructional support

Team collaboration

Technology proficiency

Education

Bachelor's degree

State teaching certification preferred

Tools

Microsoft Office

Educational technology platforms

Job description

Building Support or Building Substitute Teacher

Momentum Academy is a public charter school district with three campuses in St. Louis City, serving scholars in grades PK-8. Momentum promotes academic excellence in an environment of mutual care and support that builds character, confidence, and community among each of our scholars so that they reach their full potential.

Role

The Building Support role serves as a flexible team member primarily responsible for providing high-quality substitute teaching coverage, ensuring continuity of instruction across classrooms. When coverage is not needed, this role supports student learning through targeted interventions, small group instruction, and classroom assistance aligned to school needs. This position is critical to maintaining instructional consistency and supporting scholar achievement across the building.

Essential Responsibilities

Instructional Support, Coverage & Continuity

• Serve as the primary substitute teacher, delivering instruction aligned to lesson plans and maintaining continuity of learning in the absence of the classroom teacher
• Establish a positive, achievement-oriented, and structured learning environment that upholds school-wide expectations for academics and character
• Implement classroom management strategies that are consistent with school systems and expectations
• When not assigned to substitute coverage, provide instructional support including:
• Small group instruction
• Targeted intervention aligned to scholar needs
• One-on-one support
• Support teachers in reinforcing key concepts and addressing learning gaps through data-informed instruction
• Track and support student progress through informal assessments and collaboration with instructional staff as appropriate
• Maintain accurate records as required (attendance, behavior, academic tracking when applicable)
• Reinforce school-wide behavioral expectations and contribute to a strong culture of accountability

Flexible Classroom & School Support

• Serve in classroom assistant capacities when enrollment or scholar needs require additional support
• Support with daily school operations, including arrival, dismissal, transitions, and other assigned duties
• Provide supervision and ensure the safety and well-being of scholars throughout the school day

Professional Responsibilities

• Build strong relationships with scholars, staff, and families
• Actively participate in professional development, team meetings, and school events
• Seek and apply feedback to continuously improve performance and instructional practice
• Support scholar recruitment efforts and school-wide initiatives as needed
• Perform other duties as assigned to support the overall success of the school

Education/Certification Requirements

• Bachelor’s degree required (Education or related field preferred)
• State Teacher Certification preferred (or working toward certification)

Qualifications

• 1–3 years of teaching or instructional experience preferred (urban education experience a plus)
• Strong instructional and classroom management skills
• Ability to adapt quickly and effectively across grade levels and content areas
• Experience supporting diverse learners through differentiated instruction or intervention
• Strong organizational, communication, and collaboration skills
• Proficiency in Microsoft Office and educational technology platforms
• Demonstrated commitment to student achievement and growth

Compensation

Compensation begins at $36,580 and increases based on years of experience and education.