Customer Success Manager

National Summer School Initiative, Inc.•New York, NY

2d•$85,000 - $95,000•Remote

About The Position

Founded as a nonprofit organization in 2020, the National Summer School Initiative (NSSI) partners with schools and districts nationwide to accelerate learning and deepen teacher practice through our distinctive summer programming. NSSI programming offers districts a new approach to building teacher capacity and driving academic gains. Our mentor teacher model connects some of the country's most exceptional educators with teachers across the nation, equipping and inspiring them to deliver discourse-rich math and literature lessons that are rigorous, culturally responsive, and deeply engaging. Through intensive pre-service training and dynamic weekly professional development sessions, our summer programming focuses on research-proven instructional practices that accelerate learning. We provide teachers and school leaders with the targeted support and hands-on practice needed to elevate their craft. Our core belief is simple: teachers get better faster by observing the best and practicing. Our comprehensive approach combines daily exposure to excellent curriculum, observation of outstanding mentor teachers, targeted professional development to help teachers across the country improve rapidly and effectively, and exceptional operational support. In 2026, NSSI served approximately 82,000 students. Building from 48,000 students served in 2023, we continue to refine our approach to maximize impact. With a goal of reaching 130,000 students by summer 2029, we are positioned for strategic growth based on our strong track record of results. Students consistently achieve double-digit learning gains on average across all partner sites, while stakeholder satisfaction remains remarkably high. The customer success manager is a key role that lives between our sales and program operations teams. This role’s mission is to make sure new partners are successfully onboarded, supported throughout the customer life cycle, and positioned for strong summer program implementation. This role will report to the senior account executive.

Requirements

Bachelor’s degree, along with at least five years of experience in customer success, project management, business development, or a related partner-facing role.
CRM experience, ideally HubSpot.

Nice To Haves

Experience in K-12 education strongly preferred.

Responsibilities

Serve as the primary contact for assigned districts and schools, building trusted relationships with key leaders.
Monitor account health to address risks and identify renewal and growth opportunities.
Maintain accurate customer, contact, and communication records in HubSpot.
Demonstrate certified product expertise through effective virtual presentations.
Track relevant funding sources and education initiatives in assigned regions.
Lead onboarding for assigned partners, delivering sessions and resources that ensure they are fully prepared for summer programming and equipped with the structures needed for success.
Maintain accurate partner records and share timely information across the organization to support effective program delivery.
Collaborate with Program Operations and Program teams to resolve partner-specific challenges and provide responsive solutions.
Maintain accurate, up-to-date HubSpot records throughout the partner lifecycle.
Analyze program outcomes and impact data to demonstrate partner value and inform renewal discussions.
Coordinate end-of-summer debriefs and incorporate partner feedback and lessons learned into future program and customer success cycles.
Develop scalable impact reporting and renewal systems, templates, and playbooks to reduce manual work as the partner base grows.