Senior Implementation Manager

MEET ASCERTAIN Ascertain is building AI agents to automate the administrative work that burdens care teams. We are in major health systems and large specialty groups, saving hundreds of staff hours every week. Our backers include Northwell Health, New York’s largest health system, and Deerfield Management, a leading healthcare investment firm. Together, we’re on a mission to restore time, trust, and focus to the people who keep healthcare running. Our work is urgent — not because of startup timelines, but because our customers rely on us to drive financial resilience and operational clarity in a system under strain. ABOUT THE JOB As a Senior Implementation and Engagement Manager, you will lead post-sale success and retention efforts for Ascertain’s most important partners. This role is ideal for someone with experience in healthcare technology, SaaS implementation, or healthcare consulting who’s ready to build a high-impact function from the ground up. You will own end-to-end customer success after the initial sale: overseeing pilot delivery, driving change management and adoption, and ensuring long-term retention and expansion. You’ll work directly with care management and revenue cycle teams to make sure our platform integrates smoothly into their daily workflows, delivering real, measurable value. You will manage end-to-end deployments, from initial implementations to ongoi...