Manager, HR Business Partner

ABOUT 9AMHEALTH 9amHealth is an AI-enabled virtual specialty care platform focused on managing high-cost chronic conditions at scale. The company partners with employers, health plans, and pharmacy benefit managers to deliver comprehensive, cost-effective medical care for individuals living with obesity, diabetes, hypertension, and dyslipidemia. Members receive access to specialized clinicians, including endocrinologists, obesity medicine specialists, and clinical pharmacists, at-home lab testing, prescription medications, and lifestyle support. 9amHealth was founded in 2021 and is backed by leading healthcare investors like Define Ventures, SemperVirens, 7Wire Ventures, and The Cigna Group Ventures. ABOUT THE ROLE Reporting to the VP of People, this role supports leaders and employees across GTM, Product, Engineering, Clinical Care Operations, and G&A during one of the most formative stages of the company's growth. As our Senior People Partner, you'll help build the foundation for how we support managers, employees, and the business as we scale. That means balancing thoughtful business partnership with hands-on execution across employee relations, leave administration, compliance, policy, benefits, and manager support. You'll bring the judgment and pattern recognition that comes from supporting organizations through multiple stages of growth, helping us make sound decisions today while building people practices that can evolve alongside the business. You'll work in close partnership with the Senior People Operations Manager, who owns the systems, workflows, and operational infrastructure behind our People programs. Together, you'll shape both the approach and the execution – partnering to design practical, scalable people practices and bringing them to life through thoughtful processes, systems, and manager enablement. Success in this role means knowing when to introduce structure, when to iterate, and how to build a management culture that helps the business scale without creating unnecessary complexity. You'll help create more confident and capable managers, resolve employee relations matters with clarity and consistency, evolve people programs alongside the business, and establish a People function that becomes a trusted partner in helping leaders make better business decisions. What you’ll do - Help define what great management looks like at 9amHealth by establishing clear expectations, coaching leaders through difficult decisions, and building a culture of accountability, feedback, and high performance. - Coach and support directors and senior managers through team dynamics, organizational change, performance conversations, and other complex people challenges, serving as a trusted advisor before issues escalate. - Design, launch, and continuously evolve core people programs, including performance management, manager enablement, organizational planning, and leadership development, to meet the needs of the business today while laying the foundation for future growth. - Partner with the VP of People and business leaders to shape people strategies that strengthen organizational effectiveness, improve manager capability, and support the company's continued growth. - Own employee relations end-to-end, conducting investigations, advising managers, documenting decisions, and resolving employee concerns with care, consistency, and sound judgment. - Partner closely with the Senior People Operations Manager to design and operationalize people programs, translating strategy into scalable processes, systems, and employee experiences across the full employee lifecycle. - Manage leave of absence cases (FMLA, state leaves, medical, personal) from start to finish, ensuring compliance, clear communication, and a thoughtful employee experience while helping establish scalable practices for the future. - Build, maintain, and continuously evolve the employee handbook, HR policies, and related documentation so they're compliant, practical, a…