Senior Billing Specialist

AmperosAmperos is healthcare's first AI-native denial management and revenue recovery platform. Our agentic AI works claims end-to-end, from portal follow-ups and payor calls to appeals and medical records, so providers can resolve more denials, recover more revenue, and focus on what matters most: serving patients.We just closed a $16M Series A led by Bessemer Venture Partners, with continued participation from Uncork Capital and Neo. We're still small, still early, and going after a $260B+ problem that's only getting worse. If you want to work on hard problems that matter, alongside people who care deeply about the mission (and each other), we'd love to meet you.About the RoleWe're looking for a Senior Billing Specialist to join our client onboarding team — a small group of experienced billers who deploy to new client go-lives, stabilize the engagement, and build the operational playbook that the permanent team inherits.This is not a traditional billing seat. You'll rotate across clients, specialties, and payer environments. You'll be the first person to work claims in a new client's system, the one who documents what works and what doesn't, and the voice on client calls during the most critical phase of every engagement. You'll pressure-test our AI tooling against real claims and feed specifics back to engineering — not vague feedback, but actionable detail that shapes the product. The role demands deep RCM knowledge, fast adaptation to unfamiliar systems, and a bias for action.What You'll DoDeploy to new client go-lives and work claims end-to-end in the client's PMS and the Amperos workqueue from day oneParticipate in client onboarding calls and provide claim-level feedback on workflows and toolingBridge the production gap while permanent associates ramp to full capacityWork across multiple practice management systems and payer portals with minimal ramp timeIdentify gaps in client-provided SOPs and escalate with specific recommendationsExecute claim follow-up, denial resolution, appeals, and payer calls per client-specific SOPsDocument every workflow, exception, and payer-specific nuance — these become the SOPs and training materials for the permanent teamPressure-test Amperos's AI agents against real claims and surface product issues to engineering with enough detail to act on immediatelyConduct QA reviews of permanent BA work during the transition and flag quality gaps before the team exits the engagementWhat We're Looking For5+ years of hands-on experience in insurance eligibility and verification, medical billing, AR follow-up, and denial managementDirect experience working in a hospital system or physician practice — you've worked claims from inside a provider environmentDeep working knowledge of payer portals, clearinghouse workflows, and at least two practice management systemsDemonstrated expertise in denial resolution across multiple categories: authorization, medical necessity, timely filing, COB, codingExperience with appeals processes including writing appeal letters and compiling supporting documentationPerks & BenefitsIn-person culture at our Flatiron office in NYC with paid lunch and dinnerFlexible hours and time offGym stipendCommuter benefitsHealth, dental, vision insurance401(k) with matching contributionAnnual offsiteOur ValuesLead with Empathy - Great products and teams are built on empathy—whether for our customers, users, or team members. We take the time to walk in others' shoes, listen actively, and truly understand their challenges, needs, and perspectives.Humbly Ambitious - We combine humility with ambition. No task is beneath us, and no challenge too big. Greatness comes from being willing to do whatever it takes, while having the courage to take bold risks and learn from failures.Radical Agency - Own your domain. Drive initiatives with autonomy and accountability. Think deeply, communicate with the team, and maintain a bias for action.