Lead Data Scientist

The Challenge Cardiometabolic conditions will impact 80-90% of people throughout their lifetimes, representing the leading cause of death globally and an important risk factor for a variety of neurodegenerative diseases and cancer. Sustainably addressing these diseases requires breakthrough therapeutics, AI/ML innovation, and transformative business models. The Opportunity This is a ground-floor opportunity to shape the future of AI-driven population health management at Onsera Health. Backed by Population Health Partners (PHP)-the proven venture platform behind Metsera (Acquired by Pfizer), Areteia Therapeutics, and Corsera Health-we're building the future of population health. As an AI Engineer, you'll be core to designing and developing patient facing agentic AI systems. You'll work closely with the Clinical and Product teams to operationalize production-grade agentic workflows, design experiments, and rigorously evaluate model performance to ensure impact and safety. You'll build voice based intake workflows, patient engagement systems, clinician-facing tooling and more. Responsibilities - Design and develop patient-facing agentic AI systems, including voice-based intake workflows, patient engagement tools, and clinician-facing applications - Build and deploy production-grade agentic workflows using LLMs, ensuring reliability, safety, and clinical appropriateness - Design experiments and rigorously evaluate model performance across accuracy, latency, safety, and user experience metrics - Partner closely with Clinical, Product, and Engineering teams to translate clinical requirements into robust AI solutions - Communicate technical approaches and findings to both technical and non-technical stakeholders through clear documentation and presentations What we offer - Mission-driven work addressing critical public health and healthcare economics challenges - Ground-floor opportunity to shape a breakthrough healthcare AI solution - Partnership with a world-class, Job Description Senior LLM, RAG & Agentic AI Consulting Engineer - Lead / Senior FDE Remote First, some trips to client offices and HQ Lead the design and delivery of complex, AI-native client engagements, spanning agentic systems, retrieval architectures and semantic...

team of venture capitalists, innovators, technologists, bioscientists, and clinicians from PHP and beyond - A fast-paced, dynamic, and highly collaborative work environment - Competitive salary and benefits package, including participation in our equity program Minimum qualifications - 2+ years of experience in AI/ML engineering, software engineering with ML focus, or a related field (exceptional recent graduates with strong project experience or research welcome) - BS or MS in Computer Science, Machine Learning, Mathematics, or a related quantitative discipline - Strong Python proficiency and hands-on experience building with LLMs (prompt engineering, RAG, function calling, agent frameworks) - Experience with agent orchestration frameworks (e.G., LangGraph) - Strong software engineering fundamentals such as writing clean code, version control, testing - Excellent communication skills and comfort working in fast-paced, cross-functional teams Preferred qualifications

• Experience building voice AI or conversational AI systems - Experience with patient-facing systems - Familiarity with cloud infrastructure (GCP, AWS, or Azure) - Exposure to evaluation and safety tooling for LLM-based systems (guardrails, human-in-the-loop review) About the Venture We are an early-stage health AI company revolutionizing cardiometabolic care and economics. Our unique position within the PHP ecosystem provides: - Venture Track Record: A proven track record of success in incubating innovative biotech and healthcare companies - Deep Capital: Funding runway and resourcing to support deep technological/scientific R&D and to drive growth - Strategic Guidance: Direct access to industry pioneers (including founders of The Medicines Company and Metsera), strategists (McKinsey/QuantumBlack alumni), and world-class scientific talent (e.G., scientific leaders at Oxford University Ellison Institute of Technology) - Expert Network: Established connections across pharma, payers, and providers - Startup Agility: Ownership in the venture, founder mentality, and ground-floor impact PHP Population Health Partners (PHP) is a premier investment firm established in 2020, aimed at transforming health outcomes for large populations. With offices in New York and London, PHP combines financial resources with industry-leading capabilities and technology. The firm's incubation portfolio includes Metsera (NASDAQ: MTSR), Areteia Therapeutics, and Corsera Health. Leadership: Led by industry veterans including Clive Meanwell (The Medicines Company), Chris Cox (The Medicines Company), and Whit Bernard (Metsera), bringing decades of founder experience and operational excellence in biopharma and healthcare. Similar jobs, Extensive hands-on experience of frameworks and libraries: - Proficient inscikit-learn and SciPyfor ML algorithms - Hands-on experience within python withPyTorchand experience in developing enterprise python applications - Skilled in natural language processing tasks...

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