Data/AI Scientist II

About Waymark Waymark is a team of healthcare providers, technologists, and builders whose mission is to bring the best healthcare to people with Medicaid benefits. Guided by the communities we serve, we bring support and technology-enabled care to help primary care providers keep Medicaid patients healthy. We are building the tools and designing an approach to enable care to reach the patients who can benefit most. Our core values embody the essence of what makes Waymark a unique team today, and what we look for, nurture, and sustain as a team. We are bold builders, believing that the greatest challenges in care delivery can be solved when we harness the power of community and technology. We are humble learners, seeking feedback and perspectives different from our own, and welcome challenges to our conclusions. We experiment to improve, actively seeking data to inform decisions and to assess our own performance. We act with focused urgency, our commitment to our mission drives us to tirelessly pursue results. If this vision resonates with you, we hope you consider bringing your creativity, your energy, your curiosity to Waymark. About this role At Waymark, our data science work is grounded in a specific and meaningful challenge: using claims, EHR, and care worker data to help community health workers, social workers, pharmacists, and care coordinators deliver better care to Medicaid patients. As a Data Scientist you will contribute to building the models and tools that these care teams rely on — risk models, care gap prediction, and ML/AI applications including LLM-based tools that translate raw clinical data into actionable guidance. You will work closely with senior data scientists and engineers to learn how ideas move from prototype to production, and will be expected to take on increasing ownership as you develop in the role. This is a position for someone who is technically strong, eager to learn healthcare data, and motivated by the idea that their work will directly affect the care of low-income patients. Responsibilities Build and validate ML and AI models on claims and EHR data for care delivery use cases including risk stratification and care gap identification, under guidance of senior data scientists Support the development of LLM-based tools and AI applications for care team workflows Develop and maintain Python code for data processing, model development, and ML pipelines, following software engineering best practices including version control, code review, and testing Collaborate with engineering, product, and analytics teams to understand requirements and translate them to technical solutions Develop Healthcare Subject Matter Expertise: Show a strong interest in healthcare data structures, quantitative methods, and data science applications in healthcare Minimum Qualifications: A Master’s degree in Data Science, Computer Science, Statistics, or a related field. Python Proficiency: 3+ years of hands-on Python experience including academic and project work — demonstrated through a GitHub portfolio or equivalent Solid foundations in statistical and machine learning methods, including classical ML and an understanding of modern AI and LLM applications Strong SQL skills and comfort working with large, messy real-world datasets Experience working with Git and collaborating in a team codebase Strong communication skills and ability to work closely with cross-functional stakeholders Preferred Qualifications: 1-2 years of industry data science experience Exposure to healthcare data (claims or EHR) through coursework, research, or work experience Familiarity with ML experimentation practices — experiment tracking, model validation, reproducible workflows Genuine curiosity about healthcare and its intersection with technology Hiring Range US Employees in San Francisco/Bay Area, New York City - $123,000 - $164,000 US Employees in Boston, Los Angeles, Seattle, Washington DC - $113,000 - $151,000 US Employees in Arlington,…