Senior Software Engineer (AI)

About the role

We're seeking an experienced AI/ML engineer who is motivated to meaningfully improve the way healthcare is administered in the United States. You'll be responsible for making the core Onos Health AI extraction and evaluation systems accurate, consistent, and trustworthy enough for health plans to depend on. As an early team member, you'll be expected to wear multiple hats and ensure excellent outcomes for our enterprise customers. This role is a hybrid role based in San Francisco, where you'll be expected to work at our office in person 2-3 times a week. What you'll be doing at Onos: Develop LLM/NLU systems to process and extract meaningful information from clinical notes and medical documents, classify patients according to level-of-care guidelines, and make accurate recommendations Own and evolve our LLM evaluation harness, regression gates, and observability to ensure our systems catch accuracy regressions before they reach payers and prove the platform's reliability over time Extract structured data from visually complex clinical documents, including scanned charts, tables, and graphs using a mix of OCR, multimodal models, and classical ML Collaborate with backend engineers to integrate AI/ML capabilities seamlessly into the Onos platform Technical Challenges At Onos: Build and operationalize AI/data pipelines to analyze medical records to streamline clinical assessments and healthcare quality reviews Benchmark and stress-test LLM systems so evidence extraction and level-of-care classification stay accurate and reliable as criteria, documents, and models change Develop and optimize a system that ingests complex medical standards of care documents and evaluates provider adherence to guidelines Design explainable AI solutions that provide transparency into model decisions for healthcare professionals Tech Stack: Infrastructure/Systems: AWS (ECS, Bedrock, Cognito, etc.), Docker, Github Actions Languages/Frameworks: Python, Django, Celery, django-ninja, django-tenants Database/Storage: PostgreSQL (AWS RDS), S3 Development Tools: Github, Jira, CoderabbitAI, Tusk, Claude