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Onos Health Logo

Principal Software Engineer (Backend)

Onos Health

Salary not specified
Sep 29, 2025
San Francisco, CA, US
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Onos Health is addressing the 30% of total U.S. healthcare spending wasted due to ineffective care and administrative burden caused by misalignment between providers and payers by building an AI-driven healthcare data platform.

Requirements

  • 5+ years experience building robust and well-architected software applications
  • Expertise with data engineering and backend web development practices
  • Significant experience working with healthcare data and with HIPAA best practices
  • Worked with machine learning and large language models for end-user applications
  • Built and managed teams of engineers on major software projects
  • Python, Django, Django Ninja, Celery / Celery Beat
  • PostgreSQL (AWS RDS), S3

Responsibilities

  • Architecting and implementing major platform components to provide actionable insights and recommendations to health plan administrators
  • Develop robust integrations with health care systems and build scalable data pipelines for health records, provider directories, and claims processing
  • Work closely with ML/LLM engineers to build and optimize models for behavioral and mental health
  • Establish engineering best practices and technical foundations for future team growth
  • Shape our technical roadmap, make key architectural decisions, and influence the company's product strategy
  • Develop an intelligent engine that ingests complex medical standards of care documents and evaluates provider adherence to guidelines
  • Design and implement sophisticated anomaly detection systems to identify fraudulent or abusive providers

Other

  • Customer obsessed and motivated to make an impact in the healthcare space
  • A hands-on leader and collaborative team player with an attention to the details
  • Hybrid role based in San Francisco, where you'll be expected to work at our office in person at least once a week.
  • Unlimited vacation policy
  • Significant equity as an early employee