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Onos HealthOnos HealthSan Francisco, CA

Lead Engineer (Backend)

Leads backend development of AI-driven healthcare platform, architecting ML workflows for claims processing and care optimization. Owns end-to-end features, establishes best practices, and guides technical strategy with 5+ years experience and team leadership.

200k – 250k/yr
Hybrid5+ YOEBackend Engineering

About the role

Responsibilities

  • Architect workflows that utilize AI/ML to process claims, medical records and other data types to evaluate the optimal care path for health plan members
  • Lead the integration and rollout of the Onos platform for new enterprise customers to provide actionable insights and recommendations to health plan administrators
  • Own end-to-end development of new features and functionality for the Onos platform, including requirements gathering, scoping, architecting, implementation and testing
  • 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 and technical strategy

Technical Challenges

  • Develop an intelligent engine that ingests complex medical standards of care documents and evaluates provider adherence to guidelines
  • Design and implement robust and extensible systems to easily support many different kinds of enterprise workflows and integrations
  • Build AI/ML pipelines to analyze handwritten clinical notes, accurately extract important medical information, and automate recommendations for clinical reviewers
  • Scale our systems to process millions of healthcare records while maintaining strict security and compliance requirements

Tech Stack

Infrastructure/Systems: AWS (ECS, Bedrock, Glue, etc.), Docker, Github Actions, Terraform
Backend: Python, Django, Celery / Celery Beat, django-ninja, django-tenants
Frontend: NextJS, Typescript, Tanstack Query, Shadcn UI, Zod, Nuqs
Database/Storage: PostgreSQL (AWS RDS), S3, Clickhouse
Development Tools: Github, Jira, Claude Code, CoderabbitAI, Tusk

Requirements

  • 5+ years experience building software applications
  • Prior experience leading engineering teams as a tech lead or engineering manager
  • Strong product sense and system design skills with a track record of defining clear requirements, test scenarios, and acceptance criteria for complex systems
  • Customer obsessed and motivated to make an impact in the healthcare space
  • A hands-on technical leader who can architect robust and extensible systems, establish best practices with AI coding tools, and ship high quality production code

Nice-to-Haves

  • Worked with machine learning and large language models for end-user applications
  • Hands-on experience navigating healthcare data formats such as EDI X12, HL7, FHIR, and custom payer flat files

Benefits

  • Flexible hybrid arrangement: 2-3 days/week at San Francisco office (Financial District), remote-first culture
  • Unlimited vacation policy
  • Paid parental leave
  • Medical, dental, and vision insurance
  • Pre-tax commuter benefits
  • 401(k)
  • Significant equity as an early employee
  • Direct mentorship from experienced founders
  • Ground-floor opportunity to help build a team and culture
  • Regular team events and offsites
  • Company-provided equipment and home office setup

Skills

PythonDjangoAWSPostgresDockerTerraformCeleryNext.jsTypeScriptMachine Learning
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