> Markdown version of [/jobs/ext/4481304-staff-software-engineer](https://www.wearedevelopers.com/jobs/ext/4481304-staff-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Staff Software Engineer - **Company:** Circadia Health - **Location:** El Segundo, CA, United States - **Experience:** Experienced - **Salary:** $150,000 - $240,000 - **Contract:** Permanent contract - **Skills:** Amazon Web Services, Python (Programming Language), NoSQL, Open Source Technology, Systems Integration, Test-Driven Development (TDD), ReactJS, Fast Healthcare Interoperability Resources, Fastapi, Pytest, Health Level Seven International - **Published:** October 23, 2026 - **Apply:** https://www.thejobnetwork.com/job/374cab0d-bd8d-4c3a-a7f8-54b20c705cb8/staff-software-engineer ## About the Role * 7+ years shipping production software full-stack * Technical ownership of at least one significant production system * Strong Python, including FastAPI and Pydantic * 3+ years building production React applications * Experience integrating with third-party systems you do not control * Direct experience working with external customers or stakeholders * Practical AWS, containerized deployment, relational and NoSQL databases, and test-driven development with PyTest Preferred * Healthcare integrations: HL7, FHIR, ADT feeds, EHR vendor systems * HIPAA compliance or other regulated software * Prior forward-deployed, solutions, or implementation engineering * Significant open source, systems that outlived your tenure, or a high-bar engineering background