Senior Software Engineer
Circadia Health
Software Engineering
Los Angeles, CA, USA
USD 150k-225k / year + Equity
About Circadia Health
Circadia Health is a growth-stage healthcare AI company on a mission to prevent avoidable hospitalizations and transform senior-care operations. Our Circadia Intelligence Platform combines:
Contactless sensing that monitors respiration and motion with medical-grade accuracy
Native predictive models that detect 85% of preventable adverse events several days in advance
Enterprise integrations that operationalize predictions directly inside EHR, care-coordination, billing, and compliance workflows
Today, our technology touches 40,000+ post-acute patients daily across skilled-nursing, home-health, and home-care networks. We are backed by leading healthcare and AI investors and headquartered in El Segundo, CA.
The Role
What You'll Do
- Build, develop, and maintain responsive, interactive user interfaces using modern JavaScript frameworks (React, Vue.js, Angular).
- Implement state management and develop reusable UI components for seamless integration with backend services.
- Optimize frontend performance using techniques like lazy loading, code splitting, and caching.
- Ensure cross-browser compatibility and adherence to WCAG guidelines for accessibility.
- Design, develop, and maintain RESTful APIs using Python (FastAPI) to support healthcare applications.
- Collaborate with frontend and mobile developers to integrate APIs effectively.
- Ensure APIs are secure, scalable, and performant to handle increasing loads.
- Build scalable applications using AWS services (Cognito, Pinpoint, IoT, MSK).
- Expand and manage services under AWS modules while implementing robust authentication protocols.
- Navigate Docker deployments to scale containerized applications efficiently.
- Write unit tests and integration tests using PyTest to ensure code quality and reliability.
- Conduct code reviews and implement best practices for high coding standards.
- Manage patient data efficiently using databases (MySQL, PostgreSQL, MongoDB).
- Optimize database queries for performance and scalability while ensuring data integrity.
- Implement and maintain security measures to protect sensitive healthcare data.
- Ensure compliance with healthcare regulations, including HIPAA.
- Regularly update and patch API endpoints to address vulnerabilities.
- Documentation and Collaboration:
- Create and maintain comprehensive documentation for APIs, workflows, and best practices.
- Maintain detailed change logs, version histories, and onboarding guides.
Must-Have Qualifications
- Advanced knowledge of Python and related frameworks (FastAPI, NumPy, Pandas, Pydantic) including multithreading and parallel design principles.
- Understanding of AWS, including knowledge of Cognito, Pinpoint, IoT, MSK and other services.
- Expertise in Javascript and frameworks such as ReactJS
- Deep understanding of user-centered design principles, design thinking methodologies, and usability best practices.
- Knowledge of HTTP(S) as a protocol
- Proficient in using and maintaining Docker containers.
- Strong understanding of RESTful API design principles and best practices.
- Experience with TDD and testing frameworks such as PyTest.
Nice-to-Haves
- Proficiency in C++, TypeScript
- Experience with Qt preferred but not required
- Experience with Google APIs is preferred.
- Design Acumen: Deep understanding of user-centered design principles, visual hierarchy, and interaction design fundamentals. Proficiency in translating complex healthcare workflows into intuitive, user-friendly interfaces.
- Detail-Oriented: Responsible for developing APIs that handle sensitive healthcare data. Ability to maintain high levels of accuracy and attention to detail in all tasks.
- Communication and Trust: Exceptional communication skills with the ability to collaborate effectively across teams. Ability to maintain the highest levels of confidentiality on a consistent basis.
- Organization and Efficiency: Capable of managing multiple projects and timelines simultaneously. Highly organized, with a keen eye for detail in all tasks and projects.
- Growth Mindset: Ability to learn from mistakes, reflect on them, and not repeat them. Curiosity and resilience in the face of setbacks, constantly seeking to improve and grow.
Technologies and Tools:
- Programming Languages: Python, Javascript, C++ (Optional)
- Frameworks: FastAPI, NumPy, Pandas, Pydantic, ReactJS
- Databases: MySQL, PostgreSQL, MongoDB
- Testing: PyTest
- Version Control: Git
- CI/CD: Jenkins, CircleCI
- Documentation: Confluence, Markdown
- Monitoring: Prometheus, Grafana
150000 - 225000 USD a year
Base Salary: $150k – $225k + meaningful stock options
Benefits: 100% company-paid medical, dental, vision; 401(k); generous PTO
Workspace: El Segundo HQ with rooftop views, espresso bar, and weekly team lunches