Circadia Health

AI-powered contactless vital signs monitoring

Senior QA Engineer

Test Automation EngineeringConfirmed live in the last 24 hours

Full-timeEl Segundo, CA, USA$110k - $155k /yrIn-person

About the Job

Requirements

At least 5 years in software QA, SDET, or test engineering roles, with ownership of quality for at least one significant production system.
Experience authoring formal test plans and designing systematic, exhaustive test cases, including boundary analysis, equivalence partitioning, risk-based testing, and negative testing.
Experience producing detailed test reports and verification and validation documentation in a medical device, healthcare, or other highly regulated environment, such as FDA, ISO 13485, IEC 62304, or comparable.
Strong Python scripting and hands-on test automation experience with PyTest or similar frameworks, including API testing and UI automation using Playwright, Selenium, or equivalent.
Experience testing integrations with third-party systems outside the team's control.
Strong SQL skills and comfort validating data across relational databases and data warehouses.
Experience integrating automated tests into CI/CD pipelines.

Responsibilities

Author test plans for new features, releases, and customer deployments, defining scope, risk-based prioritization, entry and exit criteria, environments, and data requirements.
Build test suites covering the platform's behavior, including boundary conditions, failure-mode handling, degraded-network behavior, malformed HL7 v2 and FHIR payloads, timezone and identity edge cases across EHR integrations, and alert-delivery paths.
Write comprehensive test reports and verification and validation documentation for the Design History File, regulatory submissions, and ISO 13485 and FDA QMSR audits, including requirements-to-test traceability matrices, defect trending, and evidence packages in partnership with the Design Quality team.
Build and maintain automated regression, API, and UI test suites in Python with PyTest against FastAPI services and React applications, integrated into CI/CD.
Create test tooling for test data generation, environment setup, and synthetic device telemetry.
Own release readiness through a trusted regression suite, flaky-test triage, and a clear verdict on each release candidate.
Champion testability across engineering by reviewing designs for verifiability, partnering with engineers on test coverage, and reinforcing quality in development practices.

Desired Qualifications

Experience with Software as a Medical Device verification, IEC 62304 software lifecycle documentation, or direct contribution to a 510(k) or CE submission.
Experience with healthcare data and integration testing, including HL7 v2, FHIR, ADT feeds, or EHR vendor systems.
Experience working in HIPAA or SOC 2 environments and handling protected health information appropriately in test data.
Experience with performance, load, or telemetry-ingestion testing at IoT scale.
Significant open-source contributions, experience with systems that outlived your tenure, or a high-bar engineering background.

Salary Range: 110000 to 155000 (Currency: USD) (Pay period: per-year-salary)

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.

Why this role exists

Care teams act on what our platform tells them, which is why we hold our software to a medical-grade quality bar. QA at Circadia is an engineering discipline in its own right: our platform carries 70,000 years of continuous vital signs joined to clinical records from more than 400,000 patients, and verifying it demands the same rigor that built it. You will join our QA team as a senior engineer and help scale that discipline as we grow toward hundreds of thousands of monitored patients — designing test strategy, expanding automation, and producing the verification evidence that supports our regulatory work, so that quality keeps pace with everything we ship.

What you'll own

Test strategy and planning. Author test plans for new features, releases, and customer deployments — defining scope, risk-based prioritization, entry/exit criteria, environments, and data requirements — so that "tested" means the same thing to Engineering, Clinical, and Quality.
Rigorous, exhaustive test case design. Build test suites that cover the platform's full behavior surface: boundary conditions, failure-mode handling, degraded-network behavior from facilities we don't control, malformed HL7 v2 and FHIR payloads, timezone and identity edge cases across EHR integrations (PointClickCare, Homecare Homebase, WellSky), and the alert-delivery paths where reliability matters most.
Compliance-grade test reporting. Write comprehensive, detailed test reports and verification & validation documentation suitable for our Design History File, regulatory submissions (510(k)), and ISO 13485 / FDA QMSR audits — including requirements-to-test traceability matrices, defect trending, and evidence packages, in partnership with our Design Quality team.
Automation and scripting. Build and maintain automated regression, API, and UI test suites in Python (PyTest) against our FastAPI services and React applications, integrated into CI/CD so every merge to production runs the full safety net. Script the tooling — test data generation, environment setup, synthetic device telemetry — that makes thorough testing fast.
Regression protection. Own the release-readiness signal: a regression suite the team trusts, flaky-test triage, and a clear verdict on every release candidate.
Quality culture. Champion testability across the engineering org — reviewing designs for verifiability, partnering with engineers on test coverage, and reinforcing quality as a property of how we build.

How success is measured

Release quality: every release candidate ships with a clear, evidence-backed readiness verdict.
Regression suite coverage and reliability: high coverage of critical paths, low flake rate, trusted by the team as a release gate.
Audit readiness: test documentation accepted into the DHF and regulatory submissions without rework.
Release velocity: automation reduces, not adds to, time from merge to production.

Required Qualifications

5+ years in software QA, SDET, or test engineering roles, with ownership of quality for at least one significant production system
Demonstrated experience authoring formal test plans and designing systematic, exhaustive test cases (boundary analysis, equivalence partitioning, risk-based and negative testing)
Experience producing detailed test reports and V&V documentation in a medical device, healthcare, or other highly regulated environment (FDA, ISO 13485, IEC 62304, or comparable)
Strong Python scripting and hands-on automation experience with PyTest or similar frameworks, including API testing and UI automation (Playwright, Selenium, or equivalent)
Experience testing integrations with third-party systems you do not control
Strong SQL and comfort validating data across relational databases and warehouses
Experience integrating automated tests into CI/CD pipelines

Preferred

Software as a Medical Device (SaMD) verification, IEC 62304 software lifecycle documentation, or direct contribution to a 510(k) or CE submission
Healthcare data and integration testing: HL7 v2, FHIR, ADT feeds, EHR vendor systems
HIPAA / SOC 2 environments and sound PHI handling in test data
Performance, load, or telemetry-ingestion testing at IoT scale
Significant open source, systems that outlived your tenure, or a high-bar engineering background

Circadia Health is an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. All employment decisions are based on business needs, job requirements, and individual qualifications, without regard to race, color, religion, sex (including pregnancy, sexual orientation, or gender identity), national origin, age, disability, genetic information, veteran status, or any other status protected by law.

About the Company

Circadia Health

AI-powered contactless vital signs monitoring

Circadia Health offers AI-powered, contactless patient monitoring for senior care. A bedside radar device tracks respiratory rate, heart rate, motion, and bed exits from up to eight feet away, with its data analyzed by AI to predict health events hours or days in advance; virtual nurses review the signals and provide 24/7 predictive risk alerts, integrated into electronic health records. The system is FDA-cleared (C100 for respiratory rate in 2020 and C200 for heart rate, motion, and bed exit in 2024) and is offered on a subscription basis to skilled nursing facilities and other long-term care providers. Its goal is to move healthcare from reacting to problems toward predicting and preventing deterioration, reducing preventable hospitalizations and care costs while improving senior outcomes.

Company size: 51-200
Company stage: N/A
Total funding: $100.2M
Headquarters: London, United Kingdom
Founded: 2016

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