Heartflow

Senior Test Engineer

Heartflow
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2 months ago
San Francisco, CA, USASenior / Staff+
H1B Sponsor

Base Salary

$165k - $205k/yr

Responsibilities

  • Design, implement, and maintain end-to-end automated test suites across UI, APIs, back-end services, and complete user workflows.
  • Develop AI-assisted test authoring, generative test planning, and intelligent failure triage strategies.
  • Build and own daily smoke and build-acceptance tests for development and staging environments.
  • Lead production smoke testing, monitoring-driven verification, and continuous post-deployment validation.
  • Create golden-dataset regression tests for ML pipeline services and validate algorithmic outputs against reference cases.
  • Automate testing for the WebGL-based 3D Web Viewer and Clinical/CaseOps UIs, including visual regression of 3D rendering.
  • Write traceable test plans, protocols, reports, and evidence consistent with regulated medical-device QMS requirements.
  • Perform validation of test infrastructure and automation tools according to internal QMS procedures and applicable standards.
  • Extend Selenium and Playwright frameworks for stability, parallel execution, and reuse across product lines.
  • Standardize API and integration testing, including DICOM ingestion and HL7 output validation at hospital and cloud boundaries.
  • Translate requirements into verifiable test cases with traceability and help close gaps in Ketryx-generated audit evidence.
  • Investigate failures across distributed systems, drive defects to resolution, and support defect-prevention initiatives.
  • Integrate automated tests into CI/CD pipelines to provide reliable and actionable engineering feedback.
  • Support quality audits, CAPAs, and regulatory submissions with test evidence and documentation.
  • Coordinate offshore and contractor test engineers, mentor Test Engineers, and contribute to hiring as the team scales.

Requirements

  • 5–8 years of experience in software test engineering, SDET, or quality engineering with strong hands-on automation experience.
  • Direct experience testing Software as a Medical Device or other regulated medical-device software is required.
  • Working knowledge of medical-device QMS practices and standards including ISO 13485, IEC 62304, ISO 14971, and 21 CFR Part 820 is required.
  • Strong proficiency with Selenium/WebDriver and Playwright, including framework design, page-object patterns, and flake-reduction techniques.
  • Experience designing and maintaining end-to-end automation frameworks covering complete workflows and system integrations.
  • Experience authoring traceable test plans, protocols, and reports in regulated environments.
  • Practical experience with AI-assisted testing, self-healing automation, or LLM-driven test generation and triage.
  • Solid Python skills plus at least one additional automation language such as TypeScript/JavaScript, Java, or C#.
  • Experience with API testing tools such as REST Assured, Postman, Karate, or Pact.io and familiarity with contract testing.
  • Experience integrating automated tests into CI/CD pipelines and working with cloud environments such as AWS.
  • Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
  • Preferred experience includes Ketryx, Jama, Polarion, DICOM, HL7, regulatory audits, ML/AI or clinical validation testing, medical imaging, complex 3D visualization testing, diverse test datasets, offshore or contractor coordination, performance testing tools, data-pipeline testing, microservices, and quality metrics.

Tech Stack

Apache JMeterC#GitHub ActionsHarnessJavaJavaScriptPostmanPythonSeleniumTypeScript

Categories

Heartflow

About Heartflow

501-1,000 employees

Heartflow is the global leader in AI-driven coronary artery disease (CAD) management, transforming how CAD — the world’s leading cause of death — is diagnosed and treated. Our advanced technology generates personalized, precision 3D heart models from a single CT scan, providing clinicians with the clarity and confidence to deliver earlier, more effective treatments — transforming CAD into a disease that can be managed for life. Heartflow One is the only complete, non-invasive, precision coronary care platform providing patient insights throughout the guideline-directed coronary CTA pathway. The AI-driven platform — including Roadmap™ Analysis, FFRct Analysis and Plaque Analysis — is supported by ACC/AHA guidelines and backed by more than 625 peer-reviewed publications. With over 650,000 patients treated, more than 1,800 leading institutions adopting our solution, and 99.5% of U.S. lives covered — Heartflow is redefining the standard of coronary care. We're a global company, with employees across the United States, Europe and Japan. Our headquarters are in San Francisco, California, with additional offices in California, Texas, the UK and Japan. We believe CAD shouldn’t be a silent threat. We’re changing the story of CAD by making it screenable, diagnosable, and manageable — empowering clinicians to save lives and giving patients more time for what matters most.