Senior Test Engineer

HeartFlow, Inc

Design, implement, and maintain end-to-end (E2E) automated test suites that exercise complete user workflows across UI, API, and back-end services, executing against the architecture and standards set by the Test Architect.; Champion an AI…

Posted 7/9/2026Verified active Jul 25, 2026, 12:36 AMcontractSan Francisco • California • 🇺🇸 United StatesSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Candidates should emphasize their expertise in designing and implementing automated testing frameworks, particularly in regulated medical device environments. Highlighting experience with AI-assisted testing tools, strong programming skills, and proficiency in automation tools like Selenium and Playwright will be crucial for success in this role.

Highest-signal resume keywords

Experience in Software Test EngineeringDirect experience with Software as a Medical Device (SaMD)Strong proficiency with Selenium and PlaywrightWorking knowledge of medical device QMS practicesExperience with AI-assisted testing tools

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Automated TestingEnd-to-End (E2E) TestingSeleniumPlaywrightPythonAPI TestingCI/CD IntegrationTest DocumentationFramework DesignAI-Augmented Test Authoring

Soft Skills

Attention to DetailClear CommunicationProblem SolvingCollaborationAdaptability

Tools & Technologies

REST AssuredPostmanGitHub ActionsAWSKaratePact.io

Certifications & Qualifications

ISO 13485IEC 62304ISO 1497121 CFR Part 820

Industry Keywords

Software as a Medical Device (SaMD)Regulated Medical Device SoftwareQuality Management System (QMS)Test DocumentationTraceability

Tech Stack

Tools & technologies

AwsCloudDistributed systemsJavaJavascriptJmeterMicroservicesPythonSeleniumTypescript

About the role

Key responsibilities & impact

Design, implement, and maintain end-to-end (E2E) automated test suites that exercise complete user workflows across UI, API, and back-end services, executing against the architecture and standards set by the Test Architect.
Champion an AI-first automation strategy. Implement and scale test coverage using AI-assisted authoring and generative test planning derived from AI-generated requirements, while leveraging intelligent triage to minimize maintenance overhead.
Build and own a baseline suite of daily smoke/build-acceptance tests covering core workflows across development and staging environments, closing a current gap where automated testing only runs during formal V&V cycles.
Lead post-deployment testing activities, including production smoke tests, monitoring-driven verification, and continuous validation against live environments.
Design and implement golden-dataset regression tests for HeartFlow's ML pipeline services, validating algorithmic outputs against curated reference cases.
Build automated test coverage for HeartFlow's WebGL-based 3D Web Viewer and Clinical/CaseOps UIs using Playwright, including visual regression for 3D model rendering and view generation.
Author clear, traceable test plans, test protocols, and test reports that meet the documentation expectations of a regulated medical device QMS.
Perform tool validation for test infrastructure and automation tooling in accordance with internal QMS procedures and applicable standards.
Build and maintain UI automation using Selenium and Playwright
extend frameworks for stability, parallelism, and reuse across product lines.

Requirements

What you’ll need

5–8 years of experience in software test engineering, SDET, or quality engineering roles, with a strong hands-on automation background.
Required: Direct experience testing Software as a Medical Device (SaMD) or other regulated medical device software.
Required: Working knowledge of medical device QMS practices and applicable standards (e.g., ISO 13485, IEC 62304, ISO 14971, 21 CFR Part 820), including test documentation, traceability, and tool validation.
Required: Strong proficiency with Selenium / WebDriver and Playwright, including framework design, page-object patterns, and stability/flake reduction techniques.
Demonstrated experience designing and maintaining E2E automation frameworks that cover complete workflows and system integrations.
Experience authoring test plans, protocols, and reports in a regulated environment, with attention to traceability between requirements, test cases, and evidence.
Practical experience with AI-assisted testing tools and techniques (e.g., AI-augmented test authoring, self-healing automation, LLM-driven test generation or triage).
Solid programming skills in Python and at least one additional mainstream language used for automation (e.g., TypeScript/JavaScript, Java, or C#).
Experience with API testing tools (REST Assured, Postman, Karate, Pact.io or equivalent) and basic familiarity with contract testing concepts.
Experience integrating automated tests into CI/CD pipelines (e.g., GitHub Actions, Harness) and working with cloud environments such as AWS.