Heartflow is a medical technology company advancing the diagnosis and management of coronary artery disease, the #1 cause of death worldwide, using cutting-edge technology. The flagship product—an AI-driven, non-invasive cardiac test supported by the ACC/AHA Chest Pain Guidelines called the Heartflow FFR CT Analysis—provides a color-coded, 3D model of a patient’s coronary arteries indicating the impact blockages have on blood flow to the heart. Heartflow is the first AI-driven non-invasive integrated heart care solution across the CCTA pathway that helps clinicians identify stenoses in the coronary arteries (RoadMap™Analysis), assess coronary blood flow (FFR CT Analysis), and characterize and quantify coronary atherosclerosis (Plaque Analysis).

Our pipeline of products is growing and so is our team; join us in helping to revolutionize precision heartcare. Heartflow is a publicly traded company (HTFL) that has received international recognition for exceptional strides in healthcare innovation, is supported by medical societies around the world, cleared for use in the US, UK, Europe, Japan and Canada, and has been used for more than 500,000 patients worldwide. The Test Architect is a senior individual contributor and technical leader on the Test Engineering team.

This role sets the technical direction for end-to-end automated testing, post-deployment verification, and tool validation across our regulated SaMD products, partnering closely with the Director of Test Engineering and engineering leadership. The Test Architect drives our AI-first test automation strategy designing how AI-assisted authoring, self-healing automation, and LLM-driven triage are applied at scale while ensuring all activities meet the rigor of a medical device QMS. This is the founding technical hire for Heartflow's Test Engineering function, responsible for architecting the end-to-end testing framework across frontend, backend, 3D modeling, and AI/ML systems, and for building the automation pipeline the rest of the team will be hired and scaled against.

The ideal candidate brings deep technical expertise in modern automation frameworks (Selenium and Playwright), a strong track record shipping regulated SaMD products, and the ability to influence engineers and leaders across the organization.

Responsibilities

Set and evolve the technical strategy for end-to-end (E2E) test automation across Heartflow's full pipeline, defining patterns, frameworks, and architecture that scale with the platform. Drive the AI-first approach to test automation: define how AI-assisted authoring, self-healing locators, AI generated spec driven test development and LLM-driven triage are adopted, evaluated, and rolled out across teams. Architect and own post-deployment testing capabilities, including production smoke, synthetic monitoring, and continuous validation against live environments.

Design test depth and rigor calibrated to each software component's safety classification, ensuring higher-risk components receive deeper verification and evidence. Author the most complex and consequential test plans, protocols, and reports; set the standards and templates other engineers follow under our QMS. Lead tool validation strategy for test infrastructure and automation tooling, partnering with RA/QA to ensure validation evidence meets regulatory expectations.

Architect, build, and continually improve UI and mobile automation including but not limited to Selenium and Playwright — driving stability, parallelism, observability, and reuse across products, including our WebGL-based 3D viewer and desktop clinical applications. Define API and integration testing standards using tools such as REST Assured, Postman, Karate, and contract testing where appropriate. Define testing standards for medical imaging and clinical data interoperability protocols, and for report/document output validation.

Requirements

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