Full-Time

Software Engineer

Data & ML Ops

Posted on 8/27/2025

HeartFlow

HeartFlow

501-1,000 employees

Non-invasive cardiac imaging to guide treatment

Compensation Overview

$130k - $220k/yr

+ Cash Bonus + Equity

San Francisco, CA, USA

Hybrid

Category
Software Engineering (1)
Required Skills
Kubernetes
Microsoft Azure
Python
Apache Spark
SQL
Docker
AWS
Terraform
Hadoop
Google Cloud Platform
Requirements
  • Bachelor's degree or Master's degree in Computer Science, Engineering, or a related field.
  • At least 2 years of relevant software engineering experience with hands-on experience in cloud-based distributed data systems.
  • Strong foundation in software engineering principles and practices, with proficiency in Python and Structured Query Language (SQL).
  • Deep understanding of modern distributed data cloud architectures for structured and unstructured data.
  • Experience with distributed computing frameworks such as Ray, Spark, or Dask, and supporting infrastructure such as Hadoop, Docker, and Kubernetes.
  • Proficiency with at least one cloud provider (Amazon Web Services, Google Cloud Platform, or Microsoft Azure).
  • Experience with infrastructure as code tools such as Cloud Development Kit (CDK) or Terraform.
  • Experience constructing and maintaining data products for technical stakeholders.
  • Excellent communication and interpersonal skills, with the ability to communicate to both technical and non-technical audiences.
Responsibilities
  • Develop robust ETL (Extract, Transform, Load) processes to integrate data from diverse sources into Heartflow's data ecosystem.
  • Design and maintain scalable data pipelines that provide training-ready datasets.
  • Implement and manage tools to track and document data lineage, from source to consumption.
  • Empower consumers of data products through detailed documentation.
  • Develop and maintain a large-scale distributed computing platform for ML algorithm training and evaluation.
  • Develop and maintain a standardized approach to ML algorithm experiment tracking using tools like MLFlow.
  • Work cross-functionally with Researchers and Engineers to understand their needs for ML algorithm training and production monitoring.
Desired Qualifications
  • Experience with image-based data and algorithms (convolutional neural networks, image processing techniques).
  • Experience with orchestration frameworks (Dagster, AWS StepFunctions, Temporal.io).
  • Experience with ML model deployment.
  • Experience with data visualization/dashboarding tools like Tableau.
  • Prior experience working in a healthcare-domain or highly-regulated environment.
  • A keen interest in staying up-to-date with the latest trends and advancements in data architecture and distributed computing.
  • Blog (or other media) communicating the candidate’s data science or engineering projects, ideas, or first-principles thinking.

HeartFlow provides a non-invasive cardiac test that helps doctors visualize a patient’s coronary arteries to diagnose and plan treatment for heart disease. It uses a proprietary set of analyses—FFRCT Analysis, RoadMap Analysis, Plaque Analysis, and HeartFlow Planner—to create a detailed, patient-specific visualization from imaging data, enabling clinicians to assess blood flow and plaque without surgery. This approach reduces the need for invasive procedures, lowers risk for patients, and can cut costs for healthcare providers. Compared with traditional methods, HeartFlow offers validated, FDA-cleared tools that integrate multiple analyses into one platform, giving physicians a clearer, data-driven basis for diagnosis and treatment decisions. The company’s goal is to improve cardiovascular care by making safer, more efficient diagnosis and treatment planning widely available in hospitals and clinics around the world.

Company Size

501-1,000

Company Stage

IPO

Headquarters

Redwood City, California

Founded

2010

Simplify Jobs

Simplify's Take

What believers are saying

  • 2025 revenues hit $176M, up 40%, with 24-26% growth to $218-222M projected 2026.
  • FISH&CHIPS delivers greater-than-modeled cost savings, boosting NHS and payer adoption.
  • Capricorn's $48M stake and Bain's $419M investment signal strong investor confidence.

What critics are saying

  • Ongoing $116.79M 2025 net losses exhaust cash, forcing dilutive financing by 2027.
  • NHS cost scrutiny post-FISH&CHIPS slashes margins on $160.6M US revenues in 2026.
  • Siemens Healthineers AI-CT rivals capture 30% US hospital contracts within 12 months.

What makes HeartFlow unique

  • Lesion-specific FFRCT predicts MI and revascularization strongest in FISH&CHIPS 90,000-patient study.
  • PCI Navigator integrates AI 3D models for pre-procedural stent planning launched October 2025.
  • FFRCT combines anatomy, physiology, plaque analysis in personalized 3D heart models.

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Benefits

Remote Work Options

Stock Options

401(k) Company Match

Growth & Insights and Company News

Headcount

6 month growth

2%

1 year growth

2%

2 year growth

1%
Yahoo Finance
Mar 23rd, 2026
HeartFlow soars 27% as firm targets 24-26% revenue growth in 2026

Heartflow Inc. surged 27% week-on-week following its strong 2025 performance and optimistic growth guidance. The medical technology company reported 2025 revenues of $176 million, up 40% from $125.8 million in 2024, with US revenues rising 41% to $160.6 million and international revenues climbing 26% to $15.4 million. The company remains unprofitable, posting a net loss of $116.79 million, 21% higher than the previous year. However, fourth-quarter net loss decreased 26% to $24.4 million. For 2026, Heartflow projects revenue growth of 24% to 26%, targeting between $218 million and $222 million. CEO John Farquhar said the guidance "reflects strong business fundamentals" and expressed high confidence in consistent execution.

Yahoo Finance
Mar 22nd, 2026
Capricorn Investment Group buys $48M stake in AI cardiac diagnostics firm HeartFlow

Capricorn Investment Group has purchased 1.7 million shares of HeartFlow, establishing a new position worth $48.18 million in the AI-powered cardiac diagnostics company, according to an SEC filing dated 17 February 2026. The stake represents 5.83% of Capricorn's reportable assets under management. HeartFlow offers AI-driven, non-invasive diagnostic solutions for coronary artery disease, generating revenue from healthcare providers and systems. The company went public in August 2025 and currently has a market capitalisation of $2.22 billion. As of 20 March 2026, HeartFlow shares traded at $26.30, down 10.7% year-to-date from a 52-week high of $41.22 reached last October. The company reported trailing twelve-month revenue of $161.88 million and a net loss of $125.37 million.

Yahoo Finance
Mar 17th, 2026
HeartFlow to report Q4 results with $46.5M revenue expected, analysts cut earnings forecast to -$2.11 per share

HeartFlow Inc is set to report Q4 2025 earnings on 18 March 2026. The consensus estimate projects revenue of $46.50 million and a loss of $0.27 per share. Full-year 2025 revenue is expected to reach $173.36 million, with a loss of $2.11 per share. Over the past 90 days, revenue estimates have increased slightly, whilst earnings estimates have declined. In Q3 2025, HeartFlow beat revenue expectations by 10.29% but missed earnings forecasts, posting a loss of $1.04 per share against an expected loss of $0.32 per share. The stock fell 13.43% following that release. Six analysts have set an average one-year price target of $38.50, suggesting an 83.51% upside from the current price of $20.98. The average brokerage recommendation is "Outperform".

Daily Political
Feb 3rd, 2026
HeartFlow's $317M IPO lock-up period ends tomorrow as analysts set $38.50 target

HeartFlow, a medical technology company developing non-invasive diagnostics for coronary artery disease, will see its lock-up period expire on 4th February. The company issued 16,666,667 shares in its August public offering at $19.00 per share, raising $316.7 million. Following the expiry, restrictions preventing company insiders and major shareholders from selling shares will be lifted. Shares traded at $28.78 on Tuesday, giving the company a market capitalisation of $2.45 billion. HeartFlow has received positive analyst coverage, with five buy ratings, two hold ratings and one sell rating. The consensus price target stands at $38.50. The company's technology uses computational modelling to analyse coronary CT angiography data, creating three-dimensional physiological models to identify coronary lesions without invasive procedures.

The Motley Fool
Nov 30th, 2025
HeartFlow Acquired for $65M by Billionaire

Tulsa-based Schusterman Interests acquired 1.9 million shares of HeartFlow, Inc. for $65 million, making it the fourth-largest holding in their portfolio. HeartFlow, an AI-driven heart diagnostics company, saw its shares rise 70% from its $19 IPO price in August. The acquisition reflects confidence in HeartFlow's technology and potential for revenue growth. As of September 30, HeartFlow represented 14.9% of Schusterman's 13F assets.

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