Cardiologist ECG Review Jobs: Earn $200/hr Reviewing ECGs for AI (2026 Guide)
If you’re a practicing cardiologist, fellow, or advanced resident in the US, Canada, or UK, there’s a remote side-income option you probably haven’t heard about.
Affiliate disclosure: This post contains my personal Outlier referral link. If you sign up and get approved through it, I may earn a referral bonus at no extra cost to you.
It’s a paid opportunity through Outlier AI (sister company of Scale AI, Wikipedia), the expert platform that connects licensed clinicians with AI labs (including the teams behind some of the largest language models in the world) to improve how AI reasons through diagnostics. Cardiology is one of the highest-paying specialties on the platform right now, with published rates reaching up to $200/hr for qualified experts.
Here’s exactly what the role involves, who qualifies, what the pay actually looks like in practice, and how to apply.
👉Link: Sign Up and Apply here
What Is Outlier AI?
Outlier is a platform that hires subject-matter experts- doctors, engineers, lawyers, writers to evaluate and improve AI model outputs. Think of it as freelance consulting, except your “client” is an AI system that needs a real cardiologist’s judgment to get diagnostic reasoning right.
For cardiology specifically, the work centers on ECG interpretation and clinical reasoning, not patient care. You’re not diagnosing real patients or carrying malpractice risk; rather, you’re grading and correcting how an AI model reasons through cases.
What the Work Actually Looks Like
Based on the current cardiology project scope, contributors typically do a mix of:
- Reviewing ECG images and interpretations– checking AI-generated reads for accuracy
- Case synthesis– writing or solving complex clinical scenarios to test the AI’s diagnostic reasoning
- Expert peer review– critiquing AI-generated reports for clinical rigor
- Ranking model outputs– comparing multiple AI responses to the same case and scoring which reasoning is sound
It’s asynchronous and fully remote. There’s no minimum hours requirement, so it genuinely works as a side project around a clinical schedule rather than a second job.
How Much Can You Actually Earn?
This is the part most people gloss over, so here’s the honest version.
Outlier’s cardiology listings advertise rates up to $200/hr (some project variants list up to $250/hr), with pay based on the project and task complexity. You’re paid weekly, with no invoicing and no minimum commitment. You can do a few hours one week and skip the next.
Who Qualifies
Outlier’s cardiology program is currently open to:
- Certified attendings, fellows, and advanced residents
- Practicing in the United States, Canada, or the United Kingdom
If you meet those criteria, the application process is quick- most of it is verifying your credentials and completing a short assessment task.
How to Apply
- Go to the Outlier Sign Up page.
- Submit your credentials.
- Complete the qualification assessment.
- Once approved, you’ll get access to available cardiology projects and can start picking up tasks on your own schedule.
There’s no cost to apply, and no obligation to keep working once you start. You can try it for a few hours and decide if it’s worth continuing.
Tips to Make the Most of It
- Start with a small time block (1-2 hours) before judging your effective hourly rate- speed improves fast after the first few tasks.
- Read task instructions fully before starting– rubric misses are the most common reason submissions get bad feedback (Your review gets reviewed by experts for a double-check).
- Batch similar task types in one sitting rather than switching between task formats, since context-switching slows you down.
Ready to improve next generation of AI? Apply through Outlier’s cardiology program here.
FAQs
Is this legit, or is it a scam?
Outlier is a real company that contracts with major AI labs for expert data annotation and evaluation work; cardiology and other medical specialties are established categories on the platform. As with any freelance/contractor work, read the terms to know what you are signing up for.
Do I need malpractice insurance or a state license in every state?
You’re evaluating AI outputs, not treating patients, so this isn’t clinical practice in the traditional sense. Confirm current requirements directly with Outlier during onboarding, since specifics can change.
How and when do I get paid?
Contributors are paid weekly based on completed work, with no invoicing required.
Can residents apply, or only attendings?
Advanced residents and fellows are eligible alongside board-certified attendings, per current program requirements.
Is this a full replacement for clinical income?
No. It’s designed as flexible, part-time supplemental income, typically a few hours a week around an existing clinical schedule.
