Senior Software Engineer - Commerce Platform

WHO WE ARE

Healthcare needs a better rhythm: one that keeps care continuous and deeply human. Heidi is building an AI Care Partner that works alongside clinicians to make that possible.

We’re a team of doctors, engineers, designers, researchers, and creatives building tools that help clinicians stay focused on what matters most: their patients.

In just 18 months, Heidi has given back more than 18 million hours to healthcare professionals — supporting 73 million patient visits in 116 countries. Today, more than two million patient visits each week are powered by Heidi worldwide.

Backed by nearly $100 million in funding, we’re growing in the US, UK, Canada, and Europe, partnering with leading health systems including the NHS, Beth Israel Lahey Health, and Monash Health.

YOUR TEAM

You'll join the small team powering how Heidi grows. Your work shapes the architecture of our billing, payments, and entitlements platform: how the pieces fit together so customers can seamlessly access the products they need. Near-term that means launching usage-based billing, building seat management, and scaling our Stripe integration into global markets. You'll do it with a small group of strong engineers and the latest agentic tooling at your fingertips, where every feature shipped removes friction for customers and fuels the revenue that drives Heidi forward.

WHAT YOU’LL DO

- Build the revenue engine: Ship features across our billing platform, Stripe integration, and entitlements service, directly shaping how Heidi monetises and scales

- Launch usage-based billing: Contribute to metering, rating, proration, and invoice accuracy as we roll out usage-based pricing

- Deliver user-facing products: Ship seat management, subscription UX, and self-serve purchasing for individuals and organisations

- Drive growth through product: Build upsell and upgrade flows that match users to the right plan and turn product usage into revenue

- Work across the stack: Own features end-to-e...