The Role

We’re looking for a Staff Engineer to join our Growth team and scale the programs that bring new members into Hinge Health. This team owns our member-to-member referral program end-to-end — the incentive mechanics, referral flows, and personalization systems that motivate existing members to refer colleagues and family members.

This is a high-ownership, full-stack role. You’ll set technical direction, work closely with product and data science, and have a direct line to business outcomes like referral conversion, cost-per-acquisition, and incremental bookings.

What You’ll Do

• Own the technical direction and roadmap for the member referral platform across the full stack — from frontend experiences to backend services and data pipelines.

• Scale incentive and referral systems to handle growing member volume and complexity without degrading conversion or user experience.

• Integrate ML model outputs (for example, propensity scores, personalized offers, and targeting signals) into referral surfaces to improve effectiveness.

• Design, instrument, and analyze A/B experiments; work with data science to close the feedback loop between model outputs and product outcomes.

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