Technical proficiency
Check what they built in production: cycle or ovulation prediction logic, HealthKit and Google Fit menstrual data sync, FHIR resources, wearable BBT or HRV ingestion, consent flows.
Evidence to listen for
- Command of the languages, frameworks, and data tools the role actually uses
- Understands correctness, performance, and failure modes, not just syntax
- Has opinions on testing and can justify them
- Reads and reasons about code they did not write
Five-point scoring guide
Cannot work independently; fundamentals are missing.
Weak fundamentals; output needs heavy review.
Competent for the role; needs guidance on complex or unfamiliar work.
Strong practitioner; handles hard problems with little guidance.
Names the stack and health data APIs used, describes prediction or symptom-logging features shipped, and explains their own code contribution precisely.