Security Engineer - Product

📋 Description Own the security model for partner APIs: auth, isolation, abuse prevention, signing, audit logs. Drive a coherent auth strategy across services, incl. step-up auth and passkeys roadmap. Build device telemetry and behavioral signals for fraud/risk. Collaborate with Engineering on secure-by-design reviews; write threat models. Own secure SDLC: SAST/DAST, dependency scanning, secret detection. Lead incident response and remediation across services and with partners. 🎯 Requirements Strong programming skills in Java, Python, or comparable language. Experience designing/operating secure platform / B2B APIs at scale. Background in anti-ATO, anti-fraud, or authentication systems at scale. Working knowledge of AWS: IAM, KMS, networking, service-to-service auth. Comfort with AI tooling (Claude, Copilot) as a security multiplier. Excellent written communication; threat models and postmortems. 🎁 Benefits Meaningful startup equity 100% health, vision & dental primary coverage 75% dependent coverage Catered lunches and dinners $250/month commuter benefit Parental leave