Principal Security Engineer, Privy
Core
Define, build, and operate security programs for high-risk fintech and crypto infrastructure products including embedded wallets, authentication systems, and transaction flows.
Role type
Principal Security Engineer (Senior IC)
Builds
Security architecture, controls, automation, and incident response capabilities for crypto custody-adjacent services and developer platforms.
Domain
Financial Technology / Cryptocurrency / Cloud Security
Deliverable
production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work
Required skills
Security architecture, threat modeling, application security, cloud security, incident response, vulnerability research, cryptographic protocols, secure SDLC, security automation, risk-based prioritization
Preferred skills
Deep expertise in blockchain threat models, hardware-backed security models, OAuth/OIDC, passkeys/WebAuthn, wallet signing flows
Technologies
AWS, SAST, DAST, dependency analysis, vulnerability scanners, logging pipelines, CI/CD security tools
Responsibilities
Lead security architecture reviews for embedded wallets and key management systems; Conduct advanced threat modeling for web, mobile, cloud, and blockchain systems; Identify and drive remediation of vulnerabilities across applications and infrastructure; Design and implement scalable security controls and automation; Lead incident response and security investigations; Evaluate security implications of new product launches and cryptographic designs; Develop security standards and engineering guidance; Mentor engineers on secure design and exploitability analysis.
Seniority
Principal, hands-on IC with strategic influence
