Senior Platform Security Engineer

Job Summary

Owning the security of production systems, the full-time Senior Platform Security Engineer will manage mutual-TLS certificate infrastructure, build security workflows for network connectivity, and drive vulnerability remediation while working remotely in the US or Canada.

Key responsibilities

• Operate mutual-TLS certificate infrastructure for enterprise bank onboarding and product operations
• Build and maintain security workflows for private network connectivity, including endpoint tenancy mapping
• Drive end-to-end vulnerability remediation from application and infrastructure scanning to verified closure

Required qualifications

• 6+ years of experience in platform, infrastructure, or network security engineering with hands-on ownership of production systems
• Deep experience with PKI and certificate lifecycle management
• Strong understanding of TLS/mTLS
• Hands-on AWS networking and security experience
• Working knowledge of OAuth 2.0 and familiarity with certificate-bound token patterns