Principal Software Engineer (Security Engineering)

Job Summary

Required Qualifications

• 10+ years of hands-on software engineering, building and shipping production systems
• Bachelor's degree in a relevant field or equivalent experience
• Fluency in TypeScript and at least one of Go or Python; depth across the stack from SDK to infrastructure
• Proven experience building and shipping production SDKs or security-critical libraries
• Track record as a principal or lead engineer, setting technical direction while staying hands-on
• Deep, non-negotiable security expertise: cryptographic primitives and protocols (Ed25519, JWT/JWKS, OAuth2/OIDC, PKI, TLS, signature schemes), threat modeling (STRIDE or equivalent)
• Strong understanding of DNS and DNS security (DNSSEC, TXT records, resolution) and how DNS records can anchor cryptographic identity
• Working familiarity with the agentic AI ecosystem (agent identity, MCP, A2A patterns)
• Minimal travel expected; occasional on-sites as needed
• Ability to work across time zones as part of a global organization as needed"],
• restrictions":[],
• summary":"Own the security architecture and threat model for the DNSid platform, SDKs, and supporting infrastructure; design and review the cryptographic core; build and maintain DNSid SDKs (TypeScript, Go, Python) with security-first design; define and enforce supply-chain security practices; conduct security reviews of new features and integrations; partner with IETF drafts to ensure security properties; establish secure-by-default patterns for third-party integrations; own the security posture of the entire IDIL engineering organization including secure deployment patterns, secrets management, and SOC 2 readiness; promote Identity Digital's core values; minimal travel; collaborate across time zones." ,
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