Principal Information Security Engineer
Core
Lead and elevate security across infrastructure, applications, and internal systems by building scalable security foundations and enabling safe, rapid business movement.
Role type
Principal Information Security Engineer (hands-on IC)
Builds
Internal security tooling (agent-based, code analysis, dynamic scanning), security automation, and secure cloud architectures
Domain
Fintech / Identity Verification / Cloud Security
Deliverable
production ML models | infrastructure | product features
Required skills
Systems programming (Go, Rust, C++), High-level languages (Python, TypeScript), AWS infrastructure expertise, Penetration testing, Vulnerability research, Security automation design, Threat modeling, Incident response
Preferred skills
LLM-based agent development, Security product company experience, Fintech/Identity domain knowledge, Industry certifications (OSCP, OSCE, GPEN, GXPN), Detection engineering, Published security research
Technologies
AWS (IAM, EKS, RDS), Go, Rust, C++, Python, TypeScript, AI/LLM agents
Responsibilities
Design and build internal security tooling from scratch; Identify vulnerabilities across AWS-based stack; Develop AI-assisted offensive security tooling; Build and maintain security automation; Conduct hands-on penetration testing and vulnerability research; Partner with engineering to remediate findings and embed security; Participate in security on-call rotation and incident response; Contribute to threat modeling and security design reviews
Seniority
Principal, hands-on IC with strategy & mentorship
