CareerPlanSign in

Founding Security Engineer

San Francisco, California, United States💼 Full-time💰 $230,000–$230,000🗓 2026-08-14 → 2026-09-25

Core

Define security architecture and build a practical security program for an AI research platform handling sensitive voice, face, and device data at scale.

Role type

Founding Security Engineer (Senior IC)

Builds

Security architecture for LLM pipelines, cloud infrastructure, and customer-facing product

Domain

AI/ML security, Cloud Infrastructure, SaaS

Deliverable

production ML models | infrastructure

Required skills

Security architecture design, threat modeling, vulnerability discovery, multi-tenant isolation, penetration testing, identity and access management, security operations, enterprise security reviews, secure design principles

Preferred skills

LLM security, multi-region data residency, TypeScript, building security programs in high-growth startups

Technologies

Cloud infrastructure, LLM pipelines, TypeScript

Responsibilities

Define security architecture across LLM pipeline, cloud infrastructure, and product; Partner on threat modeling and vulnerability discovery; Harden multi-tenant isolation; Own penetration tests and remediation; Manage device, access, and security operations; Serve as technical authority for audits and enterprise reviews; Build scalable security roadmap

Seniority

Senior, hands-on IC with team-building potential

Sourced via workable · Listed on CareerPlan, which tracks 70,000+ jobs from 20+ sources.