Second Security Engineer at Nooks.ai, securing an AI-native sales platform and its AI agents. Own threat modeling, secure SDLC, cloud hardening, compliance (SOC 2), and novel AI security challenges (guardrails, prompt injection). Requires 4-5+ years in infosec with strong app/cloud security fundamentals; startup experience preferred.
200k – 315k/yr
Hybrid5+ YOESecurity Engineering
Platform Engineer, Security
DecagonSan Francisco, CA
Lead application security strategy and implementation for Decagon's conversational AI platform. Partner with engineering teams to build security into AI-powered applications and establish testing programs.
200k – 330k/yr
On-site3+ YOESecurity Engineering
Security engineer, detection and response (US)
WriterSan Francisco, CA
Builds and implements detection systems and automated responses for AI-specific threats like prompt injection and model extraction on distributed GPU infrastructure. Leads incident response, proactive threat hunting, and cross-team security coordination with 3-5+ years in security operations.
200k – 240k/yr
Hybrid3+ YOESecurity Engineering
Software Engineer, Trust
NotionSan Francisco, CA +1
Builds authentication, security features, and AI-powered risk detection systems to ensure user trust and safety at scale. Requires 5-8 years experience in trust/safety/security with cross-functional collaboration.
200k – 280k/yr
Hybrid5+ YOESecurity Engineering
Infrastructure Engineer, Security
Thinking Machines LabSan Francisco, CA
Owns and evolves security infrastructure across compute, storage, networking, and data platforms for foundation models. Architects secure patterns, manages identities/secrets, builds threat models, and automates security checks in Kubernetes/cloud environments. Requires strong systems programming and infra experience.