Ephapsys
Security Advisor
San Francisco or Remote
About Ephapsys
We leverage ephaptic coupling to pioneer a new paradigm for empowering and governing autonomous AI agents across industries.
As billions of agents spread across clouds, devices, and biological substrates, Ephapsys aims to be the decentralized identity and integrity layer that keeps every agent trusted, safe, and under control.
The Role
We are seeking a Security Advisor to help shape the security posture of Ephapsys as we build the identity, integrity, and control layer for autonomous AI agents.
This is a strategic advisory role for an experienced security leader who can strengthen our thinking across AI security, platform security, applied cryptography, and secure systems architecture.
You will work with the founder and engineering team to identify critical risks early, review architectural decisions, and help guide the company toward security practices appropriate for a high-trust AI infrastructure platform.
Responsibilities
Security Strategy
- Advise on the long-term security roadmap across the Ephapsys platform and SDK
- Help prioritize the highest-risk security issues in product, infrastructure, and deployment design
- Provide independent review of major trust, identity, and integrity assumptions
- Guide security tradeoffs appropriate for an early-stage but security-critical company
Architecture & Threat Modeling
- Review system architecture for attack surfaces across cloud, edge, and agent runtime environments
- Contribute to threat modeling for AI systems, model integrity, agent identity, and deployment workflows
- Advise on secure-by-design patterns for APIs, SDKs, model artifacts, and control planes
- Help assess the security implications of new features before they become embedded in the platform
Governance & Readiness
- Help define security practices aligned with enterprise and regulated-environment expectations
- Provide guidance on security controls, incident readiness, and trust posture communication
- Support the maturation of internal security processes without introducing unnecessary bureaucracy
- Advise on credible external security positioning for customers, partners, and stakeholders
- Support trust-building engagement with enterprise stakeholders where your perspective and relationships can accelerate meaningful conversations
Strategic Collaboration
- Engage with the founder and core engineers on major technical and security milestones
- Participate in periodic architecture and security reviews
- Bring practical perspective from prior security leadership, advisory, or research experience
Qualifications
Required
- Deep experience in cybersecurity, security architecture, applied cryptography, or secure distributed systems
- Strong ability to evaluate platform-level risks, trust boundaries, and adversarial threat models
- Experience advising or leading security strategy for software, cloud, AI, or infrastructure platforms
- Clear judgment on balancing rigorous security requirements with execution speed in an early-stage environment
- Ability to communicate security risks and design tradeoffs precisely to both technical and non-technical stakeholders
Preferred
- Experience with AI security, model integrity, agent security, or adversarial ML
- Familiarity with identity systems, PKI, attestation, key management, or hardware-rooted trust
- Experience advising startups, high-growth infrastructure companies, or frontier technical programs
- Background in enterprise security readiness, compliance-oriented controls, or trust architecture
- Established relationships with senior security, infrastructure, or technical decision-makers in enterprise environments
- Network within relevant security, infrastructure, or applied cryptography communities
What Success Looks Like
Within the first 3-6 months, you will have helped sharpen Ephapsys' core security posture, identified major architectural and operational risks, improved trust assumptions across the platform, and strengthened the company's security credibility with clear, practical guidance.
Why Join Ephapsys
- Influence the security foundations of a novel AI infrastructure company
- Work directly with the founder on trust, identity, and control architecture
- Help shape a security program early, while major platform decisions are still malleable
- Contribute meaningfully without taking on a full-time operating role
To apply, email jobs@ephapsys.com with your resume and a short note on why you are interested in this role.