Senior Security Leader

Would you be interested in working for fast growing AI company in Dublin, CA who are looking for a "Senior Security Leader" to own and scale security across their AI platform, infrastructure, people, and physical footprint. This role requires deep experience operating in fast-moving startup environments
, strong judgment, and the ability to balance speed, trust, and risk in an AI-first company.

This is a builder role for someone who understands the realities of Bay Area startups, AI development cycles, and modern threat landscapes.

Own and execute the company’s end-to-end security strategy (application, infrastructure, data, people, and physical security)

• Serve as the primary security advisor to the executive team and Board
• Establish security as a business enabler for enterprise customers, partnerships, and global expansion

• Design and oversee security controls for AI systems
  , including:
• Model access controls and isolation
• Training data security and provenance
• Inference security and abuse prevention
• IP protection and model leakage prevention
• Partner closely with engineering and product to integrate security into the SDLC without slowing innovation

• Own cloud security posture (AWS/GCP/Azure as applicable)
• Define and enforce best practices around:
• Identity & access management
• Secrets management
• Data encryption, retention, and governance
• Incident detection and response
• Lead vulnerability management, penetration testing, and remediation efforts
• Lead readiness and ongoing compliance for frameworks such as:
• SOC 2, ISO 27001, customer security reviews
• Manage third-party risk and vendor security assessments
• Support customer security due diligence and enterprise procurement processes

• Build a security-first culture appropriate for a startup environment (practical, not bureaucratic)
• Develop lightweight but effective policies for:
• Employee security practices
• Device and access management
• Remote and hybrid work
• Advise on physical security and executive safety as needed

• Own incident response planning and execution
• Act as the calm, trusted leader during security incidents
• Coordinate with legal, comms, and leadership during high-impact events

• 10+ years in security leadership roles (startup and/or high-growth environments strongly preferred)
• Experience securing cloud-native, AI-driven, or data-intensive platforms
• Proven ability to operate in ambiguity and build systems from scratch
• Prior experience engaging with enterprise customers on security matters

• Comfortable with startup pace, tradeoffs, and incomplete information
• Pragmatic: knows when to push hard and when to unblock teams
• Strong communicator who can translate technical risk into business impact
• High trust, low ego, execution-oriented

• Understands the AI ecosystem
  , venture-backed company dynamics, and rapid iteration cycles
• Comfortable working cross-functionally with engineering, product, legal, and exec teams
• Can scale security alongside company growth without slowing momentum