Chief Information Security Officer

Lineation is building the security and governance layer for the agentic enterprise.

As AI agents increasingly act across applications, infrastructure, data, and business workflows, organizations need a new security model—one designed not only to protect systems, but to control and understand autonomous actions.

Lineation gives enterprises the ability to make AI agents controllable, observable, and accountable through identity, policy enforcement, runtime controls, guardrails, and auditability.

We are building for a world where AI does not just generate - it acts.

We believe the future of work is not AI in a chat box. It is agentic workflows that plan, call tools, move data, and act across systems on behalf of people. That shift is already underway. What is still missing is an honest security layer that treats agents like what they are: privileged software with judgment, memory, and reach.

Lineation exists to help enterprises secure autonomous AI before it becomes invisible infrastructure. We are building a unified control plane for policy, identity, risk, and auditability across models, tools, applications, and environments. Our approach is grounded in centralized governance with distributed enforcement, trusted lineage, and strict controls for high-risk actions without unnecessary friction.

We are seeking a forward-thinking Chief Information Security Officer (CISO) to help define what security leadership looks like in the age of autonomous AI.

This is not a conventional CISO role.

You will sit at the intersection of cybersecurity, AI, product, enterprise trust, cloud security, data governance, and go-to-market strategy
. You will help shape Lineation’s internal security posture while also serving as a strategic voice with customers, partners, and the broader market.

The right leader understands traditional enterprise security deeply, but is energized by the security problems that traditional controls were never designed to solve: agent identity, delegated permissions, runtime tool use, autonomous actions, dynamic data movement, and cross-system accountability.

• Help define Lineation’s point of view on securing autonomous and semi-autonomous AI systems.
• Translate emerging threats involving agent identity, permissions, tool access, model behavior, data movement, and autonomous actions into practical security strategies and product priorities.
• Develop security principles for how AI agents should be governed in enterprise environments, including default-deny approaches for high-risk actions and clear override paths.
• Anticipate where enterprise AI security is going, not simply where it is today.

Partner closely with Engineering and Product to ensure security is part of how the platform is designed, not a layer added afterward.

• Provide leadership across AI agent identity and authentication.
• Guide runtime security and policy enforcement design.
• Shape authorization and least-privilege access models.
• Influence secure connectors and integrations.
• Oversee secrets and credential management practices.
• Strengthen data protection, isolation, and governance architecture.
• Drive logging, observability, and auditable lineage.
• Lead threat modeling and secure development practices.
• Own cloud and infrastructure security across modern SaaS and cloud-native environments.

• Own the security strategy for Lineation’s cloud infrastructure, services, environments, and deployment architecture.
• Guide decisions around secure cloud configuration, workload isolation, identity boundaries, network controls, secrets handling, resilience, and incident containment.
• Partner with platform and engineering teams to embed secure-by-default patterns into cloud operations and deployment workflows.
• Evaluate cloud risk in the context of AI-native workloads, third-party model providers, data processors, and enterprise integrations.

• Establish Lineation’s approach to data governance across customer data, telemetry, audit logs, model inputs and outputs, and operational metadata.
• Define policies…