Security Engineer, Offensive Security

Responsibilities

• Build Fluidstack’s offensive security program, including its methodology, tooling, and engagement cadence.
• Run red team and purple team operations that emulate advanced threat actors across cloud infrastructure, endpoints, and bare metal deployments.
• Penetration test tenant isolation, bare metal GPU hosts, firmware, BMCs, and data center operational technology.
• Develop AI-specific attack scenarios involving agentic systems and other novel AI-enabled risks.
• Contribute to AI-assisted offensive testing tools and workflows.
• Present clear, actionable findings to technical and executive audiences to shape the security roadmap.

Requirements

• Years of hands-on experience in red teaming and offensive security operations.
• Deep expertise in at least two of macOS, Linux, AWS, GCP, Azure, Kubernetes, or CI/CD pipelines.
• Experience finding novel attack paths and chaining vulnerabilities into full compromise.
• Experience running adversary simulations against well-defended environments.
• Ability to write quality code in Python, Go, or similar languages.
• Experience writing findings that drive remediation and risk prioritization.
• Experience working closely with blue teams.
• Preferred experience includes state-nexus threat models, frontier AI or critical infrastructure security, testing AI and ML systems, detection engineering, SIEM, EDR, firmware, BMC, OT/ICS, and AI safety and security.

Benefits

• Fluidstack states that it is committed to pay equity and transparency.
• Fluidstack is an Equal Employment Opportunity Employer.