Security Engineer – Offensive Security
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Security Architect, AI Infrastructure
FluidStack
Posted: 10/21/2026Security Engineer – Offensive Security
FluidStackCore Competencies
Role fitCore Competencies
Use this summary to align your resume positioning with the role.
Demonstrates expertise in building and executing offensive security programs, including red teaming and adversary simulations, while effectively communicating actionable findings to technical and executive stakeholders. Proficient in leveraging AI technologies and methodologies to enhance security operations across diverse environments.
Highest-signal resume keywords
Red TeamingOffensive Security OperationsPython ProgrammingCloud Security (AWS, GCP, Azure)Adversary Simulation
Tech Stack
Tools & technologiesAbout the role
Key responsibilities & impact- Build Fluidstack's offensive security program from the ground up, including methodology, tooling, and engagement cadence
- Run red and purple team operations emulating advanced threat actors across cloud infrastructure, endpoints, and bare metal deployments
- Pen test critical systems, including tenant isolation, bare metal GPU hosts, firmware and BMCs, and data center OT
- Partner with security and engineering teams on AI-specific attack scenarios, including agentic systems and novel AI-enabled risks
- Contribute to AI-assisted offensive testing tools and workflows
- Present findings to technical and executive audiences as clear, actionable risk that shapes the security roadmap
- Conduct AI-enabled offensive operations inside and outside Fluidstack environments
- Operate with autonomy, urgency, first-principles reasoning, and high intensity while building civilization-scale AI compute infrastructure
Requirements
What you’ll need- Years of hands-on experience in red teaming and offensive security operations
- Deep expertise in at least two of: macOS, Linux, cloud (AWS, GCP, Azure), Kubernetes, 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
- Ability to write findings that get fixed and help teams prioritize risk
- Experience working closely with blue teams
- Authorization to work in the United States
- Willingness to work in person; Fluidstack states it is not a remote position
- Bonus experience with state-nexus threat models, frontier AI, government, critical infrastructure, AI/ML systems, agentic workflows, model serving, detection engineering, SIEM, EDR, firmware, BMC, OT/ICS, and AI safety/security
Benefits
Comp & perks- Equity for all full time roles
- Benefits package
- Meaningful equity / restricted stock units may be included in total compensation
- Compensation discussions welcomed
- Flexible office location options, including San Francisco, New York, Austin, Seattle, and U.S. Remote
ATS Keywords
✓ Tailor your resumeApplicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills
Penetration TestingVulnerability ChainingAI-Assisted Testing ToolsKubernetesCI/CD PipelinesLinuxMacOSFirmwareBMCOT/ICS
Soft Skills
AutonomyUrgencyFirst-Principles ReasoningClear Communication
Tools & Technologies
SIEMEDRAI/ML SystemsAgentic WorkflowsModel Serving
Industry Keywords
Critical InfrastructureState-Nexus Threat ModelsFrontier AIDetection EngineeringGovernment