Senior Red Team Security Engineer – AI Frontiers

Fluidstack; San Francisco (CA); On-site; USD 180,000 - 280,000; Full time

Job summary

Fluidstack is seeking a high-impact security professional to build and lead our offensive security program in San Francisco. You will perform red and purple team operations across cloud, endpoints, and bare metal deployments, testing critical systems and AI-enabled workflows.

You will collaborate with engineering and security teams, write automation in Python/Go, and present actionable risk to leadership. This role offers a fast-paced, high-ownership environment.

Qualifications

• Hands-on experience in red teaming and offensive security operations.
• Expertise in at least two of macOS, Linux, cloud (AWS, GCP, Azure), Kubernetes.
• Ability to chain vulnerabilities into full compromise through novel attack paths.
• Experience running adversary simulations against well-defended environments.
• Proficient in writing quality code in Python, Go, or similar languages.

Responsibilities

• Build Fluidstack's offensive security program from the ground up, including its methodology and tooling.
• Run red and purple team operations emulating advanced threat actors across our cloud infrastructure, endpoints and bare metal deployments.
• Pen test critical systems, including tenant isolation, GPUs, firmware and BMCs, and data center OT.
• Collaborate with security and engineering teams on AI-specific attack scenarios.
• Contribute to AI-assisted offensive testing tools and workflows.
• Present findings to technical and executive audiences with clear, actionable risk.
• Operate on the bleeding edge of AI-enabled offensive activities inside and outside our environments.

Skills

Red team operations

Offensive security

Adversary simulations

macOS

Linux

Kubernetes

CI/CD pipelines

Python

Go

Blue team collaboration

Tools

Python

Go

AWS

GCP

Azure

Job description

Fluidstack is seeking a high-impact security professional to build and lead our offensive security program in San Francisco. You will perform red and purple team operations across cloud, endpoints, and bare metal deployments, testing critical systems and AI-enabled workflows.

You will collaborate with engineering and security teams, write automation in Python/Go, and present actionable risk to leadership. This role offers a fast-paced, high-ownership environment.