# Staff Security Engineer

**Company:** [Topaz Labs](https://hotfix.jobs/companies/topaz-labs)
**Location:** Dallas, TX
**Role:** Security Engineering
**Experience:** 7+ years
**Skills:** AWS, IAM, Vpc, Jamf, Active Directory, Linux, Firewalls, Vpns, Penetration Testing, Python, Bash, Soc Ii, Vanta, Network Security, Gpu Clusters
**Posted:** 2025-11-24

> Owns security for hybrid infrastructure including AWS cloud, on-premise GPU clusters, and corporate endpoints. Conducts penetration testing, secures AI models, and manages identity/tools like Jamf and Active Directory. Requires 7+ years hands-on security experience.

## Job Description

## Responsibilities

- Secure hybrid infrastructure (AWS & colo): configure firewalls, manage physical network security, harden Linux GPU clusters.
- Manage corporate & endpoint security: oversee macOS fleet with Jamf, identity management via Active Directory.
- Conduct hands-on penetration testing on internal networks, office infrastructure, and AI applications.
- Secure AI supply chain: protect model weights during training, storage, and delivery.

## Requirements

- 7+ years in security engineering (infrastructure, corporate IT, offensive security).
- Deep experience with AWS security (IAM, VPC), compliance (SOC II, Vanta).
- Expert in Jamf for macOS and Active Directory for identity.
- Physical & network security: firewalls, VPNs, switching in offices/colos.
- Manual penetration testing (network, web app).
- Proficiency in Python/Bash scripting.

## Nice-to-Haves

- Experience securing on-device software/desktop apps (Windows/macOS).

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