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# Senior Cybersecurity Engineer

- **Company:** Tandym Tech
- **Location:** Carrollton, TX, United States
- **Experience:** Expert
- **Contract:** Contract
- **Skills:** Microsoft Windows, Active Directory, Systems Engineering, Catalyst (Software), Cyber Security, Computer Networks, System Configuration, Hyper-V, Network Security, Windows Servers, Security Information and Event Management, Virtual Local Area Networks, Virtualization Technology, Computer Networking Systems, Firewalls (Computer Science), Splunk, Cisco, Vulnerability Analysis, Vmware
- **Published:** November 7, 2026
- **Apply:** https://www.dice.com/job-detail/c00ee548-39e1-4e58-9057-977b41bc1713

## About the Role

* 5+ years of Cybersecurity, Network Engineering, Systems Engineering, or related experience
 * Strong experience with Cisco networking, including Catalyst 9300 switches, VLANs, ports, segmentation, and network traffic
 * Hands-on experience with Cisco and Palo Alto firewalls
 * Experience supporting VMware and/or Hyper-V virtualized environments
 * Strong Windows systems engineering experience, including Windows Server, workstations, Active Directory, and Group Policy
 * Experience with vulnerability analysis, patching, system hardening, and secure configuration
 * Knowledge of systems engineering methodologies, including the V-Model and requirements-driven design, integration, and testing
 * Must be authorized to work in the United States

Desired Skills:

 * Experience with Splunk or another enterprise SIEM and security-monitoring platform
 * Experience supporting cybersecurity solutions in nuclear, critical infrastructure, industrial, or similarly regulated environments
 * Experience migrating virtualized environments from VMware to Hyper-V
 * Ability to independently lead projects from requirements and architecture through implementation, testing, and deployment

## Description

A professional services organization in Carrollton, Texas is seeking a Senior Cybersecurity Engineer to support the delivery of secure command-and-control systems for critical infrastructure environments., * Provide hands-on cybersecurity and systems engineering support for command-and-control solutions within nuclear and critical infrastructure environments.

 * Design, configure, and support Cisco network environments, including Catalyst 9300 switches, field and access switches, VLANs, ports, segmentation, and network traffic.
 * Configure and maintain Cisco and Palo Alto firewalls and other network security technologies.
 * Support virtualized environments, including the transition from VMware to Hyper-V.
 * Engineer and maintain Windows Server and workstation environments, Active Directory, and Group Policy.
 * Perform vulnerability analysis, patching, cybersecurity hardening, and secure system configuration.
 * Support SIEM and security-monitoring activities using Splunk.
 * Apply V-Model systems engineering principles across requirements, design, implementation, integration, testing, and deployment.
 * Own projects from requirements and architecture through build, testing, and deployment.
 * Work directly with customers to understand technical requirements and deliver secure solutions.
 * Travel occasionally to nuclear and customer sites across North America, with expenses covered.