Senior Cybersecurity Engineer

Carrollton

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. ***\*\*Please no 3rd Parties as this is W2 only\*\**** **About the Opportunity:** * **Schedule:** Monday to Friday * **Hours:** Standard business * **Setting:** On-site **Responsibilities:** * 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. **Qualifications:** * 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