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Nesco Resource

Network Security Specialist Engineer

Nesco Resource, Dallas, Texas, United States, 75215

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Nesco Data Center & Infrastructure is seeking a skilled Network Specialist who can operate within a Project Based Environment, travel to project sites, and see through the Network Objectives.

Position Summary We are seeking a highly capable

Contract Network Security Engineer

to join a specialized

Operational Technology (OT) Security team

led by our client. This team is charged with deploying cutting-edge cybersecurity solutions across critical OT sites nationwide. The role requires deep expertise in Cisco security technologies, hands-on implementation in industrial environments, and a commitment to extensive U.S. travel.

Key Responsibilities As a vital member of the OT Security team, you will:

Travel to OT sites across the U.S. to execute hands-on network security deployments.

Design and implement

Cisco Firepower Threat Defense (FTD)

appliances in transparent and routed modes for OT/IT network segmentation.

Deploy and configure

Meraki switches

to enforce VLAN segmentation, replacing unmanaged OT switches.

Conduct routing and failover testing and troubleshooting using

SD-WAN

solutions in conjunction with Cisco Firepower.

Support rack-and-stack activities and assist with Access Point (AP) replacements at various sites.

Perform ad-hoc OT security assessments based on onsite observations and risks.

Create and maintain low-level design documentation and implementation reports.

Collaborate with onsite personnel and internal engineering teams to ensure successful and efficient deployment with minimal disruption.

Required Qualifications

Proven experience deploying and configuring:

Cisco Firepower Threat Defense (FTD)

in transparent and routed modes.

Meraki switches

for VLAN and network segmentation.

Familiarity with

SD-WAN

architectures and routing/failover scenarios.

Hands-on experience in

Operational Technology

environments, such as manufacturing or critical infrastructure.

Excellent troubleshooting, documentation, and clear communication skills.

Willingness and ability to travel 100% within the U.S., including extended onsite assignments.

Preferred Qualifications

Certifications such as CISSP, GICSP, Cisco Security, or ISA/IEC 62443.

Knowledge of IEC 62443 and NIST Cybersecurity Framework in OT environments.

Experience with wireless infrastructure/AP deployments.

Familiarity with physical security controls in industrial settings.

Work Environment

Field-based role

across industrial sites in the U.S.

PPE

and safety training will be provided to ensure compliance with all safety regulations. Pay Range: $30-$35 / hour

Nesco Resource offers a comprehensive benefits package for our associates, which includes a MEC (Minimum Essential Coverage) plan that encompasses Medical, Vision, Dental, 401K, and EAP (Employee Assistance Program) services. Nesco Resource provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.

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