Operational Technology Network Administrator

3 weeks ago


Pilot Point, Texas, United States Dexian Full time

Job Title: Operational Technology Network Administrator

Job Summary:

Dexian is seeking a skilled and proactive Contract Operational Technology (OT) Network Administrator to oversee and maintain the network infrastructure within our Operational Technology (OT) environment.

This role requires a deep understanding of industrial network architecture and cybersecurity, as well as experience with enterprise-level networking products.

The ideal candidate will be responsible for managing and supporting our industrial networks, which include Cisco IE-3300 and 9300 switches, Palo Alto firewalls, Claroty cybersecurity tools, and wireless solutions from Cambium and TropOS.

Key Responsibilities:

  • Configure, manage, and troubleshoot Cisco IE-3300 and Catalyst 9300 switches within an OT network.
  • Implement, configure, and monitor Palo Alto firewalls to secure network traffic and enforce security policies across OT systems.
  • Deploy, manage, and monitor OT security tools such as Claroty CTD and SRA for threat detection and secure remote access.
  • Ensure compliance with cybersecurity standards.
  • Support the integration and management of Microsoft Azure services into the OT network for cloud-based applications and infrastructure.
  • Participate in network incident response and troubleshooting, ensuring minimal downtime and rapid recovery for OT operations.
  • Maintain detailed records of network configurations, security protocols, and compliance measures.

Requirements:

  • Cisco Certified Network Associate (CCNA) or Cisco Certified Industrial Network Specialist (CCINS), Palo Alto Networks Certified Cybersecurity Associate (PCCSA) or higher.
  • Bachelor's degree in information technology, Computer Science, or a related field (or equivalent work experience).
  • Minimum 5 years of experience working as a network administrator in an OT or industrial environment.
  • Familiarity with SolarWinds for network monitoring and performance analysis.
  • Experience with Carbon Black Application Control for endpoint security.
  • Knowledge of Microsoft Azure for cloud integration within an OT environment.
  • Knowledge of OT network security frameworks such as IEC-62443.
  • Familiarity with SCADA systems and real-time industrial control environments.
  • Experience in hybrid IT/OT environments and a solid understanding of security best practices.

About Dexian:

Dexian is a leading provider of staffing, IT, and workforce solutions with over 12,000 employees and 70 locations worldwide.

As one of the largest IT staffing companies and the 2nd largest minority-owned staffing company in the U.S., Dexian's platform connects talent, technology, and organizations to produce game-changing results that help everyone achieve their ambitions and goals.

Dexian is an Equal Opportunity Employer that recruits and hires qualified candidates without regard to race, religion, sex, sexual orientation, gender identity, age, national origin, ancestry, citizenship, disability, or veteran status.



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