Sr. Network Engineer

• Support and maintain corporate and field network environments across:
  • Railroad offices, terminals, shops, and yards
  • Remote and mobile locations supporting rail operations
• Troubleshoot and resolve network connectivity issues impacting operational systems, dispatching, safety, and business functions.
• Serve as an escalation point for complex network incidents and outages.

• Administer and support Cisco ISE for:
  • User and device authentication (RADIUS/TACACS+)
  • Wired and wireless access control
  • Integration with Active Directory and security policies
• Troubleshoot access issues affecting office staff, field devices, and railroad operational systems.
• Manage Cisco Umbrella DNS-layer security policies to protect users and devices from malicious or unauthorized internet activity.
• Work with the Security team to:
  • Review alerts and reports
  • Adjust policies to balance security with railroad operational needs
• Support roaming users and remote locations using Umbrella-based protection.

• Support and coordinate fiber and structured cabling infrastructure across railroad facilities, including:
  • MDF/IDF closets at yards, terminals, and offices
  • Patch panels, switches, cabling documentation, and labeling
• Coordinate with contractors and vendors for fiber installs, repairs, and testing.
• Ensure facilities meet basic network standards for uptime and safety.
• Support networking components related to Azure-hosted applications and services, including:
  • Site-to-site VPNs
  • Secure connectivity between on-prem locations and Azure
• Assist with troubleshooting connectivity issues affecting cloud-based railroad systems.
• Deploy, configure, and support Cradlepoint LTE/5G devices used for:
  • Remote sites
  • Temporary locations
  • Backup connectivity for critical railroad operations
• Monitor connectivity, performance, and reliability of cellular network solutions.
• Manage vendor relationships and support cases for network equipment.
• Open and coordinate Cisco Smart Net tickets, hardware replacements (RMA), and support escalations.
• Assist with hardware lifecycle planning and refresh coordination.

• Maintain clear, practical documentation including:
  • Network diagrams
  • IP address tracking
  • Site connectivity details
  • Basic troubleshooting and support procedures
• Follow and contribute to change management practices to minimize operational risk.
• Work closely with:
  • IT Infrastructure
  • Cybersecurity
  • Field Operations
  • Railroad leadership and site contacts
• Mentor junior team members and provide guidance on standard network practices.
• Communicate clearly during outages or changes that impact railroad operations.

• 10+ years of experience supporting enterprise network environments.
• Hands-on experience with:
  • Cisco ISE
  • Cisco Umbrella
  • Cisco Smart Net support processes
  • Fiber and wired network infrastructure
  • Azure networking (basic to intermediate)
  • Cradlepoint or cellular WAN devices
• Strong troubleshooting skills in real-world operational environments.
• Ability to support business-critical systems where uptime and safety are priorities.
• Comfortable working with vendors, contractors, and internal teams.

• Experience supporting industrial, transportation, railroad, or field operations environments
  .
• Cisco and/or Azure certifications (or equivalent experience).
• Familiarity with:
  • Remote site networking
  • Backup and failover connectivity
  • ITIL or structured IT support practices

• Practical, solutions-oriented mindset
• Strong sense of ownership and reliability
• Able to balance security with operational needs
• Clear communicator with technical and non-technical users
• Comfortable working in both office and railroad field environments

Able to travel as needed

R.J. Corman Railroad Group, LLC is committed to providing its full-time employees and their families with quality benefits. R.J. Corman offers the following:

• Medical, Dental, Vision insurance ( immediate eligibility starting day one of employment)
• Voluntary life insurance, voluntary short-term disability, voluntary long term disability, voluntary accident insurance, voluntary hospital indemnity insurance
• Voluntary identity…