Sr. Network Engineer

Key Responsibilities

Network Operations & Support

• 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.

Cisco ISE & Network Access Control

• 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.

Cisco Umbrella & Network Security

• 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.

Fiber & Physical Network Infrastructure

• 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.

Azure & Hybrid Connectivity

• 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.

Cradlepoint & Cellular Connectivity

• 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.

Vendor Support & Cisco SmartNet

• Manage vendor relationships and support cases for network equipment.


• Open and coordinate Cisco SmartNet tickets, hardware replacements (RMA), and support escalations.


• Assist with hardware lifecycle planning and refresh coordination.

Documentation & Standards

• 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.

Collaboration & Leadership

• 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.

Required Qualifications

• 10+ years of experience supporting enterprise network environments.


• Hands-on experience with:
  
  
  
  • Cisco ISE
  
  
  • Cisco Umbrella
  
  
  • Cisco SmartNet 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.

Preferred Qualifications

• 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
  
  
  
  

Key Traits for Success at R.J. Corman

• 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


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  Able to travel as needed

  
  

Benefits: 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)


• Company paid life insurance


• Voluntary life insurance, voluntary short-term disability, voluntary long term disability, voluntary accident insurance, voluntary hospital indemnity insurance


• Voluntary identity theft protection


• Flexible spending account benefits


• Paid maternity leave


• 8 paid holidays


• Paid time off (accrual starts day one of employment)


• Employee Assistance Program


• 401K retirement savings plan


• Work boot allowance


• Employee referral program


• Annual tickets to My Old KY Dinner Train

R.J. Corman Railroad is an Equal Employment Opportunity (EEO) and Affirmative Action employer that is committed to a safe and drug free workplace. R.J. Corman performs pre-employment criminal background checks and substance abuse testing which includes a urine drug test to detect the presence of illegal drugs. We appreciate your cooperation in keeping R.J. Corman a safe and drug free company.