Sr. Network Engineer

R.J. Corman Railroad Group; Nicholasville (KY); On-site; USD 80,000 - 100,000; Full time

Benefits offered by this job

Medical, Dental, Vision insurance

401K retirement savings plan

Paid time off

Employee Assistance Program

Job summary

A leading transportation company is seeking an experienced network professional in Nicholasville, Kentucky. The role involves supporting and maintaining network environments, troubleshooting connectivity issues, and managing network security policies. Candidates must have over 10 years of experience in enterprise network environments, particularly with Cisco ISE and Umbrella. The position offers comprehensive benefits, including medical insurance and paid time off, in a dynamic and solution-oriented setting.

Qualifications

• 10+ years of experience supporting enterprise network environments.
• Hands-on experience with Cisco ISE, Umbrella, and SmartNet.
• Strong troubleshooting skills in operational environments.

Responsibilities

• Support and maintain corporate and field network environments.
• Troubleshoot and resolve connectivity issues.
• Maintain clear documentation and follow change management practices.

Skills

Cisco ISE

Cisco Umbrella

Troubleshooting

Vendor Relations

Azure Networking

Fiber and Wired Network Infrastructure

Tools

Cisco SmartNet

Cradlepoint Devices

Job description

• 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.
• 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.
• 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 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.
• 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

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)
• Voluntary life insurance, voluntary short-term disability, voluntary long term disability, voluntary accident insurance, voluntary hospital indemnity insurance
• Voluntary identity theft protection
• Paid maternity leave
• 8 paid holidays
• Paid time off (accrual starts day one of employment)
• Employee Assistance Program
• 401K retirement savings plan
• 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.

Equal Opportunity Employer

This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.