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
• Able to travel as needed
  
  

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

Full-Time Team Members

• Immediate Eligibility Starting Day One of Employment:
• Veteran’s Day is a Paid Holiday for US Veterans
• Medical, Dental, Vision Insurance
• PTO (Paid Time Off) Accrual
• 8 Paid Holidays Per Year
• Voluntary Supplemental Life Insurance
• Voluntary Short and Long-Term Disability
• Voluntary Accident Insurance
• FSA and HSA Options
• 401K Employer Match
• Paid Maternity Leave
• Group Life Insurance
  

All Team Members

• 401K Retirement Savings Plan
• Referral Bonuses
• Employee Discounts from Various Suppliers
• Employee Assistance Program
• Annual Boot Voucher
• Company Provided PPE
• Prescription Safety Glasses Allowance
  
  

R. J. Corman Railroad is an Equal Employment Opportunity (EEO) 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.