Sr. Network Engineer

Sr. Network Engineer

Job Category: Professional Requisition Number: SRNET001859

Location: Nicholasville, KY 40356, USA

Job Details

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, 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 and 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, and 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, and 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.

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.