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.