Sr. Network Engineer

Network Operations & SupportSupport and maintain corporate and field network environments across:Railroad offices, terminals, shops, and yardsRemote and mobile locations supporting rail operationsTroubleshoot 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 ControlAdminister and support Cisco ISE for:User and device authentication (RADIUS/TACACS+)Wired and wireless access controlIntegration with Active Directory and security policiesTroubleshoot access issues affecting office staff, field devices, and railroad operational systems.Cisco Umbrella & Network SecurityManage 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 reportsAdjust policies to balance security with railroad operational needsSupport roaming users and remote locations using Umbrella-based protection.Fiber & Physical Network InfrastructureSupport and coordinate fiber and structured cabling infrastructure across railroad facilities, including:MDF/IDF closets at yards, terminals, and officesPatch panels, switches, cabling documentation, and labelingCoordinate with contractors and vendors for fiber installs, repairs, and testing.Ensure facilities meet basic network standards for uptime and safety.Azure & Hybrid ConnectivitySupport networking components related to Azure-hosted applications and services, including:Site-to-site VPNsSecure connectivity between on-prem locations and AzureAssist with troubleshooting connectivity issues affecting cloud-based railroad systems.Cradlepoint & Cellular ConnectivityDeploy, configure, and support Cradlepoint LTE/5G devices used for:Remote sitesTemporary locationsBackup connectivity for critical railroad operationsMonitor connectivity, performance, and reliability of cellular network solutions.Vendor Support & Cisco SmartNetManage 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 & StandardsMaintain clear, practical documentation including:Network diagramsIP address trackingSite connectivity detailsBasic troubleshooting and support proceduresFollow and contribute to change management practices to minimize operational risk.Collaboration & LeadershipWork closely with:IT InfrastructureCybersecurityField OperationsRailroad leadership and site contactsMentor junior team members and provide guidance on standard network practices.Communicate clearly during outages or changes that impact railroad operations.Required Qualifications10+ years of experience supporting enterprise network environments.Hands-on experience with: Cisco ISECisco UmbrellaCisco SmartNet support processesFiber and wired network infrastructureAzure networking (basic to intermediate)Cradlepoint or cellular WAN devicesStrong 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 QualificationsExperience supporting industrial, transportation, railroad, or field operations environments.Cisco and/or Azure certifications (or equivalent experience).Familiarity with: Remote site networkingBackup and failover connectivityITIL or structured IT support practicesKey Traits for Success at R.J. CormanPractical, solutions-oriented mindsetStrong sense of ownership and reliabilityAble to balance security with operational needsClear communicator with technical and non-technical usersComfortable working in both office and railroad field environmentsAble to travel as neededBenefitsR.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 VeteransMedical, Dental, Vision InsurancePTO (Paid Time Off) Accrual8 Paid Holidays Per YearVoluntary Supplemental Life InsuranceVoluntary Short and Long-Term DisabilityVoluntary Accident InsuranceFSA and HSA Options401K Employer MatchPaid Maternity LeaveGroup Life InsuranceAll Team Members:401K Retirement Savings PlanReferral BonusesEmployee Discounts from Various SuppliersEmployee Assistance ProgramAnnual Boot VoucherCompany Provided PPEPrescription Safety Glasses AllowanceR. 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.