Network Engineer II - Cisco

Job-ID: 54828Category: Information Systems TechnologyLocation: Jacksonville, FL, United StatesWorkplace: On-siteSchedule: Full timePosted: 2026-10-29Closes: 2026-11-13Relocation Assistance Provided: YesTax Status: Railroad Retirement TaxesOvertime Status: ExemptJob SummaryDesigns, implements, and supports, enterprise network and network security infrastructure. Serves as a technical leader for routing, switching, firewall, segmentation, and secure connectivity initiatives with a primary focus on Cisco networking technologies and Fortinet security platforms. Works closely with Architecture, Infrastructure, Security Operations, and business stakeholders to ensure highly available, scalable, and secure network services. Provides technical leadership for network modernization, operational support, and troubleshooting. Applicants will be required to engage in ongoing background checks throughout the duration of this position with continued passing results.Primary Activities and ResponsibilitiesDesign, implement, and support enterprise network infrastructure including routing, switching, wireless, and WAN technologies.Configure, maintain, and troubleshoot Fortinet security solutions including FortiGate firewalls, VPNs, and security policies.Design and implement secure network architectures and segmentation strategies to protect critical business and operational environments.Lead network and network security projects from planning and design through deployment and operational support.Configure and support Cisco routing and switching platforms in campus, datacenter, and remote site environments.Support software-defined networking and SD-WAN technologies to improve connectivity, performance, and resiliency.Investigate and resolve complex network and security incidents impacting business operations.Perform capacity planning and recommend improvements for network performance, reliability, and scalability.Develop and maintain network standards, diagrams, configuration templates, and operational documentation.Collaborate with cybersecurity teams to implement and maintain network security controls and best practices.Participate in change management, incident management, and problem management activities.Support cloud and hybrid connectivity initiatives, including secure integration with public cloud services.Evaluate emerging networking and security technologies and provide recommendations for adoption.Coordinate infrastructure upgrades, hardware refreshes, software updates, and lifecycle management activities.Work with vendors, service providers, and internal stakeholders to ensure successful delivery of services.Provide technical mentoring and guidance to junior engineers and operations personnel.Participate in an on-call rotation and provide escalation support for critical network and security events.Ensure network configurations comply with company security standards and regulatory requirements.Develop and report operational metrics related to network availability, performance, and security.Partner with infrastructure and cybersecurity teams to develop and implement Zero Trust strategies.Minimum QualificationsBachelor's Degree/4-Year Degree5 or more years of experience supporting enterprise network infrastructureExperience with Cisco routing and switching technologiesFamiliarity with administering firewall platforms in a production enterprise environmentExperience troubleshooting Layer 2 and Layer 3 network issuesExperience supporting WAN, VPN, and remote connectivity solutionsEquivalent Minimum QualificationsHigh School Diploma/GED10+ years of enterprise networking experienceDemonstrated expertise in routing, switching, and firewall administrationPreferred QualificationsBachelor's Degree in Information Technology, Computer Science, Engineering, or related field8+ years of enterprise networking and network security experienceExperience with Fortinet FortiGate firewallsExperience supporting large-scale WAN, SD-WAN, datacenter, and cloud connectivity environmentsExperience implementing network segmentation and Zero Trust security principlesCisco CCNP Enterprise, CCNP Security, or equivalent certificationFortinet certification (FCF, FCP, FCSS, or equivalent)Experience supporting operational technology (OT) or industrial networking environmentsKnowledge and SkillsStrong knowledge of Cisco enterprise networking technologies, including routing, switching, WAN, SD-WAN, wireless networking, and network protocols such as BGP, OSPF, EIGRP, VLANs, STP, HSRP, and QoS.Working knowledge of enterprise firewall and network security technologies, including VPNs, network segmentation, security policy management, intrusion prevention, and secure remote access; Fortinet experience preferred.Understanding of enterprise network security principles, Zero Trust architectures, cloud networking, network monitoring platforms, and identity-based access control solutions.Ability to troubleshoot complex network and firewall issues, develop technical standards and documentation, manage multiple priorities, and effectively communicate with technical and non-technical stakeholders.Strong analytical, problem-solving, and leadership skills with the ability to support mission-critical network infrastructure while driving strategic technology initiatives.Job RequirementsParticipation in a rotating on-call support scheduleWork hours may vary to support maintenance windows, outages, and project implementationsOccasional travel for site assessments, deployments, and project supportAbout the company CSX is passionate about building a workforce that reflects the values and behaviors of ONE CSX. We are nationally recognized for our commitment to diversity and engagement, as well as our support for veterans and reservists. CSX, based in Jacksonville, Florida, is a premier transportation company. It provides rail, intermodal and rail-to-truck transload services and solutions to customers across a broad array of markets, including energy, industrial, construction, agricultural, and consumer products. For nearly 200 years, CSX has played a critical role in the nation's economic expansion and industrial development. Its network connects every major metropolitan area in the eastern United States, where nearly two-thirds of the nation's population resides. It also links more than 230 short-line railroads and more than 70 ocean, river and lake ports with major population centers and farming towns alike. More information about CSX Corporation and its subsidiaries is available at Connect with us on FacebookXLinkedInInstagramYouTubeClosing Statement At CSX, two of our six Guiding Principles are Valuing and Developing Employees as well as Operating Safely. We are committed to offering our team members the most competitive compensation and benefits package available, unlimited opportunities for development and growth throughout an exciting and rewarding career, and the safest work environment possible. CSX is an Equal Opportunity Employer Veterans/Disabled. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, or protected veteran status and will not be discriminated against on the basis of disability. Click here to view the EEO is Law poster. CSX Transportation and its subsidiaries are not seeking outside assistance or accepting unsolicited resumes from staffing agencies or search firms for employment or contractor opportunities. Any resumes submitted by an outside vendor to any employee at CSX via e-mail, Internet, or directly to hiring managers without a valid written search agreement in place with the Talent Acquisition / HR department will be deemed the sole property of CSX. No placement fee will be paid in the event a candidate is hired as a result of the referral, or through other means. This role offers an annual salary range based on experience and qualifications. In addition to base salary we provide an annual bonus opportunity. At CSX, we prioritize valuing and developing employees, as well as operating safely. We are committed to offering our team members competitive compensation, a comprehensive benefits package, and unlimited growth opportunities. Our benefits support financial, physical, emotional, and social well-being, with health plans, wellness programs, and customizable coverage options. Learn more about our benefits here.