[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All CSX jobs](https://jobs.opennash.com/companies/csx/) · [Search jobs](/search/) CSX · Jacksonville, FL # Network Engineer II - Cisco Jacksonville, FL, United States On-site Full-time IT & Infrastructure Listed on CSX’s official careers site. Posted October 29, 2026. Check that it is still open and apply there. [Apply on CSX’s careers site →](https://fa-eowa-saasfaprod1.fa.ocs.oraclecloud.com/hcmUI/CandidateExperience/en/sites/CSXCareers/job/54828) [OpenNash Jobs](https://jobs.opennash.com/) / [CSX](https://jobs.opennash.com/companies/csx/) / Network Engineer II - Cisco ## Job description ### Job Summary Designs, 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 Responsibilities Design, 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 Qualifications Bachelor's Degree/4-Year Degree 5 or more years of experience supporting enterprise network infrastructure Experience with Cisco routing and switching technologies Familiarity with administering firewall platforms in a production enterprise environment Experience troubleshooting Layer 2 and Layer 3 network issues Experience supporting WAN, VPN, and remote connectivity solutions Equivalent High School Diploma/GED 10+ years of enterprise networking experience Demonstrated expertise in routing, switching, and firewall administration ### Preferred Qualifications - Bachelor's Degree in Information Technology, Computer Science, Engineering, or related field - 8+ years of enterprise networking and network security experience Experience with Fortinet FortiGate firewalls Experience supporting large-scale WAN, SD-WAN, datacenter, and cloud connectivity environments Experience implementing network segmentation and Zero Trust security principles Cisco CCNP Enterprise, CCNP Security, or equivalent certification Fortinet certification (FCF, FCP, FCSS, or equivalent) Experience supporting operational technology (OT) or industrial networking environments - Knowledge and Skills - Strong 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 Requirements Participation in a rotating on-call support schedule Work hours may vary to support maintenance windows, outages, and project implementations Occasional travel for site assessments, deployments, and project support ## At a glance - Posted by the employer: Oct 29, 2026 - First seen by OpenNash: Nov 1, 2026 - Last checked: Nov 1, 2026 - Listed for: 3 days - Location: Jacksonville, FL, United States - Work arrangement: On-site - Employment type: Full-time[Apply on CSX’s careers site →](https://fa-eowa-saasfaprod1.fa.ocs.oraclecloud.com/hcmUI/CandidateExperience/en/sites/CSXCareers/job/54828) ## Hiring at CSX - Open jobs: 80 - New in the last 7 days: After two weekly collections - Tracked since: Oct 11, 2026 [All CSX jobs](https://jobs.opennash.com/companies/csx/) · [Weekly hiring report](/reports/hiring/) ## More jobs at CSX ### [Internal Audit Internship – Summer 2027 (IT Audit, Internal Controls/SOX)](https://jobs.opennash.com/companies/csx/jobs/7212c625652d60aed633/) Jacksonville, FL, United States ### [Accounting Internship - Summer 2027 (Paid)](https://jobs.opennash.com/companies/csx/jobs/81d90b28fdc9f2f078f2/) Jacksonville, FL, United States ### [Commercial Leadership Development Associate (Sales & Marketing)](https://jobs.opennash.com/companies/csx/jobs/29af015a3a37b971c95b/) Jacksonville, FL, United States ### [Customer Solutions Leadership Development Associate (Sales & Marketing)](https://jobs.opennash.com/companies/csx/jobs/d6621ca7532290d9e002/) Jacksonville, FL, United States ### [Customer Solutions Specialist](https://jobs.opennash.com/companies/csx/jobs/573c9026dec71b28de23/) Jacksonville, FL, United States ## Similar jobs at other companies ### [Network and Video Engineer (CISCO)](https://jobs.opennash.com/companies/bae-systems/jobs/6c348a2676467f9d2b11/) BAE Systems · Herndon, Virginia, United States ### [Lead Network Engineer (Cisco, Cloud & Network Automation)](https://jobs.opennash.com/companies/t-rowe-price/jobs/2ccef7460b475e5b43ae/) T Rowe Price · Owings Mills, MD ### [Sr. Network Engineer (Cisco, Cloud & Network Automation)](https://jobs.opennash.com/companies/t-rowe-price/jobs/90a196c0b11e5daff5dc/) T Rowe Price · Owings Mills, MD ### [Cisco ISE Network Engineer](https://jobs.opennash.com/companies/cdw/jobs/4c6b00ba0a49e11a63af/) CDW · Washington D.C. - VA ### [General Utility Worker I - Cisco - Santana Row - JLL](https://jobs.opennash.com/companies/aramark/jobs/9e0ab40fb963f70f914f/) Aramark · San Jose, CA, US OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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