Network Engineer II - Cisco

CSX; Jacksonville (FL); On-site; USD 110,000 - 140,000; Full time

Job summary

CSX is seeking a senior network and security engineer to design and support enterprise-grade networking infrastructure across campus, data center, and remote sites. You will lead Cisco routing/switching initiatives and Fortinet security deployments, ensuring highly available connectivity and strong security posture.

You will collaborate with Architecture, Infrastructure, and Security Operations, participate in on-call support, and mentor junior staff while driving Zero Trust and cloud

Qualifications

• Bachelor's degree and 5+ years of experience in 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.

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 environments.
• Lead network and network security projects from planning through deployment and support.
• Configure and support Cisco routing and switching platforms in campus, datacenter, and remote site environments.
• Support SD-WAN technologies to improve connectivity, performance, and resiliency.
• Investigate and resolve complex network and security incidents impacting business operations.
• Develop and maintain network standards, diagrams, and operational documentation.
• Collaborate with cybersecurity teams to implement network security controls and best practices.

Skills

Cisco routing

Cisco switching

Fortinet firewall

WAN/VPN

Zero Trust

Security policy

Education

Bachelor's Degree

High School Diploma

Tools

Fortinet FortiGate

Cisco IOS

Job description

JOB DESCRIPTION

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.

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 Minimum Qualifications

• 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

About Us

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 www.csx.com. Connect with us on Facebook X LinkedIn Instagram YouTube

Closing Statement

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. 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.