Senior System Network Administrator

6 days ago

Jacksonville FL, United States iT Resource Solutions.net,inc Full time

Knowledge of: • Enterprise network and security architecture, including design principles for high availability, segmentation, and zero-trust models. • Cisco networking and security platforms (e.g., Catalyst, Nexus, ASA, Firepower, ISE) and advanced routing protocols (EIGRP, OSPF, BGP, STP). • Palo Alto Networks technologies including NGFWs, Panorama, GlobalProtect, and threat prevention capabilities. • F5 BIG-IP systems including LTM, ASM, APM, and iRules for secure application delivery and traffic management. • Aviatrix multi-cloud networking and security architecture, including transit gateways, segmentation, encryption, and policy enforcement across AWS, Azure, and GCP. • Voice and unified communications protocols including UDP, RTP, RTCP, and QoS strategies. • Network and security performance monitoring tools (e.g., SolarWinds, Splunk, SecureX, Cortex XDR) and log analysis for threat detection and optimization. • Distributed computing and hybrid cloud environments, and their impact on secure network design and performance. • Operating system commands and utilities (Linux, Windows, CLI, PowerShell, Bash) for diagnostics, automation, and integration. Skill in: • Leading the design, deployment, and optimization of secure, scalable network and security infrastructure across data center, cloud, and remote environments. • Architecting integrated solutions using Cisco, Palo Alto, F5, and Aviatrix technologies to meet business and compliance requirements. • Conducting security assessments, risk analysis, and remediation planning for complex network environments. • Collaborating with cross-functional teams and clients to translate business needs into secure, high-performing technical solutions. • Troubleshooting complex, multi-layered network and security issues and performing root cause analysis. • Automating network and security configurations using scripting and infrastructure-as-code tools (e.g., Ansible, Terraform, Python). • Managing vendor relationships and guiding procurement decisions based on technical and strategic requirements. • Applying structured change management processes to ensure secure and compliant infrastructure evolution. • Testing and validating hardware/software for new deployments, upgrades, and security compliance. • Developing and maintaining detailed documentation, architecture diagrams, and operational runbooks. OPEN REQUIREMENTS: Bachelor of Science (BS) degree in Computer Science or related discipline and four (4) yrs of professional experience in a network administration role in a large corporate environment -OR- Eight (8) year combination of education, training and experience in installing, supporting, and maintaining network systems in a large corporate environment.

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