Senior System Network Administrator

6 days ago

Jacksonville, 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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