Senior System Network Administrator

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.