Principal Network Security Engineer

Overview

The Principal Network & Security Engineer is responsible for the management, lifecycle operations, and security of the organization’s Cisco-based networking infrastructure. This role leads the administration, configuration, monitoring, and ongoing optimization of core network systems and platforms, applying best practices in security management across hybrid cloud and on-premises environments.

• Administer, monitor, and optimize Cisco portfolio infrastructure, including firewalls, identity, and network analytics platforms.
• Execute routine software/firmware upgrades, patching, and configuration updates on network and security appliances.
• Ensure effective network segmentation and secure access by configuring and enforcing network access controls.
• Manage and maintain secure remote access solutions for users and devices.
• Deploy, configure, and tune next-generation network perimeter and detection tools to ensure consistent policy enforcement.
• Oversee application delivery and web application security solutions, assisting with WAF configuration and incident response.
• Monitor network telemetry and activity for anomalous behavior or security events.
• Respond to and investigate network, security, or operational incidents in both on-premises and cloud environments.
• Support DDoS and threat protection systems, maintaining readiness and reporting suspicious activity.
• Collaborate with infrastructure and app teams to design and implement secure, compliant architectures across cloud and datacenter.
• Participate in vulnerability management processes, remediating identified exposures across managed platforms.
• Contribute to security operations, including event and log analysis, and improving detection capabilities.
• Develop and maintain infrastructure documentation, runbooks, and operational standards.
• Enable automation for repeatable network and security processes using scripting and modern tools.
• Provide technical guidance and mentoring to junior staff on security best practices and platform operations.
• Other duties as assigned

• Bachelor’s degree in computer science, Engineering, or related field.
• Minimum 7 years of experience with enterprise networking and security, with significant hands-on Cisco platform management.
• Strong understanding of network firewalls, perimeter defense, and intrusion detection/prevention.
• Direct experience configuring and troubleshooting network access control systems and policies.
• Familiarity with cloud platform security fundamentals (AWS, Azure, or GCP) in hybrid enterprise environments.
• Practical knowledge of software, firmware, and patch management for large-scale infrastructure.
• Proficiency in troubleshooting layer 2/3 networking, VPNs, and secure remote access solutions.
• Experience with application delivery controllers and web application security.
• Ability to analyze network/endpoint telemetry and investigate security events or performance issues.
• Demonstrated skills using scripting or automation to streamline network/security management.
• Hands-on experience supporting vulnerability management and compliance requirements.
• High attention to detail, documentation, and change management practices.
• Excellent communication, collaboration, and mentoring skills.
• Willingness to stay current on evolving security threats and industry best practices.
• Relevant certifications (e.g., CCNP Security, CISSP, cloud security, or equivalent) are strongly preferred

Please note that sponsorship of new applicants for employment authorization, or any other immigration-related support, is not available for this position at this time.

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