Senior Network Security Engineer

NBCUniversal

Senior Network Security Engineer executing and advancing security posture of Comcast's core network platforms. Leading vulnerability remediation and risk mitigation activities with collaboration across teams.

Posted 7/20/2026full-timeWest Chester • New Jersey, Pennsylvania • 🇺🇸 United StatesSenior💰 $117,171 - $175,757 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in network security engineering, including vulnerability remediation, compliance support, and secure configuration management across various network platforms. Proficient in implementing security standards and conducting risk assessments to ensure continuous compliance and operational readiness.

Highest-signal resume keywords

Network Security EngineeringVulnerability RemediationCompliance Support (PCI-DSS, SOC 2)Network Platforms (Cisco, Juniper, Arista)Routing and Switching Technologies

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Network Security EngineeringVulnerability RemediationConfiguration HardeningRisk MitigationRouting TechnologiesSwitching TechnologiesTCP/IPDNSBGPMPLS

Soft Skills

TroubleshootingDocumentationCommunicationCross-Functional Collaboration

Tools & Technologies

AAATACACS+RADIUSPKI/CertificatesIDS/IPSFirewallsVPNsNetwork Monitoring ToolsConfiguration Management ToolsCompliance Validation Tools

Industry Keywords

PCI-DSSSOC 2NISTCIS ControlsCybersecurity PolicyCISA Hardening Guidance

Tech Stack

Tools & technologies

Cyber SecurityDNSFirewallsSwitchingTCP/IP

About the role

Key responsibilities & impact

Own the security posture and execution roadmap for Comcast network domains and platforms such as Cisco, Juniper, Arista, Nokia, F5, Fortinet etc.
Lead vulnerability remediation, risk mitigation, and patch validation activities for critical vulnerabilities, and vendor security advisories.
Validate secure software releases, compensating controls, and configuration changes in lab environments before production implementation, including security review, bug scrub, test case validation, and certification support.
Drive secure configuration rollout and compliance enforcement across supported platforms using approved network security standards, audit tooling, ticketing workflows, and remediation tracking.
Support audit readiness and closure for PCI, CGA, SOC 2, and internal compliance reviews by validating controls, documenting remediation plans, and coordinating evidence collection.
Configure, test, and operationalize new network security solutions and services, including secure authentication & authorization, certificate-based access, secure monitoring, secure logging, and access restrictions.
Develop, review, and publish network security and resiliency standards that align with Comcast Cybersecurity Policy, CISA hardening guidance, regulatory expectations, and secure-by-design principles.
Maintain continuous compliance by monitoring secure controls, reviewing audit results, validating configuration drift, coordinating remediation with platform teams, and helping define policy checks in network audit and compliance tools.
Review network functions, features, software, hardware, and engineering designs to identify security risks, required mitigations, operational impacts, and production readiness requirements.
Perform security assessments of network platforms and services to identify threats, vulnerabilities, exposed services, insecure protocols, weak authentication methods, access control gaps, and hardening opportunities.
Partner with cross functional organizations/teams such as cybersecurity, architecture, network engineering, operations, and vendor teams to implement least-privilege access, improve auditability, and detect unauthorized or anomalous network changes.
Engage vendors to resolve product security issues, validate hardened releases, influence secure-by-default capabilities, and ensure vendor solutions align with Comcast network security requirements.
Assist with disaster recovery, technical continuity, incident response preparation, and after-action reviews for network security events, production exposures, and audit findings.
Improve team execution by documenting standards, test results, remediation playbooks, operational handoffs, technical decisions, and lessons learned.
Track execution progress, risks, blockers, and metrics across remediation initiatives, ensuring work is visible, measurable, and traceable through approved systems of record.

Requirements

What you’ll need

Bachelor's Degree in Computer Science, Information Technology, Cybersecurity, Network Engineering, or a related field; or equivalent combination of education and experience.
5+ years of experience in Network Engineering, Network Security Engineering, Infrastructure Security, or related technical disciplines.
3+ years of hands-on experience securing and supporting enterprise or service provider network environments.
Experience with network platforms and technologies including Cisco, Juniper, Arista, Nokia, F5, Fortinet, or equivalent networking technologies.
Hands-on experience with routing and switching technologies.
Experience performing network vulnerability remediation, security patch validation, configuration hardening, and risk mitigation activities.
Strong understanding of networking fundamentals including routing, switching, TCP/IP, DNS, DHCP, BGP, OSPF, MPLS, and network segmentation.
Knowledge of network security technologies including AAA, TACACS+, RADIUS, PKI/certificates, access control, IDS/IPS, firewalls, VPNs, and secure management protocols.
Experience supporting compliance and audit activities associated with PCI-DSS, SOC 2, NIST, CIS Controls, or similar security frameworks.
Experience analyzing vendor security advisories, CVEs, software vulnerabilities, and remediation strategies.
Familiarity with network monitoring, logging, configuration management, and compliance validation tools.
Experience working within change management, incident management, and operational support processes.
Strong troubleshooting, documentation, communication, and cross-functional collaboration skills.

Benefits

Comp & perks

Health insurance
401(k) matching
Flexible work hours
Paid time off
Remote work options