Senior Network Security Engineer – Enterprise Core Network

Blueface Ltd; Philadelphia (Philadelphia County); On-site; USD 117,171 - 175,758; Full time

Benefits offered by this job

Benefits

Career development

Job summary

Comcast is seeking a Senior Network Security Engineer to own the security posture across core network domains and platforms. You will lead vulnerability remediation, patch validation, and secure configuration rollout in collaboration with architecture, engineering, and compliance teams.

The role supports PCI-DSS, SOC 2, and regulatory reviews, with security by design principles. You will work with Cisco, Juniper, Arista, Nokia, F5, and Fortinet technologies, ensuring production readiness and

Qualifications

• Bachelor's degree or equivalent in CS/IT/Cybersecurity.
• 5+ years of network security engineering or related work.
• Hands-on experience with enterprise network environments.
• Experience with PCI-DSS, SOC 2 and related audits.
• Knowledge of CIS Benchmarks, NIST, or similar guidance.
• Scripting/automation with Python, Ansible, or similar tools.

Responsibilities

• Own the security posture and execution roadmap for network domains and platforms.
• Lead vulnerability remediation, risk mitigation, and patch validation.
• Validate secure releases and configurations in lab environments before production.
• Enforce secure configurations across platforms using standards and tools.
• Support audit readiness and evidence collection for compliance.
• Develop and publish network security standards aligned with policy.

Skills

Network security

Vulnerability remediation

Patch validation

Configuration hardening

PCI-DSS compliance

SOC 2

Education

Bachelor's degree in CS/IT/Cybersecurity

Tools

Cisco

Juniper

Arista

Nokia

F5

Fortinet

Job description

Comcast is seeking a Senior Network Security Engineer to own the security posture across core network domains and platforms. You will lead vulnerability remediation, patch validation, and secure configuration rollout in collaboration with architecture, engineering, and compliance teams.

The role supports PCI-DSS, SOC 2, and regulatory reviews, with security by design principles. You will work with Cisco, Juniper, Arista, Nokia, F5, and Fortinet technologies, ensuring production readiness and