Senior Network Security Defense Engineer

Verizon

. Own the security lifecycle and effectiveness across the Core, Edge, and Access networks .

Posted 5/7/2026full-timeNew Jersey, North Carolina, Texas, Virginia • 🇺🇸 United StatesSenior💰 $101,000 - $194,000 per yearWebsite

Tech Stack

Tools & technologies

Splunk

About the role

Key responsibilities & impact

Own the security lifecycle and effectiveness across the Core, Edge, and Access networks
Advance security posture through real-time Threat Monitoring & Detection using SIEM tools like Splunk
Lead Incident Response efforts during a breach
Manage the continuous Vulnerability Management lifecycle across networks and applications
Define and implement robust Security Architecture, including centralized Identity & Access Management, and Multi-Factor Authentication (MFA)
Identify technology gaps to lead in the design, architecture, and implementation of appropriate security solutions
Create formal guidelines, policies, and procedures to ensure smooth and error-free operations
Partner across the Operations, Engineering, and Planning organizations to ensure secure design patterns are embedded into new deployments and major changes

Requirements

What you’ll need

Bachelor’s degree or four or more years of work experience
Four or more years of relevant experience required, demonstrated through work experience and/or military experience
Ability to write complex, optimized Splunk SPL (Search Processing Language) searches, including macros, data models, and lookups for efficient threat hunting and investigation.
Knowledge of incident response lifecycles (NIST or SANS) with experience designing, testing, and maintaining automation playbooks using SOAR platforms to automate triage and response actions.
Proficiency in the continuous, rigorous process of reviewing and remediating vulnerabilities based on the Common Vulnerabilities and Exposures (CVE) database and CISA's Known Exploited Vulnerabilities (KEV) catalog.
Experience with risk-based alerting, managing notable events, asset/identity correlation, and defining/tuning correlation searches.
Strong analytical skills and attention to detail with a proven track record of managing and delivering results.

Benefits

Comp & perks

medical, dental, vision, short and long term disability, basic life insurance, supplemental life insurance, AD&D insurance, identity theft protection, pet insurance and group home & auto insurance
matched 401(k) savings plan
up to 8 company paid holidays per year
up to 6 personal days per year
paid parental leave
adoption assistance
tuition assistance

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Threat MonitoringThreat DetectionSIEMSplunkIncident ResponseVulnerability ManagementSecurity ArchitectureIdentity & Access ManagementMulti-Factor AuthenticationSplunk SPL

Soft Skills

analytical skillsattention to detailleadershipcommunicationcollaboration