Eng III, Network Security Engineer

at Verizon in Rolling Meadows, Illinois, United States Job Description When you join Verizon You want more out of a career. A place to share your ideas freely

• even if they're daring or different. Where the true you can learn, grow, and thrive. At Verizon, we power and empower how people live, work and play by connecting them to what brings them joy. We do what we love
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Want in? Join the #VTeamLife. What you'll be doing... The GN&T Network Security team is looking for a highly motivated and experienced Cybersecurity Engineer to join the Network Security Defense team. The Defense teams are responsible for owning the security lifecycle and effectiveness across the Core, Edge, and Access networks, as well as all systems and network functions within GN&T. In this role, you will be critical in advancing our security posture through real-time Threat Monitoring & Detection using SIEM tools like Splunk, leading Incident Response efforts during a breach, and managing the continuous Vulnerability Management lifecycle across networks and applications. The position also requires expertise in defining and implementing robust Security Architecture, including firewalls, encryption, centralized Identity and Access Management, and Multi-Factor Authentication (MFA). A strong candidate will also possess advanced Threat Hunting skills, including Advanced Networking & Protocol Analysis, Endpoint & Memory Forensics, Data Science & Querying, and demonstrable experience in Automation & Scripting to enhance our Cybersecurity tooling.

Key Responsibilities:

Support the identification of technology gaps in the design, architecture, and implementation of appropriate security solutions. Maintain formal guidelines, policies, and procedures to ensure smooth and error-free operations. Create and tune threat detections using SIEM (Security Information and Event Management) to improve alert fidelity and reduce false positives Drive continuous improvement of network visibility and telemetry collection to strengthen detection and response capabilities Support network security incident response activities, including triage, containment, eradication, and recovery for disruptive threats Maintain and refine incident playbooks and response runbooks, ensuring repeatable workflows for high-impact scenarios (ransomware, phishing, insider threat, DDoS, etc.) Serve as a support engineer for security-related investigations, providing analysis and input during active incidents Support root cause analysis and produce clear incident reports outlining timeline, impact, evidence, and remediation recommendations Explore proactive threat hunting across the identity, endpoint,and network telemetry to uncover adversary behavior and reduce dwell time Familiar with threat detections using SIEM (Security Information and Event Management) to improve alert fidelity and reduce false positives Work on continuous improvement of network visibility and telemetry collection to strengthen detection and response capabilities Perform regular security control assessments, validating configuration effectiveness and closing gaps discovered during incidents or hunts Communicate clearly and effectively, articulate complex technical concepts to diverse internal and external audiences. Where you'll be working... In this hybrid role, you'll have a defined work location that includes work from home and assigned office days in one of the offices listed for this position. In order to be eligible to apply for this position, you must be within commuting distance of one of those locations. What we're looking for... You must have... Bachelor's degree or 3 or more years of relevant work experience, demonstrated through one or a combination of work and/or military experience, or specialized training. Experience with 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) and experience with automation playbooks using SOAR platforms to automate triage and response actions. Experience with risk-based alerting, managing notable events, asset/identity correlation, and defining/tuning correlation searches. Ability to work both independently and in collaboration with cross-functional teams. Strong analytical skills and attention to detail. Effective written, interpersonal, and verbal communication... For full info follow application link. Equal Employment Opportunity Verizon is an equal opportunity employer. We evaluate qualified applicants without regard to veteran status, disability or other legally protected characteristics. To view full details and how to apply, please login or create a Job Seeker account