Network Security Senior Engineer

Overview

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 - driving innovation, creativity, and impact in the world.

Our V Team is a community of people who anticipate, lead, and believe that listening is where learning begins. In crisis and in celebration, we come together - lifting our communities and building trust in how we show up, everywhere & always. Want in? Join the #VTeamLife.

The Global Network & Technology - Network Security team is seeking 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.

This is your chance to command and execute the complete security lifecycle for our mission-critical network assets, from Optical Transport to cutting-edge carrier-class equipment. We're looking for an expert with deep, hands-on expertise in next-gen firewalls (Juniper, F5, Cisco), SIEM powerhouses, and centralized IAM solutions. You won't just implement defenses-you'll own the security scorecard, proactively hunt threats, and master the entire vulnerability lifecycle.

Your expertise will be crucial in pioneering robust incident response protocols, and you'll be the driving force behind powerful Python automation and dynamic Splunk dashboards that transform raw data into a crystal-clear security vision. If you have specialized knowledge in high-speed optical networks (NGPON/XGS, IPTV, CDN) and a passion for securing the foundation of our global connectivity, this is where you make your biggest impact.

• Identify technology gaps to lead in the design, architecture, and implementation of appropriate security solutions.
• Partner across the Operations, Engineering, and Planning organizations to ensure secure design patterns are embedded into new deployments and major changes.
• Work independently on multiple technical initiatives.
• Communicate clearly and effectively, articulating complex technical concepts to diverse internal and external audiences.
• Serve as escalation support for security-related investigations, providing expert-level analysis and guidance during active incidents.
• Act as the security lead in network design reviews, ensuring that the Network assets meet stringent carrier-grade security standards.
• Execute root cause analysis and produce clear incident reports outlining timeline, impact, evidence, and remediation recommendations.
• Conduct proactive threat hunting across the identity, endpoint, and network telemetry to uncover adversary behavior and reduce dwell time.
• 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.
• Perform regular security control assessments, validating configuration effectiveness, and closing gaps discovered during incidents or hunts.

You must have...

• Bachelor's degree or four or more years of relevant work experience.
• Four or more years of relevant work experience, demonstrated through one or a combination of work and/or military experience, or specialized training.
• Familiarity with Identity and Access Management (IAM) solutions.
• Strong working knowledge of incident response frameworks and methodologies like NIST 800-61 and MITRE ATT&CK.
• Expert-level ability to write complex, optimized SPL (Splunk Search Language) searches, including macros, data models, and lookups for efficient threat hunting and investigation.
• Experience in developing, testing, and maintaining automation playbooks using Python/API integrations and Splunk SOAR (Security Orchestration, Automation, and Response) to automate triage and response actions.

• Security and Networking Certifications/Knowledge:
  Security…