Network Security Engineer

Verizon•Southlake, TX

9d•$81,000 - $155,000•Hybrid

About The Position

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 video and multimedia distribution networks (Digital Advertising, Interactive Media, IPTV, CDN) and a passion for securing the foundation of our global connectivity, this is where you make your biggest impact.

Requirements

Bachelor’s degree or four or more years of relevant work experience.
Three 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.

Nice To Haves

Security and Networking Certifications/Knowledge: Security certifications (e.g., CompTIA Security+, CCSP, CISSP, OSCP) and networking certifications (e.g., Palo Alto PCNSE, Cisco CCNP, or CCNA, Ciena CRS, Juniper JNCIE).
Core Network and Systems Expertise: Experience with networking (especially Internet-related protocols), UNIX or Linux systems engineering expertise, and knowledge of network-based, system-level, and application-layer attacks.
Vulnerability Management and Scanning: Ability to configure and interpret network scans using tools such as Tenable Nessus, Qualys, Rapid7 InsightVM, or OpenVAS. Ability to interpret CVSS scores and prioritize risk.
Security Appliances and Encryption: Experience with Firewalls, VPNs, IDS/IPS, DDoS mitigation, and encryption for data in transit (e.g., IPsec, or TLS) and at rest.
Data Analysis and Advanced Analytics: Hands-on experience working with internet-scale data sets (Netflow, BGP, DNS, and IDS logs), and knowledge of statistics, data visualization, anomaly detection, machine learning, and system administration, including big data analytical tools like Elasticsearch and SQL/NoSQL technologies.

Responsibilities

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.

Benefits

Verizon is committed to maintaining a Total Rewards package which is competitive, valued by our employees, and differentiates us as an Employer of Choice.
We are a ‘pay for performance’ company and your contribution is rewarded through competitive salaries and performance-based incentives.
We create an opportunity for us all to share in the success of Verizon and the value we help to create through this broad-based discretionary equity award program.
Your benefits are market competitive and delivered by some of the best providers.
You are provided with a full spectrum of health and wellbeing resources, including a first in-class Employee Assistance Program, to empower you to make positive health decisions.
We offer generous paid time off benefits to help you manage your work life balance and opportunities for flexible working arrangements.
Verizon provides training and development for all levels, to help you enhance your skills and develop your career, from funding towards education assistance, award-winning training, online development tools and access to industry research.
You will be able to take part in volunteering opportunities as part of our environmental, community and sustainability commitment.
Your benefits package will vary depending on the country in which you work subject to business approval.
We also offer a matched 401(k) savings plan, up to 8 company paid holidays per year and up to 6 personal days per year, paid parental leave, adoption assistance and tuition assistance, plus other incentives, we’ve got you covered with our award-winning total rewards package.
From health and wellness benefit options including: 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.