Engineer III, Security Engineer
Ashburn, Loudoun County, Virginia, 22011, USA
Listed on 2026-07-18
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IT/Tech
Cybersecurity, Systems Engineer
When you join Verizon, you’ll be part of a team that shares ideas freely and thrives on innovation. Verizon powers people’s lives by connecting them to what brings them joy.
What You’ll Be DoingThe GN&T Network Security team is looking for an experienced Engineer to join the Network Security Defense team. The Defense teams own the security lifecycle across the Core, Edge, and Access networks, as well as all systems and network functions within GN&T. This role is on the Management Network Defense team and focuses on defending against sophisticated state‑sponsored and criminal actors.
- Lead Security Improvements:
Drive the identification of security gaps and lead the design, architecture, and implementation of appropriate security solutions. - Collaborative Design:
Partner across Operations, Engineering, and Planning to ensure secure design patterns are embedded into new deployments and major changes. - Strategic Problem Solving:
Work with lead engineers on strategic security technical challenges and complex investigations. - Security Assessments:
Perform regular security control assessments to validate configuration effectiveness and close gaps discovered during active hunts. - Technical Communication:
Articulate complex technical concepts clearly to diverse internal and external audiences and develop essential technical documentation such as playbooks, Confluence pages, network diagrams, and Method of Procedures (MOPs).
This hybrid role requires you to be within commuting distance of one of the listed office locations. You’ll work from home and spend a minimum of three days per week in the office, as directed by your manager.
What We’re Looking For- Bachelor’s degree or three or more years of relevant work experience in network security or a related field.
- Deep understanding of network fundamentals (TCP/IP, DNS), the OSI model, and router operations, including distinction between Control Plane, Data Plane, and Management Plane security.
- Knowledge of routing protocols (BGP, OSPF, IS‑IS) and how to protect them from hijacking or manipulation.
- Experience analyzing Net Flow/IPFIX data to distinguish between legitimate traffic and malicious patterns.
- Experience supporting, configuring, and troubleshooting network equipment from major telecommunications vendors such as Cisco, F5, Arista, Juniper, or Palo Alto.
- Experience with scripting languages like Python, Power Shell, Perl, and/or automation tools in a network environment.
- Demonstrated organization and project management skills, including proactive ownership of network investigations and collaboration with peer engineers to resolve complex issues or incidents.
- Effective written and verbal communication skills for cross‑functional collaboration.
- Willingness to hold a flexible schedule to meet business security needs, including work during maintenance windows.
- Advanced Splunk
Skills:
Ability to write complex, optimized SPL, including data models, lookups, and dashboards for threat analysis. - AI Tooling:
Experience utilizing Claude Code or other AI tools for script and configuration authoring. - Certifications:
Security (CISSP, CISM, OSCP, Security+) or Networking (PCNSE, CCNP, CCNA). - Internet‑Scale Data:
Hands‑on experience with Net Flow, BGP, DNS, and IDS logs at scale. - Incident Frameworks:
Fluency in security frameworks, particularly CIS Benchmarks and MITRE ATT&CK TTPs on network devices. - Advanced Analytics:
Experience with risk‑based alerting, asset/identity correlation, and big data tools like Elasticsearch. - System Engineering:
Unix or Linux expertise and experience with encryption (IPsec, TLS) and DDoS mitigation. - Security Tooling:
Experience with EDR tools such as Crowd Strike or threat investigation tools such as NETSCOUT OCI.
Our benefits cover health, wellness, life insurance, dental, vision, disability, identity theft protection, pet insurance, group auto insurance, a matched 401(k) plan, paid holidays, personal days, parental leave, adoption assistance, tuition assistance, and other incentives. Compensation may include overtime, shift differential, holiday pay, allowances, and premium pay where applicable. The annual salary range for this role varies by location and experience: $81,000.00 – $.
EqualEmployment Opportunity
Verizon is an equal opportunity employer. We evaluate qualified applicants without regard to veteran status, disability or other legally protected characteristics.
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