Senior Network Security Engineer - Hybrid Dallas HQ
HybridDallas, Texas, United States
Job Summary
Design and maintain network security solutions across on-premises, Microsoft Azure, and hybrid environments, managing enterprise firewalls and Network Access Control (NAC) platforms. Troubleshoot complex connectivity and security challenges involving routing, switching, DNS, and VPNs while automating processes through scripting and APIs. Collaborate with Network Engineering, Security Operations, and Cloud teams to enforce security policies, support segmentation initiatives, and lead incident response and root cause analysis. Mentor fellow engineers and create comprehensive technical documentation including runbooks and implementation guides.
Required Qualifications
- 5+ years of experience in network security, network engineering, security engineering, or infrastructure security
- Hands-on experience managing enterprise firewall environments, including security policies, VPNs, NAT, segmentation, traffic inspection, and troubleshooting
- Experience supporting Network Access Control (NAC) solutions across wired, wireless, VPN, or remote access environments
- Experience working in hybrid environments that include on-premises infrastructure and Microsoft Azure
- Strong understanding of networking fundamentals, including TCP/IP, routing, switching, DNS, DHCP, VPNs, authentication, certificates, HTTP, TLS, and identity-based access controls
- Strong troubleshooting skills across Layers 2 through 7, with the ability to diagnose and resolve complex network and security issues
- Experience using scripting and APIs to automate tasks and improve operational efficiency
- Strong documentation skills with the ability to create clear technical standards, diagrams, and implementation guides
- Excellent communication skills with the ability to explain technical concepts to both technical and non-technical audiences
- Ability to balance security, business needs, and operational stability while managing multiple priorities
- Self-motivated with strong attention to detail and the ability to work independently and collaboratively
- Experience mentoring engineers and helping build a strong technical team
Desired Qualifications
- Professional certifications such as GIAC/SANS, CCNP Security, PCNSE, Fortinet NSE, or Azure networking/security certifications are a plus
- Experience working in regulated environments or with security frameworks such as CIS Controls, SOX, GLBA, or FFIEC is a plus
- Experience with enterprise firewall and NAC platforms, particularly Palo Alto Networks and Fortinet technologies, is strongly preferred
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