Senior Network Security Engineer
On-site · Dallas, Texas, United States
Job Summary
Senior Network Security Engineer responsible for designing and maintaining the network security infrastructure across on-premises and cloud environments within NMC2, including firewalls, IDS/IPS, and VPNs. Contributes to the design, development, and delivery of scalable network security architecture, standards, policies, and technical documentation; acts as subject matter expert and mentor to junior engineers; collaborates with cross-functional teams to ensure security requirements are addressed in projects. Requires 7+ years of hands-on network security experience, strong knowledge of TCP/UDP, OSI model, hybrid on-premises and cloud deployments (AWS/Azure/GCP), and proficiency with security monitoring tools and SIEM; familiarity with NIST, CIS Benchmarks, and ISO 27001; prior experience with automation and process improvements is valued.
Required Qualifications
- 7+ years of experience in network security engineering
- Hands-on experience across trusted, untrusted, and DMZ environments
- Experience securing both on-premises and cloud network environments (AWS, Azure, or GCP)
- Experience designing and securing network environments across both on-premises and cloud platforms (AWS, Azure, or GCP)
- Experience with security monitoring tools and SIEM platforms
- Strong understanding of security frameworks and hardening standards such as NIST, CIS Benchmarks, or ISO 27001
- Effective communication skills for technical decisions to peers and leadership
- Preferred certifications such as CCNP Security, PCNSE, CISSP or equivalent
- Experience with VxLAN EVPN data center architecture
- Background in SOC operations or working with MSSPs
- Firewall automation experience
- Must be legally authorized to work in the United States without employer sponsorship
Desired Qualifications
- CCNP Security
- PCNSE
- CISSP
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