Senior Network Security Engineer

Valiant Technologies LLC; Austin (TX); On-site; USD 89,000 - 126,000; Full time

Job summary

Valiant Technologies LLC in Austin, TX seeks a Senior Network Security Engineer to lead the design, implementation, and optimization of enterprise perimeter and infrastructure security across on-premises and multi-cloud environments. The role requires 11+ years in cybersecurity engineering and strong leadership within security projects.

Responsibilities include configuring Palo Alto firewalls, managing WAF/IDS/IPS/VPN/NAC, and automating security operations with Python/PowerShell/Bash.

Qualifications

• 11+ years of dedicated cybersecurity engineering experience.
• Strong enterprise network and firewall security background.
• Bachelor's degree in Cybersecurity, Computer Science, IT, Engineering, or a related field.

Responsibilities

• Design, configure, maintain, and optimize enterprise Palo Alto firewalls.
• Manage perimeter security platforms, WAF, IDS/IPS, VPN, and NAC.
• Implement secure network architectures across on-premises, AWS, and Azure environments.
• Monitor security events, perform threat hunting, and investigate network security incidents.
• Conduct security assessments and ensure compliance with industry standards.
• Automate security operations using Python, PowerShell, or Bash.
• Maintain network diagrams, technical documentation, runbooks, and SOPs.
• Lead cross-functional security projects and mentor junior engineers.
• Participate in maintenance windows, after-hours implementations, and emergency incident response.

Skills

Palo Alto Firewalls

Network Security

Security Technologies

Cloud Security

Automation

Security Frameworks

Technical Leadership

Education

Bachelor's degree in Cybersecurity/CS/IT/Engineering

Job description

US Citizen, Green Card, H-1B, OPT-EAD, CPT, Other

Senior Network Security Engineer - Austin, TX

Duration: 12 Months + Extension

Bill Rate: $78/hour

Job Type: W-2, 1099, C2C

Client: To Be Discussed Later

Work Authorization: US-Citizen, H-1B, OPT-EAD, GC-EAD

Job Description

Senior Network Security Engineer to lead the design, implementation, and optimization of enterprise perimeter and infrastructure security across on-premises and multi-cloud environments.

Mandatory Technical Skills

• Palo Alto Networks Firewalls: Advanced hands-on administration, configuration, rule management, troubleshooting, and optimization.
• Network Security: TCP/IP, routing, switching, VPN, WAN/LAN, and perimeter defense.
• Security Technologies: WAF, IDS/IPS, SIEM, EDR, DLP, CASB, and NAC.
• Cloud Security: Hands-on experience securing AWS and Microsoft Azure environments.
• Automation: Python, PowerShell, or Bash scripting.
• Security Frameworks: NIST, CIS Controls, PCI-DSS, HIPAA, and ISO 27001.
• Technical Leadership: Ability to lead security initiatives, guide project teams, and mentor junior engineers.

Key Responsibilities

• Design, configure, maintain, and optimize enterprise Palo Alto firewalls.
• Manage perimeter security platforms, WAF, IDS/IPS, VPN, and NAC.
• Implement secure network architectures across on-premises, AWS, and Azure environments.
• Monitor security events, perform threat hunting, and investigate network security incidents.
• Conduct security assessments and ensure compliance with industry standards.
• Automate security operations using Python, PowerShell, or Bash.
• Maintain network diagrams, technical documentation, runbooks, and SOPs.
• Lead cross-functional security projects and mentor junior engineers.
• Participate in maintenance windows, after-hours implementations, and emergency incident response.

Experience & Education

• 11+ years of dedicated cybersecurity engineering experience.
• Strong enterprise network and firewall security background.
• Bachelor's degree in Cybersecurity, Computer Science, IT, Engineering, or a related field.

Preferred Qualifications

• Certifications: PCNSE, CISSP, CCNP Security, GIAC, CEH, or Security+.
• SOC experience.
• Zero Trust security architecture experience.
• Cloud-native security tools.
• Master's degree in Cybersecurity, IT, or a related field.

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.