Network Security Engineer

Valiant Solutions

. Configure and support Cisco Firepower/ASA and Palo Alto Networks firewalls .

Posted 4/21/2026full-timeRemote • 🇺🇸 United StatesMid-LevelSenior💰 $130,000 - $145,000 per yearWebsite

Tech Stack

Tools & technologies

AWSCloudDNSFirewallsLinuxSwitching

About the role

Key responsibilities & impact

Configure and support Cisco Firepower/ASA and Palo Alto Networks firewalls
This includes administration, patching, upgrades, rule maintenance, policy updates, performance, and security posture tuning
Troubleshoot complex network connectivity issues involving multiple firewalls, load balancers, and VPN devices, extending the network to the AWS cloud
Troubleshoot Dual Stacked (IPv4 and IPv6) security infrastructure that includes DNS, Firewalls, Cisco ACI, and AWS Cloud
Keep detailed records of customer interaction and problem resolution in a ticketing system
Monitor network traffic, analyze logs, and respond to security incidents and threats
Provide support for internal and external customers in a large enterprise environment
Collaborate with cross-functional teams and support projects as part of the Security team
Manage hardware and software inventories
Support vulnerability assessments and implement remediation strategies
Work with remote teams to install, maintain, and troubleshoot security hardware
Ensure customers receive top-of-the-line support in a polite and courteous manner
Develop standard operating procedures and network topology documentations
Participate in a rotating on-call schedule providing support after hours as required

Requirements

What you’ll need

5+ years of experience working with Cisco Firepower and Palo Alto Networks firewalls
Bachelor's degree in Computer Science, Information Systems, Mathematics, Engineering, related degree, or an additional two (2) years of relevant experience
Candidates must have experience with high-availability firewall configuration and deployment experience in a remote environment
Equally comfortable with GUI and command line access
5+ years of solid networking experience (Routing & Switching)
The successful candidate will have experience working in a mid to large environment and be able to work with minimal supervision
Equally comfortable using Linux and Microsoft Windows operating systems
Candidates must have experience in troubleshooting complex issues involving multiple devices and network connectivity, traversing them
Candidates must understand fundamentally how devices work, potential issues due to misconfiguration, and the impact of the devices on support mission-related services and overall security posture
Troubleshoot complex connectivity issues involving multiple firewalls, IPS, load balancers, and VPN devices
Tune IDS/IPS signature

Benefits

Comp & perks

Valiant pays 99% of the Medical, Dental, and Vision Coverage for Full-time Employees
Valiant contributes 25% towards Health Coverage for Family and Dependents
100% Paid Short Term Disability and Life Insurance Policy for Full-time Employees
100% Paid Certifications
401K Matching up to 4%
Paid Time Off
Paid Federal Holidays
Wellness & Fitness Program
Valiant University – Online Education and Training Portal
FSA programs for: Medical Costs, Dependent Care, Transit, and Parking
Referral Bonuses

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

Cisco FirepowerPalo Alto Networks firewallsnetwork connectivity troubleshootinghigh-availability firewall configurationRoutingSwitchingLinuxMicrosoft WindowsIDS/IPS tuningvulnerability assessments

Soft Skills

customer supportcollaborationproblem resolutioncommunicationattention to detailindependencepolitenesscourtesydocumentationteamwork