Senior Network Security Engineer

This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Network Security Engineer in United States.

This role sits at the core of enterprise cybersecurity operations, focusing on securing large-scale, dual-stack (IPv4/IPv6) network environments across hybrid cloud and on-premises infrastructure. You will work on advanced security systems including firewalls, DNS, VPNs, AWS environments, and Zero Trust architectures to protect mission-critical government and enterprise networks. The environment is highly technical and fast-paced, requiring strong problem-solving skills and the ability to independently diagnose and resolve complex connectivity and security issues. You will collaborate with cross-functional engineering teams while also operating autonomously on operational and project-based assignments. This is a hands-on engineering role where you will directly impact security posture, resilience, and performance of large-scale infrastructures. It is ideal for someone who thrives in complex networking environments and enjoys building secure, scalable systems.

Accountabilities

• Configure, manage, and optimize enterprise firewall environments including Cisco Firepower/ASA and Palo Alto Networks platforms, ensuring high availability and security performance.
• Troubleshoot complex network and security issues across multi-device environments including firewalls, VPNs, load balancers, IDS/IPS, and hybrid cloud connectivity.
• Support dual-stack IPv4/IPv6 infrastructure, ensuring secure and reliable routing, switching, DNS, and DHCP operations across enterprise networks.
• Maintain and tune security policies, signatures, and rulesets while ensuring compliance with operational and security standards.
• Monitor network traffic, analyze logs, and respond to security incidents and threats in real time.
• Extend and secure network environments into AWS cloud infrastructure while supporting hybrid deployments.
• Document configurations, procedures, and troubleshooting activities within enterprise ticketing and knowledge management systems.
• Participate in on-call rotations and collaborate with distributed teams to ensure continuous network security operations.
  
  

Requirements

• 5+ years of experience working with Cisco Firepower/ASA and Palo Alto Networks firewalls in enterprise environments.

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• Strong background in routing, switching, and network security across mid-to-large-scale infrastructures.
• Hands-on experience troubleshooting complex network issues involving multiple security devices and cloud connectivity.
• Solid understanding of IPv4/IPv6 networking, DNS, VPNs, load balancing, and security architecture principles.
• Experience working with both Linux and Windows operating systems in operational or engineering contexts.
• Ability to analyze system behavior, identify misconfigurations, and assess impact on mission-critical services.
• Strong problem-solving skills with the ability to work independently using technical documentation and vendor support resources.
• Excellent communication skills and ability to collaborate across technical and operational teams in a remote environment.
• Bonus: experience with Zscaler (ZIA/ZPA) or other Zero Trust security solutions.
  
  

Benefits

• Competitive salary range ($130,000 - $145,000 depending on experience and location)
• Comprehensive medical, dental, and vision coverage with high employer contribution
• Paid certifications and continuous professional development opportunities

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• 401(k) retirement plan with employer matching
• Generous paid time off and paid federal holidays
• Fully remote work flexibility
• Life insurance and short-term disability fully covered
• Wellness, fitness, and employee assistance programs
• Flexible spending accounts (medical, dependent care, transit, parking)
• Referral bonuses and internal career development programs
  
  

How Jobgether Works

We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team.

We appreciate your interest and wish you the best!

Why Apply Through Jobgether?

Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.