Senior Network Security Engineer (100% Remote)

100% Remote

6 Month Contract

Network Security Engineer

Role Summary

We are seeking a high-level Network Security Engineer with a specialized focus on environment hardening and micro-segmentation. In this role, you will be the primary architect responsible for "cleaning up" technical debt, managing insecure ports, and optimizing overly permissive firewall rules across a complex multi-vendor environment.

Core Responsibilities

• Design and enforce rigorous firewall policies, security rule sets, and NAT controls. Conduct audits to identify and decommission insecure ports and redundant rules.

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• Implement and maintain physical and virtual firewalls, specifically Palo Alto (NGFW, Panorama) and Juniper (SRX, Junos Space).
• Manage and tune Prisma Access and GlobalProtect VPN profiles, including IPsec tunnels, site-to-site connections, and IKEv2 protocols.
• Design and implement secure segments for high-risk systems and medical devices. Utilize VMware NSX or similar tools for internal micro-segmentation.
• Develop and tune IPS/IDS signatures, anti-malware profiles, and advanced threat protection settings.
• Collaborate with the SOC to analyze logs and traffic anomalies. Conduct packet analysis using Wireshark or NetScout to resolve complex connectivity issues.
• Maintain precise network diagrams, firewall rule documentation, and security standards for annual risk assessments and audits.

Must-Have Qualifications

• 3-5+ years of dedicated Network Security experience in a mid-to-large scale environment.

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• Juniper Expert: Proven experience managing Juniper SRX firewalls, specifically focusing on internal traffic flow.
• Deep hands-on experience with Palo Alto NGFW, Panorama, and Prisma Access.
• Demonstrated experience in rule recertification, port management, and reducing attack surfaces.
• Strong understanding of VPN/Remote access (GlobalProtect, IPsec) and packet-level troubleshooting (Wireshark).

Nice-to-Have Skills

• Experience with VMware NSX for micro-segmentation and isolation strategies.
• Industry Context: Experience within Healthcare or clinical environments (managing medical device security/HIPAA compliance).
• Certifications: PCNSE, JNCIP-SEC, or CISSP.