Network Security Engineer

Select Minds•Lansing, MI

1d•$60 - $80•Onsite

About The Position

We are hiring a hands-on Network Security Engineer to support and strengthen enterprise security infrastructure. This role requires deep experience in Firewall Management, VPN configuration, Network Segmentation, Zero-Trust Implementation, and Linux system administration. This position is fully onsite in Colorado. Candidates must be comfortable working directly with infrastructure, networking, and security teams in a production environment.

Requirements

6+ years of experience in network security engineering
Strong knowledge of TCP/IP, routing, switching, and firewall architecture
Hands-on experience with enterprise firewall platforms
Experience with VPN configuration and troubleshooting
Strong Linux administration skills
Experience with vulnerability management and remediation processes

Nice To Haves

Experience in zero-trust architecture implementations
Exposure to micro-segmentation technologies
Certifications such as CCNP Security, PCNSE, NSE, or similar
Experience in regulated or enterprise environments

Responsibilities

Firewall Configuration & Optimization: Configure, deploy, and manage enterprise firewalls such as Palo Alto Networks, Fortinet, or Cisco Systems
Perform rule set analysis, cleanup, and performance tuning
Implement NAT policies, access controls, and application-layer inspection
Support firewall upgrades and change management processes
VPN & Secure Remote Access: Design and configure IPSec and SSL VPN solutions
Support secure remote workforce connectivity
Integrate multi-factor authentication into VPN environments
Troubleshoot connectivity and encryption issues
Network Segmentation & Security Architecture: Design VLANs and security zones aligned with organizational policies
Implement DMZ architectures
Enforce least-privilege access models
Control east-west traffic to reduce lateral movement risks
Zero-Trust & Micro-Segmentation Support implementation of zero-trust security principles
Configure micro-segmentation solutions such as VMware NSX or similar platforms
Enforce identity-based and policy-driven access controls
Security Compliance & Vulnerability Management Perform vulnerability scans using tools such as Tenable (Nessus) or Qualys
Analyze CVEs and coordinate remediation efforts
Support compliance initiatives aligned with NIST, CIS, or similar frameworks
Track remediation status and provide reporting to stakeholders
Linux System Administration & Automation Administer and harden Linux-based systems
Develop automation scripts using Bash or Python
Monitor logs and troubleshoot system-level issues
Support security appliances running on Linux platforms