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# Network Security Engineer

- **Company:** Planetart LLC
- **Location:** Woodridge, IL, United States (Remote available)
- **Experience:** Experienced
- **Salary:** $80,000.0 - $120,000.0
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Application Programming Interfaces (APIs), Artificial Intelligence, Audit Trail, User Authentication, Cyber Security, System Configuration, Linux, Network Address Translation, Domain Name System (DNS), Networking Hardware, Virtual Private Networks (VPN), Python (Programming Language), Network Security, Linux Servers, Log Analysis, Parsing, Performance Tuning, Windows PowerShell, Server Administration, Security Information and Event Management, Systems Integration, TCP/IP, Data Logging, Firewalls (Computer Science), Information Technology, Firewall Services Module, Splunk, Cisco
- **Published:** October 27, 2026
- **Apply:** https://www.careerbuilder.com/job-details/network-security-engineer-woodridge-il--a48e1422-c78d-4df9-9041-bd212ebf476b

## About the Role

Network Security, Sales, Customer Experience, Cisco Network Systems, Network Security, Security Attacks, Security Information and Event Management (SIEM), Firewalls, Endpoint Security, Linux Operating System, * Bachelor's degree in Computer Science, Cybersecurity, or equivalent experience.

 * 3-5 years of experience in network security, security operations, incident response, or a related role.
 * Working knowledge of Cisco technologies and Palo Alto firewalls, including interpreting configurations, policies, and logs; understanding of TCP/IP, DNS, NAT, VPNs, and segmentation.
 * Understanding of Windows and Linux server security, including hardening, patching, authentication, permissions, and audit logging.
 * Knowledge of Security Information and Event Management (SIEM), including log collection, forwarding, ingestion, parsing, correlation, and alert monitoring.
 * Experience with EDR configuration and investigation, including policies, detection settings, exclusions, endpoint telemetry, and response capabilities.
 * Ability to triage alerts as a SOC analyst would, gather evidence, prioritize threats, and escalate incidents with clear documentation.
 * Strong analytical, troubleshooting, and communication skills, with the ability to collaborate across security, network, and infrastructure teams.
 * Understanding of how artificial intelligence (AI) can be integrated into security workflows, including validating AI-generated findings, protecting sensitive data, and maintaining analyst oversight.
 * Ability to develop, test, and document security scripts and tools using Python, PowerShell, or similar languages, including integrations with security tool APIs.
 * Preferred: Splunk experience, including SPL searches, dashboards, and configuring and tuning alerts, thresholds, schedules, and notifications.

## Description

PlanetArt is looking for a Network Security Engineer to support the company's Security Department. The successful candidate will assess network and server security, monitor security events, and investigate alerts across Cisco technologies, Palo Alto firewalls, Windows and Linux servers, and endpoint security tools. This role requires an understanding of SIEM log collection and monitoring, EDR configuration, and SOC alert triage. The engineer will work with infrastructure teams to address security risks; direct configuration of network devices and firewalls is outside the scope of this position., * Review Cisco and Palo Alto firewall policies, access controls, segmentation, VPNs, and security logs.

 * Assess Windows and Linux server hardening, patching, authentication, permissions, and audit logging.
 * Verify SIEM collection of firewall, network, server, and endpoint logs; investigate logging gaps.
 * Monitor SIEM and Endpoint Detection and Response (EDR) alerts for suspicious activity.
 * Triage alerts: validate detections, distinguish false positives, assess severity, and escalate incidents.
 * Correlate network, server, identity, and endpoint events to identify affected systems and timelines.
 * Configure EDR policies, detection settings, exclusions, and alerts through approved change procedures.
 * Coordinate incident containment and remediation with infrastructure teams; track issues to resolution.
 * Document investigations and response procedures; evaluate AI use in analysis and detection.
 * Develop, test, and maintain security tools for log analysis, alert triage, and automation.
 * Recommend security improvements to the teams responsible for network and server configuration.