Systems Administrator - Network Security

Key Responsibilities

• Design, configure, and maintain complex network infrastructures, including LAN, WAN, and cloud-based networks.
• Configure and manage firewalls (e.g., Palo Alto, Cisco) and enforce network security policies.
• Perform cybersecurity mitigation tasks, including patch management, vulnerability scanning, log analysis, and incident response.
• Install, configure, and maintain hardware (servers, routers, switches, firewalls, etc.).
• Perform OS and application software updates, system tuning, and performance optimization.
• Monitor system and network performance and troubleshoot issues to ensure high availability and reliability.
• Document system configurations, procedures, and changes in accordance with IT policies.
• Collaborate with security, engineering, and operations teams to implement IT infrastructure projects.
• Ensure compliance with internal security policies and industry best practices.
• Work with a team to design and assemble systems.
• Understand current hardware offerings from major vendors.
• Configure and install new hardware systems.

Requirements

• Education & Experience: Bachelor’s degree in Information Technology, Computer Science, or related field; 3+ years of experience in system/network administration, depending on educational background.
• Technical Skills: Strong experience with network design and configuration (TCP/IP, VLANs, VPNs, DNS, DHCP); proficiency with firewall administration and network access controls; knowledge of cybersecurity principles, common threats, and mitigation strategies; experience with Windows and/or Linux server environments; familiarity with virtualization platforms (e.g., VMware, Hyper-V); scripting skills (e.g., PowerShell, Bash) are a plus.
• Certifications: CompTIA Security+, Network+, CySA+, Cisco CCNA/CCNP, Microsoft Certified: Azure Administrator Associate or similar; Certified Information Systems Security Professional (CISSP).
• Soft Skills: Strong problem-solving and analytical skills; effective communication and documentation abilities; ability to work independently and as part of a team; detail-oriented and security-focused mindset.