Senior Network Administrator

• Design, configure, maintain, and troubleshoot WAN circuits, routers, and related connectivity
• Manage Fortinet firewall policies, security rules, and firmware updates
• Administer site-to-site and remote-access VPN solutions for secure connectivity
• Oversee installation, configuration, maintenance, and troubleshooting of telephone systems (VoIP, SIP trunks, and related endpoints)
• Monitor network performance, firewall health, VPN tunnels, and telephony quality; respond to alerts and resolve issues proactively
• Create and update network and telephony documentation, diagrams, and standard operating procedures
• Respond to and resolve support tickets related to WAN, firewalls, VPN, and telephony in a ticketing system (OS Ticket)
• Collaborate with team members on projects such as network upgrades, migrations, security audits, and new site deployments
• Perform routine maintenance, patching, and backups for managed systems
• Supervise and mentor Network Administrators

Do you have experience in Windows Server administration?, Do you have a Bachelor's degree?, * Must be a U.S. Person as defined by 22 C.F.R. § 120.62

• Bachelor's or master's degree in Information Technology, Computer Science, or a related field from an accredited college/university with an excellent academic record
• Minimum of 5 years of hands-on experience in WAN, firewall, VPN, and/or telephony administration
• Strong proficiency with Fortinet firewalls (FortiGate), including policy management, VPN setup, and troubleshooting
• Experience with WAN technologies and negotiating contracts with ISPs
• Solid knowledge of VoIP/telephony systems; knowledge of FreePBX is a plus
• Familiarity with Windows server administration, RHEL Linux, and VMware vSphere/ESXi environments
• Willingness and ability to efficiently answer and resolve end-user and infrastructure support tickets
• Understanding of networking fundamentals (TCP/IP, routing, switching, DNS, DHCP)
• Excellent written and verbal communication skills

Preferred Skills:

• Certifications such as Fortinet NSE 4/5/6/7, CCNA/CCNP, or an equivalent
• Certifications such as CISSP/CASP/CISM
• Experience with Fortinet ecosystem tools (FortiClient EMS, FortiAuthenticator, FortiAnalyzer)
• Knowledge of network monitoring tools
• Experience with compliance to CMMC/NIST 800-171

Salary Range:

• Experienced Professionals and Managers: $90,000-$175,000 per year, If you are a qualified individual with a disability or a disabled veteran, you have the right to request an accommodation if you are unable or limited in your ability to use or access our career center as a result of your disability. To request an accommodation, contact an ATA Engineering, Inc., Human Resources Representative at careers@ata-e.com.

Pulled from the full job description

• Tuition reimbursement
• Parental leave
• 401(k)
• Health insurance
• Retirement plan
• 401(k) matching
• Paid time off, * 401(k)
• 401(k) matching
• Dental insurance
• Flexible spending account
• Health insurance
• Life insurance
• Paid time off
• Parental leave
• Retirement plan
• Tuition reimbursement
• Vision insurance

ATA Engineering, an employee-owned engineering consulting company, is seeking an experienced Senior Network Administrator to manage and support our WAN infrastructure, Fortinet firewall environment, VPN services, and telephone (VoIP) systems. This hands-on role requires strong technical expertise in network security, connectivity, and telephony along with the ability to respond to support tickets in a timely and professional manner. The ideal candidate has 5+ years of relevant experience and is comfortable working across Windows, Red Hat Enterprise Linux (RHEL), and VMware environments.