Lead Enterprise Network & Security Engineer

Aydınlı Haz.Gıy. A.S.; Sarıyer; On-site; TRY 550,000 - 900,000; Full time

Job summary

Aydınlı Group is seeking an experienced Network & Security Engineer to manage and advance its enterprise network and security infrastructure in Marmara region. You will handle LAN/WAN/WLAN, VPNs, MPLS, and cloud networks while configuring Palo Alto, Check Point, and Fortinet devices.

The role requires hands-on firewall, SIEM, EDR, WAF, and CTI expertise, as well as strong 802.1X/WLAN knowledge and proactive threat response.

Qualifications

• Bachelor's degree in engineering or MIS is required.
• Minimum 5 years of experience in enterprise network and cybersecurity.
• Strong knowledge of LAN, WAN, VPN, IPsec, routing, and switching.
• Hands-on experience with at least one enterprise firewall platform (Palo Alto, Check Point, or Fortinet).
• Experience with Aruba, Cisco, HPE, or Dell switching.
• Knowledge of enterprise wireless networking (802.1X, RADIUS, NAC).
• Familiarity with QRadar or similar SIEM, log management, and alerts.
• Understanding of EDR, vulnerability management, WAF, PAM, and cyber threat intelligence.

Responsibilities

• Manage and improve the company’s network infrastructure (LAN/WAN/WLAN, VPN, MPLS, cloud).
• Troubleshoot routing, switching, IPsec, and TCP/IP issues.
• Administer security platforms (firewalls, WAF, EDR, SIEM, NAC, DNS security, PAM).
• Configure Palo Alto, Check Point, and Fortinet devices; maintain NAT, VPN, HA, and threat prevention.
• Support Aruba, Cisco, HPE, and Dell switches; manage Aruba ClearPass and AirWave.
• Oversee IBM QRadar SIEM including logs, alerts, and correlation rules.
• Monitor CTI platforms for threats and respond with remediation actions.
• Lead vulnerability management; monitor and improve results; coordinate with teams.
• Support Microsoft 365 security, AD, DNS/DHCP, and related services.
• Ensure 24/7 on-call support and operational continuity.

Skills

LAN/WAN

Routing & Switching

BGP/OSPF

Firewall platforms

SIEM/EDR

Wireless networking

Network monitoring

CTI & threat intel

English communication

Troubleshooting

Team collaboration

Education

Bachelor's degree in Engineering or MIS

Tools

Palo Alto

Check Point

Fortinet

Aruba ClearPass

AirWave

IBM QRadar

SentinelOne

Microsoft Defender

Azure Security

Job description

Aydınlı Group is seeking an experienced Network & Security Engineer to manage and advance its enterprise network and security infrastructure in Marmara region. You will handle LAN/WAN/WLAN, VPNs, MPLS, and cloud networks while configuring Palo Alto, Check Point, and Fortinet devices.

The role requires hands-on firewall, SIEM, EDR, WAF, and CTI expertise, as well as strong 802.1X/WLAN knowledge and proactive threat response.