Enterprise Network & Security Architect

Aydınlı Haz.Gıy. A.S.; Sarıyer; On-site; TRY 320,000 - 520,000; Full time

Job summary

Aydınlı Group is seeking a seasoned Network Security Engineer to lead and optimize the company's enterprise network and security infrastructure in Türkiye.

You will manage LAN/WAN, firewall platforms (Palo Alto, Check Point, Fortinet), SIEM (QRadar), EDR, WAF, load balancers, and monitoring tools, coordinating with vendors and internal teams to ensure uptime, security, and compliant operations.

Qualifications

• Bachelor's degree in a related field is required.
• 5+ years of experience in enterprise networking and cybersecurity.
• Strong knowledge of LAN, WAN, WLAN, TCP/IP, routing, switching, VLAN, STP, LACP, MPLS, VPN, IPsec.
• Hands-on experience with Palo Alto, Check Point, or Fortinet firewalls.
• Experience with Aruba, Cisco, HPE, or Dell switching solutions.
• Knowledge of 802.1X, RADIUS, and NAC technologies.
• Experience with IBM QRadar or similar SIEM.
• Understanding of EDR, vulnerability management, WAF, and threat intelligence solutions.
• Strong troubleshooting and analytical skills; ability to communicate with vendors.

Responsibilities

• Manage and optimize enterprise network infrastructure (LAN/WAN/WLAN, VPN, MPLS, cloud networking).
• Configure and troubleshoot routing, switching, VLANs, STP, LACP, BGP, OSPF.
• Administer security platforms: Firewalls, IDS/IPS, WAF, EDR, SIEM, NAC, DNS security, PAM.
• Configure security policies on Palo Alto, Check Point, Fortinet; NAT, VPN, HA, Threat Prevention.
• Manage switching infra (Aruba, Cisco, HPE, Dell); ClearPass, AirWave, and wireless environments.
• Support load balancers: F5, Kemp, Citrix; monitor and optimize performance.
• Administer IBM QRadar SIEM logs, rules, alerts, and reports.
• Monitor incidents, coordinate remediation with stakeholders; conduct vulnerability remediation.
• Maintain CTI feeds and external attack surface monitoring; respond to threats.

Skills

Networking

Cybersecurity

Firewall management

SIEM

EDR

WAF

Load balancers

Monitoring

Vendor coordination

Cloud networking

Education

Bachelor's degree in Computer Engineering

Bachelor's degree in Electrical & Electronics Engineering

Bachelor's degree in Telecommunications Engineering

Bachelor's degree in Management Information Systems

Tools

Palo Alto

Check Point

Fortinet

Aruba ClearPass

IBM QRadar

SentinelOne

Microsoft Defender

F5

Kemp

Citrix

Wireshark

Nmap

PRTG

NetFlow

Job description

Aydınlı Group is seeking a seasoned Network Security Engineer to lead and optimize the company's enterprise network and security infrastructure in Türkiye.

You will manage LAN/WAN, firewall platforms (Palo Alto, Check Point, Fortinet), SIEM (QRadar), EDR, WAF, load balancers, and monitoring tools, coordinating with vendors and internal teams to ensure uptime, security, and compliant operations.