Senior Network & Security Manager - LAN/WAN, DR

Mapa Group; Fatih; On-site; TRY 350,000 - 550,000; Full time

Job summary

Mapa Group is seeking an experienced Network Manager for a permanent, on‑site role in Maslak, Istanbul. You will lead the design, deployment, and operation of LAN/WAN, SD‑WAN, VPN, and data center networks, while guiding the network team and coordinating with security, vendors, and stakeholders.

The role requires hands‑on expertise in modern network technologies, strong leadership, and the ability to deliver reliable, secure connectivity across locations.

Qualifications

• Bachelor's degree in a related engineering discipline.
• Minimum 7 years of networking experience with 2+ years in leadership or operations management.
• Strong knowledge of TCP/IP, DNS, DHCP, VLAN, BGP, OSPF, routing, switching, VPN, and Wi‑Fi.
• Hands‑on experience with firewalls, IDS/IPS, NAC, 802.1X, and segmentation.
• Experience with Cisco, Fortinet, Palo Alto, Aruba, Huawei or similar tech.
• Familiar with ITIL, ISO 27001, KVKK, and security processes.
• Fluent English preferred; strong communication and crisis management.

Responsibilities

• Design, implement, operate, and improve LAN/WAN/WLAN/SD‑WAN networks.
• Oversee switches, routers, firewalls, and wireless devices lifecycle and upgrades.
• Monitor performance, capacity, availability, and SLA/KPI metrics.
• Coordinate incident response and escalation during outages and incidents.
• Lead incident, problem, and change management with root cause analysis.
• Collaborate on firewall, IDS/IPS, NAC, VLAN, VPN, and segmentation policies.
• Develop disaster recovery and business continuity plans.
• Manage vendor relations, contracts, and network investments.
• Prepare budgets and requirements for capacity expansions and new sites.
• Ensure accurate network inventories and documentation.
• Lead the network team’s work plans and performance reviews.
• Present reports to senior management on performance and security.

Skills

TCP/IP

DNS

DHCP

VLAN

BGP/OSPF

Routing

Switching

VPN

Wi‑Fi

Team management

Network monitoring

Incident response

Crisis management

Education

Bachelor's degree in a related engineering field

Tools

Cisco

Fortinet

Palo Alto

Aruba

Huawei

Job description

Mapa Group is seeking an experienced Network Manager for a permanent, on‑site role in Maslak, Istanbul. You will lead the design, deployment, and operation of LAN/WAN, SD‑WAN, VPN, and data center networks, while guiding the network team and coordinating with security, vendors, and stakeholders.

The role requires hands‑on expertise in modern network technologies, strong leadership, and the ability to deliver reliable, secure connectivity across locations.