Senior Network Security Architect

Aras Kargo; Fatih; Hybrid; TRY 350,000 - 520,000; Full time

Benefits offered by this job

Hybrid working model

Birthday leave

30 days paternity leave

Meditopia app

Job summary

Aras Kargo is seeking a Senior Network Specialist to actively participate in our network infrastructure processes at Headquarters IT. You will secure and optimize our global network, manage firewalls, VPNs, and SIEM integrations, and collaborate with SOC and third-party providers to stay ahead of threats.

The role requires strong English, CCNA/CCNP or-equivalent, and 5+ years in network security, with ISO/NIST/CIS standards alignment. Hybrid work model and comprehensive benefits offered.

Qualifications

• Bachelors degree in Computer Engineering, Electronics Engineering, or a related field.
• Minimum 5 years of professional experience in network security.
• Advanced knowledge in firewall, IDS/IPS, and VPN systems management (Fortinet, Palo Alto, Cisco, etc.).
• Deep technical knowledge of L3-L7 network protocols, TCP/IP, routing, and switching.
• Proficiency in OSI model and network protocols (TCP/IP, DNS, DHCP, etc.).
• Experience in SIEM solutions (Fortinet, QRadar, ArcSight, etc.).
• preferably experience in supporting network-related penetration tests or attack simulation processes.
• Holds CEH, CompTIA Security+, and CCNA/CCNP Security certifications.
• Experience in vendor and third-party service provider management.
• Excellent command of English
• Strong analytical thinking, problem-solving, and quick decision-making skills.

Responsibilities

• Ensure, manage, and continuously improve the security of the companys network infrastructure.
• Configure and manage firewalls, IDS/IPS, VPN, and other network security solutions (Fortinet, Palo Alto, Cisco, etc.).
• Analyze network traffic to detect abnormal behavior, potential threats, and security vulnerabilities.
• Manage network segmentation, VLAN, and ACL configurations.
• Plan and apply security patches on network devices.
• Design and maintain network architectures in compliance with security standards (ISO 27001, NIST, CIS).
• Configure VPN (SSL/IPSec) to ensure secure remote access.
• Network Security and NAC: 802.1X, MAC Authentication, and Network Access Control
• Holds CCNA/CCNP or Aruba ACMA/ACMP certifications, or possesses knowledge at this level,
• Manage DDoS protection, IDS/IPS, and NDR solutions.
• Support relevant teams during security incidents (Incident Response) by blocking network access, providing logs, and isolating traffic when necessary.
• Collaborate with SOC, Information Security, and penetration testing teams to implement network-related security measures.
• Monitor current cyber threats, security trends, and technologies to propose proactive measures.
• Contribute to Disaster Recovery (DR) and Business Continuity (BC) planning from a network perspective.
• Work closely with vendors and third-party service providers to manage network security solutions, monitor performance, and implement improvements.

Skills

Excellent English

Analytical thinking

Problem-solving

Decision-making

Education

Bachelors degree in Computer/Electronics Engineering

Tools

Fortinet

Palo Alto

Cisco

SIEM tools (QRadar/ArcSight)

Job description

Aras Kargo is seeking a Senior Network Specialist to actively participate in our network infrastructure processes at Headquarters IT. You will secure and optimize our global network, manage firewalls, VPNs, and SIEM integrations, and collaborate with SOC and third-party providers to stay ahead of threats.

The role requires strong English, CCNA/CCNP or-equivalent, and 5+ years in network security, with ISO/NIST/CIS standards alignment. Hybrid work model and comprehensive benefits offered.