Director of Network & Cyber Security

Marti; Şile; On-site; TRY 350,000 - 600,000; Full time

Job summary

Marti, Türkiye’s leading mobility app, seeks a Senior leader to own Network and IT infrastructure, drive cyber security strategy, and build a high-performing team. You will integrate security with platform operations, cloud and on-prem setups, and collaborate with cross-functional teams to ensure resilience and compliance.

The role requires a decade of experience across network and security domains, strong leadership, and excellent English communication for global collaboration.

Qualifications

• Bachelor’s degree in Computer Engineering, Computer Science, Electrical and Electronics Engineering, Information Systems, or a related field.
• At least 10 years of professional experience across network infrastructure, systems administration, and cyber security.
• At least 3–5 years of team leadership, technical leadership, or management experience.
• Strong and demonstrable experience in both Network/IT Infrastructure and Cyber Security.
• Hands-on experience managing enterprise firewalls, switches, routers, VPNs, wireless networks, servers, and related infrastructure.
• Strong experience with Microsoft Active Directory, Group Policy, DNS, DHCP, identity management, and access-control processes.
• Practical experience implementing and operating EDR, SIEM, PAM, vulnerability-management, and related security solutions.
• Strong knowledge of network segmentation, system hardening, privileged-access management, vulnerability remediation, and incident response.
• Experience with NIST CSF, CIS Controls, CIS Benchmarks, ISO 27001.
• Ability to translate technical risks into business impact and remediation plans.
• Advanced professional proficiency in written and spoken English.
• Ability to communicate effectively in English with international executives, auditors, and vendors.

Responsibilities

• Own the company’s Network and IT infrastructure architecture and operations.
• Lead security strategy and oversee EDR, SIEM, PAM, vulnerability-management, and data protection solutions.
• Coordinate governance, risk, and compliance activities including SOX IT controls and audits.
• Build and lead the Network and Cyber Security team with clear ownership and KPIs.
• Collaborate across Software Engineering, Platform, DevOps, Cloud, Product, and Data teams to embed security-by-design.

Skills

Network/IT Infra

Cyber Security

Leadership

English proficiency

Communication

Education

Bachelor's degree in Computer Engineering / Computer Science / EEE / Information Systems

Tools

Active Directory

EDR

SIEM

PAM

Vulnerability management

Job description

Marti, Türkiye’s leading mobility app, seeks a Senior leader to own Network and IT infrastructure, drive cyber security strategy, and build a high-performing team. You will integrate security with platform operations, cloud and on-prem setups, and collaborate with cross-functional teams to ensure resilience and compliance.

The role requires a decade of experience across network and security domains, strong leadership, and excellent English communication for global collaboration.