Senior Cybersecurity & Network Security Engineer
Remote · Istanbul, Istanbul, Turkey
Job Summary
Senior Cybersecurity & Network Security Engineer needed to secure critical digital platforms, payment systems, and enterprise infrastructure. You’ll manage and improve network, server, endpoint security and data protection; operate security technologies (Firewall, IDS/IPS, WAF, DDoS protection, Web Proxy, EDR/XDR, Email Security, Sandbox, SIEM, DLP, PAM); drive incident response, risk assessments, vulnerability follow-ups, and security-control reviews; ensure compliance with KVKK, PCI DSS, ISO 27001, ITIL, COBIT, Law No. 5651, and Law No. 6493; own security-policy implementation, hardening, access control, logging, monitoring, and audit readiness across cloud, on-premise, and hybrid environments; support penetration testing, vulnerability management, audits, and third-party reviews; translate emerging threats into practical improvements and prepare stakeholder reports.
Required Qualifications
- Bachelor’s degree in Computer Engineering, Electrical/Electronics Engineering, Telecommunications Engineering, Information Systems, or related fields
- Minimum 5 years of experience in Network Security, Information Security, Cybersecurity Operations, IT Risk, or IT Audit
- Core Tech Stack: Firewall, IDS/IPS, WAF, DDoS, VPN, Web Proxy, NAC, EDR/XDR, SIEM, DLP, or PAM
- Strong networking fundamentals
- Understanding of KVKK, PCI DSS, ISO 27001, ITIL, COBIT; experience in financial services/fintech/banking/retail tech is a plus
- Good command of English
- Certifications such as CCNP, CCSA, PCNSA, CEH, CISSP, CISM, CISA, ISO 27001 LA, or equivalent (preferred)
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