Industrial Network & OT Cybersecurity Admin

Siemens; Fatih; On-site; TRY 350,000 - 520,000; Full time

Job summary

Siemens in Istanbul, Türkiye is seeking a Network and Cyber-Security Administrator to strengthen our Grid Software security posture on site. The role focuses on designing secure industrial networks and protecting critical energy automation systems.

You will work with cross-disciplinary teams, implement security measures, perform risk assessments, and contribute to project phases from planning to commissioning.

Qualifications

• Bachelor’s or Master’s degree in Computer/Electrical Engineering or related field.
• Minimum 5 years of proven experience in Network and Cyber-Security.
• Strong knowledge of Complex IT systems and networks, software, hardware, and networking protocols.
• Proficiency in English; German is a plus.

Responsibilities

• Design secure industrial network architectures in line with cybersecurity standards (e.g., IEC 62443, NIST, NIS2, EPDK Cyber Security Competency Modal).
• Perform, develop, implement, and maintain system security administration on designated technology platforms, including operating systems, applications, and network security devices, in accordance with defined policies, standards, and procedures.
• Proficiency in security architectures and knowledge of risk assessment techniques are required.
• Defining, implementing, and maintaining OT-specific cybersecurity solutions.
• Preparation of technical documents, specifications, reports.
• Conduct site visits, deliver cybersecurity training, and provide expert consultation to stakeholders.
• Lead and support cybersecurity projects through all phases, including FAT, SAT, and commissioning.

Skills

Network security

Cybersecurity

OT security

Vulnerability assessment

Penetration testing

Security architectures

Risk assessment

English proficiency

Education

Bachelor’s or Master’s degree in Computer/ Electrical-Electronics Engineering or related field

Relevant certifications (CCNA, NSE4, CISA, CompTIA Security+, CISSP) are a plus

Tools

Linux

Windows Server

Firewall configurations

NSE4

CISA

CompTIA Security+

Job description

Siemens in Istanbul, Türkiye is seeking a Network and Cyber-Security Administrator to strengthen our Grid Software security posture on site. The role focuses on designing secure industrial networks and protecting critical energy automation systems.

You will work with cross-disciplinary teams, implement security measures, perform risk assessments, and contribute to project phases from planning to commissioning.