System Administrator – Energy Grid Software & Security

Siemens; Fatih; On-site; TRY 180,000 - 300,000; Full time

Job summary

Siemens is seeking a System Administrator in Istanbul to design, implement, and manage complex IT infrastructures for Grid Software solutions. You’ll install and maintain systems, monitor performance, and enforce security policies across Linux, Unix, and Windows environments.

The role requires 3+ years of hands‑on experience, virtualization expertise (KVM/OpenShift/VMware/Proxmox), and strong scripting and programming knowledge. English fluency is essential; German is a plus.

Qualifications

• Bachelor’s or Master’s degree in Computer Engineering, Electrical‑Electronics Engineering, or similar fields.
• Minimum 3 years of proven experience as a System Administrator, Network Administrator, or similar role.
• Experience with Linux, Unix, and Windows operating systems in an enterprise environment.
• Knowledge of complex IT systems and networks, software, hardware, and networking protocols.
• Hands‑on experience with virtualization technologies such as RedHat KVM, OpenShift, VMware, or Proxmox.
• Experience designing, deploying, and implementing core routing, switching, firewall, and security, and datacenter networks per industry best practices.
• Experience with routing protocols and WAN technologies including MPLS, DMVPN.
• Experience with application and operating system hardening & cybersecurity.
• Experience with software licensing and agreements.
• Experience with version control tools like Git, Subversion.
• Linux/Unix shell scripting skills.
• Programming knowledge in Java, Python (optional).
• Oracle Database administration experience (optional).
• Excellent problem‑solving aptitude and analytical skills.
• Strong communication skills and ability to work with multidisciplinary teams.
• Professional working proficiency in English; German is a plus.

Responsibilities

• Design, implementation, installation, and configuration of complex IT infrastructures for Siemens Grid Software Solutions/Projects.
• Install, configure, maintain, and reliably operate external and internal systems, software, hardware, and networks.
• Diagnose hardware and software errors, document problems and solutions, prioritize issues, and assess impact.
• Design, monitor LAN/WAN systems and equipment (switch, firewall, router, NMS, etc.).
• Implement security services for corporate and customer networks; define, implement, and maintain an up‑to‑date security landscape.
• Monitor and maintain software licensing and maintenance agreements.
• Maintain and administer versioning tools such as Git.
• Install, configure, patch, upgrade, and migrate Oracle Database servers; monitor system health, performance, availability, and security.
• Prepare technical documents and specifications.
• Ensure compliance with Siemens security requirements for embedded, web, mobile, cloud & IoT environments.

Skills

Problem-solving

Analytical skills

Communication skills

Team collaboration

English proficiency

German language (nice to have)

Shell scripting

Java

Python

Education

Bachelor’s or Master’s degree in Computer Engineering or Electrical‑Electronics Engineering

Tools

RedHat KVM

OpenShift

VMware

Proxmox

Git

Subversion

Oracle Database

Job description

Siemens is seeking a System Administrator in Istanbul to design, implement, and manage complex IT infrastructures for Grid Software solutions. You’ll install and maintain systems, monitor performance, and enforce security policies across Linux, Unix, and Windows environments.

The role requires 3+ years of hands‑on experience, virtualization expertise (KVM/OpenShift/VMware/Proxmox), and strong scripting and programming knowledge. English fluency is essential; German is a plus.