Senior System Administrator (Linux & Windows)

Yael Group is recruiting a Senior System Administrator (Linux & Windows)
for a large organization located in Tel Aviv.

What you’ll be doing:
- Leading IT Infrastructure & Network Strategy: Overseeing the design, deployment, and management of scalable, reliable, and high-performance IT networks and infrastructure that support business growth.
- Network Administration & Optimization: Managing LAN, WAN, VPNs, VLANs, andwireless environments to ensure optimal connectivity, performance, and uptime across all sites.
- IT Operations Management: Driving day-to-day IT operations, ensuring smooth delivery of both on-site and remote technical support services for all organizational users.
- Team & Stakeholder Collaboration: Partnering with business units to understand technical needs, align infrastructure solutions, and provide expert guidance on network- related initiatives.
- Lifecycle Management: Overseeing IT onboarding and offboarding processes for employees, including device provisioning, network access, and system configuration.
- Vendor & Asset Management: Managing vendor relationships, procurement, and inventory of networking equipment, servers, and IT devices to ensure cost efficiency and availability.
- System Monitoring & Reliability: Proactively monitoring network and infrastructure performance, troubleshooting issues, and implementing improvements to maintain high availability and resilience.
- Documentation & Process Ownership: Creating and maintaining up-to-date ation for network architecture, infrastructure configurations, and IT procedures to ensure knowledge continuity and operational efficiency.
דרישות התפקיד
- Bachelor’s degree in Computer Science, Information Systems, or related field (relevant certifications such as CCNA/CCNP, VMware, or Microsoft are a plus).
- 4+ years of hands-on experience in IT infrastructure and network administration, with proven track record in managing medium-to-large scale environments.
- Strong expertise in network protocols and concepts (TCP/IP, DNS, DHCP, VLANs, VPN, routing, switching, firewalls).
- Experience with endpoint management (Windows/Mac) and server administration (Linux/Unix & Windows).
- Solid knowledge of virtualization platforms (VMware, xcp-ng, Hyper-V) and storage/backup systems.
- Familiarity with IT security principles and products (PfSense, ESET Antivirus/EDR) as they relate to network stability and resilience.
- Proficiency in automation and scripting (Python, PowerShell, Bash) to streamline infrastructure operations.
- Strong leadership and communication skills, with the ability to manage vendors, guide IT staff, and collaborate effectively with cross-functional teams.
- Problem-solving mindset with fast learning capabilities and the ability to adapt to evolving technologies.