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Senior System & Infrastructure Specialist - Network & Security
Location: Rishon LeZion, Israel
SGF Global is recruiting a Senior System & Infrastructure Specialist for a leading enterprise client.
This is a senior, independent, hands-on position focused primarily on Microsoft systems and infrastructure, alongside significant responsibility for network and information security environments.
The role consists of approximately 65% systems and infrastructure and 35% network and security, with a strong emphasis on Check Point and Cisco Meraki.
What you'll do
Manage, maintain, upgrade, and harden Active Directory and Windows Server environments.
Administer Group Policy, DNS, DHCP, replication, FSMO roles, and Windows Server upgrades.
Manage Microsoft 365 services, including Entra ID, Exchange Online, Teams, SharePoint, and OneDrive.
Manage identity and access services, including SSO, MFA, Conditional Access, and Microsoft Authenticator.
Administer Terminal Services/RDS environments, application publishing, and Microsoft Connection Broker.
Support AWS and hybrid infrastructure integrating on-premises and cloud environments.
Manage Veeam Backup & Replication, perform recovery testing, and support disaster recovery processes.
Operate and harden Check Point environments, including firewalls, VPNs, ClusterXL, and Geo Cluster.
Manage Cisco Meraki infrastructure, including switching, routing, LAN/WAN, VPN, and SD-WAN.
Investigate complex technical issues, perform root cause analysis, and improve system stability and security.
Lead infrastructure migrations, upgrades, and hardening projects in production environments.
Work closely with vendors, system integrators, and internal teams while preparing technical documentation, procedures, and work plans.
Requirements
At least 10 years of experience as a Senior System Administrator or System Engineer in a complex or multi-site organization – mandatory.
Extensive hands-on expertise with Active Directory, Group Policy, DNS, DHCP, replication, FSMO, and Windows Server upgrades – mandatory.
Strong experience with Microsoft 365 and Entra ID – mandatory.
Experience with AWS and hybrid on-premises/cloud infrastructure – mandatory.
Proven hands-on experience with Veeam Backup & Replication, recovery testing, and DR processes – mandatory.
In-depth hands-on experience with Check Point – mandatory.
Practical experience with Cisco Meraki – mandatory.
Excellent troubleshooting, independent working, and technical documentation skills.
Nice to have
Microsoft, AWS, Veeam, Check Point, or Cisco certifications.
Experience with Cisco ISE/NAC, Zero Trust, ZTNA, DLP, or email security solutions.
Experience leading infrastructure migration, hardening, and upgrade projects.
If you are an experienced System professional who enjoys remaining hands-on, resolving complex issues, and taking broad ownership of critical infrastructure, we would be happy to hear from you.