דרושים » מחשבים ורשתות » System Administrator ( VMware /Citrix)

We are seeking an experienced System Administrator to join our IT team.
The ideal candidate will be a team player with the ability to collaborate effectively with different teams.
Responsible for creating innovative solutions that save time for IT department.
This role involves designing, implementing, managing, and evaluating IT projects across our organization, as well as improving and changing the current infrastructure.

Responsibilities:
Active Directory and Azure Management: Manage and maintain Active Directory infrastructure, including Group Policy Objects (GPO) and Azure Active Directory integration.
VMware Infrastructure: Administer VMware vSphere across multiple environments and sites, including cluster/host operations, ESXi lifecycle, performance monitoring, and capacity planning.
Horizon: Manage Horizon VDI infrastructure: connection servers, pools, golden images, Blast/PCoIP troubleshooting, and VDI lifecycle tasks.
Microsoft 365 Administration: Administer the Microsoft 365 suite including Exchange Online, SharePoint, Teams, and OneDrive for Business. Ensure system health, permissions, mail flow, and collaboration stability.
Citrix Administration: Administer Citrix XenApp/XenDesktop environments, including delivery groups, catalogs, virtual desktop performance, and application/desktop publishing.
Storage Administration: Manage and optimize storage platforms (NetApp or Pure Storage). Oversee volumes, performance, snapshots, availability, and data integrity.
Project Management: Lead and coordinate IT projects related to system upgrades, migrations, and implementations ensuring timely completion and adherence to budget and requirements.
Scripting: Develop and maintain scripts (e.g., PowerShell, Bash) to automate routine tasks, streamline processes, and improve efficiency across the IT environment.
Okta Administration(Advantage): Oversee Okta identity and access management system, including user provisioning, authentication policies, and application integrations.
Firewalls and Switches Configuration (Advantage): Configure and maintain Palo Alto or Forti firewall rules, VPNs, and network switches to ensure security and optimize network performance.

We are looking for a hands-on System Administrator to join our IT team and take ownership of our day-to-day systems operations. This role is ideal for someone who enjoys working across Microsoft 365 and Azure environments, thrives in hybrid infrastructures, and wants to grow deeper into cloud and automation technologies.

You will be responsible for maintaining reliable, secure, and scalable systems while supporting users in a global environment.

Your mission:
Administer and maintain Microsoft 365 and Entra ID (Azure AD) environments.
Manage identity, access, and security configurations across cloud and hybrid systems.
Support and maintain Azure environments, including virtual machines and networking.
Troubleshoot and resolve complex system, identity, and access-related issues.
Automate repetitive administrative tasks using PowerShell where applicable.
Collaborate with IT, Security, and other teams to ensure system stability and compliance.
Take ownership of daily IT operations and continuously improve reliability and efficiency.

we are looking for a system Cloud and Virtualization Engineer to join our Professional Services Team.
?Responsibilities: Design, implement, and maintain complex VMware Cloud infrastructure environments. Manage large VMware virtual environments. Work with servers and operating systems (Windows & Linux ). Develop new Cloud services and ensure proper documentation.

We are seeking an experienced and security-oriented System Administrator with 3-5
years of hands-on experience to join our IT team. Responsible for maintaining,
configuring, and securing our organizations infrastructure, with a strong focus on
networking, virtualization, and firewall administration. Strong communication and
customer service skills are essential, as this role involves frequen interactio with
internal users and cross-functional teams.
Key Responsibilities:
● Manage and monitor internal infrastructure, including servers, networks,
virtualization platforms, and firewalls.
● Administer and maintain systems such as VMware/Hyper-V and backup solutions.
● Configure and maintain network devices (switches, routers, firewalls) with a focus on security best practices.
● Apply security patches, hardening procedures, and proactively monitor for threats and vulnerabilities.
● Respond to technical system support tickets and incidents in a timely and
customer-focused manner.
● Document system configurations, processes, and procedures clearly and
accurately.
● Collaborate with other IT staff to plan and execute infrastructure upgrades and improvements.
● Ensure compliance with security policies and industry standards.

We are looking for a hands-on IT System Administrator to join our IT team and take ownership of our internal IT environment. You will manage and support our Microsoft 365 ecosystem, endpoint devices (Windows & macOS), security and compliance, networking, and core SaaS applications.
The Responsibilities
Manage day-to-day IT operations and act as a technical escalation point for complex end-user and system issues.
Administer and maintain Microsoft 365, Entra ID (Azure AD), Exchange Online, Intune, and SharePoint.
Configure, support, and troubleshoot endpoint devices across Windows and macOS environments (Linux - advantage).
Manage device security and compliance using MDM solutions across platforms (Windows and macOS).
Support and maintain SaaS applications, including Jira, Zoom, Slack, and other business tools.
Manage, operate, and troubleshoot firewall and VPN environments, including FW (FortiGate / FortiClient).
Maintain clear and up-to-date technical documentation.
Participate in IT projects, system improvements, and process automation using PowerShell and/or Bash.

Job Overview: We are seeking an experienced and security-oriented system Administrator with 3-5 years of hands-on experience to join our IT team. Responsible for maintaining, configuring, and securing our organizations infrastructure, with a strong focus on networking, virtualization, and firewall administration. Strong communication and customer service skills are essential, as this role involves frequent interaction with internal users and cross-functional teams.
Key Responsibilities: Manage and monitor internal infrastructure, including servers, networks, virtualization platforms, and firewalls. Administer and maintain systems such as VMware /Hyper-V and backup solutions. Configure and maintain network devices (switches, routers, firewalls) with a focus on security best practices. Apply security patches, hardening procedures, and proactively monitor for threats and vulnerabilities. Respond to technical system support tickets and incidents in a timely and customer-focused manner. Document system configurations, processes, and procedures clearly and accurately. Collaborate with other IT staff to plan and execute infrastructure upgrades and improvements. Ensure compliance with security policies and industry standards.

We are looking for a talented IT Expert to join our Storage & Virtualization team. In this role, you will serve as a subject matter expert responsible for building, maintaining, and managing virtual infrastructure and enterprise storage platforms. You will play a key role in ensuring high availability, performance, and reliability across a technically diverse and demanding environment.
Responsibilities:
Design, deploy, and operate virtualization solutions that provide high availability, scalability, and performance across a complex on-premises infrastructure.
Design, deploy, operate, and maintain enterprise storage systems, including NetApp ONTAP, VAST Data, and IBM storage platforms.
Integrate and optimize storage solutions within virtualized environments.
Identify and evaluate new technologies relevant to storage and virtualization.
Automate IT processes to improve reliability, efficiency, and scalability of infrastructure.
Collaborate with other IT domains to ensure seamless operation of core services.

Were seeking a hands‑on System Administrator to support, maintain, secure, and improve our global IT environment. You will manage identity platforms, cloud services, networking, security solutions, automation, and endpoints-ensuring reliability, strong security posture, and smooth operations across the company.

Youll take ownership of critical systems, implement automation, integrate security and AI tooling, and collaborate with global teams to maintain a modern, scalable, and secure infrastructure.



The day-to-day:

Identity & Access: Administer Okta, Entra ID/Azure AD, and Active Directory-including dynamic, static, and rule‑based groups, Conditional Access, SCIM integrations, provisioning/deprovisioning, and full Joiner-Mover-Leaver lifecycle.
AWS Operations: Manage IT infrastructure and services on AWS-including IAM, VPC architecture (segmentation, routing tables, ingress/egress controls, security groups), EC2 lifecycle (AMIs, autoscaling), S3 (policies, lifecycle, encryption), Route 53(zones and delegations), hybrid connectivity (IPSec Site‑to‑Site VPN), monitoring/alerts, backup strategies, replication, and resilience.
Linux / Endpoint Management: Provide advanced support for Linux, Windows, and macOS systems-performing CLI operations, troubleshooting across multiple distros (Ubuntu/Debian/CentOS/RHEL), service configuration, patch management, and scripting for automation.
Domains & DNS: Manage multiple domains across different registrars, including name server configurations, domain delegation, DNS hygiene, and ensuring reliable routing and availability.
Certificates: Administer SSL/TLS certificates, certificate authorities, renewal processes, and maintain code‑signing certificatesfor secure application and automation signing.
Networking & Security: Operate and troubleshoot IPSec Site‑to‑Site VPNs, BGP routing, VLAN segmentation, Fortinet firewalls, Zscaler security policies, and PAC file routing logic.
Resilience: Own Backups, Disaster Recovery (DR), and Business Continuity (BCP) processes-including documentation, periodic testing, and recovery validation.
Integration & Automation: Manage API keys, secure token handling, and AI MCP connections to integrate third‑party AI services, security systems, and automation tools into IT workflows.

abra professional services is seeking for an experienced Linux System Administrator to join a classified defense-related project. The role involves designing, deploying, and maintaining computing solutions for complex command-and-control systems in a dynamic and heterogeneous environment. Responsibilities include:
* Deployment and maintenance of computing solutions for complex command-and-control systems
* Troubleshooting customer issues both on-site and in project laboratories across multiple locations
* Providing fast and flexible solutions for users working in complex, multi-environment development systems
* Writing technical specifications, procedures, and operational documentation
* Integrating with interfacing systems and platforms
* Working in a dynamic and heterogeneous production environment
* Full on-site position at the company’s offices in Holon (not a hybrid role)