לוח משרות דרושים System administrator

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)

our company Professional Services is looking for an experienced Application Infrastructure Administrator to join our team and work in complex, technology-driven environments. The team is responsible for maintaining application infrastructure systems and cloud environments in production The role involves working with managed cloud services Storage infrastructures advanced computing services networking, and information security This position requires a high level of responsibility and initiative, with ongoing collaboration with development teams and various operations teams. The role includes supporting and implementing new systems and releases, as well as managing and executing new and existing cloud-based projects In addition, the position involves continuous proactive work, including monitoring, early detection, and rapid resolution of system issues in production environments.

We're seeking a technically curious and proactive IT Support & System Administrator to play a key role in supporting and enhancing our company's IT ecosystem. This is an excellent opportunity for an early-career IT professional who wants to grow their skills in a dynamic, global tech company. You'll work hands-on with modern IT systems, contribute to automation initiatives, and be part of a team that values innovation and continuous improvement.
As our IT Support & System Administrator, youll play a key role in maintaining system reliability and supporting our global workforce, and helping to build solutions that make everyone's work easier. This role offers significant growth potential and the chance to make a real impact on how we operate.
What am I going to do?
System Administration & Support
Administer and operate SaaS platforms in an enterprise environment.
Manage user lifecycle, permissions, and access controls across systems.
Support endpoint management (MDM), including device setup, configuration, and troubleshooting
Ensure operational stability of IT systems and provide structured support to a global workforce.
Maintain asset inventory and track hardware/software lifecycle management
IT Infrastructure & Operations
Support office and remote IT infrastructure, including network connectivity, Wi-Fi, and secure access solutions.
Assist with SSO/MFA enforcement according to defined security standards
Conduct routine system checks, updates, and preventive maintenance
Document IT processes, create SOPs, and maintain knowledge base articles
Participate in IT security audits and access reviews
Automation & Improvement
Assist in building and maintaining internal IT tools, scripts, and workflow automations
Take ownership of existing automation projects, ensuring they remain functional and up-to-date
Identify opportunities to streamline repetitive tasks through automation
Collaborate with the Cloud Engineering team on technical projects and system improvements
User Support & Training
Provide technical guidance and support to employees on IT systems, tools, and best practices
Troubleshoot issues with a service-oriented and professional approach.
Create and deliver training materials for new tools and system updates
Collaborate with teams to understand operational needs and improve IT support experience.

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 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.

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.

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.

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 System Administrator to join our expanding IT team. In this role, you will lead maintenance and troubleshooting of company systems, networks, and hardware to ensure smooth daily operations. It's a full-time job in a dynamic global company with an upbeat pace and great people. Responsibilities:
* Provide technical support to employees (hardware, software, and network issues).
* Assist in setting up and maintaining servers, workstations, and IT infrastructure.
* Monitor system performance and security.
* Install and update software, patches, and security updates.
* Manage user accounts and permissions.
* Help maintain backups and disaster recovery plans.
* Document IT procedures and troubleshoot issues as needed.

seeking a Linux system Administrator!?Job Description: Design, installation, and support of Linux servers (physical and virtual).
* Perform ongoing system administration tasks, including OS and application installation and upgrades, server performance tuning, Storage connectivity configuration, implementation of security hardening, troubleshooting, scripting, and more.
* Install and support physical Linux servers in Cluster configurations (using Veritas Cluster).
* Design, deploy, and support OpenShift Kubernetes platforms, including implementation of automation processes using ArgoCD.
* Install and support Kong API Management platform.
* Implement automation processes, including writing Roles and Playbooks using Ansible.