דרושים » מחשבים ורשתות » Senior IT System Admin - 2502

We are looking for an experienced Network Infrastructure Engineer to be part of the team that maintains, improves, and scales up our production environment. In this role, you will investigate complex production issues, improve our system resilience, monitoring tools, and automate methods and procedures to reduce workload and improve stability.
If you are an experienced Network and System engineer, working in a large-scale infrastructure engineering environment, and looking to boost your career by working for one of the industry leaders of the evolving cybersecurity industry, your place is with us.

This job is located in Tel Aviv (hybrid).
Key Responsibilities
Develop, implement, and manage the organization's data center networking.
Deploy, configure, and update network equipment, including switches and firewalls.
Monitor network performance, detect bottlenecks or connectivity issues, and implement necessary solutions.
Collaborate with cross-functional teams to ensure network security, data integrity, and compliance with industry best practices and regulations.
System Administration:
Administer and uphold the organization's data center servers, virtualization clusters, and operating systems.
Conduct regular system monitoring, troubleshooting, and performance tuning to ensure optimal functionality.
Install, configure, and upgrade server hardware, software, and related components.
Implement and maintain network security measures, encompassing firewalls, intrusion detection systems, and access controls.
Conduct vulnerability assessments, penetration testing, and security audits to identify and address potential risks.
Stay updated on the latest security threats and industry trends, proactively recommending and implementing security enhancements.

We are looking for a System Administrator to join the IT team.
The System Administrator will help manage the organizational IT infrastructure (which is mostly SaaS-based), Network Infrastructure, Servers on the cloud, Managing permissions to systems, meeting rooms, set up permissions, hardening devices, supporting user issues, setting up new users and devices, and performing other IT-related tasks.
Responsibilities
Develop and maintain the organizations infrastructure and system architecture, delivering professional, scalable, and high-quality solutions for complex challenges.
Continuously assess and update existing infrastructure technologies to ensure relevancy and effectiveness, identify areas for improvement to formulate future technology roadmaps.
Act as a tech support, provide technical support to employees for both simple and complex issues.
Plan, lead, and implement IT projects, including rollouts and infrastructure upgrades, collaboration with other teams (DevOps, Security), with full project management responsibility.
Embed security best practices into all infrastructure designs, including principles like Zero Trust, IAM, encryption standards, and regulatory compliance.
Oversee the network environment, ensuring optimal performance and security.
Be the administrator for Google Workspace and JumpCloud, including the management of the JumpCloud MDM and Applications, and Google Gmail, Calendar, Drive and other Google applications.
Maintain and manage the IT servers and resources hosted on AWS.
Configure, install, and maintain office technical equipment, including laptops, printers, monitors, Conference room technology, IT asset management and other peripherals.

We are seeking a skilled and proactive OpenShift Administrator with in-depth experience managing and supporting Red Hat OpenShift environments, along with strong knowledge of DELL storage systems and HPE servers, Ansible automation, and virtual networking technologies. The ideal candidate will play a critical role in maintaining, optimizing, and automating container platform infrastructure for mission-critical applications.

Key Responsibilities:
Deploy, configure, manage, and support Red Hat OpenShift Container Platform clusters (bare-metal or virtualized).
Maintain and monitor DELL/HPE servers and storage systems (e.g., PowerStore, Unity, Compellent) used in the container infrastructure.
Implement infrastructure as code using Ansible for automating configuration, deployment, and patching tasks.
Design, configure, and troubleshoot virtual networking elements including VXLAN, VLANs, bridges, and virtual switches (e.g., OVS, vSwitch).
Ensure high availability, performance tuning, and reliability of the OpenShift platform and associated infrastructure.
Work closely with development, security, and network teams to support DevOps pipelines and containerized applications.
Manage storage provisioning, performance optimization, and backup/recovery for virtual machines.
Apply security hardening, access controls, and auditing policies across OpenShift and supporting systems.
Provide documentation, runbooks, and training to other teams as needed.
Respond to incidents, perform root cause analysis, and contribute to continuous improvement initiatives.

We are looking for a System Administrator for our IT team to share the responsibilities for the companys IT infrastructure and user management.  We are looking for a competent System Administrator who is passionate about IT and security in various tech environments. In this position, you will help the IT manager with all the daily and ongoing tasks, from servers to helpdesk. This involves maintaining and improving the company infrastructure, network, and security, and ensuring the proper function of IT.
Responsibilities :
Maintenance and operation tasks of company IT infrastructure (cloud and hybrid on-prem)
Manage organizational identities including user accounts, service accounts, etc.
Network management including firewall and switches management
Microsoft 365 Administration: O365 Applications, Teams, SharePoint, Exchange
Manage organizational software licenses, and subscriptions
Manage IT equipment, stock, and purchasing
Users' environment management: badge permissions, network permissions (share folders on a server)
Support and troubleshoot end-users computer software and hardware issues
Operate service desk ticketing system
Maintain and manage IT assets inventory and licenses
Manage data backups. Ensure company data security, availability, and integrity

we are seeking a proactive and skilled System Administrator to join our expanding IT team.

In this role, you will be responsible for maintaining and optimizing our IT infrastructure, providing advanced technical support, and ensuring the smooth operation of our systems.



Key Responsibilities:

● Administer and maintain Windows and macOS environments, ensuring optimal performance and security.

● Manage and troubleshoot network infrastructure, including Fortinet firewalls, switches, and routers.

● Implement and maintain security protocols, including MFA and SSO.

● Support and manage SaaS applications

● Deploy, maintain, and troubleshoot antivirus and other security software.

● Provide advanced technical support to employees across global sites, resolving complex IT issues.

● Collaborate with vendors and suppliers to maintain and upgrade IT systems.

● Manage site responsibilities, including guest reception, vendor coordination, and alarm system oversight.

● Document system configurations and procedures.

seeking an enthusiastic, collaborative, and highly motivated hands-on IT Manager to join our company. We are looking for someone who thrives in a fast-paced environment and welcomes new challenges every day. The IT Manager will report directly to the COO while managing hosted and cloud-based IT systems in our Tel Aviv headquarters, directly supervising the helpdesk specialist, and ensuring robust support for corporate IT initiatives and projects. The position includes: Provide end-to-end IT professional support for colleagues and customers with empathy, patience, and excellent communication skills. Directly supervise and mentor the helpdesk specialist, ensuring timely and accurate resolution of technical issues to maintain high levels of user satisfaction. Oversee the maintenance, configuration, and reliable operation of computer systems, network servers, and our VMware environment. Define IT infrastructure strategy, architecture, and processes to align with organizational goals. Ensure the security of data, network access, and backup systems. Lead desktop and Help desk support efforts, ensuring all desktop applications, workstations, and related equipment issues are resolved promptly with minimal disruptions. Monitor performance and maintain systems according to requirements. Troubleshoot issues and outages effectively. Act as the focal point of contact for all IT services. Lead and support corporate IT initiatives, including projects related to the companys deployed solutions, by planning, coordinating, and implementing tasks to ensure successful execution.

We are seeking an experienced Linux and Windows Systems Administrator to join our IT team.

The ideal candidate will have strong skills in managing both Linux and Windows environments, with the ability to maintain system stability, security, and performance across our infrastructure.

Key Responsibilities
Administer, maintain, and troubleshoot Linux and Windows server environments
Configure and manage advanced DNS infrastructure
OS Image management including configuration and maintenance packages
Troubleshoot and resolve production issues in real time.
Manage Public Key Infrastructure (PKI) and Certificates
Create and maintain documentation for systems and processes

We are seeking an experienced Infrastructure Engineer. with strong Linux knowledge to join our team. The ideal candidate will be responsible for planning, implementing, and maintaining our IT infrastructure, with a focus on high-performance computing environments for VLSI workloads. Primary responsibilities will include managing and maintaining HPC infrastructure and Storage in Linux-based environments for new and existing customers. Support operational and reliability aspects of large-scale clusters with focus on performance at scale, real time monitoring, logging, and alerting. Engage in and improve the whole lifecycle of servicesfrom inception and design through deployment, operation, and refinement.
Key Responsibilities
Collaborating with FrontEnd, BackEnd, and Analog ASIC designers to develop and automate efficient, robust, and high-quality ASIC workflows and processes
Design, implement, and maintain on-premises and cloud-based IT infrastructure
Set up and manage Linux-based high-performance computing (HPC) clusters
Configure and optimize storage solutions (e.g., NFS, EMC Isilon, NetApp)
Implement and manage networking solutions, including 10/40 GB networks
Set up and maintain job distribution systems (e.g., Altair Accelerator)
Implement virtualization solutions (e.g., VMware)
Manage and optimize server deployments (e.g., HPE, Dell)
Implement and maintain data security strategies across multiple layers
Collaborate with cross-functional teams to ensure infrastructure meets the needs of R&D, Production, and other departments
Provide technical support and troubleshooting for infrastructure-related issues.

Our IT Manager will lead and operate the internal IT function, combining strong technical skills with independent leadership and planning capabilities. This role is responsible for supporting ~150 employees across a hybrid environment, overseeing IT operations, infrastructure, and enterprise tools, while managing projects, budgets, and vendors.

The ideal candidate is hands-on, service-oriented, and able to drive IT strategy, execution, and scale with minimal oversight.

Responsibilities
Own internal IT support and employee lifecycle processes, including onboarding, offboarding, and device management (Mac & Windows).
Manage and optimize IT infrastructure and Azure cloud environment.
Oversee office hardware, software licensing, budgets, vendor contracts, and procurement.
Administer IAM and SSO across multiple IdPs, ensuring secure access and endpoint protection.
Drive IT projects such as system rollouts, automation, and office moves.
Evaluate and implement tools to enhance security and productivity.
Support and mentor the IT team with a hands-on, service-focused approach.

MedOne is Israel's leading Data Center, Cloud, and Disaster Recovery (DRaaS) services provider, delivering secure, innovative solutions tailored to enterprise needs. As an official partner of NVIDIA and Zerto, MedOne ensures cutting-edge reliability and performance. MedOne is 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.