דרושים » מחשבים ורשתות » Linux system Administrator

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 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're seeking a technically curious and proactive IT Support & System Administrator to play a key role in supporting and enhancing Fiverr'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, you’ll 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.

Equal opportunities:
At Fiverr, we prioritize diversity. We celebrate difference and embed it into every aspect of our workplace and product, as well as our community. Fiverr is proud and committed to providing equal opportunity employment to all individuals regardless of race, color, religion, sex, sexual orientation, citizenship, national origin, disability, Veteran status, or any other characteristic protected by law. In addition, Fiverr will provide accommodation to individuals with disabilities or special needs.

our company Software Technologies is looking for a System Administrator that will operate, maintain, and help to improve our company growing IT infrastructure.
You will be a part of the IT Infrastructure team responsible for the design, maintenance and operation of a complex IT infrastructure.
Key Responsibilities
Operation and maintenance of Corporate IT Infrastructure
Planning and Implementation of global corporate IT projects.
Be an administrator of a large scale, worldwide production environment.
Developing and deploying customized virtualization, storages and backup solutions.
Managing and maintaining physical hardware servers (HPE, Dell, Lenovo) in global data centers.
Optimizing hardware and software to enable VMware integration.
Participating in on-duty shifts to support 24/7 critical production systems.

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.

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.

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)

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.

We are seeking an experienced CloudOps Engineer to join our OPS team. This is a pivotal role responsible for leading the organization's strategic transformation from a traditional VM-based environment to Azure Kubernetes Service (AKS) The CloudOps Engineer will steer the technical direction, working alongside DevOps and CloudOps units to ensure consistent, automated, and secure deployment processes. This position requires a blend of deep technical expertise in cloud infrastructure and DevOps practices, combined with leadership capabilities to mentor the team and drive architectural decisions.
Responsibilities:
Lead Technical Transformation: Spearhead the migration strategy of customer environments from legacy VM platforms to the AKS platform, ensuring efficiency and minimal downtime. Infrastructure Architecture & Automation: Design and manage secure, scalable cloud infrastructure (Azure/AWS). Manage and author complex Infrastructure as Code (IaC) using Terraform and Ansible as the organizational standard. Mentoring & Professional Leadership: Provide technical mentorship to OPS engineers, conduct infrastructure code reviews, and implement operational best practices. Cross-Functional Collaboration: Collaborate closely with Development and Project Delivery teams to ensure seamless application integration and deployments. Reliability & Availability: Ensure High Availability (HA) of systems, perform proactive monitoring, and handle high-level (Tier 3/4) troubleshooting of complex infrastructure issues.