senior linux systems administrator

CALNET

Job Overview We are seeking a highly skilled and motivated Linux System Administrator with active TS/SCI clearance to join our dynamic team. In this role, you will be responsible for managing and maintaining complex Linux-based IT infrastructure, ensuring system security, stability, and performance. Your expertise will support mission-critical operations, requiring a proactive approach to system architecture, security protocols, and network integration. This position offers an exciting opportunity to work on cutting-edge solutions within a fast-paced environment that values innovation and precision.Duties<ul><li>Install, configure, and maintain Linux operating systems across multiple environments, including physical servers and virtualized platforms such as VMware and ESXi.</li><li>Manage system security by implementing firewalls, VPNs, and access controls aligned with information security standards.</li><li>Monitor system performance using tools that support load balancing, RAID controller management, and system health diagnostics.</li><li>Develop and automate system administration tasks through scripting languages like Bash (Unix shell), Python, and PowerShell to streamline operations.</li><li>Design and implement scalable solutions utilizing service-oriented architecture (SOA), microservices, RESTful APIs, and cloud platforms such as AWS and Azure.</li><li>Collaborate with cross-functional teams to develop solution architecture that integrates databases like MySQL, PostgreSQL, Oracle, Microsoft SQL Server, and NoSQL databases.</li><li>Conduct regular system backups, disaster recovery planning, and patch management to ensure high availability and data integrity.</li><li>Support systems engineering efforts by designing robust system architectures that incorporate virtualization technologies such as Kubernetes containers and VMware environments.</li><li>Maintain comprehensive documentation of system configurations, procedures, and incident reports following SDLC (Software Development Life Cycle) best practices.</li></ul>Experience<ul><li>Proven experience in Linux system administration within a secure environment requiring TS/SCI clearance.</li><li>Strong understanding of operating systems including UNIX and Windows environments with hands-on experience in system design and architecture.</li><li>Demonstrated knowledge of computer networking concepts such as DNS, DHCP, TCP/IP protocols, load balancing solutions, VPNs, firewalls, and network security best practices.</li><li>Familiarity with DevOps tools like Jenkins, Git repositories, CI/CD pipelines, Docker containers, Kubernetes orchestration, and automation frameworks.</li><li>Experience working with IT infrastructure components including RAID controllers, SAN storage solutions, virtualization platforms (VMware vSphere/ESXi), and cloud services (AWS/Azure).</li><li>Skilled in scripting languages such as Bash shell scripting or Python for automation tasks; experience with PL/SQL or T-SQL is a plus.</li><li>Knowledge of solution architecture principles for enterprise systems involving RESTful APIs, microservices architecture, service-oriented architecture (SOA), and API management.</li><li>Background in systems engineering with a focus on system design for high availability environments supporting critical operations. Join us to leverage your expertise in Linux systems administration while contributing to vital national security missions! We value innovation-driven professionals who thrive in collaborative settings dedicated to excellence in IT infrastructure management.</li></ul>Pay: $90,000.00 - $120,000.00 per yearBenefits:<ul><li>401(k)</li><li>401(k) matching</li><li>Dental insurance</li><li>Health insurance</li><li>Life insurance</li><li>Paid time off</li><li>Vision insurance</li></ul>Work Location: In person

LINUX System Administrator with TS/SCI Clearance

Ceenex Global LLC

The L3 Systems &amp; Cloud Engineer will be responsible for the administration, monitoring, andmanagement of DHA&rsquo;s physical servers, virtual machines, Azure cloud infrastructure, and containerplatforms. The role ensures high availability, performance, security, and compliance of all managed environments while following ITIL-aligned processes and best practices.Key ResponsibilitiesServer / VM ManagementVMware ManagementAzure ManagementMicrosoft 365 ManagementContainer Platform ManagementGeneral ResponsibilitiesParticipate in change management, incident management, and problem management activities.Maintain procedural documentation and SOPs.Ensure compliance with organizational security policies and industry standards.Collaborate with cross-functional teams and vendors for seamless operations.Mandatory:CCIE certificationRequired Skills &amp; ExperienceMinimum 8 years of experience in enterprise server, cloud, virtualization, and container management.Strong expertise in Windows Server OS administration.Hands-on experience with VMware virtualization technologies (vSphere, vCenter, ESXi).Strong experience in Microsoft 365 administration and security.Hands-on experience with Azure IaaS/PaaS services, networking, and security.Proficient in container orchestration (Kubernetes/AKS/OpenShift).Experience with monitoring, backup, and DR solutions.Familiarity with ITIL processes (Incident, Change, Problem, Access, and Configuration Management).Strong troubleshooting, analytical, and problem-solving skills.Excellent communication and documentation skills.Preferred CertificationsMicrosoftAZ-104: Microsoft Azure AdministratorAZ-305: Microsoft Azure Solutions Architect (Optional)MS-102: Microsoft 365 Administrator ExpertMS-900: Microsoft 365 Fundamentals (Optional)VMwareVCP-DCV (VMware Certified Professional &ndash; Data Center Virtualization)VMware Advanced Certification (Optional) Containers / KubernetesCKA (Certified Kubernetes Administrator)ITIL / Service ManagementITIL 4 FoundationJob Type: Full-timePay: AED16,000.00 - AED20,000.00 per monthWork Location: In person

Senior L3 System Admin

Eccohost

Eccohost is seeking two highly skilled and Certified cPanel Professionals to join our core technical team. As an L3 System Administrator, you will be responsible for the health, security, and performance of our server infrastructure. You will handle the most complex technical escalations, ensuring 99.9% uptime for our global client base.Key Responsibilities<ul><li>L3 Technical Support: Resolve complex server-side issues escalated from L1/L2 teams, including kernel-level troubleshooting and advanced network debugging.</li><li>Infrastructure Management: Oversee high-volume server environments (WHM/cPanel) across providers like Hetzner, Vultr, and DigitalOcean.</li><li>Security &amp; Optimization: Manage server hardening using cPGuard, CloudLinux, and LiteSpeed. Monitor for and mitigate DDoS attacks and malware.</li><li>Automation &amp; Scripting: Develop and maintain Bash/Python scripts to automate routine server tasks and domain management.</li><li>Migration Expert: Execute seamless large-scale migrations (WordPress, WHM to WHM, and cross-platform) with zero data loss.</li><li>Email Deliverability: Manage complex mail configurations, including Exim troubleshooting, Amazon SES Smarthosting, and SMTP relay setups.</li></ul>Required Qualifications<ul><li>Certification: Must hold an active cPanel Professional (CPP) or cPanel Sales Professional (CPSP) certification. (cPanel Certified System Administrator preferred).</li><li>Experience: Minimum of 5+ years in web hosting or server administration.</li><li>OS Mastery: Expert knowledge of AlmaLinux, CloudLinux, and CentOS.</li><li>Web Stack: Deep understanding of LiteSpeed, Apache, Nginx, PHP-FPM, and MySQL/MariaDB optimization.</li><li>Technical Tools: Proficiency with Git/Git LFS, LVM partitioning, RAID configurations, and AWS CLI.</li><li>Problem Solving: Proven ability to fix &quot;unsolvable&quot; technical issues under pressure.</li></ul>Preferred Skills<ul><li>Experience with cPGuard security suite.</li><li>Familiarity with WHMCS or custom hosting billing dashboards.</li><li>Knowledge of backup solutions (JetBackup or Acronis).</li></ul>What We Offer<ul><li>Competitive salary based on experience and certifications.</li><li>Opportunity to work with cutting-edge server hardware and high-volume traffic.</li><li>A professional, growth-oriented environment within a leading hosting provider.</li></ul>Pay: Rs3,000.00 - Rs6,000.00 per hourWork Location: Remote

Senior L3 System Administrator (Certified cPanel Professional)

Public Cloud Services - PCS

<div>
 Job Title: Senior System Administrator
 
 
 Department: IT
 
 Location: El Sheikh Zayed, Giza
 
 Reporting To: Infrastructure Head
 
 Direct Reports: N/A
 
 
 
 
 
 
 
 Job Purpose
 
 
 The Senior System Administrator is responsible for designing, implementing, and maintaining the organization&rsquo;s IT infrastructure. This role ensures high availability, performance, security, and reliability of systems across on-premises and cloud environments, with a strong focus on virtualization, Windows &amp; Linux servers, Microsoft Azure, and Office 365.
 
 
 
 
 
 
 
 
 Key Duties &amp; Responsibilities
 
 
 Infrastructure &amp; Systems Management
 
 
 
 <ul>
 <li>
 
 Design, deploy, and manage virtualized environments using VMware, Hyper-V, or KVM.
 
 
 </li>
 <li>
 
 Install, configure, administer, and troubleshoot Windows and Linux servers.
 
 
 </li>
 <li>
 
 Monitor system performance and optimize configurations to ensure efficiency and stability.
 
 
 </li>
 <li>
 
 Ensure systems are updated with the latest patches, upgrades, and security updates.
 
 
 
 </li>
 </ul>
 Active Directory &amp; Identity Management
 
 
 
 <ul>
 <li>
 
 Manage Active Directory services, including user accounts, group policies, and permissions.
 
 
 </li>
 <li>
 
 Maintain secure access controls and directory services best practices.
 
 
 
 </li>
 </ul>
 Cloud &amp; Microsoft Services
 
 
 
 <ul>
 <li>
 
 Manage and administer Microsoft Azure services, including provisioning and configuration of cloud resources.
 
 
 </li>
 <li>
 
 Administer and support Microsoft Office 365 services to ensure optimal performance and user accessibility.
 
 
 
 </li>
 </ul>
 Security, Backup &amp; Recovery
 
 
 
 <ul>
 <li>
 
 Implement and maintain security controls, antivirus solutions, and access management policies.
 
 
 </li>
 <li>
 
 Develop, manage, and test backup and disaster recovery strategies to ensure data availability and integrity.
 
 
 
 </li>
 </ul>
 Database Administration
 
 
 
 <ul>
 <li>
 
 Manage and support MS SQL databases, including configuration, performance tuning, and backup strategies.
 
 
 
 </li>
 </ul>
 Documentation &amp; Collaboration
 
 
 
 <ul>
 <li>
 
 Create and maintain technical documentation for systems, configurations, and procedures.
 
 
 </li>
 <li>
 
 Collaborate with other IT teams to support applications and infrastructure services.
 
 
 </li>
 <li>
 
 Provide technical guidance and support to junior team members.
 
 
 
 </li>
 </ul>
 Troubleshooting &amp; Support
 
 
 
 <ul>
 <li>
 
 Diagnose and resolve hardware, software, and system issues on time.
 
 
 </li>
 <li>
 
 Provide advanced technical support to ensure minimal downtime.
 
 
 
 
 
 </li>
 </ul>
 Requirements
 
 
 Experience &amp; Qualifications
 
 <ul>
 <li>
 
 Education: Bachelor&rsquo;s degree in Computer Science, Information Technology, or a related field.
 
 
 </li>
 <li>
 
 Experience: Minimum of 5 years of hands-on experience in system administration, with strong exposure to virtualization, Windows, Linux, Azure, and Office 365.
 
 
 </li>
 <li>
 
 Certifications (Preferred):
 
 
 </li>
 <ul>
 <li>
 
 MCSE
 
 
 </li>
 <li>
 
 RHCE
 
 
 </li>
 <li>
 
 Azure Administrator Associate
 
 
 </li>
 <li>
 
 VMware Certified Professional (VCP)
 
 
 </li>
 </ul>
 </ul>
</div>

Senior System Admin

WorkForce

We&rsquo;re Hiring: System Administrator (DevOps) Doha, QatarJob Summary We are seeking a proactive System Administrator with DevOps experience to manage IT infrastructure, cloud environments, automation, and system security.Key Responsibilities<ul><li>Manage Linux and Windows servers, storage, and backup systems</li><li>Administer firewalls and network security (FortiGate, Cisco)</li><li>Work with AWS/Azure cloud and virtualization (VMs, Docker, Kubernetes)</li><li>Build and maintain CI/CD pipelines (Jenkins, GitLab CI, GitHub Actions)</li><li>Automate infrastructure using Terraform and Ansible</li><li>Monitor systems using Prometheus, Grafana, and ELK stack</li><li>Handle networking (DNS, VPN, VLANs) and troubleshooting</li><li>Ensure security compliance and optimize system performance</li></ul>Requirements<ul><li>Bachelor&rsquo;s degree in IT, Engineering, or related field</li><li>3+ years of experience in System Administration / DevOps</li><li>Strong experience with AWS/Azure, Linux, and Windows environments</li><li>Solid understanding of networking and scripting (Bash, Python, PowerShell)</li><li>Database knowledge (MySQL, PostgreSQL, MongoDB)</li></ul>Preferred <ul><li>AWS / Azure / Linux / DevOps certifications</li><li>Experience with monitoring and logging tools</li><li>Knowledge of security standards (ISO 27001, CIS)</li></ul>Contact: 30530016 Apply: bdm@workforceqatar.comJob Type: PermanentWork Location: In person

SYSTEM ADMINISTRATOR

Net Troopers Digital Solutions W.L.L.

Systems Administrator About the RoleNet Troopers Digital Solutions W.L.L. is seeking a skilled and motivated Systems Administrator to join our growing IT operations team in Kuwait City. This is an exciting opportunity for an IT professional who enjoys managing infrastructure, solving technical challenges, and ensuring smooth system performance across business environments.If you have strong experience in Windows Server administration, network support, cloud systems, and IT troubleshooting, this role offers a stable career path with growth into senior infrastructure and cloud engineering positions.Why This Job Is Attractive<ul><li>Competitive tax-free salary in Kuwait</li><li>Stable full-time IT position with career growth opportunities</li><li>Exposure to enterprise systems and cloud infrastructure</li><li>Supportive technical team environment</li><li>Opportunity to work with modern IT tools and security systems</li></ul>Key Responsibilities<ul><li>Install, configure, and maintain Windows Server environments</li><li>Manage and monitor network infrastructure (LAN/WAN, VPNs, firewalls)</li><li>Provide Tier 2 / Tier 3 technical support for internal users</li><li>Maintain system security, backups, and disaster recovery processes</li><li>Manage Active Directory, user access, and permissions</li><li>Monitor system performance and troubleshoot issues</li><li>Support cloud services (Microsoft Azure / AWS basics preferred)</li><li>Document IT procedures and infrastructure updates</li><li>Collaborate with IT and development teams on system improvements</li></ul>Requirements<ul><li>2&ndash;5+ years of experience in Systems Administration or IT Support</li><li>Strong knowledge of Windows Server (2016/2019/2022)</li><li>Experience with Active Directory and Group Policy</li><li>Understanding of networking concepts (DNS, DHCP, VPN, TCP/IP)</li><li>Familiarity with cybersecurity best practices</li><li>Basic experience with cloud platforms (Azure or AWS preferred)</li><li>Strong problem-solving and communication skills</li><li>Ability to work independently and in a team environment</li></ul>Nice to Have<ul><li>Linux server experience</li><li>Microsoft certifications (MCSA, Azure Administrator, CompTIA Network+)</li><li>Experience with virtualization (VMware / Hyper-V)</li><li>Scripting knowledge (PowerShell)</li></ul>Job TypeFull-timeSchedule<ul><li>Monday to Friday</li><li>Standard business hours with occasional on-call support</li></ul>Call to ActionIf you're a passionate IT professional ready to take the next step in your career, apply now and join a growing digital technology team in Kuwait City.Pay: KD1,100.000 - KD1,800.000 per monthWork Location: In person

Systems Administrator

Xavor Corporation

Location | DHA 6, Lahore (onsite) Experience | 2 &ndash; 4 YearWe are seeking a highly skilled and experienced Senior System &amp; Infrastructure Administrator to manage and maintain the organization&rsquo;s IT infrastructure, Microsoft 365 environment, enterprise systems, networks, and IT-related subscriptions. The ideal candidate will ensure system reliability, security, availability, and operational efficiency across all infrastructure services.Key Responsibilities Infrastructure &amp; Systems Administration <ul><li>Manage and maintain Windows and Linux servers</li><li>Monitor infrastructure performance, uptime, and system health</li><li>Configure and maintain virtualization platforms (VMware/Hyper-V)</li><li>Perform system upgrades, patch management, and preventive maintenance</li><li>Manage backup, recovery, and disaster recovery processes</li><li>Maintain storage systems and shared resources</li></ul>Microsoft 365 / Office 365 Administration <ul><li>Administer Microsoft 365 services including: o Exchange Online o Microsoft Teams o SharePoint</li><li>Online o OneDrive o Azure AD / Microsoft Entra ID</li><li>Manage user accounts, licenses, groups, and permissions</li><li>Configure security policies, MFA, conditional access, and compliance settings</li><li>Troubleshoot Microsoft 365-related issues</li><li>Monitor service health and optimize tenant performance</li></ul>Network Administration <ul><li>Configure and manage: o LAN/WAN networks o VPN connectivity o VLANs o DNS/DHCP o Firewalls and switches</li><li>Monitor network availability and troubleshoot connectivity issues</li><li>Ensure network security and performance optimization</li></ul>IT Security &amp; Compliance <ul><li>Implement security best practices across systems and networks</li><li>Manage endpoint security, firewall rules, and access controls</li><li>Conduct vulnerability assessments and system hardening</li><li>Monitor logs and respond to security incidents</li><li>Support compliance and audit requirements</li></ul>IT Subscription &amp; License Management <ul><li>Manage IT-related subscriptions and software licensing</li><li>Track renewal dates and vendor contracts</li><li>Optimize software usage and licensing costs</li><li>Coordinate with vendors for procurement and support renewals</li><li>Maintain inventory of enterprise software and subscriptions</li></ul>Automation &amp; Support <ul><li>Develop automation scripts for routine administrative tasks</li><li>Provide advanced technical support and troubleshooting</li><li>Maintain technical documentation and infrastructure diagrams</li><li>Support internal IT projects and infrastructure improvements</li></ul>Required Skills &amp; Qualifications Technical Skills <ul><li>Strong experience with Microsoft 365 Administration</li><li>Windows Server Administration</li><li>Linux Server Administration Active Directory &amp; Azure AD</li><li>Networking fundamentals and troubleshooting</li><li>Firewall and VPN configuration</li><li>Virtualization technologies</li><li>Backup and recovery solutions</li><li>PowerShell, Bash, or Python scripting</li><li>Infrastructure monitoring tools</li></ul>Preferred Qualifications <ul><li>Bachelor&rsquo;s degree in Computer Science, IT, or related field</li><li>Microsoft certifications (M365, Azure, Windows Server)</li><li>VMware or networking certifications are a plus</li></ul>Soft Skills <ul><li>Strong troubleshooting and analytical skills</li><li>Excellent communication abilities</li><li>Ability to work independently and manage priorities</li><li>Documentation and organizational skills</li><li>Team collaboration and leadership mindset Tools &amp; Technologies</li><li>Microsoft 365 Admin Center</li><li>Exchange Online</li><li>Microsoft Entra ID (Azure AD)</li><li>Windows Server</li><li>Linux</li><li>VMware / Hyper-V</li><li>Fortinet / pfSense / SonicWall</li><li>PowerShell / Bash / Python</li><li>Grafana / Zabbix / PRTG</li><li>Backup &amp; Recovery Platforms</li></ul>Application Question(s):<ul><li>Expected Salary?</li></ul>Work Location: In person

IT Manager

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