windows system administrator

<div>JT4, LLC provides engineering and technical support to multiple western test ranges for the U.S. Air Force, Space Force, and Navy under the Joint Range Technical Services Contract, better known as J-Tech II. JT4 develops and maintains realistic, integrated test and training environments and prepares our nation's war-fighting aircraft, weapons systems, and aircrews for today's missions and tomorrow's global challenges.

The System Administrator IV will work with post flight data management and provide support to a variety of customers to include flight test engineers and data analysts.

JOB DUTIES - ESSENTIAL FUNCTIONS

Evaluates system specifications, configures system, establishes standards, ensures hardware/software compatibility and maintains workstations and Microsoft (MS) Windows Operating Systems for stable performance.

Employee will be responsible for the following functions/duties:
<ul>
<li>Performs the daily operation of MS Win server software to include system security, appropriate access, configuration and backing up the system</li>
<li>Specifies network requirements, monitors locate area network (LAN) performance, troubleshoots networking hardware and ensures system is working properly according to specifications and parameters</li>
<li>Organizes and secures directory structure and assists / trains staff members in the use of department.</li>
<li>Data Management (DM) System, associated databases and Configuration Management (CM)/DM release procedures</li>
<li>Maintains and designs functional, visually esthetic web pages</li>
<li>Specifies hardware requirements and provides a Computer Authorization and Custodial Receipt Listing (CA/CRL) to track equipment configurations and identification logs</li>
<li>Serves as point of contact (POC) for problem reporting, incremental version updates and monitors yearly support contract</li>
<li>Makes recommendations for future hardware/software implementations and related process improvements, schedules, plans and performs system upgrades including the transition from design, test, production and documentation environments</li>
<li>Provides operational status as required</li>
<li>Uses established policies and procedures and subject matter knowledge to complete complex assignments requiring originality and ingenuity performed under minimum supervision with considerable latitude for independent contribution</li>
</ul>
<div>RANGE POSITION DESCRIPTION
</div>
The System Administrator IV will work with post flight data management and provide support to a variety of customers to include flight test engineers and data analysts. They will perform corrective and preventive maintenance procedures on all necessary equipment. Ideal candidate will be proficient with Windows OS and Windows Server 2016/2019/2022, LINUX Administration, Windows Domain Administration, Nutanix AHV and PRISM, Citrix VM Deployment, Network Switch Administration, Citrix License Administration, NVIDIA vGPU License Administration, Hardware Troubleshooting, Software Troubleshooting, DoD SCAP Benchmarks Scans, and Net Backup Administration. System Administrator IV must also be able to assist in the creation of Operating Instructions (OIs) as required. A successful candidate must be a team player, eager to learn, and just as eager to share his/her knowledge in order to strengthen the team. This position requires a current CompTIA Security+ CE certificate as well as the ability to maintain a DoD Secret level clearance.

REQUIREMENTS - EDUCATION, TECHNICAL, AND WORK EXPERIENCE

Associates or higher degree in Computer/Information Technology, or equivalent academic/technical training. Possess nine (9) years related experience or combination of experience in computer system basics and/or related areas of expertise. Must possess and apply a broad knowledge of principles, practices and procedures in computer science, graphics, and information systems.

In addition, a Systems Administrator IV must possess the following qualifications:
<ul>
<li>Must have specific experience in the use of MS window server environments and various computer-aided design/computer-aided manufacturing (CAD/CAM), database, MS Office and Web enabled applications</li>
<li>Must possess planning/organizing skills and must be able to work under deadlines</li>
<li>Employee is expected to routinely cross fields in the completion of somewhat difficult and varied assignments
</li><li>Must be capable of updating or repairing computer systems
</li><li>The candidate must possess a valid, state issued driver's license. Must be able to obtain and maintain security clearance. Must be a U.S. citizen.</li>
</ul>
<div>SALARY
</div>
The expected salary range for this position is $110,000 to $160,000 annually.

Note: The salary range offered for this position is a good faith description of the expected salary range this role will pay. JT4, LLC considers factors such as (but not limited to) responsibilities of the position, candidate's work experience, education/training, key skills, internal peer equity, as well as, market and business considerations when extending an offer.

BENEFITS
<ul>
<li>Medical, Dental, Vision Insurance
</li><li><ul><li>Benefits Active on Day 1</li>
</ul></li><li>Life Insurance</li>
<li>Health Savings Accounts/FSA's</li>
<li>Disability Insurance</li>
<li>Paid Time Off</li>
<li>401(k) Plan Options with Employer Match
</li><li><ul><li>JT4 will match 50%, up to an 8% contribution</li>
<li>100% Immediate Vesting
</li></ul></li><li>Tuition Reimbursement</li>
</ul>
<div>OTHER RESPONSIBILITIES
</div>
Each employee must read, understand, and implement the general and specific operational, safety, quality, and environmental requirements of all plans, procedures, and policies pertaining to their job.

WORKING CONDITIONS

This position involves work typical of an office environment with no unusual hazards. There is occasional lifting (up to 20 pounds), constant sitting and use of a computer terminal, constant use of sight abilities while writing, reviewing, and editing documents, constant use of speech/hearing abilities for communication, and constant mental alertness.

DISCLAIMER

The above statements are intended to describe the general nature and level of work being performed by people assigned to this classification. They are not intended to be construed as an exhaustive list of all responsibilities, duties and skills required of persons so classified.

Tasking is in support of a Federal Government Contract that requires U.S. citizenship. Some jobs may require a candidate to be eligible for a government security clearance, state-issued driver's license, or other licenses/certifications, and the inability to obtain and maintain the required clearance, license, or certification may affect an employee's ability to maintain employment.

SCC: CSAN6, JIT13, A1412TW</div>

System Administrator IV

Core42

<div>
 
 Overview
 
 
 
 
 About Us
 
 
 
 Core42, a G42 company, is a leading provider of sovereign cloud, AI infrastructure, and services. We deliver transformative technology solutions that empower individuals, enterprises, and nations to unlock the full potential of AI. With a mission to accelerate innovation and help our partners achieve ambitious goals, Core42 combines sovereign capabilities with scalable, high-performance compute infrastructure, positioning itself at the forefront of AI innovation in the Middle East and beyond. Learn more at www.core42.ai.
 
 
 
 The opportunity
 
 
 
 Wintel System Administrator is responsible for effective provisioning, installation/configuration, operation, and maintenance of systems hardware, software, and related Windows infrastructure. This relates to all technology, to include workstations, servers, printers, networks, and vendor specific hardware and software. Cloud Support, Cloud infrastructure Monitoring in Azure/ AWS/ G42, Azure/ AWS resources knowledge (VMs, VMSS, AKS, Database), VM Refresh, &amp; Change Management, Security
 
 
 
 Responsibilities
 
 
 
 
 Your key responsibilities
 
 
 
 <ul>
 <li>
 Good experience in IT operations, Windows Administration, Windows Server Patching, Vulnerability Remediation, OS hardening and performance tuning.
 </li>
 <li>
 Support and monitor cloud infrastructure hosted in Azure, including Virtual Machines, Azure AD, Resource Groups, Storage, and basic networking.
 </li>
 <li>
 Troubleshooting, analysis and of logging information for reporting of performance exceptions
 </li>
 <li>
 Proactively monitoring system performance and capacity planning
 </li>
 <li>
 Familiar with Windows Cluster, File Server, DFS, OS Performance troubleshooting Experience building, managing, and upgrading VMware virtualization environments
 </li>
 <li>
 Resolving Incident tickets, remote System Administration of Windows servers, resolve Level 1 &amp; 2 support
 </li>
 <li>
 Manage Active Directory infrastructure, including Group Policy, OU structure, replication, and troubleshooting authentication issues.
 </li>
 <li>
 Maintain and support Microsoft Exchange (on-prem and hybrid) environments
 </li>
 <li>
 Perform user and group management across AD, Microsoft 365, and Exchange Online.
 </li>
 <li>
 Administer and monitor Microsoft 365 services including SharePoint, Teams, and Intune.
 </li>
 <li>
 Deploy, manage, and upgrade virtualization platforms, including VMware vCenter, ESXi hosts, HyperV and Nutanix.
 </li>
 <li>
 Support on-prem and cloud servers, including security configurations, patching, and troubleshooting.
 </li>
 <li>
 Implement and support hybrid cloud models (Private, Public, and Hybrid), ensuring integration and security of workloads across environments.
 </li>
 <li>
 Ability to configure VMs and Web Applications through Azure Web Portal and Command Line Interface through PowerShell
 </li>
 <li>
 Basic Knowledge of Networking concepts (LAN, WAN, Firewall, Proxy Servers, Routers etc)
 </li>
 <li>
 Understanding of networking concepts including IP addressing, DHCP, DNS, etc.
 </li>
 <li>
 Remote Management of servers through ILO, DRAC and RSA
 </li>
 <li>
 Collaborate with other teams and team members to develop automation strategies and deployment processes
 </li>
 <li>
 Work closely with application support &amp; security teams to implement up-to-date patch levels and application specific feature configuration
 </li>
 <li>
 Perform advanced problem determination and root-cause-analysis
 
 
 </li>
 </ul>
 
 Qualifications
 
 
 
 
 What we&rsquo;re looking for
 
 
 
 <ul>
 <li>
 Required skills / qualifications
 </li>
 <li>
 Bachelor's degree or equivalent in Computer Science or a related field or equivalent work experience
 </li>
 <li>
 Certified Administrator AZ-104, AZ 900
 </li>
 <li>
 Experience 5 to 7 year as Wintel, Cloud administrator
 </li>
 <li>
 MCSD (Azure Solutions Architect) or MCSE (Cloud Platform and Infrastructure)
 </li>
 <li>
 Microsoft MCSA in Windows Server 2012R2 or 2016
 </li>
 <li>
 Microsoft MCSA in Office 365 and SharePoint Online
 </li>
 <li>
 Microsoft Azure Administrator Associate
 </li>
 <li>
 ITIL foundation certification
 </li>
 <li>
 Preferred skills / qualifications
 </li>
 <li>
 Strong Experience in Active Directory, Exchange, Office 365, Windows Server, Azure, AWS
 </li>
 <li>
 Hands-on knowledge of Exchange Server (2016/2019) and Exchange Online.
 </li>
 <li>
 Strong experience in hybrid on-premises to Cloud, private and multi-cloud and workload migration
 </li>
 <li>
 Good experience in Azure IaaS/PaaS, Monitoring, backups, security best practices.
 </li>
 <li>
 Previous experience in a help desk support and troubleshooting role.
 </li>
 <li>
 Previous experience supporting virtual servers and solving network issues.
 </li>
 <li>
 Previous experience in a 24x 7 managed services, hosted service company, or Network Operations Center environment a plus.
 </li>
 <li>
 Previous System administration and support experience (Windows operating systems; experience with mixed environments a plus).
 </li>
 <li>
 Previous experience with Kubernetes and experience with networking subnetting, routing and firewalls.
 </li>
 <li>
 Previous experience with Azure based deployments or other cloud platforms a plus.
 </li>
 <li>
 Demonstrated experience installing, configuring, and managing Microsoft Cloud Services such as Azure, Active Directory Federation Services (ADFS), Exchange Online, Intune, One Drive, SharePoint, and Teams
 </li>
 <li>
 Demonstrated experience installing, configuring and managing Windows Server 2012 - 2019 and Active Directory environments
 
 
 </li>
 </ul>
 
 What Working At Core42 Offers
 
 
 
 Join our diverse team of 1100+ employees representing 68 nationalities fostering an inclusive, innovative and collaborative environment. At Core42, we foster a culture grounded in trust, accountability, and high performance. We are united by our values:
 
 Grit
 
 , where we overcome challenges with resilience and determination;
 
 Passion
 
 , which drives us to pursue excellence in everything we do; and
 
 Impact
 
 , as we aim to inspire progress and create meaningful change. Our team members thrive in an environment where each person&rsquo;s contributions propel us forward, and together, we are committed to achieving extraordinary results.
</div>

Analyst - Systems Administration (Core42)

Shield Consulting Solutions

<div>**Active TS/SCI w/Polygraph REQUIRED** Please do not apply if you do not currently possess this level of clearance.
- 
 
Telework: None 
 
Basic Requirements:
<ul><li>Security+ Cert</li>
<li>15 years of experience as a System Administrator</li>
<li>Bachelor&rsquo;s degree in a technical discipline
<ul><li>5 additional years of experience as a System Administrator may be substituted for a degree</li>
</ul></li></ul> 
Job Description:
<ul><li>Provide administration and support for Windows Server 2019 and 2022 environments, including Active Directory, DNS, Certificate Authorities and manage Windows 10/11 client systems.</li>
<li>Administer and troubleshoot various Linux distributions (e.g., RHEL8/9, AmazonLinux 2023) within AWS.</li>
<li>Deploy, and maintain robust cloud environments, primarily within AWS, while also supporting existing on-premises server infrastructure.</li>
<li>Develop, implement and maintain automation scripts and configurations using SaltStack, Ansible, Bash and Python to streamline infrastructure provisioning, configuration management and deployment processes</li>
</ul>
 
Required Experience:
<ul><li>AWS cloud resources, including EC2, S3, VPC, IAM, and other core services.</li>
<li>SaltStack, Ansible, Bash and Python
</li><li>Windows Server 2019 and 2022 environments,</li>
<li>Linux distributions (e.g., RHEL8/9, Amazon Linux 2023) within AWS.</li>
</ul>
 
Salary: $165,000 - $175,000 annually 
- 
Excellent benefits package including 25 days PTO, 11 paid holidays, 100% employer-paid healthcare for employees and dependents &ndash; available day 1, 8% 401(k) employer match &ndash; immediate vesting.
 
 
Disclaimer: The salary range provided is an estimate based on current market conditions and may be adjusted based on factors such as experience, skills, and qualifications. The final salary offer will be determined after a thorough review of the candidate's background and alignment with the role. Please note that this range is subject to change and should be considered as a guideline rather than a definitive figure. 
 
Shield Consulting Solutions is an equal opportunity/affirmative action employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.</div>

Cloud Systems Engineer (Windows/Linux)

Boutiqaat

We are looking for a reliable, proactive, and technically skilled Senior System Administrator with 5+ years of hands-on experience to manage and support our IT infrastructure. The ideal candidate should have strong expertise in Windows administration, networking, and security systems. The role requires someone who can ensure smooth day-to-day operations and quickly resolve technical issues.Key Responsibilities:<ul><li>Manage and maintain servers, Active Directory, and overall IT infrastructure.</li><li>Configure and administer Fortigate Firewalls, Cisco routers, and switches.</li><li>Handle Veem backup solutions, including scheduling, monitoring, and recovery.</li><li>Manage and troubleshoot VOIP systems and related telephony infrastructure.</li><li>Administer and maintain IP surveillance Cameras systems.</li><li>Perform Windows Server and workstation administration, including troubleshooting PCs and network endpoints.</li><li>Monitor system and network performance and proactively resolve hardware, software, and connectivity issues.</li><li>Install, configure, update, and patch operating systems and business applications.</li><li>Ensure data security, system backups, disaster recovery, and compliance with IT policies.</li><li>Provide technical support to internal users and resolve IT-related issues efficiently.</li><li>Maintain accurate system documentation and IT asset records.</li></ul>Requirements (Must Have):<ul><li>5+ years of experience as a System Administrator or in a similar IT infrastructure role.</li><li>Strong hands-on experience with Veem Backup, Active Directory, and Windows Administration.</li><li>Solid experience in Firewalls configuration, especially Fortigate.</li><li>Good knowledge of Cisco networking &ndash; able to configure routers and switches.</li><li>Experience with VOIP systems and telephony troubleshooting.</li><li>Hands-on experience in Cameras administration (IP surveillance systems).</li><li>Ability to troubleshoot and resolve PC, network endpoints, and connectivity issues independently.</li></ul>Nice to Have:<ul><li>Linux administration experience.</li><li>Advanced knowledge of VOIP systems, including deploying IPBX.</li></ul>Application Question(s):<ul><li>How many years of work experience do you have with System Administration?</li><li>How many years of work experience do you have with VMware?</li><li>How many years of work experience do you have with Active Directory?</li><li>How many years of work experience do you have with Fortigate?</li><li>What's your Salary Expectation in KWD/month? (MANDATORY)</li><li>How soon you can join us? (If you can join immediately, Please mention&quot;0&quot;) (MANDATORY)</li></ul>Work Location: In person

Senior System Administrator

DCS Corp

<div><div>DCS Corp is seeking a Senior Information Systems Security Officer (ISSO) to support our customer at Nellis AFB, NV.
****This is a temporary position expected to last approximately 26 weeks, though the assignment may conclude sooner based on contract or customer needs.****
Essential Job Functions:
Ensure the confidentiality, integrity, and availability of classified Information Systems (IS) and data using Air Force Approved network engineering, information security standards and approved industry best practices.
Perform upgrades, security patches, back-ups, account maintenance, and access control maintenance.
Assist the customer with developing and sustaining enterprise Risk Management Framework (RMF) accreditation packages.
Providing Information System Security Operations support, integration services, technical assessments, and solutions to enable cybersecurity.
Apply Secure Technical Implementation Guide (STIG) best practices to classified and unclassified. information systems, networking equipment, and applicable software and applications.
Perform vulnerability risk assessment analysis to support authorization and accreditation.
Assist customer preparing and reviewing documentation to include System Security Plans (SSPs), Risk Assessment Reports, Authorization to Operate (ATO) packages, policies, and Security Controls. Traceability Matrices (SCTMs) and upload documents into eMASS or other databases.
Conduct periodic reviews and evaluations of required IS policies and procedures.
Support IS Security inspections, tests, and reviews.
Perform generation and collection of audit logs for IS.
Required Skills:
Due to the sensitivity of customer related requirements, US Citizenship is required.
A BS Degree in Computer Science or relevant field with at least 12 years of work experience.
Current Secret Clearance.
Must be compliant with DoD 8140.03 with CASP or CISSP certification.
Desired Skills:
Demonstrated Cybersecurity Analyst foundation with strong working knowledge and understanding of Cyber technologies, RMF process.
Strong foundation and working knowledge with Nessus, SCAP Compliance Checker, STIGs, ACAS, eMASS, hardening systems and applying IA controls.
Excellent verbal and written communication skills along with customer interaction and presentation capabilities required.
Familiarity with DoD system security accreditation processes and tools.
Experience as a Unix System Administrator, Cisco Network Administrator or Windows System Administrator background.</div></div>

Information Security Systems Officer

Saudi Business Machines

<div>Position Title: 
Senior Active Directory &amp; Exchange Administrator

Location: 
Saudi Arabia , Khobar

Education: 
Bachelor&rsquo;s Degree in Information Technology, Computer Science, or related field

Experience: 
10+ years of hands-on experience in Microsoft Active Directory and Exchange administration 
Experience working in large-scale enterprise environments (5+ years)

Monthly Salary Package: 
24,000.00 SAR

Qualifications &amp; Skills:
<ul>
<li>Strong proficiency in Microsoft technologies, security best practices, and API integrations &amp; Azure AD (Microsoft Entra ID)</li>
<li>Expertise in DNS, Windows Server (2012&ndash;2025), Active Directory Domains, Azure, Office 365, and Exchange Online</li>
<li>ADCS/PKI administration (Microsoft CA and DigiCert)</li>
<li>Solid understanding of IIS and core Internet protocols (TCP/UDP, HTTP, SMTP, FTP)</li>
<li>Basic knowledge of SQL Server</li>
<li>Experience with Identity and Access Management (IAM) and Privileged Access Management (PAM)</li>
<li>Certifications :
<ul><li>Microsoft 365 Certified</li>
<li>Microsoft Azure Administrator, Solutions Architect</li>
<li>Microsoft 365 Certified: Exchange Online Support Engineer Specialty</li>
<li>Microsoft Identity and Access Administrator</li>
<li>Administer Active Directory Domain Services</li>
<li>Windows Server Hybrid Administrator</li>
</ul>
</li></ul>Responsibilities:
<ul>
<li>Perform day-to-day administration of Windows Active Directory, including object maintenance and security</li>
<li>Troubleshoot and resolve complex issues across Active Directory, Exchange infrastructure, PKI, and Federation Services</li>
<li>Administer and maintain Windows Server (2012&ndash;2025), Domain Controllers, and authentication systems</li>
<li>Monitor health, backup, and restoration procedures for Active Directory</li>
<li>Document system components, changes, and ensure compliance</li>
<li>Manage ADFS infrastructure and Windows Domain services (DNS)</li>
<li>Configure and maintain PKI environments</li>
<li>Administer Exchange Server on-prem and Microsoft 365, including mail flow, SMTP, monitoring, reporting, and migration activities</li>
<li>Troubleshoot Exchange databases, antivirus applications, and messaging filters</li>
<li>Execute migrations to newer versions of Windows Server and Exchange</li>
<li>Utilize PowerShell and GUI tools for Exchange administration</li>
<li>Ensure Exchange design and processes align with Microsoft best practices</li>
<li>Manage change, release, performance, and availability for Exchange environments</li>
<li>Apply regular security updates and patches to Windows and Exchange servers</li>
<li>Support various access methods (POP, IMAP, OWA, MAPI, Outlook Anywhere) and mobile device management (ActiveSync)</li>
<li>Monitor mailbox quotas, resolve stuck emails, and maintain SLA compliance</li>
<li>Participate in scheduled patching and system maintenance activities</li>
</ul>
Work Pattern: 
Full-time, in-person

Interview: 
Remote</div>

Senior Active Directory & Exchange Administrator

GUC Center of Continuing Education

<div>
 
 Overview
 
 
 
 Senior-level systems administrator responsible for the stability, security, and continuous operation of enterprise systems across on-prem and cloud environments. Hands-on role with on-call responsibility.
 
 
 
 Key Responsibilities
 
 
 
 <ul>
 <li>
 Perform system maintenance, updates, patching, backups, and troubleshooting.
 </li>
 <li>
 Support system migrations, upgrades, and infrastructure improvements.
 </li>
 <li>
 Administer Windows Server environments: Active Directory, DNS, DHCP, WSUS, Group Policy.
 </li>
 <li>
 Manage identity and access across Active Directory and Azure AD.
 </li>
 <li>
 Operate virtualization platforms and enterprise storage systems.
 </li>
 <li>
 Manage backup and recovery operations, including restore testing.
 </li>
 <li>
 Run vulnerability remediation and patch management cycles.
 </li>
 <li>
 Administer endpoint management and security platforms.
 </li>
 <li>
 Monitor system health, performance, and availability; resolve incidents and prevent recurrence.
 </li>
 <li>
 Maintain asset inventory for servers, devices, licenses, and warranties.
 </li>
 <li>
 Provide escalation-level support to internal teams.
 </li>
 <li>
 Maintain clear technical documentation and operational records.
 </li>
 <li>
 Participate in on-call rotations and maintenance windows.
 
 
 </li>
 </ul>
 
 Requirements
 
 
 
 <ul>
 <li>
 8+ years of experience as a Systems Administrator or similar role.
 </li>
 <li>
 Strong hands-on experience with Windows Server and Active Directory environments.
 </li>
 <li>
 Experience with VMware or equivalent virtualization platforms.
 </li>
 <li>
 Experience with enterprise backup and storage platforms.
 </li>
 <li>
 Experience with Microsoft 365 and Exchange Online, including migrations.
 </li>
 <li>
 Basic scripting or automation using PowerShell and/or Bash.
 </li>
 <li>
 Experience with Azure or other major cloud platforms.
 </li>
 <li>
 Strong communication skills in English and Arabic.
 </li>
 <li>
 Relevant technical certifications are an advantage.
 
 
 </li>
 </ul>
 
 Working Conditions
 
 
 
 <ul>
 <li>
 Full-time position.
 </li>
 <li>
 On-call availability for critical system incidents.
 
 
 </li>
 </ul>
 
 Application Instructions
 
 
 
 Interested applicants are invited to submit their curriculum vitae to the GUC HR E-mail: &ldquo;hr@guc.edu.eg&rdquo; specifying in the subject: (Senior Systems Administrator) to facilitate the screening process
 
 
 Applications will be reviewed until position is filled. For best consideration, submit applications before 10th of May, 2026.
</div>

Senior Systems Administrator

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