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<h2 class="h5">Job description</h2> <div class="t-break" data-jb-field="description"> <span>Manage and maintain the company's IT infrastructure, including servers, networks, workstations, and end-user devices.<br> Install, configure, and support Windows Server, Microsoft 365, and business applications.<br> Monitor system performance and ensure the availability, reliability, and security of IT services.<br> Administer Active Directory, user accounts, email services, permissions, and access controls.<br> Configure and maintain network infrastructure, including switches, routers, Wi-Fi, firewalls, and VPN connectivity.<br> Administer and support the company's Odoo ERP system, including user management, system configuration, troubleshooting, and coordination with external vendors.<br> Provide technical support to Odoo ERP users and ensure the system operates efficiently to support business operations.<br> Perform system backups and ensure disaster recovery and business continuity procedures are in place.<br> Troubleshoot and resolve hardware, software, network, and connectivity issues.<br> Provide technical support to employees and deliver excellent IT services across the organization.<br> Manage IT assets, software licenses, and inventory.<br> Coordinate with external IT vendors and service providers when required.<br> Maintain accurate documentation of IT systems, procedures, and configurations.<br> Support IT projects, infrastructure upgrades, and future technology initiatives.<br> Opportunity to join a fast-growing organization.<br> Professional development and career growth opportunities.<br> Collaborative and dynamic work environment.<br> Bachelor's degree in Information Technology, Computer Science, or a related field.<br> 3–5 years of experience as an IT System Administrator or in a similar role.<br> Strong knowledge of Windows Server, Microsoft 365, Active Directory, and networking.<br> Hands-on experience with Odoo ERP administration and user support.<br> Experience with virtualization technologies (VMware or Hyper-V) is preferred.<br> Knowledge of cloud platforms (Microsoft Azure or AWS) is an advantage.<br> Strong troubleshooting, communication, and problem-solving skills.<br> Relevant certifications (Microsoft, Cisco, VMware, or CompTIA) are a plus.<br></span> </div><h2 data-automation-id="subHeaderPreferredCandidate" class="h5"> Preferred candidate </h2> <div class="row is-m v-align-top t-small bg-mute"> <div class="col is-3 p5" data-automation-id="label_Years_of_experience"> <b>Years of experience</b> </div> <div class="col is-9 p5" data-automation-id="data_Years_of_experience"> No experience required </div> </div> <div class="row is-m v-align-top t-small "> <div class="col is-3 p5" data-automation-id="label_Degree"> <b>Degree</b> </div> <div class="col is-9 p5" data-automation-id="data_Degree"> Bachelor's degree / higher diploma </div> </div>

<p>We are looking for Senior Linux System Administrators with strong hands-on experience in Red Hat Enterprise Linux (RHEL) and Kubernetes to administer and support the infrastructure underpinning an HPC environment. The role focuses on system reliability, security, performance, automation, and availability .</p><p><b><br></b></p><p><b>Key Responsibilities</b></p><ul><li>Administer and maintain RHEL/Linux servers and HPC compute nodes .</li><li>Install, configure, patch, upgrade, and troubleshoot Linux operating systems .</li><li>Manage and support Kubernetes clusters, nodes, and workloads .</li><li>Perform Linux performance tuning, system hardening, and troubleshooting .</li><li>Monitor system health, capacity, performance, and availability .</li><li>Automate infrastructure administration using Ansible, Shell scripting, Python , or similar tools.</li><li>Support integration between compute, storage, networking, Kubernetes, and HPC platforms .</li><li>Troubleshoot complex Linux, Kubernetes, and infrastructure issues.</li><li>Implement security best practices across Linux and Kubernetes environments.</li><li>Support incident resolution, root-cause analysis, and preventive actions.</li><li>Maintain system configurations, technical documentation, and operational procedures.</li></ul><p>Strong hands-on experience as a Linux System Administrator / Linux Engineer / RHEL Administrator .</p><p>Expert-level administration of Red Hat Enterprise Linux (RHEL) .</p><p>Strong experience with Kubernetes administration and cluster management .</p><p>Experience supporting HPC environments / compute clusters is highly preferred.</p><p>Strong knowledge of:</p><ul><li>RHEL / Linux</li><li>Kubernetes</li><li>Linux performance tuning</li><li>Linux patching and hardening</li><li>System monitoring</li><li>Troubleshooting</li><li>Capacity management</li><li>Strong automation/scripting experience with Ansible, Shell/Bash, Python , etc.</li><li>Experience integrating compute, storage, and networking infrastructure .</li></ul><p>RHCE Red Hat Certified Engineer: Mandatory</p><p>CKA Certified Kubernetes Administrator: Preferred</p><p><strong>Desired Candidate Profile</strong></p><p>Strong hands-on experience as a Linux System Administrator / Linux Engineer / RHEL Administrator .</p><p>Expert-level administration of Red Hat Enterprise Linux (RHEL) .</p><p>Strong experience with Kubernetes administration and cluster management .</p><p>Experience supporting HPC environments / compute clusters is highly preferred.</p><p>Strong knowledge of:</p><ul><li>RHEL / Linux</li><li>Kubernetes</li><li>Linux performance tuning</li><li>Linux patching and hardening</li><li>System monitoring</li><li>Troubleshooting</li><li>Capacity management</li><li>Strong automation/scripting experience with Ansible, Shell/Bash, Python , etc.</li><li>Experience integrating compute, storage, and networking infrastructure .</li></ul><p>RHCE Red Hat Certified Engineer: Mandatory</p><p>CKA Certified Kubernetes Administrator: Preferred</p>

Avensys is a reputed global IT professional services company headquartered in Singapore. Our service spectrum includes enterprise solution consulting, business intelligence, business process automation and managed services. Given our decade of success, we have evolved to become one of the top trusted providers in Singapore and service a client base across banking and financial services, insurance, information technology, healthcare, retail and supply chain. We are currently looking to hire " Window System Admin" for Jeddah Saudi Arabia Experience - 8+ years Kindly share updated resume to parul.sharma@aven-sys.comLocation: Jeddah SA<br>Contract - 3 Months extendable Job Description In-depth knowledge of Windows Server operating systems and services. Advance understanding of Active Directory, including group policy management and DNS. Experienced on virtualization technology like VMware and VCF components. Proficiency in scripting languages such as Power Shell for automation and management tasks. Troubleshooting skills for common hardware and software problems. Strong grasp of network infrastructure, including TCP/IP, DHCP, and DNS. Experience with backup and disaster recovery solutions. Ability to diagnose and resolve complex system and network issues. Knowledge of enterprise applications such as Exchange, Citrix, and SCCM. Ability to perform systems tasks, close VA/CR findings. Familiarity with security best practices, including patch management and access controls. Strong analytical and problem solving abilities. Excellent communication and documentation skills for team collaborations. Require to work on shifts.<br><br>WHAT’S ON OFFERYou will be remunerated with an excellent base salary and entitled to attractive company benefits. Additionally, you will get the opportunity to enjoy a fun and collaborative work environment, alongside a strong career progression. To submit your application, please apply online or email your UPDATED CV in Microsoft Word format to parul.sharma@aven-sys.com. Your interest will be treated with strict confidentiality. CONSULTANT DETAILSConsultant Name: Parul Sharma Avensys Consulting Pte Ltd EA Licence 12C5759Privacy Statement: Data collected will be used for recruitment purposes only. Personal data provided will be used strictly in accordance with the relevant data protection law and Avensys' personal information and privacy policy.

<h2 class="h5">Job description</h2> <div class="t-break" data-jb-field="description"> <span>We are looking for Senior Linux System Administrators with strong hands-on experience in Red Hat Enterprise Linux (RHEL) and Kubernetes to administer and support the infrastructure underpinning an HPC environment.<br> The role focuses on system reliability, security, performance, automation, and availability .<br> Key Responsibilities Administer and maintain RHEL/Linux servers and HPC compute nodes .<br> Install, configure, patch, upgrade, and troubleshoot Linux operating systems .<br> Manage and support Kubernetes clusters, nodes, and workloads .<br> Perform Linux performance tuning, system hardening, and troubleshooting .<br> Monitor system health, capacity, performance, and availability .<br> Automate infrastructure administration using Ansible, Shell scripting, Python , or similar tools.<br> Support integration between compute, storage, networking, Kubernetes, and HPC platforms .<br> Troubleshoot complex Linux, Kubernetes, and infrastructure issues.<br> Implement security best practices across Linux and Kubernetes environments.<br> Support incident resolution, root-cause analysis, and preventive actions.<br> Maintain system configurations, technical documentation, and operational procedures.<br> Strong hands-on experience as a Linux System Administrator / Linux Engineer / RHEL Administrator .<br> Expert-level administration of Red Hat Enterprise Linux (RHEL) .<br> Strong experience with Kubernetes administration and cluster management .<br> Experience supporting HPC environments / compute clusters is highly preferred.<br> Strong knowledge of: RHEL / Linux Kubernetes Linux performance tuning Linux patching and hardening System monitoring Troubleshooting Capacity management Strong automation/scripting experience with Ansible, Shell/Bash, Python , etc.<br> Experience integrating compute, storage, and networking infrastructure .<br> RHCE – Red Hat Certified Engineer: Mandatory CKA – Certified Kubernetes Administrator: Preferred</span> </div><h2 data-automation-id="subHeaderPreferredCandidate" class="h5"> Preferred candidate </h2> <div class="row is-m v-align-top t-small bg-mute"> <div class="col is-3 p5" data-automation-id="label_Years_of_experience"> <b>Years of experience</b> </div> <div class="col is-9 p5" data-automation-id="data_Years_of_experience"> No experience required </div> </div> <div class="row is-m v-align-top t-small "> <div class="col is-3 p5" data-automation-id="label_Degree"> <b>Degree</b> </div> <div class="col is-9 p5" data-automation-id="data_Degree"> Bachelor's degree / higher diploma </div> </div>

<h3 >About the University of Business &amp; Technology</h3> <p >The <strong >University of Business &amp; Technology</strong> is a leading educational institution committed to providing high-quality learning experiences. We are currently seeking a dedicated professional to join our technology team in <strong >Jeddah, Makkah, Saudi Arabia</strong>. This <strong >full-time</strong> role is integral to supporting our digital learning infrastructure and ensuring seamless operation of academic systems.</p> <h3 >The Role: Software Engineer / System Administrator</h3> <p >We are looking for a <strong >Software Engineer / System Administrator</strong> to manage and enhance our learning management systems. This position requires hands-on expertise with <strong >Blackboard LMS</strong>, combining software development skills with system administration capabilities to ensure robust and integrated educational technology solutions. The successful candidate will play a crucial role in maintaining and evolving the university's digital learning environment, supporting both technical functionality and user experience.</p> <h3 >Key Responsibilities</h3> <ul > <li >Develop, customize, administer, and maintain Blackboard LMS and its associated applications to meet institutional needs.</li> <li >Build and support integrations between Blackboard and other enterprise systems, utilizing APIs and web services for seamless data flow and interoperability.</li> <li >Develop and maintain custom applications, extensions, and automation tools to enhance system functionality and efficiency.</li> <li >Support integrations with various critical university systems, including SIS, ERP, HR, CRM, identity management, and third-party learning platforms.</li> <li >Troubleshoot technical, system, and integration-related issues promptly to ensure continuous and reliable operation of learning systems.</li> </ul> <h3 >Required Qualifications and Experience</h3> <ul > <li >Demonstrated hands-on experience with <strong >Blackboard LMS</strong> is essential for this role.</li> <li >A minimum of <strong >0-1 years</strong> of professional experience in a software engineering or system administration capacity.</li> </ul> <h3 >Work Environment and Location</h3> <p >This is a <strong >full-time</strong> position requiring on-site presence. The role is based at the university's facilities in <strong >Jeddah, Makkah, Saudi Arabia</strong>, contributing directly to the local academic community and its technological advancements.</p> <h3 >Application Process</h3> <p >Interested candidates who meet the specified qualifications are invited to submit their application. Further details regarding the salary will be provided and discussed confidentially during the interview stages.</p>

<h3 >About the University of Business &amp; Technology</h3> <p >The <strong >University of Business &amp; Technology</strong> is a leading educational institution committed to providing high-quality learning experiences. We are currently seeking a dedicated professional to join our technology team in <strong >Jeddah, Makkah, Saudi Arabia</strong>. This <strong >full-time</strong> role is integral to supporting our digital learning infrastructure and ensuring seamless operation of academic systems.</p> <h3 >The Role: Software Engineer / System Administrator</h3> <p >We are looking for a <strong >Software Engineer / System Administrator</strong> to manage and enhance our learning management systems. This position requires hands-on expertise with <strong >Blackboard LMS</strong>, combining software development skills with system administration capabilities to ensure robust and integrated educational technology solutions. The successful candidate will play a crucial role in maintaining and evolving the university's digital learning environment, supporting both technical functionality and user experience.</p> <h3 >Key Responsibilities</h3> <ul > <li >Develop, customize, administer, and maintain Blackboard LMS and its associated applications to meet institutional needs.</li> <li >Build and support integrations between Blackboard and other enterprise systems, utilizing APIs and web services for seamless data flow and interoperability.</li> <li >Develop and maintain custom applications, extensions, and automation tools to enhance system functionality and efficiency.</li> <li >Support integrations with various critical university systems, including SIS, ERP, HR, CRM, identity management, and third-party learning platforms.</li> <li >Troubleshoot technical, system, and integration-related issues promptly to ensure continuous and reliable operation of learning systems.</li> </ul> <h3 >Required Qualifications and Experience</h3> <ul > <li >Demonstrated hands-on experience with <strong >Blackboard LMS</strong> is essential for this role.</li> <li >A minimum of <strong >0-1 years</strong> of professional experience in a software engineering or system administration capacity.</li> </ul> <h3 >Work Environment and Location</h3> <p >This is a <strong >full-time</strong> position requiring on-site presence. The role is based at the university's facilities in <strong >Jeddah, Makkah, Saudi Arabia</strong>, contributing directly to the local academic community and its technological advancements.</p> <h3 >Application Process</h3> <p >Interested candidates who meet the specified qualifications are invited to submit their application. Further details regarding the salary will be provided and discussed confidentially during the interview stages.</p>

<h2 class="h5">Job description</h2> <div class="t-break" data-jb-field="description"> <span>Job Purpose: We are seeking a skilled Senior Windows System Administrator to oversee and manage Windows Server environments, Active Directory, DHCP, DNS, and daily operational workloads.<br> The ideal candidate will have extensive experience in Windows system administration, troubleshooting, security best practices, and infrastructure optimization to ensure a stable and efficient IT environment.<br> Key Responsibilities: • Windows Server Administration: Maintain, configure, and optimize Windows Server environments (2016, 2019, 2022).<br> • Active Directory Management: Administer Active Directory (AD), Group Policies (GPO), authentication, and user/group management.<br> • Network Services: Configure and manage DNS, DHCP, and other core network services to ensure seamless connectivity and efficient name resolution.<br> • Security &amp; Compliance: Implement security hardening, access control policies, patching, and compliance measures to safeguard systems.<br> • Performance Monitoring &amp; Troubleshooting: Proactively monitor system performance, identify bottlenecks, and resolve issues using Windows Performance Monitor, Event Viewer, and third-party tools.<br> • Backup &amp; Disaster Recovery: Implement and maintain backup and recovery strategies using tools like Veeam, Windows Backup, or third-party solutions.<br> • Automation &amp; Scripting: Develop and maintain PowerShell scripts to automate administrative tasks and improve operational efficiency.<br> • Incident &amp; Change Management: Follow ITIL best practices for incident response, change management, and service request handling.<br> • Cloud &amp; Hybrid Integration: Work with Azure Active Directory (AAD), Microsoft 365, and hybrid identity solutions.<br> • Documentation &amp; Collaboration: Maintain clear documentation of infrastructure configurations, policies, and standard operating procedures (SOPs).<br> Qualifications: • Education: Bachelor’s degree in Computer Science, Information Technology, or equivalent experience.<br> • Experience: 7+ years of experience as a Windows System Administrator handling enterprise workloads.<br> • Certifications: Microsoft Certified: Windows Server Hybrid Administrator Associate, Azure Administrator Associate, or MCSE (preferred).<br> • Technical Proficiency: • Deep expertise in Windows Server administration, Active Directory, Group Policies, and domain services.<br> • Strong knowledge of DNS, DHCP, and networking fundamentals.<br> • Experience with security best practices, access controls, and patch management.<br> • Proficiency in PowerShell scripting for automation and administration.<br> • Hands-on experience with backup solutions, disaster recovery strategies, and high availability setups.<br> • Experience working with virtualization technologies (VMware, Hyper-V, OCI).<br> • Strong troubleshooting and problem-solving skills in enterprise IT environments.<br></span> </div><h2 data-automation-id="subHeaderPreferredCandidate" class="h5"> Preferred candidate </h2> <div class="row is-m v-align-top t-small bg-mute"> <div class="col is-3 p5" data-automation-id="label_Years_of_experience"> <b>Years of experience</b> </div> <div class="col is-9 p5" data-automation-id="data_Years_of_experience"> No experience required </div> </div> <div class="row is-m v-align-top t-small "> <div class="col is-3 p5" data-automation-id="label_Nationality"> <b>Nationality</b> </div> <div class="col is-9 p5" data-automation-id="data_Nationality"> Saudi Arabia </div> </div> <div class="row is-m v-align-top t-small bg-mute"> <div class="col is-3 p5" data-automation-id="label_Degree"> <b>Degree</b> </div> <div class="col is-9 p5" data-automation-id="data_Degree"> Bachelor's degree / higher diploma </div> </div>

System Administrator Location: Riyadh, Saudi Arabia Work arrangement: On-site Employment type: Full-time<br>Company Description Traverse Health is an international real-world evidence provider specializing in emerging markets and digital innovation across healthcare and life sciences. We develop advanced digital solutions that help healthcare organizations and pharmaceutical, biotechnology, and medical-device companies unlock the value of patient data. By connecting healthcare providers with the life-sciences industry, Traverse Health enables data-driven decision-making and supports better patient outcomes. Our services also support contract research organizations, health insurers, healthtech companies, and drug-discovery organizations—creating measurable, real-world value throughout the healthcare ecosystem.<br>Role Overview We are seeking a hands-on System Administrator to manage our servers, workplace technology, user access, cloud infrastructure, and core business systems. The successful candidate will help maintain a secure, reliable, and well-documented IT environment while providing responsive support to users.<br>Key Responsibilities Administer Linux- and Windows-based servers, virtual machines, and Windows workstations. Provision, modify, and deprovision user accounts throughout the employee lifecycle. Troubleshoot user access, authentication, VPN, connectivity, and system availability issues. Administer roles, permissions, and role-based access controls, including within IRIS and Apache Superset. Maintain an accurate inventory of:Systems and infrastructure assets User and administrative accounts System owners and administrators Access privileges and credential ownership Workstations, servers, virtual machines, and software licenses Manage Microsoft 365 accounts, licenses, groups, and access policies. Monitor server and workstation health, performance, storage capacity, availability, and outages. Verify backup completion and periodically confirm recovery readiness. Support containerized environments; assist with Kubernetes administration where applicable. Support infrastructure hosted on cloud platforms such as Google Cloud Platform and Huawei Cloud. Use or learn infrastructure automation tools, including Ansible and Terragrunt. Coordinate with cloud, VPN, software, hardware, and other technology vendors. Manage software licenses, renewals, usage, and allocation. Provide secure remote support using tools such as Any Desk. Maintain technical documentation, operating procedures, system records, and the internal knowledge base. Identify opportunities to automate routine administration and improve security, reliability, and operational efficiency. Participate in incident response and infrastructure maintenance activities when required.<br>Systems and Technologies Linux and Windows Server Windows workstations Microsoft 365IRISApache Superset Notion Any Desk Virtual machines VPN and remote-access solutions Containers and Kubernetes Google Cloud Platform Huawei Cloud Ansible Terragrunt<br>Required Qualifications Professional experience in system administration or IT infrastructure support. Practical knowledge of Linux and Windows operating systems. Experience with user account administration, permissions, and access troubleshooting. Understanding of networking fundamentals, VPNs, authentication, storage, backups, and system monitoring. Ability to diagnose technical problems methodically and communicate solutions clearly. Strong documentation and organizational skills. English proficiency at B2 level or higher. Ability to work on-site in Riyadh. Preferred Qualifications Experience with containers and basic Kubernetes administration. Exposure to Google Cloud Platform, Huawei Cloud, or a comparable cloud platform. Familiarity with infrastructure-as-code or configuration-management tools, particularly Ansible and Terragrunt. Programming or scripting experience using Bash, Power Shell, Python, or a similar language. Experience administering Microsoft 365 and business intelligence platforms. Familiarity with IT asset, license, vendor, and knowledge-base management. Knowledge of security best practices, least-privilege access, and backup recovery procedures.<br>Ideal Candidate You are dependable, security-conscious, and comfortable taking ownership of day-to-day IT operations. You enjoy troubleshooting, keep accurate records, communicate well with both technical and non-technical colleagues, and are motivated to learn new infrastructure and automation technologies.

<h3 >About DeepSource and the Role</h3> <p >DeepSource is seeking a <strong >Senior Linux System Administrator (HPC)</strong> to join our team in Riyadh, KSA. This is a full-time position focused on administering and supporting the critical infrastructure for a High-Performance Computing (HPC) environment. The role requires strong hands-on experience with Red Hat Enterprise Linux (RHEL) and Kubernetes, ensuring the stability and efficiency of our systems.</p> <h3 >Role Purpose</h3> <p >The primary purpose of this role is to maintain and enhance the underlying infrastructure that supports DeepSource's HPC operations. A key focus will be on system reliability, security, performance optimization, automation of processes, and ensuring high availability across all platforms. The successful candidate will play a crucial part in the operational excellence of our computing environment.</p> <h3 >Key Responsibilities</h3> <ul > <li >Administer and maintain RHEL/Linux servers and HPC compute nodes.</li> <li >Install, configure, patch, upgrade, and troubleshoot Linux operating systems.</li> <li >Manage and support Kubernetes clusters, nodes, and workloads.</li> <li >Perform Linux performance tuning, system hardening, and troubleshooting.</li> <li >Monitor system health, capacity, performance, and availability.</li> <li >Automate infrastructure administration using Ansible, Shell scripting, Python, or similar tools.</li> <li >Support integration between compute, storage, networking, Kubernetes, and HPC platforms.</li> <li >Troubleshoot complex Linux, Kubernetes, and infrastructure issues.</li> <li >Implement security best practices across Linux and Kubernetes environments.</li> <li >Support incident resolution, root-cause analysis, and preventive actions.</li> <li >Maintain system configurations, technical documentation, and operational procedures.</li> </ul> <h3 >Required Experience and Qualifications</h3> <p >Candidates should possess strong hands-on experience in Red Hat Enterprise Linux (RHEL) and Kubernetes. While this is a senior role, the stated experience requirement is <strong >0-1 year</strong>. Proficiency in automation tools such as Ansible, Shell scripting, or Python is essential for infrastructure administration. A solid understanding of system reliability, security, performance, and availability principles is also required.</p> <h3 >Work Environment and Location</h3> <p >This is a full-time position based in <strong >Riyadh, KSA</strong>. The role involves working within a dynamic High-Performance Computing environment, collaborating to ensure robust and secure infrastructure operations.</p> <h3 >Application Information</h3> <p >Interested candidates are invited to apply for this position. The salary for this role will be discussed during the interview process.</p>

Company Description SAT Microsystems is a leading IT service provider delivering innovative solutions that reduce business costs and complexity across Saudi Arabia, the UAE, and multiple international markets. Hundreds of organizations worldwide rely on SAT Microsystems to secure, manage, and support their IT operations, giving the company deep insight into emerging technologies and industry trends. The company’s portfolio spans managed IT services, IT infrastructure support, database and application solutions, desktop support, cybersecurity (SOC), RPA, IT outsourcing, IoT solutions, and chatbots. SAT Microsystems also provides cloud services, NOC services, AI and automation solutions, and business process outsourcing (BPO), helping clients advance their digital transformation initiatives. Role Description The L3 System Administrator role is a full-time, on-site position based in Riyadh. This role is responsible for advanced system administration activities, including managing and optimizing servers, operating systems, and core infrastructure services. The L3 System Administrator handles complex incidents and escalations, performs in-depth troubleshooting, and provides technical guidance to L1/L2 support teams. Daily tasks include monitoring system performance, implementing security and backup strategies, applying patches and upgrades, and documenting configurations and procedures. The role collaborates closely with network, security, and application teams to ensure high availability, reliability, and compliance across client environments. Key Responsibilities:• Design, install, configure, implement, and maintain Windows servers across multiple sites.• Design, install, configure, implement, and maintain Azure Virtual Desktop AVD cloud service• Managing Microsoft Exchange on-premises, M365 and MS Intune.• Understanding backups, recovery, and system upgrades.• Working on windows server 2016 to 2022 roles and features.• Understanding RDS CAL service.• Administration of VMware ESXI infrastructure, including setting up, configuring, and troubleshooting.• Manage Azure cloud resources and services, ensuring cost-effectiveness, security, and scalability.• Implement and manage Azure Virtual Desktop and Horizon VDI Components.• Working knowledge of Hyperconverged infrastructure “HCI” like Nutanix, VxRail, Azure Stack ...etc.• Manage and maintain the Active Directory Domain Controller, including users, groups, OUs, and permissions.• Manage and maintain all windows server services like DNS, DHCP, WSUS, FTP, SFTP, WDS.• Design, implement, and troubleshoot Group Policies to enforce company security and operational standards.• Handle tasks using tools like AD Manager, AD Audit, AD Sync ...etc.• Should be able to perform AD and all related services health check.• Understand, Implement and manage the Certificate Authority infrastructure.• Maintain and administer MFA (Multi-Factor Authentication) to bolster system and data security.• Must have general understanding about networking core concepts and must be able to actively participate in general issues.• Regularly monitor system logs and alerts to maintain system health and security.• Maintain availability of PAM (Privileged Access Management) and understanding of its core components.• Working on vulnerability remediation for windows sever OS, services, Nutanix, VMware... etc.<br>Who you are:• 10+ Years prior experience in an IT support position.• Strong working knowledge of Power Shell scripting or any automation tools and scripts• Understanding core concepts of cloud services like O365, MS teams, Azure AD, Share Point• Excellent knowledge of server administration, Patch Management & OS specific debugging tool• Good understanding of monitoring systems like PRTG, SCOM, Solar Winds.• Provide technical hands-on support at a L3 level for incident and request management including resolution of escalated incidents, problems or changes from L1 support.• Responsible for Problem management and root cause analysis for repeated incidents or outages.• Ability to work and collaborate in a team environment.• Good understanding of ITIL processes and tools like Service Now, BMC remedy, SCSM, Manage Engine …etc.• Responsible to provide support on-call, out of office hours including emergencies and routine maintenance windows.• Provide technical support, guidance, and expertise to junior staff members.• Collaborate with other departments and vendors for system integration and upgrades.• Document procedures, configurations, and instructional guides for the team.

This position functions around the clock, 24/7/365, to deliver extensive support for the enterprise RHEL server environment. The role involves the installation, configuration, management, operation, and maintenance of all RHEL server systems and RHEL Clusters (including Pacemaker). It is essential to ensure system stability through daily operations, patch management, monitoring, and troubleshooting, as well as providing support for SAP environments that operate on RHEL.<br><br>Key Responsibilities:<br><br>Install, configure, and manage Linux servers and applications to ensure optimal performance and high availability Monitor system performance, perform routine maintenance, and apply updates as needed Identify and resolve issues related to the operating system, hardware, and network configurations Implement and enforce security best practices within Linux environments, including firewalls, user permissions, and file integrity measures Assist in the deployment and management of applications hosted on Linux servers Document system configurations, procedures, and troubleshooting documentation for reference by the team Support backup and recovery processes to maintain data integrity and availability Collaborate with development teams to enhance deployment processes and ensure effective integration of Linux applications. Ensure that all RHEL systems are managed in accordance with vendor recommendations and security best practices, while also maintaining compliance with NCA, NIC, and SEC Cybersecurity regulations Contribute to the management of the operating system lifecycle, including planning for version upgrades and decommissioning Install, configure, manage, operate, and maintain RHEL server systems and clusters (e.g., RHEL 7, 8, 9). Provide daily operational support, including OS installation, monitoring, troubleshooting, virus protection, and resource management. Manage Red Hat HA Extension (PACEMAKER) clusters and support SAP, SAP HANA, and SAP S/4HANA environments on the RHEL platform. Regularly review system logs and OS behavior to proactively monitor and address potential issues Build strong relationships with the ERP, application, database, and web hosting teams for daily support, troubleshooting, and scheduled maintenance activities. Manage and maintain client agents for server monitoring (SCOM, App Dynamic) and server management (SCCM). Create and maintain technical and detailed design documentation, as well as technical operation documentation. Create, maintain, and delete user/group accounts and implement account policies. Raise and manage support tickets with Red Hat, including troubleshooting, log collection, and follow-up<br><br>Requirements<br><br>Requirements:<br><br>Degree: Bachelor's degree in Computer Science, Information Technology, or a related field Years of Experience: 3-5+ years of practical experience in Linux System Administration (RHEL/Cent OS) in an enterprise context Special Technical Skills: Proficient in RHEL (versions 7, 8, 9) and RHEL Clustering (Pacemaker). Extensive experience in supporting SAP/SAPHANA on RHEL. Demonstrated ability in the installation, monitoring, troubleshooting, and patch management of operating systems. Experience in managing user and group accounts. Familiarity with monitoring solutions such as SCOM/App Dynamics and management tools like SCCMSpecial Generic Skills: Capability to work in a 24/7/365 shift environment. Excellent documentation skills, including design and operational documentation. Strong teamwork abilities for effective collaboration with application and database teams. Awareness of cybersecurity regulations (NCA, NIC) Decision Authority Matrix: Authorized to install, configure, patch, and maintain all RHEL systems and clusters. Responsible for daily operations, monitoring, and troubleshooting of the RHEL environment. Empowered to create and manage user/group accounts and their associated policies. Oversee the entire lifecycle of vendor support tickets for Red Hat<br><br>Preferred Qualifications:<br><br>Certifications such as Red Hat Certified System Administrator (RHCSA) or Linux Professional Institute Certification (LPIC) are a plus Experience with cloud services (AWS, Azure) for deploying and managing Linux applications Familiarity with configuration management tools (e.g., Ansible, Puppet) Ability to manage multiple priorities and projects in a fast-paced environment Strong communication skills to work effectively with remote teams<br><br>Benefits<br><br>Why Join Us:<br><br>Opportunity to work with a talented and passionate team.<br><br>Competitive salary and benefits package.<br><br>Exciting projects and innovative work environment.

This position functions around the clock, 24/7/365, to deliver extensive support for the enterprise RHEL server environment. The role involves the installation, configuration, management, operation, and maintenance of all RHEL server systems and RHEL Clusters (including Pacemaker). It is essential to ensure system stability through daily operations, patch management, monitoring, and troubleshooting, as well as providing support for SAP environments that operate on RHEL.<br><br>Key Responsibilities:<br><br>Install, configure, and manage Linux servers and applications to ensure optimal performance and high availability Monitor system performance, perform routine maintenance, and apply updates as needed Identify and resolve issues related to the operating system, hardware, and network configurations Implement and enforce security best practices within Linux environments, including firewalls, user permissions, and file integrity measures Assist in the deployment and management of applications hosted on Linux servers Document system configurations, procedures, and troubleshooting documentation for reference by the team Support backup and recovery processes to maintain data integrity and availability Collaborate with development teams to enhance deployment processes and ensure effective integration of Linux applications. Ensure that all RHEL systems are managed in accordance with vendor recommendations and security best practices, while also maintaining compliance with NCA, NIC, and SEC Cybersecurity regulations Contribute to the management of the operating system lifecycle, including planning for version upgrades and decommissioning Install, configure, manage, operate, and maintain RHEL server systems and clusters (e.g., RHEL 7, 8, 9). Provide daily operational support, including OS installation, monitoring, troubleshooting, virus protection, and resource management. Manage Red Hat HA Extension (PACEMAKER) clusters and support SAP, SAP HANA, and SAP S/4HANA environments on the RHEL platform. Regularly review system logs and OS behavior to proactively monitor and address potential issues Build strong relationships with the ERP, application, database, and web hosting teams for daily support, troubleshooting, and scheduled maintenance activities. Manage and maintain client agents for server monitoring (SCOM, App Dynamic) and server management (SCCM). Create and maintain technical and detailed design documentation, as well as technical operation documentation. Create, maintain, and delete user/group accounts and implement account policies. Raise and manage support tickets with Red Hat, including troubleshooting, log collection, and follow-up<br><br>Requirements<br><br>Requirements:<br><br>Degree: Bachelor's degree in Computer Science, Information Technology, or a related field Years of Experience: 3-5+ years of practical experience in Linux System Administration (RHEL/Cent OS) in an enterprise context Special Technical Skills: Proficient in RHEL (versions 7, 8, 9) and RHEL Clustering (Pacemaker). Extensive experience in supporting SAP/SAPHANA on RHEL. Demonstrated ability in the installation, monitoring, troubleshooting, and patch management of operating systems. Experience in managing user and group accounts. Familiarity with monitoring solutions such as SCOM/App Dynamics and management tools like SCCMSpecial Generic Skills: Capability to work in a 24/7/365 shift environment. Excellent documentation skills, including design and operational documentation. Strong teamwork abilities for effective collaboration with application and database teams. Awareness of cybersecurity regulations (NCA, NIC) Decision Authority Matrix: Authorized to install, configure, patch, and maintain all RHEL systems and clusters. Responsible for daily operations, monitoring, and troubleshooting of the RHEL environment. Empowered to create and manage user/group accounts and their associated policies. Oversee the entire lifecycle of vendor support tickets for Red Hat<br><br>Preferred Qualifications:<br><br>Certifications such as Red Hat Certified System Administrator (RHCSA) or Linux Professional Institute Certification (LPIC) are a plus Experience with cloud services (AWS, Azure) for deploying and managing Linux applications Familiarity with configuration management tools (e.g., Ansible, Puppet) Ability to manage multiple priorities and projects in a fast-paced environment Strong communication skills to work effectively with remote teams<br><br>Benefits<br><br>Why Join Us:<br><br>Opportunity to work with a talented and passionate team.<br><br>Competitive salary and benefits package.<br><br>Exciting projects and innovative work environment.

<h2 class="h5">Job description</h2> <div class="t-break" data-jb-field="description"> <p><b>Date Posted:</b></p><br><br>2026-07-31&amp;#xa;&amp;#xa;<p><b>Country:</b></p><br><br>United States of America&amp;#xa;&amp;#xa;<p><b>Location:</b></p><br><br>US-AL-HUNTSVILLE-1220-CUST ~ 1220 Redstone Gateway S ~ RESTONE (External Site)&amp;#xa;&amp;#xa;<p><b>Position Role Type:</b></p><br><br>Onsite&amp;#xa;&amp;#xa;<p><b><span>U.S. Citizen, U.S. Person, or Immigration Status Requirements:</span> </b></p><br><br>The ability to obtain and maintain a U.S. government issued security clearance is required.​ U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance&amp;#xa;&amp;#xa;<p><b>Security Clearance Type: </b></p><br><br>DoD Clearance: Secret&amp;#xa;&amp;#xa;<p><b>Security Clearance Status: </b></p><br><br>Active and existing security clearance required after day 1<br><br><p>At RTX, the world largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world.&nbsp;</p><br><br><br><p>Raytheon brings the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense.</p><br><br><br><p>At Raytheon, the foundation of everything we do is rooted in our values and a higher calling – to help our nation and allies defend freedoms and deter aggression. We bring the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. Our team solves tough, meaningful problems that create a safer, more secure world.</p><br><br><br><p>Raytheon Digital Technology OSCQ is seeking a <b>Systems Administrator – Operational Technology</b> to contribute as a key team member in a fast-paced, technology-driven factory environment, applying advanced troubleshooting skills to resolve technical issues of moderate to high complexity across hardware, operating systems, and integrated platforms.</p><br><br><br><p><b>This is an onsite position</b>.<br>&nbsp;</p><br><br><p><b>What You Will Do </b></p><br><br><ul><li>Support and configure Operational Technology (OT) environments, including industrial control systems, switches, networked automation devices, and secure connectivity solutions bridging OT and IT networks. Ensure all systems adhere to OT security standards while maintaining high reliability across factory production and manufacturing operations.</li><li>Perform IT systems administration within a heterogeneous Microsoft Windows and Linux environment, leveraging your knowledge of Windows Server internals or Linux fundamentals, including DNS, DHCP, Active Directory, and server replication technologies.</li><li>Configure, maintain, and troubleshoot network infrastructure components with a strong focus on optimizing performance, security, and connectivity. Experience with OT networks is highly valued.</li><li>Partner closely with Cybersecurity teams to uphold security requirements and safeguards across all systems and environments.</li><li>Support 24x7 operational systems, which may require occasional work outside standard hours.</li><li>Travel up to 10% annually to domestic U.S. locations based on business needs.</li></ul><br><p><b>Qualifications You Must Have </b>&nbsp;</p><br><br><ul><li>Typically requires a University degree or equivalent experience and a minimum of 5 years of prior relevant experience or an Advanced Degree in a related field and minimum 3 years’ experience.</li><li>The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.</li><li>Windows and/or Linux systems administration experience.</li><li>Must be able to obtain Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification) within 6 months of start date.&nbsp;</li></ul><br><p><b>Qualifications We Prefer</b></p><br><br><ul><li>Active Secret security clearance.</li><li>Experience with network switch configurations.</li><li>Network and infrastructure services such as domain controllers, global catalogs, DNS, and DHCP.</li><li>Infrastructure backup, restoration, disaster recovery and business continuity.</li><li>Experience with the following Microsoft technologies: MDT/WSUS/MECM; Windows desktops (Windows 10 &amp; 11).</li><li>CompTIA Security+ certification or other industry-recognized certifications relevant to a Windows System Administrator.</li><li>ITIL Foundations and/or ITIL Service Operations</li></ul><br><p><b>What We Offer</b></p><br><br><p>Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Safety, Trust, Respect, Accountability, Collaboration, and Innovation.</p><br><br><br><p><b>Learn More &amp; Apply Now!</b></p><br><br><p><u>Please consider the following role type definition as you apply for this role.</u></p><br><br><br><p><u>Onsite: </u>Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products.</p><br><br><br><p>Typically requires: A University Degree or equivalent experience and minimum 5 years prior relevant experience, or An Advanced Degree in a related field and minimum 3 years experience</p><br><br><p>Engineering/Other Technical Positions: Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 5 years of prior relevant experience unless prohibited by local laws/regulations.</p><br><br><br><br><p><i><b>As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend&nbsp;select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.</b></i></p><br><br><br>The salary range for this role is 86,800 USD - 165,200 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.<br><br><br>Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.<br><br>Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.<br><br>This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.<br><br>RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.<br><br><p><span><i>RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.</i> </span></p><br><br><br><br><p><b>Privacy Policy and Terms:</b></p><br><br><p><span>Click on this </span>link<span> to read the Policy and Terms</span></p><br><br><br> </div><h2 data-automation-id="subHeaderPreferredCandidate" class="h5"> Preferred candidate </h2> <div class="row is-m v-align-top t-small bg-mute"> <div class="col is-3 p5" data-automation-id="label_Years_of_experience"> <b>Years of experience</b> </div> <div class="col is-9 p5" data-automation-id="data_Years_of_experience"> No experience required </div> </div> <div class="row is-m v-align-top t-small "> <div class="col is-3 p5" data-automation-id="label_Degree"> <b>Degree</b> </div> <div class="col is-9 p5" data-automation-id="data_Degree"> Bachelor's degree / higher diploma </div> </div>