System Engineer

System Engineer – Industrial Patch Management & OT Infrastructure Location: Khobar, Saudi Arabia Employment Type: Full-Time | On-Site Experience: 3+ Years About REPLIL REPLIL develops cybersecurity and infrastructure management solutions designed specifically for industrial and operational technology (OT) environments. Our flagship platform, REPLIL Industrial Patch Manager (IPM), provides centralized patch and vulnerability management across heterogeneous industrial environments. The platform helps organizations identify, assess, approve, deploy, and monitor operating system, software, firmware, and vendor-approved updates across IT and OT infrastructure. REPLIL IPM supports environments incorporating technologies from vendors such as Microsoft, Cisco, Palo Alto Networks, Honeywell, Yokogawa, Schneider Electric, Emerson, Rockwell Automation, and others, while correlating vulnerability and security information from sources such as the NIST National Vulnerability Database (NVD). We are looking for a hands-on System Engineer who understands infrastructure, networking, troubleshooting, and—most importantly—the fundamentals of patch management. The Role The System Engineer will be responsible for deploying, configuring, supporting, and troubleshooting REPLIL Industrial Patch Manager and its supporting infrastructure at customer environments in Saudi Arabia. This is a hands-on technical role suited to an engineer who is comfortable working with Windows Server, patch management technologies, networking, firewalls, remote management protocols, and enterprise infrastructure. Experience in OT or industrial environments is an advantage, but candidates with a strong IT infrastructure and patch-management background who are interested in developing OT expertise are encouraged to apply. Key Responsibilities • Deploy, configure, administer, and troubleshoot REPLIL Industrial Patch Manager (IPM) and related components. • Manage and troubleshoot Windows Server environments. • Configure and support Microsoft patch-management technologies, including WSUS, Microsoft Configuration Manager (SCCM/MECM), and Windows Update. • Understand the complete patch-management lifecycle, including: • Patch discovery and synchronization • Patch applicability and identification • Testing and validation • Approval workflows • Patch deployment and scheduling • Reboot management • Installation verification • Failure analysis and remediation • Compliance and reporting • Troubleshoot failed patch installations using Windows and application logs. • Configure and troubleshoot network connectivity between distributed systems. • Work with firewalls, switches, routers, VLANs, ports, routing, DNS, certificates, and network security policies. • Troubleshoot remote-management technologies and protocols such as WinRM/PowerShell Remoting, WMI, SSH, SNMP, HTTPS/TLS, and RDP. • Monitor system availability, performance, services, logs, and infrastructure health. • Support patching and management of Windows, Linux, applications, and network infrastructure. • Assist customers and internal teams with technical troubleshooting and root-cause analysis. • Prepare technical documentation, deployment procedures, troubleshooting guides, and customer reports. • Participate in system design reviews, testing, SAT activities, implementation, and customer handover. • Work closely with REPLIL product, engineering, cybersecurity, and R&D teams. Required Qualifications Candidates should have: • 3+ years of hands-on experience in System Engineering, System Administration, Infrastructure Support, or a similar role. • Good practical understanding of enterprise patch management. • Strong hands-on experience with Windows Server administration. • Experience with WSUS, SCCM/MECM, Windows Update, or comparable enterprise patch-management platforms. • Good understanding of Windows patching, servicing, cumulative updates, security updates, prerequisites, reboot requirements, and patch failure troubleshooting. • Working knowledge of Active Directory, Group Policy, DNS, certificates, services, Task Scheduler, and PowerShell. • Good understanding of TCP/IP networking, ports, routing, VLANs, DNS, and firewall rules. • Hands-on experience troubleshooting firewalls and network equipment. • Strong troubleshooting skills and the ability to systematically diagnose infrastructure, operating system, application, and network issues. • Ability to communicate technical issues clearly with customers and internal engineering teams. • Bachelor’s degree in Computer Engineering, Electrical Engineering, Information Technology, Computer Science, or a related discipline, or equivalent practical experience. • Preferred / Advantageous Experience Experience in any of the following will be considered an advantage: • OT / ICS / Industrial Control Systems • IT/OT network architecture and segmentation • Industrial cybersecurity • Linux administration and patching • Cisco, Juniper, Palo Alto Networks, Fortinet, or similar technologies • VMware / virtualization technologies • SNMP and network-device management • Firmware management and network-device upgrades • Vulnerability management and CVE/CVSS concepts • NIST NVD or other vulnerability intelligence sources • PowerShell scripting and automation • SQL/PostgreSQL • IIS and .NET application hosting • Air-gapped or restricted industrial networks • Working with industrial vendors such as Honeywell, Siemens, Schneider Electric, Emerson, Rockwell Automation, Yokogawa, or similar platforms Previous OT experience is preferred but not mandatory. Strong system engineers with solid patch-management, Microsoft infrastructure, and networking knowledge will be provided opportunities to develop their industrial/OT expertise. What We Are Looking For We are particularly interested in engineers who can answer practical questions such as: • Why did a Windows patch fail, and which logs should be checked? • How do WSUS and Windows Update determine which patches are applicable? • How would you troubleshoot a machine that cannot communicate over WinRM? • What firewall ports and protocols are required between different infrastructure components? • How would you safely deploy patches across production systems? • How do you distinguish a network, authentication, operating-system, application, or patch-related problem? • How would you troubleshoot patching in an isolated or restricted network? We value hands-on troubleshooting ability and willingness to learn more than theoretical knowledge alone. Career Growth & Hands-On Exposure This role provides a unique

3+ years of hands-on experience in System Engineering, System Administration, Infrastructure Support, or a similar role. Good practical understanding of enterprise patch management. Strong hands-on experience with Windows Server administration. Experience with WSUS, SCCM/MECM, Windows Update, or comparable enterprise patch-management platforms. Good understanding of Windows patching, servicing, cumulative updates, security updates, prerequisites, reboot requirements, and patch failure troubleshooting. Working knowledge of Active Directory, Group Policy, DNS, certificates, services, Task Scheduler, and PowerShell. Good understanding of TCP/IP networking, ports, routing, VLANs, DNS, and firewall rules. Hands-on experience troubleshooting firewalls and network equipment. Strong troubleshooting skills and the ability to systematically diagnose infrastructure, operating system, application, and network issues.

Deploy, configure, administer, and troubleshoot REPLIL Industrial Patch Manager (IPM) and related components. Manage and troubleshoot Windows Server environments. Configure and support Microsoft patch-management technologies, including WSUS, Microsoft Configuration Manager (SCCM/MECM), and Windows Update. Understand the complete patch-management lifecycle, including: Patch discovery and synchronization; Patch applicability and identification; Testing and validation; Approval workflows; Patch deployment and scheduling; Reboot management; Installation verification; Failure analysis and remediation; Compliance and reporting. Troubleshoot failed patch installations using Windows and application logs. Configure and troubleshoot network connectivity between distributed systems. Work with firewalls, switches, routers, VLANs, ports, routing, DNS, certificates, and network security policies. Troubleshoot remote-management technologies and protocols such as WinRM/PowerShell Remoting, WMI, SSH, SNMP, HTTPS/TLS, and RDP. Monitor system availability, performance, services, logs, and infrastructure health. Support patching and management of Windows, Linux, applications, and network infrastructure. Assist customers and internal teams with technical troubleshooting and root-cause analysis. Prepare technical documentation, deployment procedures, troubleshooting guides, and customer reports. Participate in system design reviews, testing, SAT activities, implementation, and customer handover. Work closely with REPLIL product, engineering, cybersecurity, and R&D teams.