Summary
✨ AI‑Generated
Take ownership of the infrastructure behind complex industrial control environments. You will operate and improve Windows and Linux servers, virtual machines, storage, networking, firewalls, sensors, and machine communication systems, troubleshooting issues across multiple technical layers to keep product environments stable and secure.
Highlights
Hands-on senior infrastructure role focused on operational technology, with broad exposure to servers, virtualization, storage, networking, security, and industrial communication systems.
Description
NFI is looking for a hands-on Senior Systems Administrator & Infrastructure Engineer to support and improve the Operational Technology (OT) environment inside our products.
This role focuses exclusively on the product control environment and does not cover corporate IT or site infrastructure.You will help keep product systems stable, secure, and supportable throughout their lifecycle.
The product control architecture includes Windows and Linux servers, virtual machines, data storage, control boxes, industrial switches, firewalls, sensors, and machine communication networks.
These components run product software, connect subsystems, protect network boundaries, and store operational and diagnostic data.We are looking for someone who understands how these components work together and can troubleshoot issues across software, operating systems, networking, virtualization, storage and machine communication layers.What you will doOperate and improve product control systems and infrastructure with a strong focus on uptime, security, recovery, and supportabilityTroubleshoot complex connectivity, communication, and performance issues across network, operating system, virtualization and storage layersDiagnose and resolve communication issues between servers, control boxes, sensors, machine controllers, and product subsystemsAnalyze network traffic and communication protocols using tools such as Wireshark, tcpdump and packet capturesSupport product issues by identifying root causes, separating infrastructure and software problems, and escalating with clear evidenceManage networking components including subnets, routing, VLANs, DNS, gateways, NAT, VPNs, managed switches and firewall rulesBuild and maintain site-to-site VPNs and remote access solutionsAdminister Windows Server and Ubuntu/Linux systems used within the product environmentConfigure, maintain, and troubleshoot virtualization platforms such as Hyper-V, QEMU, VMware, or equivalent technologiesConfigure and troubleshoot RAID arrays, storage controllers, backup solutions, disaster recovery processes, and data recovery activitiesImplement and maintain Role-Based Access Control (RBAC), Active Directory permissions, service accounts, and least-privilege access modelsStrengthen security through hardening, patching, access control, secure baselines, vulnerability remediation and structured change managementPerform vulnerability assessments, security remediation, malware validation, antivirus validation and security compliance checksKeep documentation, monitoring, backup, and recovery processes up to dateWork closely with Software, Production, Service, and IT teams when product issues require cross-functional troubleshootingParticipate in incident response and on-call support when needed
