NFI is looking for a hands-on Product System Administrator to support and improve the operation technology (OT) inside our product. This role is about the product control environment only and does not cover general corporate IT or site infrastructure. You will help keep product systems stable, secure, and easy to support across their full lifecycle.

About the Company

NFI is dedicated to enhancing operational technology within its products, focusing on stability and security.

The Role

As a Product System Administrator, you will operate and improve product control systems and infrastructure, emphasizing uptime, security, recovery, and supportability. You will troubleshoot complex connectivity and performance issues, support product issues by identifying their causes, and manage core networking components.

Responsibilities

• Operate and enhance product control systems/infrastructure with a focus on uptime, security, recovery, and supportability.
• Troubleshoot complex connectivity and performance issues across network and host layers.
• Support product issues by identifying causes, separating environment and software problems, and escalating with clear evidence.
• Manage core networking aspects such as subnets, routing, DNS, gateways, NAT, and firewall rules.
• Build and maintain site-to-site VPNs and remote access, debugging using logs and packet inspection tools.
• Administer Windows Server and Ubuntu/Linux systems used in the product environment.
• Strengthen security through hardening, patching, access control, least privilege, secure baselines, vulnerability remediation, and structured change management.
• Keep documentation, monitoring, backup, and recovery processes current.
• Collaborate closely with the IT and Production teams when product issues, deployments, or support activities require cross-team coordination.
• Participate in incident response and on-call support as needed.

Requirements

Must-have

• Approximately 5 years of hands-on system administration experience in product, OT, or industrial environments.
• Strong networking skills, including routing, subnets, gateways, DNS, and firewalls.
• Experience with VPNs and packet-level troubleshooting tools such as Wireshark or tcpdump.
• Hands-on experience with Windows Server, including Active Directory, Group Policy, patching, and permissions.
• Hands-on experience with Ubuntu/Linux administration, including services, updates, permissions, and logs.
• Hands-on experience with RAID configuration and storage management in server or product environments.
• Security-oriented mindset with a strong focus on hardening, least privilege, and incident handling.
• Preferably located in the Netherlands.

Nice-to-have

• Familiarity with OT or industrial environments and their availability and change-control needs.
• Experience with monitoring, logging, and incident or problem management.
• Automation skills in PowerShell, Bash, or Python; Ansible is a plus.
• Experience with virtualization (Hyper-V/QEMU) and backup or disaster recovery practices.

What Success Looks Like

• Faster and clearer troubleshooting of product issues.
• Improved visibility (monitoring/logging) and fewer repeat incidents through stronger monitoring and root-cause follow-up.
• Enhanced security through timely patching, stronger access control, and cleaner system baselines.
• Clear documentation and repeatable support processes.