Network Engineer

About the role Help build the networks connecting SkyNRG’s offices and future production sites! As we scale Sustainable Aviation Fuel production, secure and reliable connectivity between our IT and operational environments becomes increasingly critical. We are looking for a Network Engineer (IT/OT) to design, build, and operate the network architecture supporting our Amsterdam headquarters, first production facility, and future sites. This is a hands-on role with real influence over how our network landscape develops, from routing, switching and Wi-Fi to firewalls, IT/OT segmentation, and secure remote access. Reporting to the IT Operations & Infrastructure Manager, the role works closely with IT, security, plant engineering, and automation partners. Your Responsibilities: Design, build, and operate IT and OT network infrastructure at headquarters and production sites, from Purdue Level 3 upward and at the boundary with plant control systems Manage and optimize our Fortinet (IT) and Palo Alto (OT) firewall environments, including rule sets, segmentation, and the industrial DMZ Operate Cisco Catalyst switching and Meraki wireless at our production sites, alongside the office network at headquarters Implement and maintain secure remote access for employees and vendors, including zero trust access Deploy and operate Nozomi Networks for OT asset visibility and threat detection, and integrate network and OT logs into our SIEM (Microsoft Sentinel) Support incident response together with our security team and managed SOC provider, and contribute to NIS2 compliance activities This is an opportunity to build an IT/OT network from the ground up rather than maintain a legacy landscape. You will work with a modern technology stack, have real influence over architecture decisions, and see the direct impact of your work on our operational reliability and cybersecurity maturity. The position is based at our headquarters in Amsterdam. Expect regular travel to the production site during construction and commissioning, becoming occasional once the site is in operation. Your profile As a growing company in a rapidly evolving industry, we are looking for people who embrace change and are motivated to actively contribute to building and scaling our business. You are someone who feels comfortable in an entrepreneurial environment, takes ownership, and thrives when things are still developing. You recognize yourself in the following: 5+ years of experience as a Network Engineer, including hands-on responsibility for enterprise firewall environments Strong experience with Fortinet FortiGate or Palo Alto Networks firewalls, and the willingness to master the other Solid knowledge of routing, switching (preferably Cisco Catalyst), wireless, VPN technologies, and network security best practices Experience with, or strong knowledge of, OT and industrial network environments, including ICS and SCADA systems Understanding of IT/OT segmentation principles and frameworks such as IEC 62443 and the Purdue Model, including industrial DMZ design Experience with OT monitoring solutions, preferably Nozomi Networks or comparable platforms such as Claroty or Dragos Comfortable working in both office and plant environments, including regular travel to production sites Professional proficiency in English Nice-to-haves: Certifications such as Fortinet FCP (NSE 4+), Palo Alto Networks PCNSE, Cisco CCNP, Nozomi Networks, IEC 62443, or GICSP Experience within the process industry, energy, chemicals, manufacturing, or another industrial environment Familiarity with NIS2 and experience translating regulatory requirements into practical technical controls Experience with zero trust network access (such as Zscaler) and Microsoft Azure networking Experience integrating network and OT logs into a SIEM, preferably Microsoft Sentinel Automation or scripting experience with Python or Ansible, and Git-based workflows E