Sr. Network IT Engineer

FORTNA partners with the world’s leading brands to transform omnichannel and parcel distribution operations. Known world-wide for enabling companies to keep pace with digital disruption and growth objectives, we design and deliver solutions, powered by intelligent software, to optimize fast, accurate and cost-effective order fulfillment and last mile delivery. Our people, innovative approach and proprietary algorithms and tools ensure optimal operations design and material and information flow. We deliver exceptional value every day to our customers with comprehensive services and products including network strategy, distribution center operational design and implementation, material handling automated equipment, robotics and a comprehensive suite of lifecycle services.At FORTNA, we believe in fostering a workplace that isn't just a job but a movement – a collective effort to redefine success and transform challenges into opportunities. "Join the Movement" encapsulates our commitment to a workplace culture that thrives on collaboration, celebrates diversity, and empowers every individual to contribute to something greater than themselves. Our Team. Our Passion. Our Approach. READY TO DESIGN AND SECURE THE NETWORKS THAT POWER GLOBAL SUPPLY CHAINS?Join the team as a Senior Network Engineer and take ownership of designing, deploying, and maintaining high-performance network infrastructure across multiple enterprise sites. This role offers the opportunity to work hands-on with industry-leading Fortinet and Cisco technologies while shaping the security and scalability of business-critical systems.You will collaborate with cross-functional IT teams to support and optimise global voice, cloud, and data centre initiatives. Your aim will be to ensure the availability, resilience, and performance of network operations while proactively identifying improvements in security and efficiency. Expect to lead architectural upgrades, contribute to strategic planning, and serve as a technical authority for complex network issues.In this role, your expertise will directly impact operational success, enabling fast and secure communications that support advanced automation, robotics, and digital logistics platforms.Job Responsibilities:Design, implement, and maintain LAN, WAN, and security infrastructure across enterprise environmentsConfigure and optimise Fortinet technologies, including FortiGate, FortiManager, FortiAnalyzer, and VPN solutionsAdminister and troubleshoot Cisco switching platforms (Catalyst/Nexus), ensuring high performance and availabilityLead network upgrades, migrations, and architecture enhancementsEnforce network security standards, policies, and best practicesProvide Level 3 support and resolve escalated network incidentsConduct capacity planning, risk assessments, and performance monitoringCollaborate with IT teams on cloud, voice, and data centre projectsMaintain technical documentation for compliance and operational useEvaluate and recommend emerging network technologiesQualifications Needed:5–10 years of experience in enterprise network engineering, with at least 2–3 years in a senior-level roleProven experience working in end-user environments.Technical expertise in:Fortinet stack: FortiGate, FortiManager, FortiAnalyzer, FortiAuthenticatorCisco switching platforms: Catalyst, Nexus (VLANs, STP, QoS, EtherChannel)Network routing protocols: OSPF, BGP, EIGRPVPN configurations: IPSec, SSL VPN, site-to-site, remote accessNetwork segmentation, firewall policies, HA setups, and troubleshooting security eventsInfrastructure and system administration practicesFamiliarity with monitoring tools (SolarWinds, PRTG, syslog, SNMP)Scripting/automation knowledge (Python, Ansible) is a plusStrong documentation and communication skillsFluent in English. Dutch language skills are a plus.Certifications preferred: Fortinet NSE4/NSE5, Cisco CCNP/CCIE, ITIL FoundationAdditional Details:Location: Houten, NetherlandsHybrid role: 3 days/week in the officeSome travel requiredNo on-call duty, but will follow FORTNA’s shift schedule.How to Apply:Click the 'Apply' button or connect directly with Florencia Senia at florenciasenia@fortna.com.