{"id":2252484,"url":"https://alion.io/job/qnr-network-administrator","title":"Network Administrator","company":{"id":831232,"name":"QNR","domain":"qnr.com.gr","url":"https://alion.io/company/qnr","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":null},"role":"Networking","role_family":"Networking","seniority":null,"employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Brussels, Belgium","Luxembourg City, Luxembourg"],"countries":["BE","LU"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"ServiceNow","optional":false},{"name":"VLAN","optional":false},{"name":"VPN","optional":false}],"status":"live","first_seen_at":"2026-09-29T00:00:00Z","employer_posted_date":"2026-09-29","last_verified_at":"2026-10-11T23:25:15Z","board_verified":true,"closed_at":null,"days_open":12,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":12},"description":"Are you a Network Administrator? Think bigger about your next move!\nBuild your future with QnR Group.\nJOIN THE NEXT EUROPEAN TECHNOLOGY POWERHOUSE\nNetwork Administrator | Quality & Reliability (QnR), the parent company of QnR Group\nRole overview\nWe are looking for a Network Administrator to join one of our EU public sector clients based in Brussels. You'll ensure operations of the network, including telecommunication and/or computer infrastructure to meet the organisation’s communication needs.\nAbout QnR Group\nQnR Group is a technology group with 35 years of experience, 8 companies, 4 delivery centers and 210+ professionals across Greece, Belgium, Cyprus and Poland. Listed on the Athens Stock Exchange since 2000, we deliver mission-critical digital transformation projects for the public and private sector. The Group’s capabilities covers software engineering, enterprise and generative AI, cybersecurity, cloud infrastructure, SAP and ServiceNow solutions, core banking and maritime intelligence.\nRequirements\nWhat you'll work on:\nOperate, maintain and support enterprise network infrastructure components\nInvestigate, diagnose, and resolve network incidents and performance issues to ensure service continuity\nEnsure communication performance, resilience, and security requirements are aligned with agreed service level standards\nUtilize network management and monitoring tools to analyze network load and evaluate performance metrics\nProactively monitor network traffic to identify and mitigate bottlenecks and optimize overall performance\nInstall, configure, and upgrade network components and network monitoring solutions\nPerform testing and validation activities following infrastructure upgrades and changes\nContribute to the continuous improvement of network availability, reliability, and security\nWhat you bring:\nBachelor's degree in Computer Science, Engineering or a related technical field\nAt least 7 years of experience\nStrong hands-on expertise with Palo Alto and F5 technologies\nSolid experience with Cisco networking solutions\nGood understanding of networking concepts and communication protocols, including WAN, LAN/WLAN and VLAN\nKnowledge of network security principles, VPN technologies, and cryptographic communication techniques\nExperience operating and managing network devices and services, including routers, switches, load balancers, accelerators, firewalls and cryptographic communication devices\nFamiliarity with network monitoring and performance management tools\nStrong troubleshooting and analytical skills, with the ability to identify and resolve complex network issues\nCertifications required:\nAt least 1 certification from the following:\nCCDP/CCNP, CCNA, CCDE/CCIE, CCAr or relevant certifications of F5, Juniper, Palo Alto\nBIG-IP certified administrator \nBIG-IP LTM Specialist: Maintain and Troubleshoot \nBIG-IP LTM Specialist: Architect, Set up, Deploy \nSANS certification related to Network Security","description_format":"text","description_chars":2948,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Consulting & Digital Transformation","Systems Integrators","Custom Software Development"],"lifecycle":[{"event":"open","at":"2026-10-11T02:48:00Z"}],"visa":[],"liveness":{"score":72,"band":"hot","label":"Hiring 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