Network Engineer

About Rotarex Since 1922, Rotarex has been the world leader in cylinder valves, regulators, and equipment for all gas applications. With nearly 1,800 employees worldwide, we support industries such as semiconductor, medical, automotive, food & beverage, and fire protection. Innovation, quality, and customer service are at the heart of everything we do, and our IT infrastructure plays a critical role in enabling this success. Your Mission : Make an Impact As a Network Engineer, you'll play a key role in ensuring the stability, security, and performance of our global IT infrastructure. You'll be responsible for delivering IT infrastructure projects, maintaining critical LAN / WAN networks, securing more than 350 servers across multiple countries, and supporting both our corporate and industrial environments In this role, you will : Maintain and optimize our global network infrastructure (LAN, WAN, Wi-Fi, VPN, NAC, Firewalls) Ensure robust security across network, server, and application layers Provide level 2 and level 3 support and manage escalated infrastructure issues Advise on new technologies and submit change requests to continuously improve our systems Implement and collaborate on cross-departmental IT projects with Development and ERP teams Carry out preventive maintenance operations and support server lifecycles Document infrastructure and procedures to ensure reliability and knowledge sharing What You Bring Computer degree or equivalent professional experience Proven expertise in networking technologies and solutions (LAN, WAN, Wi-Fi, NAC, Firewalls) Solid experience in security management (backups, firewalls, auditing systems) Strong knowledge of Microsoft systems : Azure, Active Directory, Entra ID, Defender, Sentinel, InTune... Experience in industrial network environments (Industry 4.0, IoT) is a plus Familiarity with ISO 9001; knowledge of NIS 2 is an advantage Fluent in French and English Flexible regarding working hours (maintenance outside business hours) and willing to participate in on-call duty rotations A balance between autonomy and teamwork, with a customer-oriented mindset and ability to collaborate with international teams What Makes This Role Exciting This is not just a network administration role - it's a chance to work on global-scale infrastructure projects with cutting-edge technologies. You'll secure and maintain a hybrid environment that supports both corporate IT and industrial IoT / Industry 4.0 networks. With over 350 servers worldwide, every day brings new technical challenges, opportunities to innovate, and the ability to directly shape the resilience and security of Rotarex's digital backbone. Why Join Us Joining Rotarex as a Network Engineer means stepping into a strategic IT position with international impact. You'll collaborate with skilled experts across the world, work on diverse projects from cloud security to industrial connectivity, and grow your expertise in both Microsoft and networking ecosystems. This role is ideal if you want to combine hands-on technical depth with the opportunity to advise, improve, and innovate on a global IT landscape. Location Position based in Lintgen, Luxembourg - with a move planned for late 2025 / beginning of 2026 to our brand-new Industry 4.0 site in Bissen, designed to maximize both team comfort and industrial performance. What you will find at Rotarex By joining Rotarex, you will benefit from :

• A key position at the heart of our digital transformation
• The opportunity to join our brand-new Industry 4.0 site in Bissen by the beginning of 2026
• The growth and stability of a worldwide industrial group with a family culture
• An environment where innovation and technical expertise drive strategy
• Training and career development opportunities
• Flexible working hours for a strong work-life balance
• An advantageous collective labor agreement (extra leave, bonuses, medical hours, etc)
• A social fund supporting important life events (marriage, birth, retirement...)
• Easy access : 5 minutes from train station + free parking
• Additional perks : Sympass discounts, preferential mobile plan, partner banks, and attractive health coverage
• Company events that foster team spirit (Family Day, Christmas party, team buildings, sports sponsorships, etc) Important : Only applications sub...

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