Salary
≈ $46k – $104k per year (Estimated)
Location
In office (Duisburg)
Seniority
Middle · 3+ years exp
Confirmed on the employer's own hiring board on Nov 2, 2026. First seen by Alion on Aug 18, 2025. ArcelorMittal scores A on the Alion truth index.
Overview
Company
Impact
Profile match
ArcelorMittal is a multinational steel and mining company formed in 2006 through the merger of Arcelor and Mittal Steel, producing flat and long steel products for the automotive, construction, household appliance and packaging industries. It operates steelmaking and iron ore mining sites in Europe, the Americas, India and Africa, including large plants in Poland, Brazil, Spain, France and Belgium, and is listed in Amsterdam, Paris, Luxembourg, Madrid and New York. The company is headquartered in Luxembourg City, Luxembourg.
Backed by Clean Energy Ventures, ZCG
Main tasks
The IT Infrastructure Expert will be in charge of:
- Maintaining and supporting Client & Server environments
- Supporting End users and technical teams in incident analysis and resolution
- Maintaining the Network based on Cisco & Siemens devices
- Maintaining Security devices based on Fortinet
- Analysing and resolving of virtual and physical network related incidents
- Providing support and guidance for OT teams in network management
- Supporting the hardening of IT and OT devices by enforcing policies and monitoring access to them.
- Participating in planning and execution of IT-related projects
- Providing a 24/7 support (on call duty)
Specific Knowledge
- 3+ years experience in IT-Infrastructure
- Ability to work in Industrial Environment
- Strong knowledge in client and server OS (Windows necessary, Linux is an advantage)
- Good knowledge in O365 challenge (Skype/Teams especially) and cloud proxy technology
- Strong knowledge in Network technology: LAN/Routing on Cisco (certification is an advantage) and optionally Siemens network devices
- Good knowledge in WLAN technology: Cisco Wireless Controller
- Basic knowledge about Firewall/IPS management (Cisco and Fortigate)
- Basic knowledge on Routing protocols: static, OSPF and WAN routing
- Basic knowledge of F5 products especially the F5 Big IP APM
- Basic knowledge of Cloud Design and Architecture (Azure, AWS, OCI,..)
- Knowledge on optical fiber connection analysis and splicing is an advantage.
- Knowledge on Alcatel Lucent telephone systems and FTA infrastructure is an advantage.
- Effective communication skill with non-IT users
Languages:
- German (mother tongue),
- Fluent English is required
- Any other language will be considered as a plus.
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