System Engineer
- Catégorie: IT
- Type de contrat: Permanent
- Localisation: Düsseldorf, Germany
- Niveau de formation: Bachelor/Licence pro
- Expérience/Années: > 3 years
Mission
Network Infrastructure Management:
- Design, configure, and maintain routers, switches, firewalls, VPNs, and wireless networks.
- Monitor network performance, troubleshoot latency, packet loss, and connectivity issues.
- Implement and manage VLANs, routing protocols (BGP, OSPF, EIGRP), and QoS policies.
- Ensure network security by configuring firewalls (Cisco ASA, Sophos, Fortinet), IDS/IPS, and NAC solutions.
- Perform network capacity planning and scalability assessments.
Server & Systems Administration:
- Deploy, manage, and maintain Windows Server (2016/2019/2022) and Terminal server environments.
- Administer Active Directory, O365, DNS, DHCP, Group Policy, and Azure AD.
- Manage virtualization platforms (VMware vSphere, Hyper-V, Nutanix).
- Implement backup, disaster recovery (DR), and high-availability (HA) solutions.
Service Desk Leadership
- Resolve Tier 2/3 escalations for complex O365/network/server issues
- Mentor junior staff on root cause analysis methodologies
- Maintain knowledge base with advanced troubleshooting guides
Security & Compliance:
- Apply security patches, firmware updates, and vulnerability remediations.
- Enforce Zero Trust, least privilege access, and network segmentation.
Automation & Optimization:
- Automate repetitive tasks using PowerShell, Bash, Python, or Ansible.
- Optimize server and network performance through load balancing, caching, and traffic shaping.
- Document network diagrams, configurations, and operational procedures
Collaboration & Support:
- Work with IT teams to resolve escalated Tier 3 infrastructure issues.
- Assist in data center migrations, cloud transitions, and network upgrades.
- Provide guidance to junior engineers and service desk team
PROFIL
BSc/BA in IT, Computer Science or relevant field
3-5 years total experience in combined systems/network administration
2+ years specifically managing O365 environments (SharePoint/Teams)
3+ years Windows Server administration in production environments
Network troubleshooting experience with Wireshark/ping/traceroute
PowerShell scripting proficiency for automation tasks
Fluent German & English