Germany
ALTEN
DNS:NET Internet Service GmbH
Senior System Engineer (m/f/d)
Germany
Berlin, Germany
PythonAWSDockerKubernetes
Automatic translation. Check the original.
Your Future Job
You want to do more than just manage infrastructure – you want to shape it? You think in systems, work in a structured way, and bring network know-how that makes a real difference? Then you're in the right place with us.
What We Need You For
- Operation, further development, and modernization of our IT infrastructure (Linux & Windows)
- Administration and further development of our network infrastructure (firewalls, routing, switching, VPN)
- Administration of virtualization and storage systems (Proxmox, VMware/ESXi, Huawei/HPE, etc.)
- Support for various departmental applications and specialized solutions
- Planning and execution of maintenance work, patch management, and monitoring
- Analysis, automation, and documentation of processes and IT services
- Collaboration with other IT teams (DevOps, Helpdesk, Network) – including occasional support for escalated support requests
- Participation in IT projects (e.g., VM modernization, PKI, KRITIS compliance)
What You Bring
- Several years of experience as a System Engineer or Senior System Administrator
- In-depth knowledge of Linux server administration (Debian, CentOS, etc.)
- Solid Windows server knowledge (AD, DNS, DHCP, Group Policies)
- Demonstrable experience in network operations: firewalls, routing, switching, VPN gateways – you can read, debug, and structure a network effectively
- Experience with Proxmox and/or VMware/ESXi, as well as storage and backup systems
- Independent, structured way of working – even without complete documentation
- Enjoyment of automation (Ansible, Shell/Python, or similar) and knowledge transfer within the team
- Willingness to take responsibility and drive topics forward, not just process them
Desirable, but not essential
- Cloud experience (AWS) and knowledge of IaC / Infrastructure as Code
- Microsoft 365, Entra ID / Azure AD
- Security experience: hardening, MFA, role concepts, SOC integration
- Knowledge of Docker, Kubernetes, or container orchestration
- PKI / Certificate Management
- MDM/MAM solutions (Mac and Windows clients)
- Experience in regulated environments (KRITIS, TKG, ISO 27001)
Your Benefits With Us
- Permanent employment contract with 30 days of vacation
- High-quality technical equipment
- Capital-forming benefits, company pension plan
- Work in a future-oriented industry
- Flat hierarchies, short communication channels, and a pleasant working atmosphere
- Familiar and open interaction in a "you" culture
- An IT infrastructure in transition – be part of it when things are rebuilt
- Senior Engineers as sparring partners, no going it alone
- Hybrid work with reasonable arrangements
...
Apply now and help us shape the digital future at the speed of light!
Would you like to become part of our successful team and grow with us?
Then we look forward to getting to know you personally. Please send us your complete application documents, stating your salary expectations and earliest possible start date.
Contact Person: Wolf Bußmeier
About us
Inspiring people at the speed of light – that's the vision that drives the approximately 200 employees of the DNS:NET family. Because we stand for the "connection to the future" and have made it our mission to enforce the fundamental right to internet access in underserved regions.
As a medium-sized telecommunications company, we have been a fixture in the IT industry since 1998. Our service portfolio reflects the entire spectrum of the value chain: From the construction to the operation of our own network infrastructure, the DNS:NET group of companies offers diverse areas of application for specialists, generalists, career changers, and trainees.
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