Job
- Level
- Senior
- Job Field
- IT, Network, System
- Employment Type
- Full Time
- Contract Type
- Permanent employment
- Location
- Berlin
- Working Model
- Hybrid, Onsite
Job Summary
In this role, you will design and optimize our IT infrastructure and network systems, administer virtualization and storage solutions, and create automation processes to enhance efficiency.
Job Technologies
Your role in the team
- Do you want to do more than just manage infrastructure – you want to shape it? You think in systems, work in a structured manner, and bring network expertise that makes a real difference? Then you are in the right place with us.
- 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 of diverse 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)
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Our expectations of you
Qualifications
- In-depth knowledge of Linux server administration (Debian, CentOS, etc.)
- Solid Windows Server knowledge (AD, DNS, DHCP, Group Policies)
- Independent, structured working style - 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, not just to handle them
- Microsoft 365, Entra ID / Azure AD
- Knowledge of Docker, Kubernetes, or container orchestration
- PKI / Certificate Management
- MDM/MAM solutions (Mac and Windows clients)
Experience
- Several years of experience as a System Engineer or Senior System Administrator
- Proven experience in network operations: firewalls, routing, switching, VPN gateways - you can read, debug, and logically structure a network
- Experience with Proxmox and/or VMware/ESXi as well as storage and backup systems
- Desirable but not mandatory: Cloud experience (AWS) and knowledge of IaC / Infrastructure as Code
- Security experience: hardening, MFA, role concepts, SOC integration
- Experience in a regulated environment (KRITIS, TKG, ISO 27001)
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What we offer
- Permanent employment contract with 30 days of vacation
- High-quality technical equipment
- Asset-building benefits, company pension scheme
- Work in a forward-looking industry
- Flat hierarchies, short communication channels, and a pleasant working environment
- Family-oriented and open environment with a casual culture of using 'you'
- An IT infrastructure in transition - you're involved when things are being rebuilt
- Senior engineers as sparring partners, not working alone
- Hybrid work with reasonable regulations
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Benefits
Work-Life-Integration
Topics You Will Work On
Job Locations
About Your Employer
DNS:NET Internet Service GmbH
Bereits im Jahr 1998 wurde das Telekommunikationsunternehmen DNS:NET in Berlin / Brandenburg gegründet, um den Infrastrukturausbau weißer Flecken - das sind Gebiete ohne schnelles Internet - in Städten und Gemeinden voranzutreiben. Mit der eigenen Netzinfrastruktur versorgen wir, die Unternehmen der DNS:NET Gruppe, heute sowohl eigene Endkunden als auch andere Netzbetreiber mit Vorleistungsprodukten.
Description
- Founding Year
- 1998
- Company Type
- Established Company
- Working Model
- Hybrid, Onsite
- Industry
- Internet, IT, Telecommunication
Senior System Engineer
- Location
- Berlin
- Working Model
- Hybrid, Onsite
- Diversity
- Open for all genders
