Job
- Level
- Senior
- Location
- Ditzingen
- Working Model
- Onsite
- Job Field
- IT, System
- Employment Type
- Full Time
- Contract Type
- Permanent employment
Job Summary
In this role, you operate and enhance our network and system infrastructure, manage a customer platform on Linux, and implement IT security measures, while independently shaping our data center architecture.
Job Technologies
Your role in the team
- You operate and develop our internal network and system infrastructure further - Windows clients, servers, security, backup, both physical and virtualized.
- You manage our customer platform on the Linux / Proxmox / JBoss WildFly / PostgreSQL stack - reliably, securely, and efficiently.
- You plan and oversee the development of our data center architecture - with a clear Open-Source-First philosophy and without external cloud dependency.
- You design and implement IT security measures: network segmentation, firewalls, system hardening, vulnerability analysis.
- You recognize when something can be improved – and you make a suggestion. Then you implement it. Short paths, real impact.
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Our expectations of you
Education
- Completed IT apprenticeship or degree, at least 5 years of practical experience in system administration.
Qualifications
- Excellent knowledge of Windows environments, solid understanding of Linux server environments.
- Proficient in routing, switching, firewalls, and network monitoring.
- Strong security awareness - you think in attack vectors, not just checklists.
- Open-source affinity: You understand why having control over the stack is better than convenience on third-party servers.
- You work independently and in a structured manner – and you know when to solve a problem on your own and when it is more efficient to ask the team. Both are explicitly encouraged here.
- If you do not yet cover all points, it is important to us that you are willing to build the knowledge.
- Fluent in spoken and written German.
Experience
- Proxmox experience is a real plus.
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What we offer
- You decide what our infrastructure looks like. No architecture committee, no corporate standard that ties your hands.
- We don't buy what's trendy right now. We invest in what lasts. Open Source, well thought out, sustainable.
- You are the sole admin, but you work with developers who respect the infrastructure, and leadership that understands and strongly supports technical decisions.
- We operate with scheduled maintenance windows and clear substitution policies for your vacation.
- Small units, short communication channels, no departmental boundaries. What you build, you see in action. What you improve, makes an immediate difference.
- Customized training and certifications tailored to your role – not a standard catalog.
- Modern hardware & quiet working environment - Small office units that enable focused work.
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Benefits
Health, Fitness & Fun
Topics You Will Work On
Job Locations
About Your Employer
Wünsch AG
Since 1991, Die Wünsch AG has established itself as a leading IT consulting firm. We combine business and IT knowledge to create value-added solutions, and our decades of experience allow us to tailor each solution to our clients' individual needs.
Description
- Founding Year
- 1991
- Company Type
- Digital Agency
- Working Model
- Onsite
- Industry
- Internet, IT, Telecommunication
IT system administrator
- Location
- Ditzingen
- Working Model
- Onsite
- Diversity
- Open for all genders
