citadelle systems AG
As of 1 November 2026, citadelle systems AG has 21 open roles (14 new in 30 days), its it operations & business systems team is hiring most, and its postings name Checkmk, Microsoft Windows and Microsoft Hyper-V as the tools the team works in.
As of 1 November 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.
- Headquarters
- Essen, Nordrhein-Westfalen, Germany
- Employees
- 201-500 employees (estimated)
- Sells to
- small and medium enterprises
- Certifications on site
- Site languages
- DE
- Career system
- Softgarden
citadelle systems AG in one screen
Read from citadelle.ag: what the company does, the customers it names, the buyers we can actually see, and the companies that sell the same thing.
citadelle systems AG is an IT system house group that provides IT services for small and medium enterprises across Germany. Its offerings include hardware, IT infrastructure, cloud and managed services, printer and scanner solutions, and IT security. The group operates from 14 locations nationwide.
Named on the site: small and medium enterprises.
Nearest companies by what they do, sell and whom they serve, 51+ employees. 590 scored.
What citadelle systems AG says it runs
Tools named in the company's own postings as the team's systems, with the sentence that says so. What the website and DNS show is listed separately.
· Monitoring, idealerweise mit Checkmk• Windows Client und Server, Virtualisierung (VMware, Hyper-V)• Windows Client und Server, Virtualisierung (VMware, Hyper-V)• Windows Client und Server, Virtualisierung (VMware, Hyper-V)• Kenntnisse in mehreren der folgenden Bereiche: Windows Client und Server, Virtualisierung (HyperV), Active Directory, DNS, DHCP, Gruppenrichtlinien, Microsoft 365, Backup Lösungen, Netzwerke und Firewalls• Kenntnisse in mehreren der folgenden Bereiche: Windows Client und Server, Virtualisierung (HyperV), Active Directory, DNS, DHCP, Gruppenrichtlinien, Microsoft 365, Backup Lösungen, Netzwerke und Firewalls• Kenntnisse in mehreren der folgenden Bereiche: Windows Client und Server, Virtualisierung (HyperV), Active Directory, DNS, DHCP, Gruppenrichtlinien, Microsoft 365, Backup Lösungen und Netzwerke• Sehr gute Excel-Kenntnisse und idealerweise Erfahrung mit DATEV sowie ERP-, Konsolidierungs-, Planungs- oder Reportinglösungen• Kenntnisse in mehreren der folgenden Bereiche: Windows Client und Server, Virtualisierung (HyperV), Active Directory, DNS, DHCP, Gruppenrichtlinien, Microsoft 365, Backup Lösungen, Netzwerke und FirewallsAzure App Services, Web Apps, Environments)FastAPI, Automationen)• Vertraut mit Git‑Workflows, Tests und sauber dokumentiertem Code• Deployen, Konfigurieren und Betreiben von Web-Applikationen in Microsoft Azure (z.OAuth, Entra ID)Vendors whose code loads on citadelle.ag or whose records sit in its DNS. Page plumbing (libraries, fonts, consent banners) is left out.
21 open roles, 21 opened in 90 days
Read hourly from the company's career system. Open roles and new roles in the last 30 days, by team. Companies hiring it operations & business systems in Germany →
| open · new 30 d | |
|---|---|
| IT operations & business systems | 14 · 11 |
| Sales | 2 · 1 |
| Finance & accounting | 1 · 1 |
| Software engineering | 1 · 0 |
What is changing, read from the postings
Intents are events the employer states about itself, each with the sentence and the posting it came from.
No change signals read in the current postings.
Sales, marketing and IT leaders by function. Add citadelle systems AG to a monitor and get a webhook when a role opens, a tool appears or a signal is read.
Start free, no card. The first 20 are above; e-mails are verified at the mail server when you open them.
Companies like citadelle systems AG
Nearest by what they do, what they sell and whom they sell to, 51+ employees. 6 of 590 scored.
From the company's own website
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
citadelle systems AG (Essen, Germany, 201-500 employees) has 21 open roles, 14 new in 30 days, and names 14 tools in its postings. (Breaknorm, 1 November 2026, https://breaknorm.co/company/citadelle.ag)
Read from the source, not self-reported
Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →
- ProfileBuilt from citadelle.ag: summary, offerings, customers, certifications and contact points are extracted from its pages, with a confidence score per field.
- HiringRead hourly from the company's Softgarden career site; reposts collapse into one record.
- Tech stackTools the employer's own text names as the team's systems, with the quote; website scripts counted separately.
- HeadcountLinkedIn where known, otherwise estimated from the site.
citadelle systems AG: questions
Does citadelle systems AG use Checkmk?
Yes, by the company's own words: 4 postings name it, first seen 2026-10-17, in the it operations & business systems team.
Is citadelle systems AG hiring?
21 open roles as of 1 November 2026, 14 opened in the last 30 days and 0 closed. The largest team hiring is it operations & business systems.
Where does this profile come from?
From citadelle.ag itself: we crawled it on 2026-08-02, built the profile on 2026-08-22, and read its career site (Softgarden) hourly since. Headcount is from LinkedIn.
Who should I write to at citadelle systems AG?
The people are behind the login: decision makers by function, verified at the mail server when you open them. 5 public role addresses from the site are there too.
Get this company your way
The same data as a search, over MCP and the API, as bulk files, or pushed to you as it changes.
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