Ratiodata SE | Germany | 60xxx, 48xxx, 47xxx, 65xxx Duisburg, Frankfurt am Main, Münster | Permanent position | Full time / Home office | Published since: 02.10.2026 on stepstone.de
System Administrator Unified Communications (m/f/d)
Are you looking for new challenges and career opportunities? You want to actively shape your future? Then come to us! We are one of the largest system houses and technology partners in Germany with over 1,500 colleagues at 11 locations. Apply now and show us what bits and bytes you are made of. .
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Your tasks • Your profile • What we offer
Ensuring the stable, safe and performant operation of unified communication and contact center solutions focusing on Microsoft Teams Voice and Genesys Planning, implementation and further development of voice, telephony and contact center solutions Configuration and optimization of Call Routing, IVR, Queues, Direct Routing, Session Border Controllers and interfaces between Microsoft Teams and Genesys Analysis and sustainable elimination of complex disturbances in 2nd and 3rd level support as well as processing of incidents, problems and changes Implementation of releases, upgrades, migrations and technical optimizations Development of technical solutions based on technical and customer-specific requirements Creation and maintenance of operational, architectural and system documentation Technical consulting of customers and close cooperation with internal departments and technical interfaces Automation of recurring operational tasks and continuous improvement of service
Complete IT training, for example as a specialist informant:in for system integration, a study of computer science or a comparable qualification Multiannual professional experience in Unified Communications, Voice or Contact Center Knowledge found in Microsoft Teams Phone or Enterprise Voice and Genesys, ideally Genesys Cloud CX Very good knowledge of VoIP, SIP, RTP, Call Routing, Direct Routing, Session-Border controllers and relevant network technologies Experience in the planning, implementation, migration and operation of complex unified communication or contact center environments Advantageous knowledge of PowerShell as well as handling APIs and automation solutions Communication strength and safe occurrence to customers and technical contact persons:inside Very good German knowledge (min. C1) as well as good English knowledge in word and writing
30 days off Mobile work and flexible working time models Hansefit Corporate Fitness Further education Modern workplace equipment JobBike & other benefits No suit, no costume, no problem
Location
 | Ratiodata SE | |
| Am Rübenacher Wald 14, 56072 Duisburg, Frankfurt am Main, Münster | ||
| Germany |
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