IT System Administrator - Cloud Telephony / VoIP (m/f/d)

reputatio - we connect people, technology, vision and reality

For over 20 years, reputatio stands for modern cloud telecommunications solutions, IT infrastructure and strategic advice. With our innovative cloud phone system reputatio CallManager as well as our Virtual DataCenter and Dynamic Network solutions, we combine what belongs together – man, technology, vision and reality. In this way, we facilitate the daily life of our business customers from the middle class and the corporate environment through digital communication that works.

Our success is based on a family team culture, characterized by real customer orientation, hands-on mentality, open communication, integrity and humanity – combined with the common motivation to move something sustainably.

What do we offer you? A lot of exciting tasks, space for co-design and opportunities for self-realization.

Apply now at reputatio and become part of our success! You set up cloud telephone systems at our customers: inside and expand these You configure callflows, call forwarding, integrations and AI functions You implement customer-specific requirements, including adaptations and optimizations of the cloud telephony environment You carry out technical analyses and quality assurances in case of deviations in VoIP setups, network components and terminals, such as IP phones, routers and switches You provide technical advice and work with internal teams such as sales, project management and product development You are actively developing our technical standards and best practices in cloud telephony

You have a completed training in IT, e.g. as a specialist informant:in for system integration, or a study of (economic) informatics or comparable You have experience in the technical implementation and further development of IT or telecommunications solutions, ideally in the areas of VoIP/Cloud Telephony You have good knowledge of VoIP technologies, SIP-based communication and network analysis, e.g. with Wireshark You are safe to use common network components such as routers, switches and firewalls You have very good knowledge of German in word and writing (at least C1) You work in a structured, independent and solution-oriented manner and enjoy working together in interdisciplinary teams

We take care of our employees, which is reflected in our benefits. We offer appreciation, flexibility, professionalism and a high social competence. For your well-being at work: Standing in an attractive payment in a crisis-proof industry Flexible working hours and possibility for mobile work and part-time by arrangement Occupational pension & VWL Stunning office with highest quality work equipment in Art Nouveau Villa Good access to the ÖPNV and free parking right outside the door Unforgettable team events such as after work events, excursions & more Accompanied by an onboarding angel during the trial period Target-oriented, valuing leadership style Come as you are: No Dresscode For your professional development: Flat hierarchies, flexibility and short paths: introduce ideas, actively participate and take responsibility. Individual further education: You have a training in mind that you advance in your work? After agreement, we take over the costs. For your health: Special conditions in a high-quality local gym Corporate courses and sports groups Massage days at work JobRad-Leasing Free drinks such as coffee, tea, water and changing snacks In dealing with our employees, authenticity, openness are also very important to us for critical comments and communication at eye level. We are proud of our award as Kununu Top Company 2026 for the fifth time in a row!