VoIP / SIP Engineer | VoIP / SIP Engineer (m/w/d)

Job Summary

As a VoIP / SIP Engineer, you will play a central role in operating and evolving a high-scaling communication platform with direct carrier connections. Your day-to-day responsibilities involve managing SIP/VoIP infrastructure components like Kamailio and Freeswitch, ensuring stable national and international carrier trunking, and optimizing media performance regarding latency and jitter. You will bridge the gap between infrastructure and development by scripting automations and transitioning services toward cloud-native Kubernetes environments. This role is ideal for technical experts who enjoy deep-dive debugging with tools like Homer or sngrep while collaborating closely with DevOps and external partners. The position offers a high degree of autonomy and the chance to work on a platform that impacts millions of users. Unique benefits include a focus on professional growth through workshops and conferences, a hybrid work model, and a culture that avoids unnecessary bureaucracy in favor of hands-on technical excellence.