Synthflow AI is an enterprise AI agent platform that unifies customer operations across voice, chat, and messaging. Our agents handle routine interactions at scale so teams can focus on high-value work. Over 20M hours of operations automated 60% more calls answered vs. non-AI operators 150M interactions handled, 99.99% uptime Backed by Accel, Atlantic Labs, and Singular. Trusted by 1,000+ customers. Recognized as one of the most promising companies in Germany.
We’re looking for a hands‑on VoIP Engineer to help build, maintain, and improve our telephony infrastructure, with a focus on Kamailio and RTPEngine. You’ll work on SIP routing, media handling, and production troubleshooting to keep our voice services reliable and performant. This role is a good fit for someone with practical Kamailio and RTPEngine experience, working knowledge of FreeSWITCH, and strong Linux and SIP/RTP debugging skills.
Your Responsibilities
- Deploy, configure, and maintain Kamailio and RTPEngine
- Troubleshoot SIP signaling, RTP media, and call quality issues
- Support FreeSWITCH services and Linux‑based telephony infrastructure
- Improve call routing, load balancing, failover, and monitoring
- Manage configurations in Git and document operational changes
What We’re Looking For
- Hands‑on experience with Kamailio and RTPEngine
- Strong SIP/RTP debugging skills using tools like sngrep, tcpdump, or Wireshark
- Working knowledge of FreeSWITCH
- Solid Linux administration and networking skills
- Experience with Git and collaborative change management
- Nice to have: GCP, Kubernetes, Python or Go, and Bash scripting
Founded in Berlin in 2023 by serial entrepreneurs Albert Astabatsyan, Hakob Astabatsyan, and Sassun Mirzakhan‑Saky, Synthflow AI democratizes access to advanced voice AI with a no‑code platform that lets enterprises easily create, deploy and scale natural‑sounding, cost‑effective voice agents tailored to their business needs.
#J-18808-Ljbffr
Lead/Senior VoIP Engineer in Berlin Arbeitgeber: Deel
Deel ist ein hervorragender Arbeitgeber, der seinen Mitarbeitern die Möglichkeit bietet, in einem dynamischen und vielfältigen Umfeld zu arbeiten, das Innovation und kontinuierliches Lernen fördert. Mit einer starken Unternehmenskultur, die auf Inklusion und Chancengleichheit setzt, profitieren Mitarbeiter von flexiblen Arbeitsmodellen, umfangreichen Schulungs- und Entwicklungsmöglichkeiten sowie attraktiven Vergütungsprogrammen. Als Teil eines globalen Teams haben Sie die Chance, bedeutende Herausforderungen zu meistern und einen echten Einfluss auf die Zukunft der Arbeit zu nehmen.
