Voice Services Java Developer — SIP, Cloud & AI

Rubicon Consulting is seeking a Voice Services Developer to build, maintain, and optimize next‑generation communication platforms. You will bridge traditional telecommunication protocols with cloud‑based AI, focusing on SIP services developed in Java and integrated with open‑source media engines.

Responsibilities include SIP development with JAIN SLEE and SIP Servlets, configuring FreeSWITCH or Asterisk, and integrating Speech AI across AWS, Azure, and GCP, with VoIP troubleshooting using