Job Title: IMS Core Network Engineer - Telecom Location: Richardson, TX - 75081 (Onsite) Duration: Fulltime Experience: 5-8 years Top Must Have s: 4G/IMS-focused Core Engineer supporting VoLTE, signaling, and voice/data flow through IMS environments. Needs to be equally strong in call flow + signaling depth. Must-Have Skills (Non-Negotiable) Strong experience with IMS (IP Multimedia Subsystem) Deep understanding of 4G LTE core architecture Ability to explain end-to-end call flows (voice + signal