Voice Over LTE/5G Software Engineer

DEK Technologies • Ho Chi Minh City, Ho Chi Minh City • Posted June 12, 2026

Position Overview

Product Overview

We are developing a Session Border Controller (SBC) in the IP Multimedia Subsystem (IMS), which is commonly used by many operators in telecommunication networks all over the world. The SBC is:

  • A carrier-class accessing and interconnecting IMS and other IP multimedia networks;
  • A gateway to guarantee security, privacy, and quality of service for both signaling and media;
  • One product for supporting multimedia IMS applications such as Voice over LTE (VoLTE), Video over LTE (ViLTE), WiFi-calling, SIP Trunking, Rich Communication Services (RCS), and interconnect scenarios;
  • Deployed in Enterprise infrastructures or any carrier network delivering commercial residential, business, fixed-line, or mobile VoIP services;

    • Responsibility

    By joining our distributed cross-functional teams between Sweden and Vietnam, you will be involved in the full system development lifecycle:

  • Analyze and propose the sol...