Role: Architect Voice, Mobile Roaming & IoT

Work Experience: 15+ Years

Location: Hyderabad, Begumpet India

Department: Information Systems – IoT, Voice & Roaming Architecture.

About the Role:

We are seeking a highly experienced and visionary Architect to join the Voice, Mobile Roaming, and IoT Architecture group within iBASIS. In this strategic role, you will lead the endtoend architecture, design, and evolution of our global Voice, Roaming, and IoT platforms.

You will define technical roadmaps, drive crossdomain solution architecture, and ensure the scalability, reliability, and security of all signaling, roaming, and IoT services. This role is central to iBASIS’s mission to remain a global leader in IPX, mobile roaming, and nextgeneration IoT connectivity.

You'll Bring:

1. Bachelor’s or master’s degree in electrical engineering, Telecommunications, or Computer Science with 15+ years of experience in the telecommunications domain.
2. Deep expertise in Voice (TDM & VoIP), Mobile Roaming, and IoT architectures, including endtoend service design.
3.



Extensive handson and architectural experience with 3G, 4G, and 5G signaling: MAP, Diameter, SIP/IMS, HTTP/2, GTPC/U, SBA interfaces, and interworking models.
4. Strong understanding of roaming technologies, including SS7, Diameter Roaming, LTE/VoLTE Roaming, 5G interface, IPX models, and fraud/security frameworks.
5. Proven experience designing and integrating mobile core systems such as HLR/HSS, STP/DRA, SMSC, MME/AMF, SGW/UPF, PGW/SMF, IMS Core, SBCs, and GTP proxies.
6. Expertise in IoT connectivity architectures, eSIM/eUICC, CMP platforms, SIM provisioning flows, and GSMA M2M/IoT standards.
7. Ability to lead crossfunctional engineering teams, influence stakeholders, and drive architectural governance.
8. Strong analytical mindset with the ability to be highest level of knowledge for troubleshooting complex signaling and roaming issues across multivendor environments.

Valuable to Have:

1. Experience working with

📌 Architect Voice, Mobile Roaming (Hyderabad)
🏢 IBASIS
📍 Hyderabad