SDM (Subscriber Data Management) Engineer

STL Digital Ltd.; India; On-site; INR 2,500,000 - 4,200,000; Full time

Job summary

STL Digital Ltd. is seeking an experienced SDM Engineer to deploy and integrate Nokia SDM solutions across telecom core networks in India.

You will design interfaces, develop MOPs, and work with Diameter and MAP protocols, leveraging 5+ years in telecom core networks and related domains.

The role offers hybrid work options and exposure to modern 3GPP architectures (UDM, HLR, HSS, One NDS) within a dynamic digital transformation environment.

Qualifications

• 5+ years in telecom core networks or R&D technical support environments.
• Bachelor's degree in Telecommunications, Computer Science, or Electrical Engineering.
• Strong understanding of 3GPP standards and 4G/5G architecture (UDM, AUSF).

Responsibilities

• Deploy, configure, and integrate Nokia SDM solutions into telecom core networks.
• Prepare technical reports, High-Level/Low-Level Designs (HLD/LLD), and MOP documents.
• Deep understanding of subscriber data provisioning, database architecture, and Diameter/MAP protocols.

Skills

Telecom core networks

3GPP standards

Cloud infrastructure

Databases

Education

Bachelor's degree in Telecommunications/Computer Science/Electrical Engineering

Tools

Nokia SDM/HLR/HSS/One EIR/One NDS

Job description

Description

Job Title: SDM Engineer

Location: Anywhere in India | Experience: 6-15 Years

Who We Are

at STL Digital, we don't just build software; we engineer digital transformations. We partner with global enterprises with a comprehensive portfolio of services, including Product Engineering, Cloud and Cybersecurity, Data and AI, and Enterprise SaaS.

Key Responsibilities

• Deploy, configure, and integrate Nokia SDM solutions (UDM, SDL, One-NDS, HSS, HLR, and EIR) into telecom core networks.
• Prepare technical reports, High-Level/Low-Level Designs (HLD/LLD), and Method of Procedure (MOP) documents.
• Deep understanding of subscriber data provisioning, database architecture, and protocols like Diameter (Sh, Cx, Dx) and MAP.

Preferred Skills

• Experience: 5+ years in telecom core networks or R&D technical support environments.
• Education: Bachelor's Degree in Telecommunications, Computer Science, or Electrical Engineering.
• Technical Knowledge: Strong understanding of 3GPP standards, 4G/5G architecture (UDM, AUSF), cloud infrastructure, and databases.

Requirements

• Experience in Nokia SDM/HLR/HSS/One EIR/One NDS
• Remote or Hybrid