Description :

Role: Developer – Cellular Core Network
Location:  Cyber City, Gurgaon
Work Mode: Hybrid (3 days in office / week)
Open Positions: 1

About the Role

We are seeking a highly skilled Developer – Cellular Core Network to design, document, and implement network functions for a cloud-based 3GPP compliant 5G SA home network. The ideal candidate should have strong expertise in cellular network standards, IP networking, and software development with a proven ability to deliver high-quality solutions in a collaborative environment.

Key Responsibilities

Design, document, and implement 3GPP-compliant network functions for 5G SA home network.

Generate accurate schedule estimates and provide daily progress updates in stand-ups.

Deliver thoroughly tested and reliable software in a predictable and timely manner.

Collaborate closely with the Tech Lead and cross-functional team members.

Participate in troubleshooting, debugging, and optimizing core network components.

Ensure compliance with network security protocols and industry best practices.

Desired Domain Experience

3GPP Cellular Network Standards

2G/3G – SS7

4G – Diameter

5G SA

RADIUS

SMS, SMPP

VoLTE

API Development & Security

OAuth2

PKI

mTLS, SSL

IP Networking

Packet inspection

Routing, IP allocation & assignment

Subnets & CIDR specification

IPv6

Development Skills

Required (5–7 years):

Strong hands-on experience in Java

Database expertise in at least one of: MySQL, Oracle, Cassandra, Redis

Network troubleshooting using pcap, Wireshark, tcpdump

Source control management with Git

Desirable:

Spring Boot

Docker / Containers / Kubernetes

C / C++

Education

Bachelor’s degree (B.S.) or higher in Computer Science, Engineering, or related field.

Why Join Us?

Work on cutting-edge 5G SA network technologies.

Opportunity to design and implement cloud-native cellular core solutions.

Collaborative work culture with focus on innovation and learning.

Hybrid work model ensuring flexibility and work-life balance.