Reliance Jio
Graduate Engineer Trainee
About this role
This trainee role sits in Reliance Jio's core network function in Mumbai. The work covers supporting 2G, 3G and 4G core operations, watching network KPIs and service parameters, and helping with provisioning, authentication and charging checks. Day to day it involves analysing call flow and signalling problems, troubleshooting core alarms and outages, and documenting configuration changes. The person also works with RAN, transport, device and product teams and helps with upgrades and new node rollouts. It suits B.E./B.Tech freshers with a telecom and networking background.
Reliance Jio is hiring for Graduate Engineer Trainee, a full-time role based in Mumbai.
Who can apply: Fresher. Skills: 4G/3G/2G core, Signalling protocols, IP networking, Troubleshooting, Network KPIs.
Hirastra checked that this opening is live. Apply directly through the official posting; applying is always free.
What you'll do
- Support design of core network architecture
- Support 2G, 3G and 4G core operations and monitor core KPIs and service parameters
- Assist in subscriber provisioning flows and validate authentication and charging systems
- Support interconnect and roaming testing
- Analyse call flow and signalling issues and troubleshoot core alarms and outages
- Document configurations and changes, and support upgrades and new node rollout
What you need
- B.E./B.Tech degree
- Fresher (no experience required)
- Basic knowledge of 4G, 3G and 2G networks and signalling protocols
- Basic IP networking knowledge and familiarity with telecom standards
- Strong analytical and troubleshooting skills, and ability to interpret network KPIs
- Good written and verbal communication
- Location
- Mumbai
- Work mode
- See listing
- Experience
- Fresher
- Pay
- ₹5–8 LPA (Est.)
- Type
- Full-time job, Developer
- Added
- 8 October 2026
Skills
- 4G/3G/2G core
- Signalling protocols
- IP networking
- Troubleshooting
- Network KPIs
"Est." = Hirastra's estimate based on market data, not an official figure.
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