Jio graduate engineer trainee recruitment 2026, Mumbai freshers

Reliance Jio off campus hiring is open in Mumbai for a Graduate Engineer Trainee role in the core network team, and it is a clean fresher opening for B.E. and B.Tech graduates who want to work on real telecom infrastructure. Jio runs one of the largest mobile networks in the world, so a trainee here learns how a national 4G, 3G and 2G core network is designed, monitored and kept running.

About this role at Jio

As a Graduate Engineer Trainee you will support the core network team that keeps Jio's mobile services working for millions of users. The work is hands-on and technical: you help design parts of the core network, monitor how it performs, and troubleshoot issues when they appear. It is a strong first job for anyone who likes networks, signalling and problem solving.

Key responsibilities

• Support the design of core network architecture
• Coordinate with device and product teams to develop requirements for 4G, 3G and roaming capability
• Support 4G, 3G and 2G 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, and analyse call flow and signalling issues
• Troubleshoot core alarms and outages, and document configurations and changes
• Coordinate with RAN and transport teams and support upgrades and new node rollout

Eligibility and who can apply

This is a fresher role, so recent graduates are exactly who Jio is looking for. The education requirement is simple.

• B.E. or B.Tech
• Experience requirement: Fresher
• Basic knowledge of 4G, 3G and 2G networks
• Basic understanding of signalling protocols and IP networking
• Strong analytical and troubleshooting skills, with the ability to interpret network KPIs

Skills that help you stand out

Because this is a core network role, anything that shows you understand mobile networks will help. Familiarity with telecom standards, a clear grasp of IP networking basics, and good written and verbal communication all make your application stronger, along with a genuine learning mindset and the ability to work in a team.

Location and work mode

The role is based in Mumbai. Jio's core network teams sit close to the company's largest operations, so you learn from engineers who run the live network every day.

How to apply for Jio off campus 2026

Apply only through the official Jio careers portal linked on this page. Jio does not charge any fee to apply, and no genuine recruiter will ask a fresher to pay for a job. Open the official link, read the full description on the Jio careers site, and apply with an updated resume that highlights your networking basics, any telecom or IP networking coursework, and your projects.

A quick, honest note

The listing does not publish a salary, so treat any specific figure on unofficial pages as unverified. Always confirm the role, the fresher eligibility and the Mumbai location on the official Jio page before you apply, and keep a copy of your application confirmation.