Are you a fresh engineering graduate passionate about telecommunications and network engineering? The Graduate Engineer Trainee position at Reliance Jio Mumbai offers an exceptional opportunity to work with India’s largest telecom operator on designing and engineering end-to-end international networks while gaining expertise in 4G, 3G, and 2G technologies.
Reliance Jio, India’s leading telecommunications company, is seeking talented engineering graduates to join their network engineering team. This role provides comprehensive exposure to international network design, global roaming capabilities, network validation, and troubleshooting while working on cutting-edge telecom infrastructure that serves hundreds of millions of subscribers across India and internationally.

🚀 About the Graduate Engineer Trainee Role at Jio
This position focuses on designing, planning, and engineering end-to-end international networks for Jio’s global connectivity. You’ll work closely with device and product teams to develop requirements supporting seamless global roaming, validate technical designs for authentication, authorization, accounting, and billing systems, and analyze network performance to ensure optimal service delivery for Jio’s massive subscriber base.
📊 Job Details
| Detail | Information |
|---|---|
| Company | Reliance Jio (Jio Platforms Limited) |
| Position | Graduate Engineer Trainee |
| Location | Mumbai, Maharashtra, India |
| Job Type | Full-time |
| Experience Required | Fresher (0 years) |
| Industry | Telecommunications / Network Engineering |
About Reliance Jio
Company Overview
Reliance Jio is India’s largest telecommunications company and leading digital services provider:
- Launched: September 2016
- Subscribers: 450+ million (one of the world’s largest)
- Parent Company: Reliance Industries Limited
- Network: Pan-India 4G LTE network with 5G rollout
- Innovation: Pioneer in affordable data and digital services
Primary Job Responsibilities
1. International Network Design and Planning
- Design comprehensive end-to-end international network architectures
- Plan network topology and infrastructure for global connectivity
- Engineer solutions for seamless international roaming and data services
- Develop network expansion strategies for new international markets
2. Device and Product Team Coordination
- Coordinate with device teams to develop requirements for 4G, 3G, and 2G roaming capability
- Work with product teams to define technical specifications for roaming services
- Ensure device compatibility across different network technologies
- Support testing and validation of devices for multi-network operation
3. Technical Validation and Requirements Engineering
- Validate technical requirements for enabling seamless global roaming
- Design and review authentication systems for roaming subscribers
- Ensure robust authorization mechanisms for international network access
- Validate accounting systems for accurate usage tracking
- Review billing integration for roaming charges and settlements
4. Business Proposals and Technical Documentation
- Support preparation of technical proposals for new network deployments
- Contribute to upgrade and investment proposals with technical analysis
- Provide technical inputs for internal business decisions
- Assist in budgeting processes with cost-benefit analysis
5. Service Provider Capability Validation
- Execute validation of service provider capabilities for roaming partnerships
- Assess network performance of international roaming partners
- Evaluate coverage maps and service quality metrics
- Conduct technical due diligence on potential roaming partners
6. Network Analysis and Troubleshooting
- Analyze network performance metrics and identify bottlenecks
- Troubleshoot complex network issues affecting roaming services
- Perform route analysis for optimal traffic flow
- Monitor network health and service quality indicators
7. Root Cause Analysis and Continuous Improvement
- Identify root causes of network issues through systematic analysis
- Make data-driven recommendations for network improvements
- Propose optimization strategies for better performance
- Suggest cost-effective solutions for network challenges
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📋 Required Qualifications and Skills
Educational Requirements
Required Degree: B.E. / B.Tech (Bachelor of Engineering / Bachelor of Technology)
Preferred Specializations:
- Electronics and Communication Engineering (ECE)
- Telecommunications Engineering
- Electrical Engineering
- Computer Science Engineering
- Information Technology
- Related engineering disciplines
Experience: Fresher (0 years of professional experience)
Required Technical Skills and Knowledge
| Skill Category | Requirements |
|---|---|
| Network Technologies | Knowledge of 4G LTE, 3G UMTS, and 2G GSM networks |
| Network Deployment | Understanding of network planning and deployment processes |
| Telecom Protocols | Familiarity with telecom signaling and protocols |
| Roaming Systems | Basic understanding of roaming architecture |
💰 Expected Salary Range
| Component | Annual CTC Range |
|---|---|
| Graduate Engineer Trainee | ₹6 – 9 LPA (estimated) |
Note: Actual compensation not specified in job posting. Estimated range based on Jio’s market positioning for GET roles.
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How to Prepare for the Application
Technical Preparation
- Study 4G LTE architecture including EPC, eNodeB, MME, HSS
- Learn 3G UMTS and 2G GSM network fundamentals
- Understand roaming architecture and signaling flows
- Review telecom protocols like SS7, Diameter, GTP
Domain Knowledge
- Read about international roaming and interconnection
- Understand GSMA standards and roaming agreements
- Learn about authentication, authorization in telecom (AAA)
- Study billing and charging systems in telecommunications
Interview Readiness
- Prepare to discuss academic telecom projects in detail
- Review fundamentals of wireless communication
- Practice explaining technical concepts clearly
- Prepare questions about Jio’s network and technology
Certifications (Optional but Helpful)
- Telecommunications basics certifications
- Network fundamentals courses
- LTE and 5G technology courses
- Cisco or similar networking certifications
Career Growth Path at Jio
Typical Progression:
- Graduate Engineer Trainee (Year 0-2)
- Assistant Manager – Network Engineering (Year 2-4)
- Manager – Network Planning/Operations (Year 4-6)
- Senior Manager (Year 6-8)
- General Manager / AGM (Year 8+)
Important Notes
📍 Location: Mumbai-based role – relocation may be required
📱 Industry: Fast-paced telecommunications with 24×7 operations
📚 Learning Curve: Steep learning in initial months with comprehensive training
🌐 Global Exposure: Work on international networks and roaming partnerships
⚡ Innovation: Opportunity to work on next-generation 5G technologies
👥 Team Size: Work with large, distributed network engineering teams
Disclaimer: This job information is collected from official and publicly available sources. We do not charge any fees for job applications, do not guarantee recruitment, and are not responsible for any loss or damage arising from reliance on this information.
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