Lead Engineer – 4G/5G Packet Core & IMS

Job Title: Lead Engineer – 4G/5G Packet Core & IMS

Location: Delhi / Gurgaon

Experience: 2 + Years

Job Type: Full-Time | On-site (Delhi/Gurgaon)

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Role Summary

We are seeking skilled and versatile professionals to join our Services team for the deployment, configuration, testing, integration, and support of 4G/5G Packet Core and IMS product stacks. The role involves working in cloud-native environments and collaborating closely with product engineering and customer teams to deliver standards-compliant telecom solutions.

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Key Responsibilities

1. Configuration & Deployment

• Deploy and configure 4G EPC, 5G Core (NSA/SA), and IMS components in OpenStack, Kubernetes, or OpenShift environments.

• Automate deployments using tools like Ansible, Helm, Terraform, and CI/CD pipelines.

• Ensure deployments are secure, scalable, and resilient across various environments.

2. Testing & Validation

• Develop and execute test plans for functional, performance, and interoperability testing.

• Use telecom tools like Spirent for validation and KPI tracking.

• Perform regression and acceptance testing in compliance with 3GPP standards.

3. Integration

• Integrate network elements such as MME, SGW, PGW, AMF, SMF, UPF, HSS, PCRF, and CSCF.

• Ensure seamless interworking of legacy and cloud-native network functions.

4. Release Management

• Manage version control, release cycles, rollout strategies, and rollback plans.

• Coordinate with cross-functional teams for successful releases.

• Maintain detailed release documentation and logs.

5. Technical Documentation

• Prepare and maintain:

o High-Level and Low-Level Design documents

o Method of Procedure (MoP) & SOPs

o Deployment guides, technical manuals, and release notes

• Ensure documentation is version-controlled and accessible.

6. Field Support & Troubleshooting

• Provide on-site and remote deployment support.

• Troubleshoot live network issues and conduct root cause analysis.

• Ensure service continuity through close collaboration with internal and customer teams.

7. Collaboration with Product Development

• Work with development teams to identify, reproduce, and resolve bugs.

• Provide logs, diagnostics, and test scenarios to support debugging.

• Participate in sprint planning, reviews, and feedback sessions.

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Required Skills and Qualifications

Must-Have

• Bachelor’s/Master’s degree in Telecommunications, Computer Science, or related field.

• Deep understanding of 4G/5G Packet Core and IMS architecture and protocols (GTP, SIP, Diameter, HTTP/2).

• Experience with cloud-native platforms like OpenStack, Kubernetes, and OpenShift.

• Strong scripting skills using Python, Bash, Ansible, and Helm.

• Excellent communication skills and ability to create technical documentation (Confluence, Markdown, LaTeX, MS Word).

• Strong troubleshooting and customer-facing abilities.

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Unique Opportunity

This role is part of a strategic initiative to build an indigenous telecom technology stack that delivers high-performance and standards-compliant LTE/5G core network solutions. It’s a great opportunity to be part of a cutting-edge team shaping India’s telecom future.