Solution Architect - IMS Core Services

Role: Solution Architect ( IMS Core )

Experience: 12-15 Years

Location: Hyderabad, Bangalore, Chennai, Delhi

Job Description:

Key Responsibilities

• Design, plan, and implement IMS-based voice solutions including:
• VoLTE
• VoWiFi
• VoNR
• Translate business and service requirements into:
• High-Level Designs (HLDs)
• Low-Level Designs (LLDs)
• Deployment-ready architecture documents
• Architect and integrate IMS Core network components:
• P-CSCF
• I-CSCF
• S-CSCF
• SBC
• TAS
• HSS / UDM
• Design integrations with:
• EPC (4G Core)
• 5GC (5G Core)
• Lead architecture reviews, design assurance activities, and interoperability assessments.
• Perform:
• Capacity planning
• Resiliency analysis
• Scalability assessments
• Multi-vendor solution validation
• Design and validate regulatory services such as:
• Emergency Calling (999/112)
• Lawful Intercept (LI)
• Number Portability
• Ensure HLD-to-LLD traceability and alignment between design, implementation, testing, and deployment.
• Provide technical leadership during:
• Integration
• System testing
• Migration activities
• Production rollouts
• Collaborate with operators, vendors, engineering teams, and stakeholders to resolve architecture and service design challenges.
• Contribute to cloud-native IMS evolution, automation strategies, and autonomous network initiatives.

Required Technical Skills

Mandatory IMS & Core Network Skills

• IMS Core Architecture
• Mobile Voice Services
• VoLTE, VoWiFi, VoNR
• Session Border Controller (SBC)
• Telephony Application Server (TAS)
• SIP Signaling
• Diameter Protocol
• Call Routing & Interconnect
• Roaming Architecture
• Policy Control
• EPC / 5G Core Integration
• HLD / LLD Documentation
• Design Traceability
• Capacity Planning
• High Availability & Resiliency Design
• Multi-vendor Telecom Environments
• Architecture Governance & Reviews

Telecom Domain Expertise

• Emergency Services
• Lawful Intercept (LI)
• Number Portability
• Service Continuity Mechanisms
• Network Migration & Transformation
• Integration & Validation Testing

AI & Agentic AI Requirements

Must-Have AI Knowledge

• Understanding of Agentic AI concepts:
• Single-Agent Architecture
• Multi-Agent Architecture
• Human-in-the-Loop principles
• Google Agent Development Kit (ADK) fundamentals:
• Agents
• Tools
• Agent orchestration
• Ability to determine when:
• An AI Agent is appropriate