PSTN & IMS Solution Integrator

Role: Solution Integrator ( PSTN & IMS )

Experience: 9 - 12 Years

Location: Hyderabad, Bangalore, Chennai, Delhi

Job Description:

Key Responsibilities

Key Responsibilities

• Deploy, integrate, migrate, and support IMS-based voice platforms.
• Perform installation, configuration, and integration of IMS Core network components, including CSCF, BGCF, HSS, MGW, and other IMS network elements.
• Execute software upgrades, feature activations, patch deployments, and network modernization activities.
• Perform Method of Procedure (MOP) activities, including pre-implementation checks, deployment execution, rollback procedures, and post-deployment validation.
• Integrate IMS Core networks with PSTN, EPC, 5G Core (5GC), and external application and service platforms.
• Conduct interoperability testing and troubleshooting in multi-vendor environments.
• Analyze deployment issues, service impacts, and integration failures and drive timely resolution.
• Support maintenance windows, emergency changes, and production deployments.
• Prepare deployment documentation, implementation reports, runbooks, and operational handover documents.
• Coordinate effectively with architecture, testing, operations, and vendor teams.

Required Skills & Expertise

IMS & PSTN Domain

• Deep expertise in IMS Core Integration and Mobile Voice Services.
• Strong hands-on experience in IMS deployment, integration, migration, and operations.
• Strong understanding of IMS architecture, SIP signaling, voice services, and PSTN interworking and integration.
• Knowledge of IMS Core components, interfaces, and call flows.
• Experience integrating IMS platforms with EPC, 5GC, PSTN, and external service platforms.
• Experience conducting interoperability validation and troubleshooting across multi-vendor networks.

Cloud-Native & Automation

• Experience with Kubernetes-based Cloud Native Function (CNF) deployments.
• Strong knowledge of Kubernetes, Docker, Helm Charts, and containerized telecom platforms.
• Understanding of API-based integrations and operational data exposure.
• Awareness of Model Context Protocol (MCP) concepts.