IMS + PSTN Test / QA Lead

Tata Consultancy Services; Bengaluru; On-site; INR 1,800,000 - 3,000,000; Full time

Job summary

Tata Consultancy Services, Bengaluru, India, seeks an experienced IMS + PSTN Test / QA Lead to steer validation across next-generation voice networks and traditional PSTN environments. You will drive interoperability, gateway validation, signaling analysis, and QA for end-to-end voice services.

Responsibilities include defining tests, validating SIP/SS7/ISUP signaling, and leading defect tracking and RCA activities while coordinating with stakeholders to ensure timely delivery.

Responsibilities

• Lead testing activities across IMS, VoLTE, and PSTN Interconnect environments.
• Define and execute end-to-end test strategies and validation plans.
• Validate SIP, SS7, and ISUP signaling flows.
• Perform gateway, interconnect, and call-flow validation.
• Drive functional, interoperability, regression, and performance testing.
• Execute load and stress validation using Spirent Landslide.
• Lead defect tracking, RCA activities, and quality reviews.
• Collaborate with multiple stakeholders to ensure successful delivery.

Job description

Job Description

We are seeking an experienced IMS + PSTN Test / QA Lead to lead validation activities across next-generation voice networks and traditional PSTN environments. The role focuses on interoperability, gateway validation, signaling analysis, and quality assurance for end-to-end voice services.

Key Responsibilities

• Lead testing activities across IMS, VoLTE, and PSTN Interconnect environments.
• Define and execute end-to-end test strategies and validation plans.
• Validate SIP, SS7, and ISUP signaling flows.
• Perform gateway, interconnect, and call-flow validation.
• Drive functional, interoperability, regression, and performance testing.
• Execute load and stress validation using Spirent Landslide.
• Lead defect tracking, RCA activities, and quality reviews.
• Collaborate with multiple stakeholders to ensure successful delivery.