Senior Test Engineer

Mavenir; Bengaluru; On-site; INR 1,200,000 - 1,800,000; Full time

Job summary

Mavenir in Bengaluru is seeking a Senior Test Engineer with 5–6 years of experience to test IMS-based telecom products and AI-powered communication applications. You will work on end-to-end call flows, signaling, media validation, and automation in cloud-native environments.

The role covers functional, performance, and regression testing, plus AI validation, API tests, and CI/CD integration. Immediate availability preferred.

Qualifications

• 5-8 years of relevant experience in telecom/IMS testing.
• Experience with IMS/SIP networks and AI testing products.

Responsibilities

• Perform functional, integration, system, performance, and regression testing of IMS-based products.
• Validate end-to-end call flows across IMS network elements.
• Analyze and troubleshoot telecom signaling and media issues.
• Execute interoperability testing with IMS components and network elements.
• Perform capacity, load, scalability, failover, resiliency, and soak testing.
• Test AI-powered products such as Voice Translation, STT, Conversational AI, and Real-time Media.
• Validate AI inference, latency, scalability, and multilingual capabilities.
• Design and implement automation frameworks using Python.
• Develop test scripts for APIs, SIP call flows, and media scenarios.
• Execute testing in Kubernetes/OpenShift environments.
• Validate deployment, upgrade, rollback, and high-availability scenarios.
• Analyze SIP traces using Wireshark, HOMER, or equivalent tools.
• Validate RTP, SRTP, RTCP media flows.
• Debug signaling and media issues across distributed systems.
• Review logs, packet captures, and KPIs to identify product defects.

Skills

IMS Architecture

SIP

SDP

RTP/SRTP

RTCP

Diameter

HTTP/REST APIs

WebRTC

Python

PyTest/Robot Framework

CI/CD

API Automation

Kubernetes/OpenShift

Debugging

Tools

Wireshark

HOMER

SIP Tracing

Jenkins

GitLab

GitHub Actions

OpenShift

Job description

Role Summary

We are looking for a highly skilled Senior Test Engineer with 5-6 years of experience in testing IMS-based telecom products and next-generation AI-powered communication applications, including Voice Translation, Speech Processing, Conversational AI, and Real-Time Media platforms

Key Responsibilities

IMS & Telecom Testing

• Perform functional, integration, system, performance, and regression testing of IMS-based products.
• Validate end-to-end call flows across IMS network elements.
• Analyze and troubleshoot telecom signaling and media issues.
• Execute interoperability testing with various IMS components and network elements.
• Perform capacity, load, scalability, failover, resiliency, and soak testing.

AI Product Testing

• Test AI-powered communication products such as:
• Voice Translation
• Speech-to-Text (STT)
• Conversational AI / Voice Bots
• Real-time Media Processing
• Validate AI inference accuracy, latency, scalability, and multilingual capabilities.

Automation & Cloud-Native Testing

• Design and implement automation frameworks using Python.
• Develop test scripts for validating APIs, SIP call flows, and media scenarios.
• Execute testing in Kubernetes/OpenShift environments.
• Validate deployment, upgrade, rollback, and high-availability scenarios.

Protocol & Media Validation

• Analyze SIP traces using Wireshark, HOMER, or equivalent tools.
• Validate RTP, SRTP, RTCP media flows.
• Debug signaling and media issues across distributed systems.

Review logs, packet captures, and KPIs to identify product defects

Job Requirements

• Telecom / IMS: IMS Architecture, SIP, SDP, RTP/SRTP, RTCP, Diameter, HTTP/REST APIs, WebRTC
• IMS Network Elements: SBC, TAS/Application Server, MRF, IMS Core Components
• Automation: Python (Mandatory), API Automation, PyTest/Robot Framework, CI/CD (Jenkins, GitLab, GitHub Actions)
• Experience: 5 - 8 years of relevant experience
• Candidates available to join immediate and currently working in Bangalore are preferred