Test Engineer

Location Name: Pune Corporate Office - Mantri
Job Purpose
To ensure the quality, reliability, performance, and stability of enterprise Contact Center applications through comprehensive functional, integration, API, automation, regression, and performance testing.
The role requires hands-on expertise in testing VoIP-based Contact Center solutions, including Asterisk, FreeSWITCH, Kamailio, inbound/outbound dialers, IVR, Voice Bots, CRM integrations, and REST APIs.
Responsible for designing and executing test strategies, identifying defects, validating end-to-end calling workflows, and ensuring production readiness of Contact Center applications supporting high-volume business operations.
Duties And Responsibilities
Functional Testing
Perform functional, regression, integration, and end-to-end testing.
Validate inbound/outbound calling, campaign management, IVR, and call routing.
Test agent login, call transfer, conference, disposition, callback, and rechurn functionalities.
VoIP & Dialer Testing
Test Asterisk, FreeSWITCH, Kamailio, and SIP-based applications.
Validate SIP trunking, call connectivity, call recording, and voice quality.
Identify call failures, audio issues, and telephony defects.
API & Database Testing
Perform REST API testing using Postman.
Validate integrations between Dialer, CRM, Voice Bot, and other applications.
Perform database validation using SQL, PostgreSQL, and MySQL.
Validate CDR, disposition, reporting, and data accuracy.
Automation & Performance Testing
Develop and execute automation test scripts using Selenium, Playwright, or Python.
Perform load and performance testing using JMeter.
Validate concurrent calls, CPS, dialing throughput, and application response times.
Defect & Release Management
Identify, report, and track defects through closure.
Coordinate with development teams for issue resolution.
Support SIT, UAT, production deployment, and regression testing.
Prepare test cases, execution reports, and QA sign-off recommendations.
Key Decisions / Dimensions
Experience with Asterisk, OpenSIPS, or other VoIP platforms.
Knowledge of WebRTC and real-time communication technologies.
Familiarity with REST APIs and their integration with VoIP systems.
Exposure to testing frameworks for end-to-end testing.|Key numerical data which will reflect the scope and scale of activities concerning this job)
Define testing scenarios and test coverage.
Identify and prioritize defects based on severity.
Recommend application readiness for production deployment.
Suggest improvements in testing processes and automation.
Escalate critical defects and quality risks.
Major Challenges
# Challenge Description
1 Application Quality Ensure stable and defect-free application delivery.
2 High Call Volume Validate performance during high concurrent calling.
3 VoIP Testing Identify call failures and voice quality issues.
4 Integration Testing Ensure smooth integration across CRM, Dialer, and Voice Bot.
5 Automation Reduce manual testing through automation.
6 Release Timelines Complete testing within planned release timelines.
7 Production Stability Minimize production defects and recurring issues.
Required Qualifications And Experience
Minimum qualification required is BE/B-Tech/ Computer Science / IT and electronics with an Implementation
BE/B.Tech in Computer Science, IT, Electronics, or a related field.
Experience
3+ years of experience in Software QA and Testing.
Experience in Contact Center, Dialer, Telecom, or VoIP applications preferred.
Experience in automation and API testing.

Work arrangement
No