QA Engineer

Job Location: hybrid in town

Role Overview

We are looking for a QA Engineer to join our VoIP team and ensure the quality and reliability of voice communication services. In this role, you will be responsible for validating end-to-end call flows, identifying issues in signaling and media streams, and contributing to the overall stability of our telephony platform.

Key Responsibilities

• Design, develop, and execute test cases for VoIP services (functional, regression, and integration testing)
• Validate end-to-end call flows (registration, call setup, call teardown, error scenarios)
• Perform testing of SIP signaling, RTP media streams, and related protocols
• Analyze logs and network traffic to identify issues (e.g., using tools like Wireshark)
• Collaborate closely with developers, DevOps, and product teams to clarify requirements and ensure quality
• Participate in release validation and support production issue investigations
• Contribute to test automation for API and service-level testing
• Identify, document, and track defects, ensuring clear reproduction steps and impact assessment
• Continuously improve QA processes, test coverage, and efficiency

Required Skills & Experience

• Experience in software testing (manual and/or automation) and basic understanding of VoIP technologies (SIP, RTP, call flows)
• Experience with API testing (e.g., REST, Postman, or similar tools) and Ability to analyze logs and troubleshoot complex issues
• Understanding of network fundamentals (TCP/IP, UDP, latency, packet loss)
• Familiarity with bug tracking and test management tools (e.g., Jira, TestRail)
• Strong analytical thinking and attention to detail

Nice to Have

• Hands-on experience with VoIP platforms (e.g., softswitches, SBCs, PBX systems)
• Experience using Wireshark or similar packet analysis tools
• Knowledge of Linux environments and basic command-line usage
• Experience with test automation frameworks (e.g., Python, Java, or similar)
• Understanding of CI/CD pipelines

What Success Looks Like

• Ability to independently validate complex VoIP scenarios
• Early identification of issues affecting call quality and reliability
• Effective collaboration with cross-functional teams
• Contribution to improved test coverage and faster release cycles

Why Join Us

• Work on real-time, high-load systems with direct impact on customer experience
• Opportunity to grow expertise in VoIP and telecom domain
• Collaborative environment with strong engineering culture
• Room to influence quality processes and tools