VOIP QA Automation Engineer

Vonage is a global cloud communications leader, and they are seeking a VOIP QA Automation Engineer to champion quality for their mission-critical voice platform. The role involves building test frameworks, performing manual testing, and collaborating with developers to ensure the reliability of SIP/voice systems.

Responsibilities:

• Design and maintain Python/SIPssert/SIPP-based test frameworks for voice platform validation
• Create CI/CD pipelines with GitHub Actions for continuous testing
• Write automated test suites for SIP protocols, call flows, and carrier integrations
• Develop monitoring automation with AWS and Grafana to catch issues early
• Improve test infrastructure—speed, reliability, and coverage
• Participate in early system design, providing valuable input on early architectural decisions phases
• Own, triage, investigate and help with resolution and validation of production defects or early stage malfunctions during development
• Manually validate complex voice scenarios and call quality
• Run exploratory and chaos testing to find edge cases
• Analyze SIP call flows using Wireshark, VoipMonitor etc
• Perform performance testing under real-world conditions
• Partner with developers on test strategies and code reviews
• Investigate production issues using logs, traces, and packet captures
• Champion quality best practices and shift-left testing
• Document findings and share knowledge with the team

Requirements:

• SIP protocol knowledge (call flows, signaling)
• 3+ years QA experience (manual + automation)
• 2+ years test automation framework development
• Network troubleshooting tools (Wireshark, tcpdump, VoipMonitor)
• AWS basics and cloud platform familiarity
• Python or another programming language
• Ribbon SBC/SLB/PSX, OpenSIPs, or SIPp platforms
• Docker, Grafana, GitHub Actions
• RTP, SRTP, VOIP protocols
• MySQL, DevOps tools (Ansible, Terraform)