Voice Network Tester

vor 2 Wochen

Council of the City of Sydney, Österreich CareCone Group Vollzeit

Voice Network Test Engineer (ALU/Nokia/Ribbon) Location: Sydney Employment type: Permanent Key Responsibilities Develop, plan, and execute test cases for voice and fixed network elements, especially those involving Ribbon / ALU / Nokia voice switch platforms (such as SBCs, media gateways, etc.). Perform both functional and non-functional testing (e.g. load/stress, interoperability, voice quality) of voice services. Use voice protocols such as SIP, RTP, H.323, and others relevant in the Ribbon / Nokia portfolio. Configure and operate test tools, analyzers, probes, test harnesses. Monitor voice quality metrics (MOS, jitter, latency, packet loss). Validate new firmware/software releases and patches. Ensure backward compatibility and regression testing. Troubleshoot issues in lab/test environments; collaborate with development, network operations, and support teams to isolate and fix defects. Document test plans, test cases, and detailed defect reports. Maintain accurate records of testing results. Automate testing where feasible. Reuse scripts, build test suites. Maintain knowledge of standards and industry best practices in voice communication, telecom networks, and voice over IP (VoIP). Qualifications & Experience Bachelor’s degree (or higher) in Electrical / Telecommunications / Computer Engineering, Computer Science, or related discipline. Experience with Ribbon / Sonus / ALU / Nokia voice platforms — SBCs, PABXs, media gateways. Strong knowledge of voice protocols (SIP, RTP, codec behavior, etc.), voice signalling and transport. Hands‑on experience with test equipment: signal/protocol analyzers, probes, test harnesses. Solid understanding of network fundamentals: LAN/WAN, QoS, jitter/latency, etc. Proven defect tracking, root‑cause analysis and debugging skills. Experience with automation of test cases is a plus (e.g. scripting, test frameworks). Excellent communication skills—able to write clear test plans and reports, and work collaboratively with cross‑functional teams. Preferred Skills Experience in lab/test environment set‑ups and hands‑on lab debugging. Familiarity with voice quality metrics and emulation of network impairments (packet loss, latency, jitter etc.). Experience with Ribbon PSX, GSC, or equivalent in the Nokia/ALU portfolio. Knowledge of customer‑facing deployments (field issues, troubleshooting live voice traffic). Exposure to continuous integration / test automation tools. Seniority level Mid‑Senior level Employment type Full‑time Job function Analyst, Engineering, and Information Technology Contact Interested candidates can apply or share updated CV on #J-18808-Ljbffr

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