Voice Network Test Engineer

2 days ago

Sydney, New South Wales, Australia CareCone Group Full time $80,000 - $120,000 per year

Role:
Voice Network Test Engineer

Location:
Sydney, NSW

Employment Type:
Permanent

Must Have:

Full working rights. No sponsorship available.

Role Summary:

As a Voice Tester, you will be responsible for validating, verifying, and ensuring the quality of voice services and network elements in Ribbon / ALU / Nokia voice environments. You will design and execute test cases, analyse defects, work closely with network engineers, and contribute to continuous improvement in voice service performance.

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.

Interested consultants can share their updated resume at

or call

  • Network Test Engineer

    6 days ago

    Sydney, New South Wales, Australia Ampstek Full time $90,000 - $120,000 per year

    Hi All,Greetings from Ampstek,Actively Hiring for Network Test Engineer / Device TesterRole: Network Test Engineer / Device TesterLocation: SydneyDuration: 6 Months Contract + ExtensionJob DescriptionDevice Network Logging Ability to configure and capture handset logs Qualcomm QXDM, MTK, Samsung, Apple logging tools, etc. for emergency call...

  • Junior Voice Engineer

    6 days ago

    Sydney, New South Wales, Australia Macquarie Group Full time $80,000 - $120,000 per year

    Join our Global Voice Services team which supports enterprise-wide unified communications infrastructure, and work in a multi-talented and diverse team across geographical locations. You will learn new technologies and help manage voice solutions and systems to meet business, service and lifecycle requirements.At Macquarie, our advantage is bringing together...

  • Test Lead

    1 week ago

    Sydney, New South Wales, Australia Planit Test Management Solutions Full time $120,000 - $180,000 per year

    Planit are world leaders in application testing and quality engineering. We provide solutions that support organisations to deliver high quality systems, applications, and IT architecture. Planit is now a proud NRI company and part of a global movement to deliver a sustainable and secure future through better Information Technology exchanges. Our team offer...

  • Network Engineer

    2 weeks ago

    Sydney, New South Wales, Australia Experis AU Full time $120,000 - $180,000 per year

    Role: Network Engineer - CienaLocation: SydneyAbout the RoleWe are looking for a Network Engineer to help with network upgrades and improvements. You will work on network solutions, support sales and product teams, and help customers with their networking needs.Key ResponsibilitiesPerform complex upgrades and changes to network equipment without disrupting...

  • Senior Voice Biometrics Engineer

    11 hours ago

    Sydney, New South Wales, Australia Nityo Infotech Full time $120,000 - $140,000 per year

    Exciting Contract Opportunity – Senior Voice Biometrics Engineer / IVR & Conversational AI DeveloperLocation: Flexible, anywhere in AustraliaEnd Client: OptusDuration: 6–8 months (contract)Rate: As per marketWe are looking for experienced and security-cleared professionals to join the Customer Communication Management (CCM) Project. This role focuses on...

  • Network Quality Assurance Engineer

    9 hours ago

    Sydney, New South Wales, Australia Megaport Full time $120,000 - $180,000 per year

    About MegaportWe're not your typical tech company – and we don't want to be. Megaport is the global leader in Network as a Service (NaaS), and has transformed the way businesses connect to the cloud, data centers, and each other. We're publicly listed on the Australian Stock Exchange and partnered with the biggest names in tech like Amazon, Microsoft,...

  • Network Engineer

    2 weeks ago

    Sydney, New South Wales, Australia Experis Australia Full time $120,000 - $140,000 per year

    Role: Network Engineer - CienaLocation: SydneyAbout the RoleWe are looking for a Network Engineer to help with network upgrades and improvements. You will work on network solutions, support sales and product teams, and help customers with their networking needs.Key ResponsibilitiesPerform complex upgrades and changes to network equipment without disrupting...

  • Network Engineer

    2 days ago

    Sydney, New South Wales, Australia Centorrino Technologies Full time $90,000 - $120,000 per year

    Join Centorrino Technologies: Innovate, Grow, and Thrive with UsAt Centorrino Technologies (CT), we're more than just tech—we're a community that goes beyond expectations. We've been recognised as a Great Place to Work in and one of the Best Places to Work Medium & Large Size in Australia for 2025, with an outstanding eNPS score of 68. And we're not...

  • Network Engineer

    14 hours ago

    Sydney, New South Wales, Australia Centorrino Technologies Full time $80,000 - $120,000 per year

    Join Centorrino Technologies: Innovate, Grow, and Thrive with UsAt Centorrino Technologies (CT), we're more than just tech—we're a community that goes beyond expectations. We've been recognised as a Great Place to Work in and one of the Best Places to Work Medium & Large Size in Australia for 2025, with an outstanding eNPS score of 68. And we're not...

  • Network Engineer

    1 week ago

    Sydney, New South Wales, Australia PeopleLogic Full time $100,000 - $150,000 per year

    Hi Connections,We have opening for Network Engineer ,kindly share me your updated resume toRole: Network EngineerLocation: SydneyMust Have:· Minimum 5+ years of hands-on experience in network implementationHave proven knowledge on the below skills:· Cisco UCS· Cisco ACI· Scripting - Python· Proven experience working in a mission critical environment...