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Open nowPosted 61 days ago

Lead QA Engineer with VoIP/SIP stack

idt107 open roles

Where
Minsk
Work mode
Hybrid
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Your applicationOpen nowLead QA Engineer with VoIP/SIP stackidt · Minsk

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This job: posted 61 days ago

The posting

About the Role

We are looking for an experienced Lead QA Engineer with strong VoIP and SIP stack expertise to join our Net2Phone UCaaS platform team. This role focuses primarily on manual testing, microservices/API validation, requirements testing alongside Product Owners, and establishing team-wide release guidelines. While the core day-to-day focus is manual execution and release orchestration, exposure to performance testing tools, build management, or Java test automation is a plus.

What You Will Do

  • Requirements Analysis & PO Collaboration: Partner closely with Product Owners to build robust requirement lists, refine acceptance criteria, and execute early-stage requirements testing before development begins.
  • Release Governance & Guidelines: Help design, document, and standardize end-to-end release processes, quality gates, and deployment guidelines for the engineering team.
  • Lead Manual & Integration Testing: Plan and execute rigorous manual test cycles across microservices and REST/gRPC APIs to validate complex integration scenarios.
  • Manage Release Operations: Orchestrate deployment tasks, build triggers, and post-deployment verifications in Jenkins across testing and staging environments.
  • Test Case Architecture: Write, organize, and maintain detailed, step-by-step manual test cases and execution runs in Allure TestOps.
  • VoIP & SIP Validation: Conduct functional testing on real-call scenarios, media flows, and SIP protocol behavior under active network conditions.
  • Agile Quality Gateway: Participate actively in SCRUM ceremonies, manage defect lifecycles in Jira, and serve as the final quality sign-off for release candidates.

What we expect

  • 6+ Years in QA Engineering: Deep focus on Backend and API/Microservices testing (REST, JSON, gRPC).
  • 2+ Years in VoIP / SIP Protocol Testing: Call flow verification, media stream validation, WebRTC, or telecom load tools.
  • SIP Tracing & System Diagnostics: Strong command of Linux CLI and SIP tracing instruments (e.g., Hepic, CP Tools, tcpdump).
  • English Proficiency: Upper-Intermediate (B2) or higher (written and spoken).
  • Load & Performance Testing: Hands-on experience with load and performance testing tools (JMeter, Gatling, SIPp).
  • Build & Release Testing: Direct experience validating, testing, and promoting software builds through release cycles.
  • Programming & Automation Background: Experience or familiarity with Java (11/17) and testing frameworks (JUnit5, TestNG, Gradle) to read code, assist with debugging, or contribute to automation efforts.
  • Domain & Protocols: VoIP, SIP stack, WebRTC, REST APIs, gRPC, Microservices
  • SIP Tracing & Diagnostics: Hepic, CP Tools, tcpdump, Linux CLI
  • CI/CD & Deployments: Jenkins
  • Test & Defect Management: Allure TestOps, Jira
  • Performance & Load (Bonus): JMeter, Gatling, SIPp
  • Languages & Frameworks (Bonus): Java 11/17, JUnit5, TestNG, Gradle
  • Methodology & Process: Agile / SCRUM, Requirements Testing, Release Governance

We offer you:

  • Remote b2b or hybrid (Belarus-Moldova) work opportunity!
  • Stable job with long-term growth perspective.
  • Competitive salary with annual performance review.
  • Really good hardware.
  • An exciting and challenging job with talented people around.
  • Continuous learning and career growth opportunities.
  • Compensation for professional training, seminars, and conferences.
  • Referral program – get rewarded for helping us grow the team with talented people.
  • Company-supported English classes to enhance your professional growth.
  • More perks for the Minsk and Chisinau office employees.

A few words about us:

IDT Corporation is a global communications company founded in 1990 and headquartered in Newark, New Jersey. We are industry leaders in prepaid communication and payment services and one of the largest international voice carriers. We are listed on the NYSE, employ over 1800 people across 20 countries, and have over $1.5 billion in revenues.

We are not ”another big IT corporation”- we encourage and support in-house entrepreneurs in developing their ideas into business actions.

Net2Phone is a rapidly growing global provider of unified cloud communications solutions. It was named ‘VoIP Supplier of the Year’ by the Telecom Consulting Group in 2018. Its cloud communication solution provides an integrated communications suite featuring powerful

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