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
Must-Have
Nice to Have
Tech Stack & Tooling
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
Skills Required
- 5+ years total experience in QA Automation focused on Backend & API testing
- 2+ years hands-on VoIP / SIP protocol testing (call flow automation, media stream verification, WebRTC, telecom load tools)
- Strong Java expertise (Java 11/17) and proficiency with JUnit5, TestNG, Gradle
- Upper-Intermediate (B2) English, written and spoken
- Hands-on experience with API & Microservices automation (REST, JSON, gRPC)
- Strong troubleshooting and analytical skills with network analysis tools (Wireshark, tcpdump) and Linux command line
- Experience writing test cases in TestRail and integrating automated tests into CI/CD (Jenkins)
- Experience with load & performance testing tools (JMeter, Gatling, SIPp)
- Experience with Docker and containerized test environments
- Familiarity with mock services and stubs (e.g., WireMock)
IDT Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about IDT and has not been reviewed or approved by IDT.
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Healthcare Strength — Medical, dental, and vision coverage are included for full‑time employees, with published transparency files indicating employer‑sponsored health plans. This establishes a conventional benefits foundation across major coverage areas.
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Leave & Time Off Breadth — Paid vacation and sick time are characterized as generous, with illustrations of multi‑week vacation and defined sick‑leave allotments that can vary by team and tenure. This breadth provides a solid baseline for time away from work.
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Wellbeing & Lifestyle Benefits — Office amenities such as an on‑site gym, recreation spaces, free breakfast and coffee, and flexible work arrangements are highlighted. These wellbeing‑oriented perks augment the core package for in‑office and hybrid roles.
IDT Insights
What We Do
We know that you’ll have looked at quite a few company pages but IDT is different. We want people who want to make a big difference to our company with big ambitions. We’re a truly global team, with 1300 people working across all continents, apart from (at the moment!) Antarctica. But we are proud that despite our size, we encourage and support any in-house entrepreneurs to develop their ideas into business action. Our exciting growth plans make it a great time to join us. Our people are the reason for IDT’s passion for success. The IDT family is made up of people of all backgrounds, expertise, and interests, all with a relentless team spirit. We need people who share both our commitment to success and excitement about our journey. You won’t ever be bored or have to wonder how to fill your time. You’ll find the work challenging but you’ll get the support of a great team to help you beat those challenges. You will also be expected to support others as well as work hard, work well and work with a smile. If you want a join a company that will help you become your brilliant best and achieve amazing results, then you want to join IDT.
