Senior QA Engineer – VoIP/API Automation Lead (Remote)

Medium; Warszawa; Hybrid; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Remote/hybrid work option

Competitive salary

Professional growth

English classes

Training and conferences

Referral program

Good hardware

Company-supported English classes

Job summary

Net2Phone is seeking an experienced Lead QA Engineer to drive QA automation for its UCaaS platform and VoIP deployment pipelines. You will work in a SCRUM team, write detailed TestRail cases, and automate tests across API and backend services.

You will build automation for calls, integrate tests into CI, and coordinate with Jenkins deployments while communicating quality concerns and contributing to continuous improvement in a dynamic technical environment.

Qualifications

• 5+ years of total experience in QA Automation with a strong focus on Backend & API testing.
• 2+ years hands-on experience in VoIP / SIP protocol testing (call flow automation, media stream verification, WebRTC, or telecom load tools).
• Strong Java expertise (Java 11/17) and proficiency with test frameworks (JUnit5, TestNG, Gradle).
• Upper-Intermediate (B2) English level or higher (written and spoken).
• Hands-on experience with API & Microservices automation (REST, JSON, gRPC).
• Strong troubleshooting and analytical skills using network analysis tools (Wireshark, tcpdump) and Linux CLI.

Responsibilities

• Be a member of a SCRUM team with all related artefacts.
• Write test cases with detailed steps in TestRail.
• Automate new test cases, extend and maintain existing cases in different integration areas.
• Integrate Automated testing within CI for all deployment tasks.
• Take part in building automation for calling functionality.
• Solve a complex task which makes automation-as-a-tool and orchestrate different layers into one quality gateway.
• Build and execute deployments in Jenkins for all environments.
• Communicate and elevate product quality issues.

Skills

QA automation

Java

API testing

VoIP/SIP testing

English (B2)

Linux command line

Troubleshooting

Tools

JUnit5

TestNG

Gradle

Jenkins

TestRail

Wireshark

tcpdump

Docker

WireMock

Job description

Net2Phone is seeking an experienced Lead QA Engineer to drive QA automation for its UCaaS platform and VoIP deployment pipelines. You will work in a SCRUM team, write detailed TestRail cases, and automate tests across API and backend services.

You will build automation for calls, integrate tests into CI, and coordinate with Jenkins deployments while communicating quality concerns and contributing to continuous improvement in a dynamic technical environment.