QA Engineer - VoIP / SIP / SBC Testing

• *Description**
• --------------

• *QA Engineer \- VoIP / SBC / Gateway Testing**

Sangoma is looking for a QA Engineer with hands\-on experience in VoIP and telecom testing to validate our NSC/SBC and Vega Gateway solutions. The ideal candidate will be responsible for functional, regression, interoperability, system, and performance testing while ensuring the quality and reliability of our telecom products.

• *Key Responsibilities**

• Design, develop, and execute test plans, test cases, and test scenarios.
• Validate SIP/ISDN signaling, VoIP call flows, media handling, SBC, and gateway features.
• Perform functional, regression, interoperability, end\-to\-end, system, and release testing.
• Analyze SIP traces, packet captures, and system logs to identify and troubleshoot issues.
• Validate SIP trunking, PSTN connectivity, codec negotiation, DTMF, T.38 Fax, and call routing.
• Collaborate with Development, Product Management, and Support teams to investigate, reproduce, and verify reported defects.
• Ensure product quality throughout the software development lifecycle.

• *Requirements**
• ---------------

• *Must\-Have Skills**

• 3\+ years of QA experience in Telecom, VoIP, Networking, or Unified Communications.
• Strong understanding of SIP and ISDN call flows and signaling.
• Solid networking fundamentals, including TCP/IP, UDP, NAT, VLAN, DNS, and DHCP.
• Experience testing SIP Trunks, Session Border Controllers (SBCs), Media Gateways, or IP\-PBX systems.
• Experience creating and executing manual functional and regression test cases.
• Hands\-on experience with Linux OS, Jira, and debugging tools such as Wireshark and tcpdump.
• Strong analytical and troubleshooting skills.

• *Preferred Skills**

• Experience with Sangoma NSC/SBC and Vega Gateway products.
• Hands\-on experience with SIPp and SIP phones.
• Knowledge of telecom technologies, including SIP Trunking, PSTN, PRI, FXO/FXS, and T.38 Fax.
• Experience working in cloud or virtual telecom environments.
• Basic scripting or test automation using Python or Shell scripting is an advantage.

• *Qualifications**

• Bachelor's degree in Computer Science, Electronics, Telecommunications, Information Technology, or a related field (preferred).
• 3\-4\+ years of experience in QA for VoIP, Telecom, Networking, or Unified Communications environments.

• *Benefits**
• -----------

At Sangoma, we value our employees and provide benefits designed to support their professional growth, financial security, and overall well\-being.

• **Health \& Medical Coverage:** Medical insurance coverage to support employees and provide access to healthcare benefits.
• **Work\-Life Balance:** Flexible work schedule that enables employees to maintain a healthy balance between professional and personal commitments.
• **Financial Security:** Provident Fund (PF) benefits and Gratuity benefits in accordance with applicable statutory requirements.
• **Career Growth Opportunities:** Opportunity to work on innovative telecom and communication technologies while collaborating with experienced engineering and product teams.
• **Learning \& Development:** Exposure to advanced VoIP, SIP, SBC, and gateway technologies with opportunities to enhance technical expertise.
• **Collaborative Work Environment:** Work with cross\-functional teams including Engineering, Product Management, and Support in a global technology organization.