Job Description

Job Title: Telecom QA Engineer (Manual Testing) – Mid/Senior Level

Key Skills: SIP, Wireshark, Telecom Testing, TCP/IP, UDP, RTP, Test Case Writing.

Location: Campinas - SP

Mode:Hybrid

We at Coforge are hiring Telecom QA Engineer (Manual Testing) with the following skill set.

Key Responsibilities

• Execute manual functional, integration, regression, and interoperability testing for voice services on optical network termination equipment (ONTs).
• Validate SIP signaling flows and voice call scenarios using packet analysis tools.
• Analyze network traffic and troubleshoot issues using Wireshark and protocol traces.
• Create, maintain, and execute detailed test cases, test plans, and test reports.
• Perform end-to-end validation of voice services over IP networks.
• Work closely with developers, automation engineers, and QA teams located in Brazil and the United States.
• Identify, document, reproduce, and track defects through their complete lifecycle.
• Participate in laboratory setup, configuration, and maintenance of telecom testing environments.
• Validate network behavior involving TCP/IP, UDP, RTP, DHCP, DNS, and related protocols.
• Support verification of embedded software running on telecommunications devices.
• Contribute to continuous improvement of testing processes and quality standards.
• Collaborate with automation teams and contribute to automation initiatives when applicable.

Required Skills & Qualifications

• Experience as a Manual QA Engineer or Telecom Test Engineer.
• Strong knowledge of Session Initiation Protocol (SIP).
• Experience using Wireshark for packet capture and protocol analysis.
• Understanding of networking fundamentals including TCP/IP, UDP, and RTP.
• Experience creating and executing test cases, test plans, and defect reports.
• Knowledge of software testing methodologies and QA best practices.
• Ability to troubleshoot network and voice service issues.
• Experience working with embedded devices or hardware-based platforms.
• Upper-Intermediate or Advanced English for collaboration with international teams.

Preferred Skills:

• Linux Command Line Interface (CLI).
• Jira or similar defect management tools.
• Test Planning and Test Execution.
• Media Gateway Control Protocol (MGCP).
• Megaco/H.248.
• Telecom laboratory testing environments.
• Root cause analysis and troubleshooting.
• Test Automation using Python.
• Robot Framework.
• Asterisk / FreePBX administration and troubleshooting.
• DHCP, DNS, FTP, and TFTP server configuration.
• TR-069 protocol knowledge.
• SIPp for SIP traffic generation and validation.
• Experience with VoIP infrastructure and carrier-grade telecommunications solutions.
• Exposure to CI/CD and automated testing practices.
• Knowledge of broadband and fiber access network technologies.

Posted On: 16-06-2026

At Coforge, we hire professionals based solely on their skills and do not discriminate based on age, disability, religion, gender, sexual orientation, socioeconomic status, or nationality.