Network qa engineer – l2/l3 testing

QA Engineer – Network Testing

Experience: 3+ Years

Role: QA Engineer – Manual / Network Testing

About the Role

We are looking for a QA Engineer with strong manual testing experience and good networking fundamentals . The ideal candidate should understand the OSI and TCP/IP models and have hands-on experience testing network-based applications, routers, switches, VLANs, and L2/L3 networking features.

You will work closely with Development, Product, and Network Engineering teams to validate features, analyze network behavior, identify defects, and ensure product quality within an Agile environment .

Key Responsibilities

Analyze requirements and create test plans, test cases, and test scenarios for network-based applications and features. Perform manual functional, regression, integration, sanity, and system testing . Test network functionality involving routers, switches, VLANs, L2 switching, and L3 routing . Apply OSI and TCP/IP model knowledge to troubleshoot and isolate issues across network layers. Validate VLAN segmentation, L2 switching, L3 routing, and network traffic behavior . Test and validate IPv4/IPv6 functionality and network connectivity. Analyze network traffic and troubleshoot issues using tools such as Ping, Traceroute, Wireshark/TCPDump , where applicable. Log, track, and manage defects using Jira, Zoho, or equivalent defect-tracking tools . Provide clear defect details including reproduction steps, severity, impact, and supporting evidence . Participate in Agile ceremonies , including sprint planning, daily stand-ups, sprint reviews, and retrospectives. Collaborate with developers and product owners to clarify requirements and acceptance criteria. Maintain test documentation, traceability matrices, test execution reports, and defect reports . Communicate testing progress, defect status, quality risks, and release readiness to stakeholders.

Required Skills

3+ years of experience in QA / Software Testing . Strong hands-on experience in Manual Testing . Good understanding of Functional, Regression, Integration, Sanity, and System Testing . Strong knowledge of OSI and TCP/IP networking models . Hands-on knowledge of: Routers & Switches VLAN / VLAN Segmentation L2 Switching L3 Routing IPv4 & IPv6 TCP/IP Network Traffic Analysis / Behavior Validation Experience with Test Cases, Test Plans, Test Scenarios, and Test Execution . Experience with Jira, Zoho, or similar defect-tracking tools . Good debugging, analytical, and problem-solving skills. Experience working in an Agile/Scrum environment .

Good to Have

Basic Python scripting for test automation or network validation. Exposure to Selenium or other automation frameworks. Experience with firewall rule validation and security policy testing . Knowledge of NAT, DHCP, DNS, ACLs, VPN, or other networking concepts . Exposure to Wireshark, TCPDump, Ping, Traceroute , or similar network troubleshooting tools. Willingness to upskill in network automation and Python-based testing .