MQA Engineer (UniFi Switching)

Location: Taiwan

Department: 400-Research and Development

Responsibilities

Protocol & Feature Validation

• Manually validate core L2/L3 switching features: VLANs, STP/RSTP, LACP/port-channels, LLDP, IGMP/MLD snooping, QoS, ACLs, static/dynamic routing
• Validate PoE behavior (PoE/PoE+/PoE++) across port classes, power budgets, and mixed-load scenarios
• Test switch management interfaces — CLI, SSH, SNMP, REST API, and UniFi Network application/controller integration
• Perform interoperability testing across multi-vendor topologies and mixed firmware versions
• Validate clustering, redundancy, and failover behavior under various failure conditions

Firmware & System Testing

• Perform long-duration soak/stability testing to catch memory leaks, port flaps, and firmware degradation over time
• Test system behavior under scale conditions (high MAC/ARP table size, VLAN scale, heavy traffic load)
• Validate authentication, authorization, and access control (802.1X, RADIUS, management access)

Debugging & Root Cause Analysis

• Debug using switch logs, CLI diagnostics, packet captures, and port/interface statistics
• Distinguish true firmware/protocol regressions from environment or test setup issues
• Reproduce field-reported issues and validate that fixes fully resolve reported behavior

Collaboration & Process Improvement

• Partner cross-functionally with firmware engineers and PMs to shape quality bars and go/no-go release decisions
• Document bugs clearly with reproducible steps, supporting logs, and impact assessment
• Continuously improve test plans, protocol coverage, and QA processes with AI-assisted workflows

 

Qualifications

Protocol & Networking Knowledge

• Deep, hands-on understanding of L2/L3 protocols: VLANs, STP/RSTP, LACP, LLDP, IGMP/MLD, QoS, ACLs, static/dynamic routing
• Solid grasp of PoE standards and power negotiation behavior
• Strong understanding of TCP/IP fundamentals: DHCP, DNS, NAT, VPN

Process & Mindset

• Solid grasp of software testing methodologies, issue reporting, and test case management
• Strong ownership mindset — able to independently build out test coverage for new features from spec
• Organized and detail-oriented, with the ability to manage multiple testing tasks in parallel
• Passion for quality, networking, and continuous learning in a fast-evolving environment
• Comfortable using AI to speed up log/capture analysis and the ability to critically evaluate AI-generated output for accuracy before applying it to test work

 

Preferred

• CCNA or equivalent networking certification
• RTOS-based switch testing experience
• Familiarity with traffic generation tools (iPerf, Ixia, Spirent, or similar)
• Familiarity with Datacenter testing 
• Hands-on experience testing ProAV-over-IP technologies such as Dante, ST 2110, NDI, or SDVoE
• Contributions to internal test frameworks, tooling, or test documentation improvements