Middle/Senior Manual QA Engineer with Mandarin Chinese

Akvelon • Bellevue, WA

6d • Onsite

About The Position

We are looking for a Middle / Senior Manual QA Engineer - IoT / Mandarin Chinese to validate an IoT ecosystem across physical devices, embedded firmware, communication protocols, backend services, and web/mobile applications. The role combines end-on-end quality ownership with onsite work at the client campus and communication with the China-based firmware team.

Requirements

• Fluent or native Mandarin Chinese and professional working English
• Strong Manual QA experience with complex software and hardware systems
• Hands-on experience testing IoT, embedded, smart-home, or building-automation solutions
• Experience with MQTT and MQTT debugging tools such as MQTTX
• Understanding of Protocol Buffers, Modbus, RS485, REST APIs, and backend integration testing
• Practical TCP/IP, Ethernet, Wi-Fi, DHCP, DNS/mDNS, and connectivity-troubleshooting knowledge
• Experience testing physical hardware and embedded firmware
• Ability to reproduce complex issues, collect logs, and produce clear defect and test documentation

Nice To Haves

• Experience with commercial building automation systems
• Experience testing lighting controllers, sensors, gateways, or similar embedded devices
• Experience with OTA or firmware-upgrade testing
• Experience with Linux, Wireshark, serial diagnostic tools, or IoT test automation

Responsibilities

• Perform hands-on functional and integration testing of physical IoT devices
• Validate end-to-end workflows from device and firmware through protocols, backend APIs, and web/mobile UI
• Install, configure, maintain, and troubleshoot devices and test environments at the client campus
• Test MQTT, ProtoBuf, Modbus, RS485, network connectivity, firmware upgrades, and recovery scenarios
• Investigate defects across hardware, firmware, network, backend, protocol, and UI layers
• Clarify technical information between Mandarin- and English-speaking engineering teams

Benefits

• Vacation and sick leave
• Official state holidays
• Professional growth through challenging projects and company-supported skills development
• Flexible working schedule: 8 hours per day, 40 hours per week
• Personal Career Development Plan
• Employee support program: Discount, Care, Heals, and Legal support
• Paid external training, conferences, and professional certifications aligned with business goals
• Internal workshops and seminars

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed