QA and Device Specialist

duvari group; St. Louis (MO); On-site; USD 75,000 - 110,000; Full time

Job summary

duvari group is seeking a hands-on QA & Device Specialist to test next-generation connected consumer devices. The role is onsite in St. Louis, MO, with a contract-to-hire path based on performance.

You will work on hardware, firmware, BLE, and embedded systems, ensuring quality before release. Responsibilities include testing hardware and IoT devices, flashing firmware on embedded systems, validating OTA updates, and writing test scripts to boost QA efficiency.

Qualifications

• 3+ years of hardware and firmware QA testing experience.
• Experience flashing firmware on embedded devices.
• Hands-on experience with BLE testing tools (nRF Connect or Wireshark).
• Scripting experience with Python, JavaScript, TypeScript, or Shell.
• Strong troubleshooting skills and attention to detail.
• Able to work onsite in the St. Louis metro area.

Responsibilities

• Perform hands-on testing of connected hardware and IoT devices.
• Flash and validate firmware builds on embedded devices.
• Test Bluetooth Low Energy (BLE) connectivity, device performance, and mobile app integrations.
• Verify firmware updates, including OTA (Over-the-Air) updates.
• Write and maintain test scripts to improve QA efficiency.
• Identify, document, and communicate defects with engineering teams.
• Support production and warehouse technology, including scanners, labeling systems, and fulfillment tools.

Skills

Hardware QA testing

Firmware testing

BLE testing

Python

JavaScript

TypeScript

Shell

Tools

nRF Connect

Wireshark

Job description

QA & Device Specialist (Hardware/Firmware Testing)

St. Louis, MO (Onsite)

Looking for a role with long-term potential? Start as a contract consultant with the opportunity to convert to a full-time employee based on performance.

We're looking for a hands-on QA & Device Specialist to test next-generation connected consumer devices. If you enjoy working with hardware, firmware, Bluetooth devices, and embedded systems—and you're the person who catches issues everyone else misses,we want to hear from you.

Please note: This is an onsite role in the St. Louis area.

What You'll Do

• Perform hands-on testing of connected hardware and IoT devices.
• Flash and validate firmware builds on embedded devices.
• Test Bluetooth Low Energy (BLE) connectivity, device performance, and mobile app integrations.
• Verify firmware updates, including OTA (Over-the-Air) updates.
• Write and maintain test scripts to improve QA efficiency.
• Identify, document, and communicate defects with engineering teams.
• Support production and warehouse technology, including scanners, labeling systems, and fulfillment tools.

What We're Looking For

Required Qualifications

• 3+ years of hardware and firmware QA testing experience
• Experience flashing firmware on embedded devices
• Hands-on experience with Bluetooth Low Energy (BLE) testing tools (such as nRF Connect or Wireshark)
• Scripting experience with Python, JavaScript, TypeScript, or Shell
• Strong troubleshooting skills and exceptional attention to detail
• Able to work onsite in the St. Louis metro area

Nice to Have

• Experience testing IoT or smart consumer devices
• OTA firmware validation experience
• Familiarity with embedded platforms such as ESP32, Nordic, or STM32
• Experience supporting manufacturing or production testing environments

Why You'll Love This Opportunity

• Contract-to-hire with the potential to join the team full-time
• Work with cutting-edge connected hardware and embedded technology
• Play a critical role in ensuring product quality before release
• Join a collaborative engineering team where your work has a direct impact

If you're passionate about hardware, firmware, and finding the bugs others miss, we'd love to hear from you.