QA Tester

Job Description: IoT Device Tester / QA Engineer

Location:
Delhi, Vasant Kunj

Department:
Quality Assurance / Engineering

Company Overview

IMZ Corporate Pvt Ltd is a fast-growing company specializing in IoT solutions for securing goods in transit. We collaborate with leading companies, delivering cutting-edge technology to enhance security and operational efficiency across sectors like logistics, FMCG, and government bodies.

Role Summary

We are seeking a dedicated IoT Device Tester to join our Quality Assurance team. In this role, you will be responsible for the end-to-end testing of our IoT devices and ecosystems. You will design and execute test cases that cover hardware, firmware, connectivity, cloud APIs, and mobile applications. The ideal candidate is a problem-solver who thrives in a hands-on environment and is passionate about breaking things to make them better.

Key Responsibilities

• Test Planning & Design:
• Develop, document, and maintain detailed test plans, test cases, and test scripts based on product requirements and technical specifications.
• Analyze requirements and architecture documents to identify testable conditions and potential edge cases.
• Define and set up test beds and environments that replicate real-world user scenarios.
• Hands-On Testing Execution:
• Perform
  functional testing
  on IoT devices (e.g., button presses, sensor accuracy, LED patterns).
• Conduct
  connectivity and interoperability testing
  with various networks (Wi-Fi, Bluetooth/BLE, Zigbee, Cellular, LoRaWAN), routers, and hubs.
• Execute
  performance and stress testing
  to evaluate device stability under heavy load, low battery, and poor network conditions.
• Perform
  negative testing
  to ensure the device handles errors and unexpected user input gracefully.
• Validate
  OTA (Over-The-Air) firmware update
  functionality and reliability.
• Test
  power consumption and battery life
  to verify they meet specifications.
• Collaborate with software teams to test
  mobile app (iOS/Android) and web application integration
  with the device.
• Assist with
  security testing
  (e.g., validating encryption, authentication, and data privacy).
• Automation & Tooling:
• Develop and execute automated test scripts (using Python, Bash, or other relevant languages) to improve testing efficiency.
• Work with continuous integration (CI/CD) pipelines to integrate hardware-in-the-loop testing.
• Utilize tools like Wireshark, Postman, MQTT clients, and serial monitors (e.g., PuTTY) for debugging and validation.
• Defect Management & Reporting:
• Identify, isolate, document, and track bugs through their entire lifecycle using bug tracking systems (e.g., JIRA).
• Provide clear and concise bug reports with detailed steps to reproduce, logs, and relevant data.
• Work closely with developers and hardware engineers to troubleshoot, replicate issues, and verify fixes.
• Collaboration:
• Participate actively in agile/scrum ceremonies (sprint planning, daily stand-ups, retrospectives).
• Provide clear and timely feedback on product quality and release readiness.

Required Qualifications & Skills

• Bachelor's degree in Computer Science, Electrical Engineering, or a related field, or equivalent practical experience.
• Proven experience (2+ years) in a QA role with a strong focus on testing physical hardware/embedded devices.
• Solid understanding of IoT principles, architecture, and common communication protocols (MQTT, HTTP/HTTPS, CoAP, WebSockets).
• Hands-on experience with wireless technologies such as Wi-Fi, Bluetooth/BLE, and Zigbee.
• Experience using tools for network analysis (Wireshark), API testing (Postman), and serial communication.
• Basic programming/scripting skills (e.g., Python, JavaScript) for test automation.
• Strong analytical and problem-solving skills with a keen attention to detail.
• Excellent verbal and written communication skills.

Preferred Qualifications

• Experience with test automation frameworks (e.g., Selenium, Appium, Robot Framework).
• Knowledge of security testing principles for IoT devices.
• Experience with performance and load testing tools.
• Familiarity with hardware tools like oscilloscopes, logic analyzers, or multimeters is a big plus.
• Understanding of CI/CD concepts and tools (e.g., Jenkins, GitLab CI).

What We Offer

• A competitive salary and benefits package.
• The opportunity to work on cutting-edge technology that makes a real impact.
• A collaborative and innovative work environment.
• Professional development and growth opportunities.