Legrand
Website:
legrandgroup.com
Job details:
Job Description
- Develop, execute, and maintain test plans, test cases, and test reports for Linux and IoT products.
- Perform functional, integration, regression, interoperability, and system-level testing.
- Validate communication protocols such as MQTT, TCP/IP, HTTP/HTTPS, Zigbee, Matter, Thread, BLE, and Wi-Fi.
- Hands on experience in Python programming and Katalon or similar tools .
- Hands-on experience in virtual device simulation, hardware emulation, and software-based testing environments to validate embedded firmware and IoT device functionality prior to hardware availability.
- Analyze network traffic and protocol behavior using tools such as Wireshark and packet sniffers.
- Validate device commissioning, provisioning, OTA firmware updates, and cloud connectivity.
- Perform end-to-end validation of device, gateway, cloud, and mobile application interactions.
- Develop Shell/Bash scripts for test automation, log collection, and validation activities.
- Investigate defects, perform root cause analysis, and work closely with development teams for issue resolution.
- Validate security features including authentication, encryption, certificate management, and secure communication.
- Participate in certification and compliance testing activities.
- Maintain test environments, automation frameworks, and validation setups.
Required Skills
- Experience in testing and validation of IoT products.
- Experience in writing Python scripts.
- Experience in Katalon or similar tools.
- Strong understanding of networking concepts and protocols (TCP/IP, UDP, DHCP, DNS, TLS/SSL).
- Experience using Wireshark, tcpdump, and other protocol analysis tools.
- Understanding of IoT communication protocols such as MQTT, Zigbee, Matter, Thread, BLE, and Wi-Fi.
- Experience in log analysis, troubleshooting, and root cause investigation.
- Knowledge of test methodologies including functional, regression, integration, and system testing.
- Familiarity with defect tracking tools such as Jira or Azure DevOps.
- Experience with Git and test management tools.
Preferred Skills
- Experience in Smart Home, Building Automation, Energy Management, or Industrial IoT domains.
- Experience validating Zigbee, Matter, Thread, BLE, or Wi‑Fi enabled devices(Any one or two)
- Good understanding of Linux systems and architecture .
- Strong Linux command-line proficiency and Shell Scripting (Bash/Sh).
- Knowledge of Python or Shell scripting for test automation.
- Experience with OTA validation, device onboarding, and commissioning workflows.
- Understanding of cloud-based IoT platforms and device management solutions.
- Experience with CI/CD pipelines and automated test execution.
- Familiarity with certification testing (Wi-Fi Alliance, Zigbee, Matter, Bluetooth SIG, etc.).
- Knowledge of security concepts including TLS, certificates, secure boot, and encryption mechanisms.
Responsibilities
Testing and validation of IoT products.
Writing Python scripts.
Qualifications
Bachelor's or Master's degree in Electronics, Computer Science, Embedded Systems, or a related field.
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