Specialist Software QA&Testing Engineer

Key Responsibilities

Software & Firmware Testing

• Design comprehensive test strategies and master test plans for embedded firmware, control systems, and IoT modules.

• Develop, review, and execute detailed test plans, test cases, and automated test scripts.

• Perform advanced functional, regression, integration, system, stress, and performance testing of HVAC control logic and IoT connectivity features.

• Validate communication interfaces and protocols (UART, SPI, I²C, CAN, Modbus, MQTT, HTTP/REST, BLE/Wi-Fi).

• Define test coverage metrics and ensure traceability between requirements and test cases.

Automation Testing & CI/CD

• Architect and implement automated test frameworks for firmware, communication protocols, and system-level validation.

• Develop automated test scripts using scripting languages (e.g., Python, Shell, or similar) for hardware-in-the-loop (HIL) and integration testing.

• Integrate automated tests into CI/CD pipelines to enable continuous validation of firmware builds.

• Establish automated regression testing environments for embedded devices and IoT connectivity validation.

• Analyze automated test results, maintain test infrastructure, and continuously improve automation coverage and reliability.

Quality Assurance Leadership

• Drive firmware quality through systematic validation processes, defect lifecycle management, and root-cause analysis.

• Define QA standards, best practices, and quality metrics across projects.

• Ensure compliance with global quality, safety, and regulatory standards relevant to HVAC and IoT products.

• Mentor junior QA engineers and promote quality-first culture within cross-functional teams.

Debugging & Issue Investigation

• Lead technical investigations using logic analyzers, protocol analyzers, debuggers, oscilloscopes, and measurement tools.

• Perform deep analysis of firmware logs, communication traces, and system behavior to identify root causes.

• Collaborate with embedded software, hardware, cloud, production, and service teams to resolve complex cross-domain issues.

Processes & Documentation

• Prepare high-quality documentation including test strategies, validation reports, defect analysis summaries, and release readiness assessments.

• Continuously improve QA methodologies, risk-based testing approaches, and test efficiency.

Cross-Team & System Collaboration

• Work closely with mobile and cloud teams on API validation, data model consistency, and end-to-end communication testing.

• Participate in system integration testing, field trials, certification testing, and post-launch issue analysis.

• Support production validation and failure analysis for field-returned products.

Qualifications & Experience

Required

• Bachelor’s degree in Computer Engineering, Electrical Engineering, Computer Science, or related field.

• 5+ years of experience in software testing or QA, with strong focus on embedded systems or IoT devices.

• Proven experience designing and implementing automated test frameworks for embedded systems.

• Strong understanding of embedded firmware behaviors, microcontroller architectures, and real-time constraints.

• Hands-on experience testing communication interfaces and protocols (UART, SPI, I²C, CAN, Modbus, MQTT, HTTP/REST).

• Experience integrating automated tests into CI/CD pipelines (e.g., Jenkins, GitLab CI, or similar).

• Strong debugging and analytical skills using hardware and software diagnostic tools.

• Experience with defect management and test management tools (e.g., JIRA, TestRail, Git).

• Good written and spoken English for cross-functional and international collaboration.

Preferred

• Experience with RTOS-based systems (e.g., FreeRTOS).

• Experience with Hardware-in-the-Loop (HIL) testing environments.

• Knowledge of embedded Linux environments and device drivers.

• Familiarity with scripting or programming languages (Python, C/C++) for automation and debugging.

• Experience in HVAC systems, smart appliances, or industrial IoT products.

Carrier is An Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age or any other federally protected class.

Job Applicant's Privacy Notice:

Click on this link to read the Job Applicant's Privacy Notice