Product Testing Engineer

Role:Product Testing Engineer

Location:Portugal, Porto

Type of contract:Permanent, full-time

Carrier is the leading worldwide provider of heating, ventilation, and air conditioning (HVAC), refrigeration, fire, security, and cold chain solutions. We invented the modernair conditioning, and our team of pioneers and innovators have a long history of developing new technologies.

Addvolt, now part of Carrier, global leader in intelligent climate and energy solutions, delivers advanced electrification technology, integrated power management and power electronics capabilitiesfor transport refrigeration and auxiliary systems.Driving innovation in the electrification and decarbonization of onboard systems for refrigerated trailers, trucks, vansand containers, Addvoltempowers fleets to avoid fuel usage, reduce major emissions and operateefficiently at a remarkably low noise level. By combining Addvolt’sinnovative power solutions with Carrier Transicold’s expertisein transport refrigeration, we are enhancing the value we deliver to fleets, original equipment manufacturersand logisticsoperators worldwide. Together with Carrier, we are accelerating the transition to a more sustainable, efficientand intelligent cold chain.

Purpose of the Role

The Product Testing Engineer plays a crucial role in ensuring product quality, functionality, and reliability before any project, feature, or firmware release reaches serial production.

This role exists to:

• Validate and test projects, firmware releases, and new product features
• Ensure test coverage meets the full project scope
• Identify, document, and report edge cases and unexpected behaviors
• Improve overall product quality before customer delivery
• Develop and maintain advanced validation setups that support both the Product Testing team and other engineering teams
• Accelerate testing processes while ensuring accuracy and realism by emulating real-world product usage

The ultimate mission is to enhance product robustness, reduce failures in the field, and support continuous improvement across the engineering organization.

Key Responsibilities

• Execute comprehensive validation and characterization tests for products, projects, firmware releases, and new features
• Ensure all project releases meet high quality standards and follow validation criteria
• Improve existing tests and create new test procedures to increase efficiency and depth
• Design and implement validation setups and testing equipment to support automated and manual testing
• Automate repetitive testing tasks to increase speed, consistency, and accuracy
• Collaborate with development and production engineering teams to ensure testing alignment and address discovered issues
• Characterize product performance, analyze test results, and report findings clearly
• Support validation at the production line when required (automation, test fixtures, data analysis, etc.)
• Document test results, defects, edge cases, and improvement opportunities
• Contribute to continuous improvement of processes, tooling, and testing methodologies

Required Skills & Qualifications

• Bachelor’s degree in Electrical Engineering or a closely related field
• Strong understanding of electronics, circuits, debugging, and measurement tools (oscilloscope, multimeter, power analyzers, etc.)
• Ability to design and execute tests with high rigor and attention to detail
• Analytical mindset with strong problem solving capabilities
• Good understanding of firmware behavior, embedded systems, and failure modes
• Ability to work both independently and collaboratively within engineering teams
• Good documentation and communication skills
• Focus on quality, reliability, and continuous improvement

Nice to Have Skills

(Not mandatory but highly beneficial)

• PCB design experience (Altium, KiCad, or similar)
• Experience with automated test setups, scripting, or test automation frameworks
• Knowledge of microcontrollers, communication protocols (UART, I²C, SPI, CAN, BLE, etc.)
• Experience with product validation methodologies (DFT, DFMEA, reliability testing, HALT/HASS)
• Familiarity with production testing or industrial test equipment
• Experience with data analysis (Python, MATLAB, or similar tools)

Pay Range