LFUS) is a diversified industrial technology manufacturing company shaping solutions for the safe and efficient transfer of electrical energy. Headquartered in Chicago, Illinois, USA, we serve customers across industrial, transportation, and electronics markets worldwide. With approximately 16,000 employees we design and manufacture innovative technologies that support electrification, energy efficiency, and advanced automation.

Our general reach is matched by a culture that empowers innovation and long-term growth. As a Functional Test Engineer (Experience in Debug), you will play a critical role in ensuring our products meet all architectural specifications and functional requirements. You will be responsible for creating validation environments, executing complex system-level test plans, and performing deep root-cause analysis on failures across hardware and software domains.

You will work closely with design, architecture, firmware, and software teams to isolate defects, validate fixes, and ensure high-quality products are delivered to market.About Your Job:Executes functional validation plans and test suites at system and subsystem levels under a variety of operating conditions.Acts as the first line of defense for system failures by isolating, reproducing, and debugging complex functional, performance, and power-related issues.Performs deep-dive root cause analysis to determine whether failures originate from hardware, software, firmware, or test environment issues.Develops and maintains automation scripts and tools (Python, LabView, etc.) to streamline test execution, data collection,



and CI flows.Collaborates cross-functionally with Hardware/ASIC Design, Firmware, Architecture, and Software teams to communicate findings, propose workarounds, and verify fixes.Documents debug methodologies, maintains detailed bug tracking records, and provides regular status updates to project stakeholders.Execute and triage complex system-level validation scenarios, including performance, power, and functional coverage.Drive ownership of failure analysis from symptom to resolution, identifying cross-domain interactions.Utilize lab equipment (oscilloscopes, logic analyzers, protocol analyzers, JTAG, PLC, DAC cards) and software debuggers (GDB, logging, tracing tools) as required.Partner closely with engineering teams to accelerate issue resolution and ensure design robustness.Maintain clear, structured documentation of bugs, test coverage, and debug processes using Jira, Git, or similar systems.About You:10+ years of experience in system validation, functional testing, ASIC/SoC debug, or related engineering roles.Proficiency in scripting and automation languages such as Python, LabView, or Ladder Logic.Working knowledge of C/C++ for firmware or driver-level debugging.Experience with version control and bug tracking tools (Git, Jira, Bugzilla, or equivalent).Bachelor's or Master's degree in Electrical Engineering, Computer Engineering, Computer Science, or a related field (or equivalent experience).Experience working in highly cross-functional, global engineering teams.We offer competitive compensation and benefits, performance-based incentives, flexible work arrangements, and development opportunities.Full time

📌 Hardware Test Engineer (Cudillero)
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📍 Cudillero