Senior Firmware Engineer

Renesas Electronics America is seeking a Senior Firmware Verification Engineer to join the Infrastructure Power team. This role owns pre-silicon verification of embedded firmware used to control high-performance power management ICs for data center, AI accelerator, networking, and computing platforms. The engineer will apply a solid understanding of the firmware development process to build effective test strategies, verify ARM Cortex-M firmware in simulation-based environments, and identify firmware, RTL, and interface defects before silicon availability.  Key Responsibilities  •  Build, maintain, and enhance SystemVerilog-based simulation tests and environments that execute ARM Cortex-M firmware with the associated RTL and hardware models.  •  Verify firmware behavior across reset, boot, initialization, configuration, sequencing, telemetry, protection, fault handling, recovery, and firmware–hardware interface scenarios.  •  Analyze C and assembly firmware at source, instruction, register, memory, interrupt, and peripheral levels to diagnose functional and timing-related failures.  •  Develop directed, constrained-random, negative, stress, boundary, and error-injection tests to validate expected behavior and robustness.  •  Run regressions; triage failures; perform waveform, log, memory, and register analysis; and isolate issues to firmware, RTL, models, testbench, or tools.  •  Define and track requirements coverage, functional coverage, code coverage, and regression quality; identify gaps and drive closure.  •  Create automation using Python, Perl, or similar scripting languages for build and test execution, result checking, log parsing, failure classification, reporting, and continuous integration.  •  Collaborate closely with firmware developers, RTL designers, architects, and validation engineers to review requirements, improve observability and controllability, reproduce defects, and verify fixes.  •  Document verification plans, test procedures, coverage results, debug findings, known issues, and release-readiness assessments.  Required Qualifications  •  BS or MS in Electrical Engineering, Computer Engineering, Computer Science, or a related technical field.  •  Deep understanding of C and assembly-based firmware for ARM Cortex-M processors, including exception and interrupt handling, memory maps, startup code, registers, peripherals, and low-level debugging.  •  Strong ability to debug firmware–hardware interactions using simulation logs, waveforms, memory and register traces, and source-level analysis.  •  Experience in firmware verification, embedded firmware testing, firmware development, or pre-silicon verification.  •  Proficiency in Python, Perl, or similar languages for verification automation and regression infrastructure.  •  Strong understanding of the embedded firmware development process and how requirements, architecture, implementation, integration, test, debug, and release activities connect.  •  Proven firmware testing experience, including test planning, test-case design, negative and boundary testing, regression analysis, defect isolation, and coverage closure.  •  Familiarity with embedded interfaces such as I2C, PMBus, SPI, UART, or similar protocols.  •  Strong analytical, problem-solving, written communication, and cross-functional collaboration skills.  Preferred Qualifications  •  Experience verifying PMIC firmware, digital power management, voltage regulation, sequencing, telemetry, or protection features.  •  Hands-on experience developing, maintaining, or debugging SystemVerilog-based pre-silicon simulation environments.  •  Experience with waveform and debug tools such as SimVision, Verdi, or similar tools.  •  Working knowledge of RTL design and firmware-controlled digital subsystems.  •  Ex