Firmware Systems Architect

Job Title

Firmware Systems Architect

Role Summary

Define firmware architecture, control interfaces, telemetry, and diagnostics for next-generation digital power management products used in AI, datacenter, and high-performance computing. Work at the intersection of embedded firmware, control systems, semiconductor hardware, validation, and system architecture.

This architecture-focused role partners with firmware implementation teams to produce scalable firmware frameworks, reference prototypes, and clear firmware-facing contracts across multiple product families.

Experience Level

Senior — typically requires 8+ years of experience in embedded firmware, embedded systems, or semiconductor product development focused on control-oriented firmware and digital power.

Responsibilities

Key responsibilities include defining firmware-facing architecture, collaborating across hardware and software disciplines, and producing prototypes and documentation to validate designs.

• Define firmware architecture and requirements for digital multiphase power controllers and related products.
• Design system-facing firmware interfaces for telemetry, monitoring, diagnostics, tuning, characterization, and control-loop support.
• Translate system-level needs into firmware APIs, data structures, timing expectations, and execution flows.
• Collaborate with systems, firmware, digital/analog design, verification, validation, applications, and tools teams.
• Support embedded characterization methods (signal injection, frequency-response measurement, fixed-point processing).
• Create reference implementations or early prototypes to reduce architectural risk.
• Document interface behavior, operating ranges, limits, timing requirements, and validation expectations.
• Establish reusable firmware patterns across product families while leaving production delivery to implementation teams.

Requirements

Must-have technical skills and experience; preferred items listed separately.

• 8+ years of experience in embedded firmware, embedded systems, digital power, SoC firmware, control-oriented firmware, or related semiconductor product development.
• Strong C programming experience for resource-constrained embedded systems.
• Hands-on experience with microcontrollers, embedded peripherals, interrupts, timers, register interfaces, and hardware bring-up.
• Knowledge of fixed-point math and implementation tradeoffs for control systems.
• Ability to translate system requirements into firmware APIs, data structures, execution flows, and testable contracts.
• Strong written and verbal communication skills; able to produce clear architecture documentation for multiple teams.
• Nice-to-have: Python for automation/data analysis, experience with firmware test infrastructure, familiarity with Verilog/SystemVerilog or hardware modeling, frequency-response measurement and embedded auto-tuning, experience with digital power controllers and telemetry/diagnostics.

Education Requirements

Bachelor's degree in Electrical Engineering, Computer Engineering, Computer Science, or a related technical discipline.

About the Company

Company: Renesas

Headquarters: Hitachinaka, Japan

Renesas is a global leader in embedded semiconductor solutions, providing high-quality products across automotive, industrial, infrastructure, and IoT sectors. With over 22,000 employees in more than 30 countries, the company focuses on scalable solutions that enhance user experience and drive innovation while committed to sustainability and energy efficiency.