Senior Firmware Engineer - Embedded SW/Microcontroller/Bare-Metal Drivers

Marvell Technology • Santa Clara, CA

10d

About The Position

About Marvell Marvell’s semiconductor solutions are the essential building blocks of the data infrastructure that connects our world. Across enterprise, cloud and AI, and carrier architectures, our innovative technology is enabling new possibilities. At Marvell, you can affect the arc of individual lives, lift the trajectory of entire industries, and fuel the transformative potential of tomorrow. For those looking to make their mark on purposeful and enduring innovation, above and beyond fleeting trends, Marvell is a place to thrive, learn, and lead. Your Team, Your Impact As Generative AI continues to advance, the performance drivers for data center infrastructure are shifting from systems-on-chip (SOCs) to systems of chips. In the era of Accelerated Computing, data center bottlenecks are no longer limited to compute performance, but rather the system’s interconnect bandwidth, memory bandwidth, and memory capacity. Marvel/Celestial AI’s Photonic Fabric™ is the next-generation interconnect technology that delivers a tenfold increase in performance and energy efficiency compared to competing solutions. The Photonic Fabric™ is available to our customers in multiple technology offerings, including optical interface chiplets, optical interposers, and Optical Multi-chip Interconnect Bridges (OMIB). This allows customers to easily incorporate high bandwidth, low power, and low latency optical interfaces into their AI accelerators and GPUs. The technology is fully compatible with both protocol and physical layers, including standard 2.5D packaging processes. This seamless integration enables XPUs to utilize optical interconnects for both compute-to-compute and compute-to-memory fabrics, achieving bandwidths in the tens of terabits per second with nanosecond latencies. This innovation empowers hyperscalers to enhance the efficiency and cost-effectiveness of AI processing by optimizing the XPUs required for training and inference, while significantly reducing the TCO2 impact. To bolster customer collaborations, Celestial AI is developing a Photonic Fabric ecosystem consisting of tier-1 partnerships that include custom silicon/ASIC design, system integrators, HBM memory, assembly, and packaging suppliers. What You Can Expect We are seeking an experienced Firmware Engineer to join our team with a primary focus on communication link management. In this role, you will be responsible for designing, implementing, and maintaining firmware that manages high-speed interconnects and ensures reliable data transfer across complex hardware systems. You will be part of a team developing next generation AI/ML solutions using the Celestial AI Photonic Fabric Architecture. You will be responsible for developing production-grade firmware for Celestial AI’s photonic fabric product lineup and developing firmware APIs for resource management and optimization.

Requirements

• Bachelor’s degree with 4+ years of experience, or Master’s degree with 2+ years of experience in Computer Science, Electrical Engineering, Information Technology or a related technical field.
• At least 4 years of hands-on experience in firmware or embedded software development.
• Deep proficiency in C (required) and/or C++ (highly desired) for embedded systems.
• Demonstrated experience with microcontroller architectures (e.g., ARM Cortex-M/R/A, ESP32, RISC-V) and their peripherals. You understand the nuances of clocking, interrupts, DMA, and memory-mapped registers.
• Proven ability to debug complex hardware/firmware issues on the bench using: In-circuit debuggers (JTAG/SWD) with GDB. Oscilloscopes: Experience reading signal waveforms, verifying timing, and identifying glitches. Logic Analyzers: For decoding digital bus traffic (SPI, I2C, UART). Multimeters/Power Supplies: For basic electrical troubleshooting.
• Experience in writing bare-metal drivers and working directly with device registers.
• Familiarity with version control systems (Git preferred) and bug tracking tools.
• Strong problem-solving skills with an investigative, "get to the bottom of it" mindset.
• Excellent communication skills, both written and verbal, for collaborating with hardware, QA, and software teams.

Responsibilities

• Demonstrate best practices in software development and documentation to deliver high-quality software on tight schedules while meeting all requirements.
• Actively engage in code reviews, discussions to share knowledge, and improve code quality
• Participate in gathering technical requirements, contributing to firmware and software design specifications
• Strong understanding of digital communication fundamentals and serial communication protocols
• Provide support to both internal and external SW and HW development teams
• Provide guidance on test plans for lab characterization once design comes back from fab

Benefits

• Marvell is committed to providing exceptional, comprehensive benefits that support our employees at every stage - from internship to retirement and through life’s most important moments.
• Our offerings are built around four key pillars: financial well-being, family support, mental and physical health, and recognition.
• Highlights include an employee stock purchase plan with a 2-year look back, family support programs to help balance work and home life, robust mental health resources to prioritize emotional well-being, and a recognition and service awards to celebrate contributions and milestones.
• We look forward to sharing more with you during the interview process.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level