Senior SoC Systems Software Engineer, Annapurna Labs Machine Learning Accelerators, AWS

Overview

AWS designs custom SoCs (System on Chips) that power the world's largest machine learning training and inference clusters. Our organization builds both the SoCs and the low‑level software stack that brings these chips to life—drivers that expose the hardware to the OS, runtime libraries that orchestrate computation, and collective communication software that coordinates thousands of chips working together across a network.

• Develop and own components of our SoC models, both single‑chip and at the datacenter‑scale level.
• Debug complex hardware/software interactions across the full software stack—from register‑level bring‑up on functional models and emulators to performance analysis on live silicon.
• Collaborate with chip architects, RTL designers, modelers, compiler engineers, and ML framework teams to co‑design and validate the hardware/software interface.
• Contribute to the design of hardware features by providing a software perspective early in the chip development cycle.
• Build tooling, test infrastructure, and automation that accelerates development for yourself and your teammates.

• Are comfortable reading hardware specs and translating them into working software.
• Have debugged problems where the root cause could be in hardware, software, or the interface between them.
• Have built firmware, drivers, runtime software, or communication libraries for SoCs, ASICs, GPUs, CPUs, or FPGAs.
• Care about performance and have experience profiling and optimizing latency‑sensitive or throughput‑critical code paths.
• Are comfortable in C++ close to the hardware and use Python for tooling and automation.
• Enjoy working on a small, high‑impact team where you own significant pieces of the stack end‑to‑end.

• 6+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience.
• Experience as a mentor, tech lead or leading an engineering team.
• 7+ years of professional experience developing firmware, drivers, runtime software, or low‑level systems software for custom hardware (SoCs, ASICs, GPUs, CPUs, FPGAs).
• Experience programming in C++, Python, and/or Rust (preference for at least two).
• Knowledge of SoC, CPU, GPU, and/or ASIC architecture and micro‑architecture.

• Experience with collective communication libraries or distributed systems primitives (MPI, NCCL, RCCL, or similar).
• Experience debugging using functional models, QEMU, FPGA, or emulators.
• Experience with Linux kernel development, device drivers, or bare‑metal firmware.
• Experience building functional or performance models of SoCs.
• Experience co‑designing hardware/software interfaces with architecture or RTL teams.
• Familiarity with PCIe, DMA engines, on‑chip interconnects, or network‑on‑chip architectures.
• Experience with performance profiling and optimization of latency‑sensitive software.
• Experience with multi‑threaded, multi‑process, or asynchronous programming models.

Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.

• Cupertino, CA – $ to $ USD annually.
• Austin, TX – $ to $ USD annually.

Company:
Annapurna Labs (U.S.) Inc.

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