Development Engineer Jobs in Cupertino, CA

The Annapurna Labs team at Amazon Web Services (AWS) builds the AWS Neuron SDK, the software development kit used to accelerate deep learning and GenAI workloads on AWS Trainium machine learning accelerators.

The Neuron Inference organization is at the forefront of optimizing inference performance for a wide range of ML models and model architectures on AWS's custom ML accelerators. We are working across the stack from PyTorch to the hardware-software boundary, our engineers build systematic infrastructure, develop high-performance kernels for ML functions, ensuring every compute unit is fine-tuned for optimal performance for our customers' demanding workloads. We combine deep hardware knowledge with ML expertise to push the boundaries of what's possible in AI acceleration.

As part of the broader Neuron organization, our team works across multiple technology layers — from frameworks and kernels through to compiler, runtime, and collectives. We not only optimize performance on open weight models but also contribute to future architecture designs and work closely with customers to enable optimal performance on their models. This role offers a unique opportunity to work at the intersection of machine learning, high-performance computing, and distributed architectures, where you'll help shape the future of AI acceleration technology.

As a Software Engineer I, you will design and implement business-critical features and contribute to optimizing the performance of models on AWS Trainium end to end. We operate in spaces that are very large, yet our teams remain small and agile. There is no blueprint. We're inventing. We're experimenting. It is a very unique learning culture. The team works closely with customers on their model enablement, providing direct support and optimization expertise to ensure their machine learning workloads achieve optimal performance on AWS ML accelerators. The team also collaborates with open source ecosystems to provide seamless integration and bring peak performance at scale for customers and developers.

This role is responsible for development, enablement, and performance tuning of a wide variety of LLM model families, including massive-scale large language models like GLM, Kimi, and beyond. The Model Enablement team works side by side with compiler engineers and runtime engineers to create, build, and tune distributed inference solutions with AWS Trainium.

You can learn more about Neuron:

• https://awsdocs-neuron.readthedocs-hosted.com/en/latest/compiler/index.html
• https://aws.amazon.com/machine-learning/neuron/
• https://github.com/aws/aws-neuron-sdk
• https://github.com/vllm-project/vllm-neuron
• https://www.amazon.science/how-silicon-innovation-became-the-secret-sauce-behind-awss-success

If this sounds exciting to you - come build the future with us!

Key job responsibilities

• Optimize open models to run best on Trainium, including optimizing sharding, developing NKI kernels and ensuring accuracy. This provides ready-to-serve models to our customers and also gives them a starting point to optimize their own.
• Collaborate with cross-disciplinary teams that may include hardware design, firmware, compiler, runtime, and ML engineers to develop software that enables and optimizes custom ML accelerator silicon
• Write clean, maintainable code (C/C++, Python, or Rust) following best practices for systems-level and performance-critical development
• Participate in code reviews, contribute to technical documentation, and help deploy agentic tools to accelerate the enablement of new models on Trainium
• Demonstrate operational excellence through monitoring, debugging, and resolving issues across hardware-software integration boundaries, including on-call responsibilities
• Keep learning emerging technologies in ML accelerators, compiler optimization, computer architecture, and cloud-scale distributed systems

About the team
The Model Enablement team fosters a builder's culture where experimentation is encouraged and impact is measurable. We emphasize collaboration, technical ownership, and continuous learning.
Our team is dedicated to supporting new members. We have a broad mix of experience levels and tenures, and we're building an environment that celebrates knowledge sharing and mentorship. We care about your career growth and strive to assign projects that help our team members develop their engineering expertise so they feel empowered to take on more complex tasks in the future. Join us to solve some of the most interesting and impactful infrastructure challenges in AI/ML today.
Our team builds and operates software that powers key experiences for Amazon customers. We value technical excellence, collaboration, and a commitment to continuous improvement. Every engineer on the team has a voice in shaping our technical direction and the opportunity to mentor others.
We are focused on building reliable, scalable systems while creating an inclusive environment where engineers at all levels can learn, grow, and do their best work. If you want to solve meaningful problems alongside a supportive and motivated group of engineers, this is the place for you.