Sr Software Engineer, Graviton Software, Annapurna Labs; AWS

Sr Software Engineer, Graviton Software, Annapurna Labs

The AWS Graviton Software team is seeking Software Engineers to optimize performance for AWS Graviton. Graviton delivers the best price/performance in AWS data centers. For the past 2 years, Graviton has powered the majority of new EC2 capacity and is used by over 90% of our largest customers.

You’ll drive performance optimization across open source projects, internal services, and customer applications, working on everything from Linux kernel development to C++/Rust debugging to assembly‑level optimization. Our team optimizes a diverse range of applications including databases, web services, games, video encoding, ML, and HPC workloads. This doesn’t mean you have all those skills, but you’ll have a chance to learn from those who do.

This is a unique opportunity to impact how software runs in AWS, while growing your technical breadth and depth.

• Enhance architectures and algorithms for optimal performance
• Use tools like Aperf, sysstat, sysctl, perf to identify bottlenecks
• Monitor and analyze processor, OS, and workload metrics
• Optimize software performance for AWS customers and AWS services (e.g., S3, Lambda, EMR, Elasti Cache, RDS)

• Contribute to Linux kernel improvements
• Contribute to various other open source projects
• Develop analysis frameworks and automation systems

• Enhance APerf, our open‑source Rust‑based performance tool
• Create new performance analysis features
• Build and maintain automation solutions

The Graviton Software organization ports, optimizes, and develops software to drive down the cost of adoption and operation for AWS Graviton instances. We proactively improve and upstream open source software, including Linux kernel, operating system, compilers, libraries, and applications. We help internal and external customers troubleshoot and fix performance bottlenecks that prevent them from using Graviton and develop tools to automate most of the heavy lifting.

We maintain publicly available documentation:
Graviton Developer Guide on Git Hub.

• 5+ years of professional software development experience
• 5+ years of programming with at least one software programming language
• 5+ years of leading design or architecture of new and existing systems
• 5+ years of full software development life cycle experience, including coding standards, code reviews, source control management, build processes, testing, and operations

• Bachelor’s degree in computer science or equivalent
• Experience as a mentor, tech lead, or leading an engineering team

Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status. Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit (Use the "Apply for this Job" box below).

for more information.

The base salary range for this position is $ – $ USD annually. Your Amazon package will include sign‑on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience, qualifications, and location. Amazon also offers comprehensive benefits including health insurance (medical, dental, vision, prescription, Basic Life & AD&D insurance and option for Supplemental Life plans, EAP, Mental Health Support, Medical Advice Line, Flexible Spending Accounts, Adoption and Surrogacy Reimbursement coverage), 401(k) matching, paid time off, and parental leave.

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Posted:
February 25, 2026 (Updated about 15 hours ago)