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Fullstack Software Engineer II, Rebates
Conga
Houston, TX
…to innovate and support growth through individual and team development, all within an environment where every voice is…
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Senior Software Engineer - Operational Improvement
Western Governors University
Salt Lake City, UT
As a Senior Software Engineer, you’ll take ownership of complex technical problems and help shape the systems and engineering practices that support our university and its students. You’ll…
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Senior RF Engineer II (Hardware)
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As a Senior RF Engineer II (Hardware), you will own the technical direction and final sign-off for RF hardware implementation across all Neros products involving wireless links. You will…
Added 1 min ago
Sr Acoustic Engineer, Risk and Resiliency
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The AWS Risk and Resiliency team supports datacenter site selection through performing technical due diligence on prospective datacenter locations to identify liability, site development,…
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Electrical Design & Verification Engineer (DVE), Leo Optical ISL Development
Amazon Kuiper Manufacturing Enterprises LLC
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Senior iOS Engineer - Identity & Access Management
onX
Missoula, MT · Austin, TX · Bozeman, MT · Denver, CO · Minneapolis, MN · Portland, OR · Salt Lake City, UT · Seattle, WA
onX is seeking a Senior iOS Engineer who will contribute to meaningful, real-world outcomes that have a lasting impact for customers and the business. In this role, as part of the Identity…
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Senior Android Engineer - Identity & Access Management
onX
Missoula, MT · Austin, TX · Bozeman, MT · Denver, CO · Minneapolis, MN · Portland, OR · Salt Lake City, UT · Seattle, WA
onX is seeking a Senior Android Engineer who will contribute to meaningful, real-world outcomes that have a lasting impact for customers and the business. In this role, as part of the…
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Mechanical Engineer (PSP) - Phoenix, AZ
Military Spouse Jobs & VetJobs
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The Mechanical Engineer is responsible for the engineering, coordination, and technical oversight of the mechanical scope of the project.
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Environmental Project Manager
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Build relationships and serve clients locally while tapping into technical expertise and project resources from across Terracon.
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Senior Product Development Engineer
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Engineer Senior – Spacecraft Mechanical Design
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Demonstrated experience in technical documentation and procedure development for complex systems (e.g., aerospace, defense, test range, or similar environments).
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Ground Systems Engineer SME
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We are seeking a highly skilled Ground Systems Engineer to support Golden Dome, a critical Department of Defense (DoD) initiative focused on space-based operations and national security.…
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Electrical Engineering Technician
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nLIGHT's Directed Energy team is seeking a highly motivated and organized Electrical Engineering Technician to support development of state-of-the-art fiber-laser power electronics. This…
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Full Stack Java Developer
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Support and mentor less experienced engineers by sharing technical knowledge and development best practices.
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Advanced Systems Engineer (Hardware Focused)
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As a systems engineer at GDMS, you’ll be a member of a cross functional team responsible for the system engineering and functional design of the combat systems of tomorrow. As a member of…
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Electrical Design Engineer
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Data Engineer
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FTB's Data Lake Development Unit is seeking an enthusiastic, proactive, and motivated Data Engineer (Information Technology Associate) who takes initiative and is interested in contributing…
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…Employees appointed to the Attorney or Water Resource Control Engineer classification will receive Recruitment Higher Above Minimum (HAM) rate in accordance with the approved Civil Service…
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Sr. Radio Frequency (RF) Engineer
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…programs, solving the hardest problems and providing unmatched technical expertise. As the operator of a federally funded research and development center (FFRDC), we are broadly engaged…
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The Launch Systems, Operations, and Development team within the Launch Systems Division is seeking a well-qualified individual with demonstrated leadership and exceptional communication…
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Deputy Lead Engineer - Satellite Ground Systems
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Senior Backend Software Engineer
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- $49 to $59 USD / hour
…reach production. It's a great fit for a strong Scala/backend engineer who wants exposure to modern ML infrastructure and AI-powered development tools without needing to come from a…
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Amazon.com Services LLC

Software Development Engineer III, Efficiency & Performance, Alloy, Region Flex Efficiency

Sunnyvale, CA, United States

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Job details

Posting language: English
Posted: Nov 2, 2026

Original job description

Amazon runs one of the world’s most complex eCommerce platforms, where operational efficiency directly drives profitability and customer satisfaction. Efficiency is core to Amazon’s DNA, reflected in the Leadership Principle of Frugality and the Flywheel strategy that lowers cost structures to fuel growth. With the cost of operating Amazon’s global infrastructure measured in billions of dollars, achieving true economies of scale rather than allowing scale to increase costs is essential to our success.

The Alloy team serves as Amazon’s central efficiency organization, leading company-wide cost optimization through intelligent and automated use of AWS resources. Our work spans thousands of internal services, enabling large-scale efficiency improvements with minimal engineering effort from partner teams. We drive optimization across multiple layers of Amazon’s stack, focusing on GPU efficiency infrastructure for AI/ML workloads through centralized scheduling, software performance profiling, and end-to-end storage optimizations through data lifecycle management. These cross-cutting initiatives transform isolated team optimizations into scalable, safe, and reusable systems that continuously improve efficiency across Amazon.

As a Software Development Engineer in Alloy, you will collaborate with service and infrastructure teams across Amazon to identify and eliminate performance bottlenecks in large-scale distributed systems. You will design and build mechanisms to measure, analyze, and automate performance improvements, using data to set and drive company-wide efficiency goals. You will work closely with Principal and Distinguished Engineers, gaining exposure to Amazon’s most advanced systems while developing deep technical expertise and leadership skills. Your work will directly influence how Amazon’s software and services operate at scale, delivering measurable cost savings in the tens to hundreds of millions of dollars each year and advancing Amazon’s commitment to operational excellence and sustainability.

In this role, you will:

Solve performance and efficiency problems that manifest at scale.
Design metrics and measure performance and cost efficiency of services in Amazon's ecosystem.
Collaborate with service teams to identify inefficiencies, and design and implement solutions.
Design and develop highly available components and profiling tools.

Key job responsibilities

Design and implement software solutions across the full development lifecycle - from product definition and scoping through coding, testing, deployment, and ongoing maintenance - ensuring high-quality, maintainable, and well-documented code.
Collaborate with customers, stakeholders, and cross-functional peers to understand business and customer needs, translating requirements into scalable system designs that account for performance, security, and extensibility tradeoffs.
Identify and resolve operational issues at their root cause, driving improvements to team operations and reducing support costs through proactive problem-solving and process enhancements.
Evaluate and integrate generative AI tools where appropriate to augment productivity and quality, applying responsible practices to refine outputs and accelerate development workflows.
Mentor and coach fellow engineers through code reviews and knowledge sharing, actively training new team members on system architecture, construction, and operational best practices.

About the team Our team is focused on building reliable, scalable software that directly impacts Amazon's customers. We value collaboration, clear communication, and a commitment to continuous improvement. Every engineer has a voice in technical decisions, and we encourage thoughtful debate to arrive at the best solutions. We are investing in new capabilities and looking for engineers who are excited to help shape our technical direction, grow their skills, and contribute to an inclusive environment where everyone can do their best work. Basic qualifications

5+ years of non-internship professional software development experience
5+ years of programming with at least one software programming language experience
5+ years of leading design or architecture (design patterns, reliability and scaling) of new and existing systems experience
5+ years of highly scalable systems experience
Experience as a mentor, tech lead or leading an engineering team Preferred qualifications
5+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience
Bachelor's degree in computer science or equivalent
Knowledge of system performance, memory management, and parallel computing principles

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

Los Angeles County applicants: Job duties for this position include: work safely and cooperatively with other employees, supervisors, and staff; adhere to standards of excellence despite stressful conditions; communicate effectively and respectfully with employees, supervisors, and staff to ensure exceptional customer service; and follow all federal, state, and local laws and Company policies. Criminal history may have a direct, adverse, and negative relationship with some of the material job duties of this position. These include the duties and responsibilities listed above, as well as the abilities to adhere to company policies, exercise sound judgment, effectively manage stress and work safely and respectfully with others, exhibit trustworthiness and professionalism, and safeguard business operations and the Company’s reputation. Pursuant to the Los Angeles County Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.

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 https://amazon.jobs/content/en/how-we-hire/accommodations for more information. If the country/region you’re applying in isn’t listed, please contact your Recruiting Partner.

The base salary range for this position is listed below. 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. Learn more about our benefits at https://amazon.jobs/en/benefits.

USA, CA, Sunnyvale - 193,300.00 - 261,500.00 USD annually

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