Jobs in the United States

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Added 1 min ago
KC
Computational Physics Algorithm Engineer
KLA Corporation
Milpitas, CA
- $136,300 to $231,700 USD / year
…but is not required. Experience with collaborative software development practices such as code review, automated testing and deployment is a…
Added 1 min ago
Software Engineering Intern
KLA Corporation
Austin, TX
We're seeking a motivated Software Engineer intern to join our Austin development team for the summer of 2027. You will own a dedicated, high-impact project from start to finish, working…
Added 1 min ago
KC
Software Engineer
KLA Corporation
Milpitas, CA
- $114,800 to $195,200 USD / year
In this role, you will be a part of the system software engineering group and will be responsible for software development and maintenance of on-tool, back-end software module.
Added 1 min ago
RC
Data Analyst (AI)
Reef Capital Partners
Lehi, UT
- $80,000 to $110,000 USD / year
Build and maintain dashboards in Reef Analytics, our internal analytics application, using AI coding tools (Claude Code, Cursor, or similar) as your primary development partner.
Added 1 min ago
Sr Engineer Piping
Zachry Group
Downers Grove, IL
The Senior Piping Engineer will play a critical role in the engineering design, analysis, and development of complex piping systems for onshore oil & gas, chemical, LNG, and renewable…
Added 1 min ago
Engineer II Instrumentation & Control
Zachry Group
Houston, TX
Practical knowledge of routine and precedent design and working knowledge of basic engineering principles for application in solving problems. Perform studies, preparation of…
Added 2 mins ago
Design Verification Engineer Intern (Summer 2027)
MIPS Holding Inc
TX
…assignments that prioritize your growth and potential, professional development opportunities, and the chance to network with…
Added 3 mins ago
A
Senior Test Engineer (Sample Role)
Alector
South San Francisco, CA
- $100,000 to $120,000 USD / year
As a Senior Test Engineer, you will partner with theEngineering team to design, run, and improve test scenarios. This posting is intended to exercise ATS features such as job creation,…
Added 4 mins ago
A
Test Equipment Design Engineer
Aerotek
Berkeley, CA
- $69.44 to $104.17 USD / hour
Job Title: Test Equipment Design EngineerJob DescriptionWe are seeking a hands-on Test Equipment Design Engineer to design and develop custom electrical test infrastructure supporting…
Added 5 mins ago
Cyber Systems Engineer - Integrated Mission Defense Support
Arcfield
Chantilly, VA
…coordination and reporting, Risk Management Framework (RMF) application, IA compliance measurements and metrics, Assessment and Authorization (A&A), Vulnerability Management, and Cyber…
Added 5 mins ago
Lead DevOps Engineer St. Louis, USA
London Stock Exchange Group Holdings Inc
St. Loui, MO
This Lead DevOps Engineer position is a key role within the SRC Team which sits within the Application Services Division, with responsibilities to facilitate adoption of standard DevOps…
Added 6 mins ago
Staff QA Engineer
DexCom Inc
San Diego, CA
Your advanced application of quality engineering principles, including risk management, root cause analysis, statistical analysis, process capability, sampling plans, measurement system…
Added 7 mins ago
Operations Engineer (Starshield)
SpaceX
Hawthorne, CA
Starshield is a satellite development program focused on efforts in Earth observation, communications, and hosted payloads that enable innovation in national security efforts.
Added 8 mins ago
BC
Senior AI Engineer - Finance
Bechtel Corporation
Washington, DC
- $140,800 to $203,700 USD / year
Bechtel is seeking a Senior AI Engineer – Finance to serve as a hands-on technical leader within the Finance Transformation and AI team, responsible for architecting, building, and scaling…
Added 8 mins ago
Quality Principal Engineer I
Zimmer, Inc.
Warsaw, IN
Assisting Manufacturing, Sourcing and Development in the interpretation and application of regulations.
Added 9 mins ago
Applications Engineer New College Grad- Bachelor's/Master's (Santa Clara/Austin)
Applied Materials, Inc
Santa Clara, CA · Austin, TX
The CrossMatch team in AGS is responsible for the development and implementation of the Applied Materials Chamber matching framework. It is a core team that collaborates across a wide range…
Added 9 mins ago
Product Quality & Reliability Engineer IV - (E4)
Applied Materials, Inc
Santa Clara, CA
As a Product Quality and Reliability Engineer you will part of Semiconductor Products Group (SPG) Quality group supporting Imaging and Process Control (IPC) Business Unit. You will be part…
Added 9 mins ago
HW Qual and DST Engineer
Applied Materials, Inc
Albany, NY
1. Lead Qualification of complex, non-system components (isolated from application);
Added 9 mins ago
Application Engineer IV (E4)
Applied Materials, Inc
Santa Clara, CA
Maintain detailed documentation related to application development, characterization studies, validation results, and customer support activities.
Added 10 mins ago
Cloud Java Backend Engineer
SCI SOLUTIONS GLOBAL
Jersey City, NJ
Cloud Java Backend Engineer – Distributed Data Platforms
Added 10 mins ago
Backend Engineer – Java or Python & AWS
SCI SOLUTIONS GLOBAL
Jersey City, NJ
seeking a Cloud Native Backend Engineer with strong Java or Python development
Added 10 mins ago
Senior Engineer, Mechanical - Fixed Equipment & Piping Integrity
Calcasieu Pass Operations LLC
United States
…demand for North American natural gas and support the long-term development of clean and reliable North American energy supplies. Using reliable, proven technology in an innovative plant…
Added 11 mins ago
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…
Added 11 mins ago
Senior Software Engineer - Operational Improvement
Western Governors University
Salt Lake City, UT
Influence technical direction. Serve as a technical lead, consultant, or go-to engineer in an application or technical domain and help teams make sound engineering decisions.
Added 11 mins ago
Sr Acoustic Engineer, Risk and Resiliency
Amazon Data Services, Inc.
Seattle, WA
…prospective datacenter locations to identify liability, site development, and operational risks. The AWS Risk and Resiliency team is seeking a Senior Acoustic Engineer whose primary role is…

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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