Jobs in the United States

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Added 5 mins ago
Principal Software Engineer
Pearson
Hoboken, NJ
12+ years building and operating production software, including 4+ years at staff or principal level, or as technical lead across several teams or a large multi-service system.
Added 8 mins ago
Principal Geotechnical Engineer/Business Unit Leader (Office Manager)
SOCOTEC
Tucson, AZ
SOCOTEC is a provider of niche consulting services within the architecture, engineering and construction industries focusing on high-performance buildings and specialty structures. Through…
Added 24 mins ago
Program Manager
Chenega Corporation
San Antonio, TX
Coordinate professionally with engineering, program management, leadership, mission customers, performers, and internal and external organizations.
Added 24 mins ago
WI
(USA) Principal, Software Engineer, Information Security
Walmart Inc.
United States
- $110,000 to $220,000 USD / year
The Principal Software Engineer, Information Security, leads the design and implementation of secure, scalable software solutions aligned with business objectives. This role requires…
Added 24 mins ago
WI
(USA) Principal, Software Engineer, Information Security
Walmart Inc.
United States
- $110,000 to $220,000 USD / year
As a Principal Software Engineer in Information Security, you will lead the design and implementation of secure, scalable software solutions that align with business objectives. This role…
Added 24 mins ago
WI
(USA) Principal, Software Engineer
Walmart Inc.
Bentonville, AR
- $110,000 to $220,000 USD / year
As a Principal Software Engineer, you will lead the design and delivery of scalable platform capabilities, driving the full software development lifecycle from coding to deployment and…
Added 24 mins ago
WI
Principal, Software Engineer - Fullstack
Walmart Inc.
United States
- $143,000 to $286,000 USD / year
As a Principal Engineer- fullstack, you will act as a hands-on technical leader and architect for the Marketplace Orders and Returns platform. This role requires deep technical expertise…
Added 24 mins ago
C3BM Principal Systems Analyst
Chenega Corporation
Huntsville, AL
Venturi, LLC A Chenega Company has an exciting career opportunity for a C3BM Principal Systems Analyst who will be part of the Command, Control, Communications, and Battle Management (C3BM)…
Added 28 mins ago
Principal Structural Engineer - San Francisco, CA
Stantec
San Francisco, CA
Experience with industry standard Structural Engineering software (CSI, RISA, RAM, etc.).
Added 28 mins ago
Engineer Principal – Spacecraft Mechanical Design
BAE Systems
Boulder, CO
Job Description The Engineering, Science and Analysis (ESA) Strategic Capabilities Unit comprises the technical talent and organizational leadership that enables the successful delivery of…
Added 30 mins ago
Principal Engineer, System Planning (Hybrid Schedule)
Eversource Energy
Manchester, NH
We have 2 exciting roles for Principal Engineers, System Planning to join the Eversource Transmission System Planning team as a Principal Engineer. This critical role provides technical…
Added 30 mins ago
O
Senior Principal - Oracle Cloud Infrastructure AI Network Engineering
Oracle
Concord, NH
- $126,200 to $264,100 USD / year
…networking, multi-tenant Infrastructure-as-a-Service (IaaS), and Software Defined Networking (SDN) operating at massive…
Added 30 mins ago
O
Principal AI Agent / Software Engineer- Nashville
Oracle
Concord, NH
- $114,600 to $234,600 USD / year
The Principal AI Agent / Software Engineer is a Senior Staff-level, hands-on technical leadership role responsible for defining, building, and operating next-generation AI systems on Oracle…
Added 32 mins ago
Principal AI Software Architect
Cass Information Systems
Columbus, OH
The Principal Artificial Intelligence (AI) Software Architect leads the design, development, and deployment of advanced AI and software engineering solutions across the enterprise. This…
Added 37 mins ago
Procurement Specialist
United States
Experience with ERP software and proficient with MS Office Suite (Word, PowerPoint, Excel, Visio)
Added 40 mins ago
Principal Engineer - AV Simulation and Evaluation
NVIDIA USA
CA
We are seeking a Principal Software Engineer to architect and build core platform systems to accelerate Physical AI development, such as Autonomous Driving (AV) & Robotics. This is a…
Added 40 mins ago
Principal Forward-Deployed Engineer
Docusign
Remote, United States
As a Presales Principal Docusign FDE specializing in Procurement, you will work side by side with senior functional and technical client team members - including Procurement Executives,…
Added 40 mins ago
Principal Forward-Deployed Engineer
Docusign
Remote, United States
As a Presales Principal Docusign FDE specializing in Procurement, you will work side by side with senior functional and technical client team members - including Procurement Executives,…
Added 42 mins ago
Senior Data Scientist (TS/SCI)
Ninja Analytics
Washington
in operations research, industrial engineering, mathematics, statistics,
Added 42 mins ago
Distinguished Hardware Engineer
Cisco Systems, Inc.
San Jose, CA
Technical Mentorship: evaluate the global Silicon One engineering organization by mentoring principal engineers and technical leads to foster a culture of innovation.
Added 46 mins ago
Associate Principal Scientist, Pharmacokinetics
Merck Sharp & Dohme LLC
PA
…Metabolism and Pharmacokinetics (DMPK) group. The Associate Principal Scientist will be a key contributor to multi-disciplinary drug development and discovery efforts providing an…
Added 53 mins ago
Principal Forward-Deployed Engineer
projects/helpful-passage-853/companies/9810ab3a-d8cd-4ba4-9ee5-ca421241fe3c
United States
Added 53 mins ago
Principal Forward-Deployed Engineer
projects/helpful-passage-853/companies/9810ab3a-d8cd-4ba4-9ee5-ca421241fe3c
United States
Added 57 mins ago
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Oracle Consulting Senior Principal, Agentic AI Developer - GDI
Oracle
Reston, VA
- $87,000 to $187,000 USD / year
…fast-paced, data-driven organization and enjoy solving complex AI/ML engineering challenges, we want to hear from you. The position requires the ability to obtain and maintain a TS/SCI…
Added 57 mins ago
O
Senior Application Software Engineer
Oracle
United States
- $86,100 to $187,000 USD / year
…Health Record (EHR) platform. We are seeking a highly skilled Principal Software Engineer to join our Clinical Applications Engineering team focused on modernizing provider workflows, inbox…

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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