Jobs in the United States

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Added 45 mins ago
Principal Software Engineer
Pearson
Hoboken, NJ
We are modernizing Pearson's content platform into a set of shared platform services. You will be one of the principal engineers leading that work hands-on. You design the target systems…
Added 1 hour ago
Principal Structural Engineer - San Francisco, CA
Stantec
San Francisco, CA
Stantec is seeking a highly accomplished Principal Structural Engineer to lead work on medium and large projects, and to manage and grow a team of Structural Engineers supporting local and…
Added 1 hour 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 1 hour ago
Distinguished Hardware Engineer
Cisco Systems, Inc.
San Jose, CA
The Common Hardware Group (CHG) creates innovative hardware platforms central to the AI era, powering Cisco’s core Switching, Routing, and Wireless products for organizations globally. Our…
Added 1 hour ago
Principal Systems Engineer
The Mitre Corporation
McLean, VA · Springfield, VA
…the public interest. With objectivity and integrity at our core, we lead federally funded research and development centers for U.S. government agencies – collaborating with industry and…
Added 1 hour ago
Staff Site Reliability Engineer
Veeam Software
Remote, United States
…product delivery safe and fast. As a Staff Site Reliability Engineer, you’ll lead by building reliable-by-default platforms, tooling, and patterns that product teams adopt at scale. You…
Added 2 hours ago
Thermal Analysis Engineer III
Axiom Space
United States
Axiom Space is a human space exploration company, building era-defining space infrastructure and delivering technology-driven solutions that will empower civilization to transcend Earth.…
Added 2 hours ago
Principal Engineer, Identity & Access Management (IAM) - Microsoft Entra ID
Boston Scientific
Arden Hills, MN
Boston Scientific is seeking a Principal Engineer, Identity & Access Management (IAM), specializing in Microsoft Entra ID and cloud identity to provide enterprise-level technical leadership…
Added 3 hours ago
Principal Software Engineer
DQQ Cohesity Inc.
Santa Clara, CA
We are looking for an exceptional Principal Engineer (L8) to lead the architecture and development of next-generation cloud-native services and platform infrastructure powering large-scale…
Added 3 hours ago
Software Development Engineer II, Efficiency & Performance, Alloy, Region Flex Efficiency
Amazon.com Services LLC
Sunnyvale, CA
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…
Added 3 hours ago
Software Development Engineer III, Efficiency & Performance, Alloy, Region Flex Efficiency
Amazon.com Services LLC
Sunnyvale, CA
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…
Added 3 hours ago
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Senior Core Infrastructure Engineer
Oracle
Santa Clara, CA · Seattle, WA · Austin, TX · Nashville, TN
- $79,200 to $209,500 USD / year
As a Senior Software Development Engineer in the Oracle Cloud Infrastructure (OCI) Security Platform division, you will help build and operate OCI’s Key Management Service (KMS), a…
Added 3 hours ago
Principal Engineer, Identity & Access Management (IAM)
Boston Scientific
Arden Hills, MN
Boston Scientific is seeking a Principal Engineer, Identity & Access Management (IAM), specializing in Microsoft Active Directory to provide enterprise-level technical leadership in the…
Added 3 hours ago
Principal Site Reliability Engineer
HITACHI ENERGY USA INC
Raleigh, NC · Atlanta, GA · Houston, TX · Broomfield, CO
Hitachi Energy is seeking a Principal Site Reliability Engineer to ensure the secure, reliable, and efficient operation of cloud‑hosted environments that support ESS software products and…
Added 4 hours ago
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Lead Principal Application Software Engineer
Oracle
United States
- $104,600 to $264,100 USD / year
Added 4 hours ago
Principal ScienceLogic Skylar 1/SL1 Engineer
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Fort Meade, MD
The successful candidate will serve as a primary technical engineer for implementation of the Skylar 1 (formerly SL1) platform, including deployment of the core Skylar 1/database…
Added 4 hours ago
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Lead Full Stack Security (Systems & Software) Engineering (GRC)
Salesforce, Inc.
WA
- $172,500 to $260,100 USD / year
…Compliance (GRC) platform at Salesforce. As a lead full stack engineer, you own the architecture, technical roadmap, and delivery of the platform's core engines, including policy as code,…
Added 5 hours ago
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Principal Core Infrastructure Engineer
Oracle
Seattle, WA · Santa Clara, CA
- $114,600 to $234,600 USD / year
Strong experience building backend services, large-scale distributed systems, cloud infrastructure, or workflow orchestration platforms.
Added 6 hours ago
UI
QMS Engineer III
UNIVERSAL INSTRUMENTS CORPORATION
Conklin, NY
- $85,000 to $95,000 USD / year
Professional and Respectful Work Environment Driven by Our “6-C’s” Core Values: Customer-Centric, Collaboration, Creativity, Character, Courage, and Community.
Added 6 hours ago
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Principal DevOps / Data Engineer
Alder
Newton, MA
- $175,000 to $195,000 USD / year
Alder is building an intelligence-first operating system for eldercare, on AWS with a data lakehouse at its core. The Principal DevOps & Data Engineer is a hybrid role that owns two tightly…
Added 7 hours ago
Principal System Tests & Diagnostics Engineer
Graphcore
Austin, TX
We are seeking a highly skilled Principal System Tests & Diagnostics Engineer to develop, extend, and integrate specialized silicon validation and diagnostics tools for next-generation AI…
Added 7 hours ago
Chief Engineer
BOOZ, ALLEN & HAMILTON, INC.
Reston, VA
…fabrics with varying security classifications. As the Chief Engineer, you will directly manage and orchestrate cross-functional engineering teams structured around core DoW-approved Zero…
Added 7 hours ago
Principal Cybersecurity Engineer - Enterprise Security Engineering
Workday, Inc.
GA
As a Principal Cybersecurity Engineer on the Enterprise Security Engineering team, you will serve as a senior technical authority across our corporate endpoint fleet and an architect of our…
Added 7 hours ago
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Principal Support Engineer
Oracle
Nashville, TN
- $69,400 to $148,300 USD / year
Added 7 hours ago
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Principal Site Reliability Engineer
Oracle
TX
- $84,900 to $209,500 USD / year
- Provides operational support for technology, incidents and issues arising within Oracle Healthcare services and Infrastructure.

Amazon.com Services LLC

Software Development Engineer II, 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

3+ years of non-internship professional software development experience
2+ years of non-internship design or architecture (design patterns, reliability and scaling) of new and existing systems experience
1+ years of software development engineer or related occupational experience
1+ years of designing and developing large-scale, multi-tiered, multi-threaded, embedded or distributed software applications, tools, systems, and services using: C#, C++, Java, or Perl experience
1+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience
1+ years of programming using a modern programming language such as Java, C++, or C#, including object-oriented design experience
Bachelor's degree or foreign equivalent in Computer Science, Engineering, Mathematics, or a related field Preferred qualifications
3+ 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 - 165,200.00 - 223,600.00 USD annually

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