Jobs in the United States

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Added 12 mins ago
Information Systems Security Engineer
Snowflake
McLean, VA
Information Systems Security Engineer (Principal)
Added 14 mins ago
Principal Security Engineer
Crux AI
Palo Alto, CA
You will be the first security engineer at Crux and the architect of how our platform protects customer workloads, from hardware root of trust to the tenant boundary. Reporting within our…
Added 14 mins ago
Principal AI Ops Engineer
Crux AI
Palo Alto, CA
Added 41 mins ago
Principal Data Architect
Babel Street
Reston, VA · Somerville, MA
12+ years building data systems, with at least 5 as the lead architect or principal engineer on a large-scale data platform.
Added 56 mins ago
Distinguished Hardware Engineer
Cisco
San Jose, CA
As a Distinguished Engineer, you will serve as a technical visionary and advisor to Cisco’s engineering business and senior management. You will lead and influence key industry boards,…
Added 57 mins ago
Principal Analytics Engineer
Crisis Prevention Institute
Remote, United States
The Principal Analytics Engineer is the organization’s most senior individual contributor for the enterprise data platform and serves as the end-to-end technical owner of Snowflake and its…
Added 1 hour ago
S
Information Systems Security Engineer
Snowflake
McLean, VA
- $208,000 to $299,000 USD / year
INFORMATION SYSTEMS SECURITY ENGINEER (PRINCIPAL)
Added 1 hour 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 1 hour 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 1 hour 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 1 hour ago
IG
Principal Software Architect
Insight Global
Smyrna, GA
- $140,000 to $240,000 USD / year
- 6+ years as a principal-level software engineer or architect, with the ability to lead technical design and architecture decisions
Added 1 hour ago
O
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 1 hour ago
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Sr. Principal Integration Engineer - Cloud Solutions
NMC USA National Medical Care Inc
Remote, United States
- $137,000 to $229,000 USD / year
The Principal Azure Cloud Solutions Engineer serves as a senior technical authority responsible for designing, implementing, and improving secure, scalable, and resilient solutions on…
Added 1 hour ago
Principal Engineer
Wells Fargo Bank, N. A.
CHARLOTTE, NC · IRVING, TX
We are looking for a Principal Engineer who wants to help lead that change.
Added 2 hours ago
Principal Acoustics Signal Processing Engineer
RTX
United States
Added 2 hours ago
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Principal Engineer, Digital Workplace Technology Engineering
NBCUniversal
Remote, United States
- $180,000 to $210,000 USD / year
The Principal Engineer for Digital Workplace Technology is a senior technical leader within NBCUniversal’s Workplace Technology Engineering (WTE) organization, responsible for defining and…
Added 2 hours ago
Principal Engineer Software, AIKG - Exploration (Chronosphere)
Palo Alto Networks, Inc.
United States
Added 2 hours ago
Principal / Sr Principal Computer Aided Design and Modeling Engineer (AHT)
CORP-Corporate Office
United States
Northrop Grumman Space Systems is seeking a Principal / Sr Principal Computer Aided Design and Modeling Engineer to support radar system development programs in Colorado Springs, CO.
Added 2 hours ago
Hardware Design Engineer
Advanced Micro Devices, Inc
Santa Clara, CA
As a Principal CAD PCB Physical Design Engineer in the Network Technology Solutions Group, NTSG, you will be responsible for the PCB physical design and the technology development for AMD…
Added 2 hours ago
Lead Principal Application Software Engineer
Oracle
United States
Added 2 hours ago
Principal Cloud Data Architect (Microsoft Fabric and Azure)
Children's Health
Dallas, TX
Job Title & Specialty Area: Principal Cloud Data Architect (Microsoft Fabric and Azure)
Added 2 hours ago
Staff Software Engineer
RealWork
Austin, TX
We're looking for a Staff Software Engineer to join our small but growing engineering team. The ideal candidate will have demonstrable expertise in product development, data engineering,…
Added 2 hours ago
Senior Engineer - Robotics and Autonomous Systems - Vernova Research
GE Vernova Operations LLC
United States
The Senior Engineer – Robotics & Autonomous Systems is a senior technical contributor within the Robotics & Computer Vision team at GE Vernova Advanced Research. This role develops advanced…
Added 2 hours ago
N
Principal Customer Sucess Engineer
NetScout
Remote, United States
- $94,500 to $130,000 USD / year
NETSCOUT is continuing to grow & our Services Team is expanding! We are currently seeking a Customer Success Engineer to work in this fast-paced technology environment with world-class…
Added 2 hours ago
SI
Lead Full Stack Security (Systems & Software) Engineering (GRC)
Salesforce, Inc.
WA
- $172,500 to $260,100 USD / year
…engineering experience, including 3+ years in a Lead, Staff, or Principal Engineer capacity leading technical projects and distributed engineering…

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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