Jobs in the United States

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Added 1 min ago
Mechanical Engineer, Specialist
Axiom Space
United States
…leading humanity's expansion off planet, Axiom Space is the principal provider of commercial human spaceflight services and developer of advanced spacesuits for the Moon and beyond. For…
Added 1 min ago
Enterprise Data Analyst Intern, Power BI & Data Quality (Summer 2027)
Axiom Space
United States
…leading humanity's expansion off planet, Axiom Space is the principal provider of commercial human spaceflight services and developer of advanced spacesuits for the Moon and beyond. For…
Added 5 mins ago
EL
Structural Project Engineer
ECS Ltd
Chantilly, VA
- $80,000 to $100,000 USD / year
ECS is seeking a Structural Project Engineer to join our Mid-Atlantic Building Science + Infrastructure team in Chantilly, VA In this role, you will support structural engineering and…
Added 5 mins ago
EL
Structural Senior Engineer
ECS Ltd
Roanoke, VA
- $90,000 to $120,000 USD / year
ECS is seeking a Structural Senior Project Engineer to join our Mid-Atlantic Building Science + Infrastructure team in Roanoke, VA. In this role, you will manage structural engineering and…
Added 5 mins ago
EL
Structural Project Associate
ECS Ltd
Roanoke, VA
- $80,000 to $100,000 USD / year
Review deliverables prepared by junior staff prior to submission for senior and principal review.
Added 5 mins ago
Software Engineer - iOS (Technical Leadership)
Meta
Des Moines, IA
Meta is seeking talented principal engineers to join our teams in building cutting-edge products that connect billions of people around the world. As a member of our team, you will oversee…
Added 5 mins ago
Principal Software Engineer V
Indeed
Des Moines, IA
As a Principal Software Engineer V at Indeed, you will provide technical leadership on complex, cross-cutting platforms and systems that enable teams across the company to build high-impact…
Added 5 mins ago
Consulting Principal, Solutions Engineering Lead
Cognizant
Des Moines, IA
As a Consulting Principal, Solutions Engineering Lead , you will make an impact by designing and delivering enterprise-scale AWS cloud solutions that enable complex application migration,…
Added 5 mins ago
BG
HPC Software Engineer
Bolt Graphics
Sunnyvale, CA
- $165,000 to $300,000 USD / year
We are seeking a talented and experienced HPC Software Engineer to develop and optimize high-performance computing solutions for complex, computationally intensive applications.
Added 5 mins ago
W
EHS Safety Engineer
WGNSTAR
Boise, ID
- $30 to $35 USD / hour
3+ years of experience in a safety role, Field Service Engineer, Equipment Technician, or construction-related safety capacity
Added 5 mins ago
Consulting Principal, AI-Led Mainframe Modernization
Cognizant
Des Moines, IA
As a Consulting Principal, AI-Led Mainframe Modernization , you will make an impact by leading complex mainframe transformation engagements and applying generative AI and AI-enabled…
Added 9 mins ago
Project Manager - Transportation Design
SCJ Alliance
Lacey, WA
Working with the Office Principal and Transportation Business Group Director, you’ll help shape business development efforts, resource plans, annual budgets, and training priorities. You’ll…
Added 12 mins ago
TP
Product Definition Engineer
TAD PGS, Inc.
Norwich, NY
- $40 to $55 USD / hour
We have an outstanding Contract to Hire position for a Product Definition Engineer to join a leading Company located in the Norwich, NY surrounding area.
Added 19 mins ago
Mechanisms Engineer - Opto-Mechanical Systems
Blue Origin Personnel, LLC
Los Angeles, CA · Denver, CO
Blue Origin's Emerging Systems is seeking a motivated Mechanisms Engineer to support the design, analysis, and qualification of precision mechanical systems for the TeraWave constellation.…
Added 19 mins ago
Principal Fluids Engineer
Blue Origin Personnel, LLC
Space Coast, FL · Denver, CO
Added 19 mins ago
Principal Thermal Engineer
Blue Origin Personnel, LLC
Space Coast, FL · Denver, CO
Added 19 mins ago
Principal Engineer - Delivery
Berkshire Hathaway Energy
Reno, NV
Added 19 mins ago
Sr. Principal Vascular Sales Representative - Sacramento, CA / Reno, NV
Medtronic
Reno, NV
Added 19 mins ago
Software Engineer - iOS (Technical Leadership)
Meta
Carson City, NV
Meta is seeking talented principal engineers to join our teams in building cutting-edge products that connect billions of people around the world. As a member of our team, you will oversee…
Added 19 mins ago
Consulting Principal, Solutions Engineering Lead
Cognizant
Carson City, NV
As a Consulting Principal, Solutions Engineering Lead , you will make an impact by designing and delivering enterprise-scale AWS cloud solutions that enable complex application migration,…
Added 19 mins ago
Consulting Principal, AI-Led Mainframe Modernization
Cognizant
Carson City, NV
As a Consulting Principal, AI-Led Mainframe Modernization , you will make an impact by leading complex mainframe transformation engagements and applying generative AI and AI-enabled…
Added 19 mins ago
Principal Software Engineer V
Indeed
Las Vegas, NV
As a Principal Software Engineer V at Indeed, you will provide technical leadership on complex, cross-cutting platforms and systems that enable teams across the company to build high-impact…
Added 20 mins ago
Senior Forward Deployed Engineer (Full-Stack)
Dscout
Remote, United States
Join a small senior team with direct access to the GM, our Principal Engineer, and the Head of AI Research.
Added 20 mins ago
Principal Technology Development Engineer
Silicon Desert Staffing
Bloomington, MN
Added 29 mins ago
Platform Engineer II
Aflac, Incorporated
OR · GA

Amazon.com Services LLC

Software Development Engineer II, Efficiency & Performance, Alloy

Seattle, WA, United States

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Job details

Posting language: English
Posted: Oct 29, 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.

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.

A day in the life

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.

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 Object Oriented Design experience
Bachelor's degree or foreign equivalent in Computer Science, Engineering, Mathematics, or a related field
Experience programming with at least one software programming language 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

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

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, WA, Seattle - 143,700.00 - 194,400.00 USD annually

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More about this job

Skills

Software development
AWS
Leadership
Communication skills
Process improvement
C#
C++
Oracle Java
Perl
Computer science
Recruitment
Mental health

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