Jobs in the United States

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Added 13 mins ago
Software Engineer - Product (Technical Leadership)
Meta
Boise, ID
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 13 mins ago
Principal Software Engineer
Lyric
Boise, ID
The Principal Software Engineer is responsible for shaping the technical direction of our products and driving the overall engineering strategy for our flagship initiatives. The position…
Added 18 mins ago
Software Engineer - Product (Technical Leadership)
Meta
Juneau, AK
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 18 mins ago
Principal Software Engineer
Lyric
Juneau, AK
The Principal Software Engineer is responsible for shaping the technical direction of our products and driving the overall engineering strategy for our flagship initiatives. The position…
Added 34 mins ago
O
Principal Core Infrastructure Engineer-Network Capacity
Oracle
Nashville, TN
- $114,600 to $234,600 USD / year
Oracle Cloud Infrastructure, or OCI, is seeking a Principal Software Developer to design and build scalable software capabilities that support infrastructure demand and capacity planning.
Added 4 hours ago
Software Engineer I
Principal Financial Group
Des Moines, IA
Working proficiency in at least one modern programming language (e.g., Java, JavaScript/TypeScript, Python, C#).
Added 4 hours ago
Modeling Simulation & Analysis Engineer 3 or 4 (Principal or Sr. Principal Level)
CORP-Corporate Office
United States
Northrop Grumman Aeronautics Systems has an opening for a Modeling Simulation and Analysis Engineer (Principal or Sr. Principal Level) to join our team of qualified, diverse individuals…
Added 5 hours ago
Principal Software Engineer (Onsite)
RTX
United States
Raytheon is seeking a Principal Software Engineer Location: Aurora, CO (Buckley)
Added 6 hours ago
BH
Principal Enterprise Cloud Architect
Banner Health
Remote, United States
- $76.73 to $127.88 USD / hour
…place where deep technical mastery meets genuine purpose. As a Principal Cloud Architect will find this opportunity compelling for the technical rigor, organizational impact, and culture of…
Added 8 hours ago
Principal Engineer Software
Northrop Grumman
Colorado Springs
Experience using debugging tools and techniques for Java and Linux (e.g., IDE debuggers, jstack, jmap, strace, gdb, log-based debugging)
Added 8 hours ago
Software Engineer - Level 2 or 3 - Space AHT
Northrop Grumman
Huntsville
As a software developer on the GMD Weapon System (GWS) Fire Control (GFC) software team, you will be part of the team that writes the software (currently ~1.5 million lines of code) that…
Added 9 hours ago
NJ
Junior Applications Developer (Information Technology Analyst 1)
New Jersey Courts
Trenton, NJ
- $63,040.84 to $103,812.28 USD / year
…have an opportunity for an entry level IT analyst / full stack developer to design and build new enterprise level web-based Applications. This will include full life cycle responsibilities;…
Added 9 hours ago
NJ
AI Supervisor (Administrative Supervisor 4)
New Jersey Courts
Trenton, NJ
- $85,524.22 to $138,623.68 USD / year
Our JAVA/PEGA/AI-centric environment includes PRPC 8.X on Cloud, Agile Studio, AWS and Azure services - including EC2, Lambda, Blob Storage, Container Apps, Function Apps, indexer…
Added 9 hours ago
Senior Principal Systems Engineer
Butler America
Woburn, MA
Senior Principal Systems Engineer Location: Woburn, MA Job ID: #73448 Pay Range: $113-126 ph (W2) Duration: 12 mos What You Will Do:
Added 9 hours ago
Principal Systems Operations Engineer
RTX
United States
We have an exciting opportunity for a Principal Systems Operations Engineer supporting one of our premier programs within Raytheon, an RTX Business, in the Space Intelligence, Surveillance,…
Added 9 hours ago
Principal Engineer
ServiceTitan, Inc.
Remote, United States
Deep expertise in at least one primary technology stack (e.g. C#/.NET, Java,C++ or equivalent), with the ability to quickly ramp up on and contribute to any technology in ServiceTitan's…
Added 9 hours ago
Principal Software Automation/Test Engineer
Palo Alto Networks, Inc.
CA
…scalable, maintainable test frameworks and tooling in Python, Go, Java, or TypeScript that engineering teams across the organization…
Added 12 hours ago
Software Engineer - Level 2 or 3 - Space AHT
CORP-Corporate Office
United States
As a software developer on the GMD Weapon System (GWS) Fire Control (GFC) software team, you will be part of the team that writes the software (currently ~1.5 million lines of code) that…
Added 12 hours ago
Lead Associate Principal, Software Engineering SDET
The Options Clearing Corporation
United States
[Required] Java-based software development experience, fluent in object-oriented design, industry best practices, and architectur
Added 13 hours ago
Principle SRE
Merge Healthcare Solutions Inc. (US)
Remote, United States
Added 13 hours ago
FV
IT Developer/IT Developer, Sr.
Flathead Valley Community College
KALISPELL, MT
- $65,000 to $75,000 USD / year
Developer - $65,000 - $70,000 / Developer Sr. $70,000 - $75,000 depending on education, experience, and skill level. Full time, 12 mos., benefit eligible.
Added 14 hours ago
Sr. Software Development Manager, AWS OpenSearch Service
Amazon
Austin, TX
We work in Java, Rust, Python, Go, and C/C++. We contribute upstream to OpenSearch and Apache Lucene. We are customer-obsessed, operate with the entrepreneurial pace of a startup inside one…
Added 14 hours ago
Software Engineer Lead - Mortgage Platforms
United Services Automobile Asn
United States
Expertise in Golang, Java, Python, C++, or similar. Also, proficiency in multiple technologies and database platforms.
Added 14 hours ago
AP
Application Architect - Enterprise & AI
Accommodations Plus International
Melville, NY
- $130,000 to $140,000 USD / year
…confidently and make good architectural decisions within AWS, Java, Angular, Oracle, PostgreSQL, Amazon Kiro, Kafka, SQS, GitHub…
Added 14 hours ago
WI
Principal, Technical Program Manager
Walmart Inc.
Bellevue, WA
- $158,350 to $264,000 USD / year
Position: Principal, Technical Program Manager

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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