Jobs in the United States

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Added 6 mins ago
Senior Principal Engineer, Physical Designer
MSI - (Marvell Semiconductor Inc.) US
Santa Clara, CA
Added 10 mins ago
Software Engineer - iOS (Technical Leadership)
Meta
Helena, MT
Software Engineer - iOS (Technical Leadership) Responsibilities:
Added 10 mins ago
Principal Software Engineer V
Indeed
Helena, MT
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 13 mins ago
Senior Principal Engineer, Late Stage LNP Process Development
Eli Lilly and Company
United States
We are seeking an experienced LNP Process Development Engineer to join the Late Stage LNP Process Development team within Verve. You will be joining a team that is focused on the…
Added 18 mins ago
Senior Test Engineer - Onsite
Medtronic
Lafayette, CO
As a Senior Test Engineer, you will lead verification and validation activities for software and system-level functionality within complex medical device products. This role partners…
Added 18 mins ago
Engineer Principal - Systems - Mission Operations Sustainment-10k Sign-On Bonus
BAE Systems
Broomfield, CO
We re seeking a self-motivated systems engineer to join our Mission Sustainment team. Our sustainment engineers support test, factory reach-back, and operations/maintenance of spacecraft…
Added 18 mins ago
Global Trade Classification Specialist – HS, HTS & ECCN (Remote, USA)
Medtronic
Boulder, CO
Computer literacy and knowledge of software such as Word, Excel, PowerPoint, Access, Product Lifecycle Management programs, and SAP.
Added 19 mins ago
Principal Software Engineer V
Indeed
Denver, CO
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 28 mins ago
Cyber System Security Engineer (CSSE)
KBR
El Segundo, CA
The SSE serves as a principal cybersecurity and RMF Subject Matter Expert (SME) to the program manager, chief engineer, Information System Security Manager (ISSM), Information System…
Added 35 mins ago
O
Senior Principal Software Engineer
Oracle
Nashville, TN
- $135,200 to $306,400 USD / year
Oracle Cloud Infrastructure (OCI) is seeking a Senior Principal Software Engineer to build a new Data Processing Unit (DPU) platform spanning networking and storage. You will address…
Added 42 mins ago
Associate Field Application Engineer - AMD
Avnet US
San Jose, CA
Entry-level electrical or computer engineer who, as a member of the sales and technical team, helps drive customer adoption of AMD adaptive SoCs and FPGAs. The Associate FAE supports…
Added 42 mins ago
Associate Field Application Engineer - AMD
Avnet US
Wilmington, MA
Entry-level electrical or computer engineer who, as a member of the sales and technical team, helps drive customer adoption of AMD adaptive SoCs and FPGAs. The Associate FAE supports…
Added 43 mins ago
Principal Hardware Engineer (onsite)
Palomar Products Inc.
Rancho Santa Margarita, CA
Palomar is looking for a talented and highly motivated Principle Hardware Engineer to join the Hardware Development team and help develop electronic boards incorporated into current and…
Added 50 mins ago
Intern, Systems Software Engineering
Samsung Semiconductor
San Jose, CA
Project Overview: Develop systems software for memory and storage pools that support reinforcement-learning post-training of large language models
Added 53 mins ago
VI
Principal AI Engineer, Agentic Systems
Vuori, Inc
Remote, United States
- $197,500 to $264,390 USD / year
As a Principal AI Engineer specializing in Agentic Systems, you will own designing, building and scaling AI-powered applications, agentic systems and intelligent tooling that enhance how…
Added 59 mins ago
Principal Mechanical Architect – LiquidStack Cooling Solutions
CFO Trane U.S. Inc.-CFO
United States
As a Principal Mechanical Architect – LiquidStack Cooling Solutions at Trane Technologies, you will work as the lead electrical engineer dedicated exclusively to our LiquidStack product…
Added 1 hour ago
Sr Principal Engineer Systems - AHT
Northrop Grumman
Huntsville, AL
Northrop Grumman Defense Systems (NGDS) is seeking Sr Principal Systems to join our team. The preferred candidate will be responsible for developing, allocating, managing, and verifying…
Added 1 hour ago
Principal Engineer Systems - AHT IBCS Poland (NAREW)
Northrop Grumman
Huntsville, AL
Northrop Grumman Defense Systems (NGDS) is looking for a Principal Engineer based out of Huntsville, Alabama for the IBCS Poland Integrated Battle Command System (IBCS). IBCS Poland…
Added 1 hour ago
Principal Material Process Engineer
Northrop Grumman
Huntsville, AL
Northrop Grumman’s Defense Systems sector is seeking a Principal Material Process Engineer to join the Sentinel program in Huntsville, AL. This role may offer a competitive relocation…
Added 1 hour ago
Principal/Director, Technical Program Manager, AI Infrastructure Transformation
Google
San Jose, CA
15 years of experience in technical program management or engineering management, and 5 years of experience as a practicing software engineer.
Added 1 hour ago
Principal Software Engineer, Operations Engineering
Workday, Inc.
OR
We are seeking a Principal Engineer with strong experience in infrastructure automation, configuration management, and CI/CD pipelines. In this leadership role, you will help define and…
Added 1 hour ago
Principal Systems Engineer, Platform Robotics & Vacuum Architecture
Axcelis Technologies, Inc.
Beverly, MA
…manufacturers. Our team is expanding, and we are currently hiring a Principal Systems Engineer. We are looking for a hands-on systems thinker who embodies Axcelis's values of curiosity and…
Added 1 hour ago
Principal Place and Route (PnR) Engineer
SambaNova
Austin, TX · San Jose, CA
The Place and Route team writes the software that maps dataflow graphs onto SambaNova’s Reconfigurable Dataflow Unit (RDU). Our tools partition each graph, place the pieces on the chip’s…
Added 1 hour ago
Experienced principal blockchain engineer with payment and exchange building experience
Travoom
Santa Monica, CA
Extensive experience designing, deploying, and auditing secure and efficient smart contracts. The engineer should be familiar with Solidity for Ethereum or other smart contract languages…
Added 1 hour ago
Senior Informatics Architect
TetraScience
Boston, MA · San Mateo, CA
The Principal Informatics Architect will serve as a critical bridge between scientific meaning and software reality. You are a hybrid practitioner who possesses both formal informatics…

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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