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Added 54 mins ago
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Principal Software Engineering - Reliability and FinOps Engineer
AT&T
Bothell, WA
- $155,400 to $261,100 USD / year
As a Principal System Engineer, you will serve as a senior technical leader across FinOps, cloud optimization, system reliability, and AI-driven automation. You will shape and execute…
Added 55 mins ago
Software Development Engineer II, Efficiency & Performance, Alloy
Amazon
Seattle, WA
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
Principal Design Verification Engineer , Annapurna Labs
Amazon
Cupertino, CA
We are looking for a passionate Principal Design Verification Engineer to join our newly formed team responsible for verifying high-speed I/O and scale-up/out components across the SoC. You…
Added 4 hours ago
Sr Platform Engineer
Mayo Clinic
Rochester, MN
Under the direction of the Director – Platform Technology and the Principal Platform Integration Engineer, this team member will support the direct execution and delivery of technical…
Added 5 hours ago
W
(USA) Principal, Software Engineer
Walmart
SUNNYVALE, CA
- $143,000 to $286,000 USD / year
The (USA) Principal, Software Engineer leads the design and delivery of scalable platform capabilities, driving innovation in cloud-native architectures and AI/ML integration. This role…
Added 5 hours ago
W
Principal, Software Engineer - Walmart Data Ventures
Walmart
BELLEVUE, WA
- $132,000 to $264,000 USD / year
The Principal Software Engineer leads platform engineering efforts by delivering scalable, cloud-native solutions and reusable infrastructure components that support long-term technical…
Added 6 hours ago
Virtual Sales Engineer - West
Leybold USA Inc
Denver, CO
Added 9 hours ago
M
Principal Software Engineer - AI Experiences, Monetization
Microsoft
WA · CA · Redmond, WA · Mountain View, CA · Redmond · Mountain View
- $142,800 to $304,200 USD / year
The Principal Software Engineer will lead the design and implementation of high-impact features and platform investments, and own them from data model and service design through deployment…
Added 9 hours ago
M
Principal Software Engineer
Microsoft
United States
- $142,800 to $304,200 USD / year
The Azure Event Grid engineering team is seeking a talented and highly motivated Principal Software Engineer to lead the design and implementation of the next generation of PubSub…
Added 12 hours ago
Sr. Solutions Architect/Sales Engineer-AI Infrastructure (GPU) -West Coast
Liqid
Remote, United States
The right person can whiteboard a GPU inference cluster with a customer’s principal engineer, run a disciplined PoC against agreed success criteria, and translate the technical outcome into…
Added 12 hours ago
Sr. Solutions Architect/Sales Engineer-AI Infrastructure (GPU) -West Coast
Liqid
Remote, United States
The right person can whiteboard a GPU inference cluster with a customer’s principal engineer, run a disciplined PoC against agreed success criteria, and translate the technical outcome into…
Added 16 hours ago
F&
Engineering Principal
Fitzemeyer & Tocci
Portsmouth, NH
- $190,000 to $250,000 USD / year
Engineering Principal – Business Development & Market Growth
Added 17 hours ago
JA
Engineer Avionics
JetBlue Airways Corporation
Orlando, FL · Long Island City, NY
- $72,000 to $118,400 USD / year
The Engineer reports to the Manager of Engineering and plays a key role in developing and implementing in-service modifications, repairs and other solutions aimed at enhancing aircraft…
Added 17 hours ago
Principal Software Development Engineer
Waters Corporation
Milford, MA
Our team understands the value of their work in the real world. As a DevOps Principal Engineer in Milford, MA you'll be working with technology used for quality testing and the development…
Added 17 hours ago
VC
Principal Architect - Sales Engineer
Verizon Communications, Inc.
Blue Bell, PA
- $124,500 to $239,000 USD / year
…delivery and product teams. 6. Building and communicating the value proposition with client executives and key partners. What we're looking for... You appreciate how technology can…
Added 17 hours ago
VC
Principal Architect - Sales Engineer
Verizon Communications, Inc.
King of Prussia, PA
- $124,500 to $239,000 USD / year
…delivery and product teams. 6. Building and communicating the value proposition with client executives and key partners. What we're looking for... You appreciate how technology can…
Added 17 hours ago
Principal Electrical Engineer
Gardner Cryogenics
Allentown, PA
Added 17 hours ago
Principal Systems Engineer - P5
Boston Scientific
Maple Grove, MN
Boston Scientific is seeking a highly motivated and experienced Principal Systems Engineer - P5 to provide technical leadership in the development of complex medical device systems within…
Added 17 hours ago
Principal Systems Integration & Test Engineer - P5
Boston Scientific
Maple Grove, MN
Boston Scientific is seeking a highly motivated and experienced Principal Systems Engineer to provide technical leadership for the development of complex medical device systems within the…
Added 17 hours ago
Principal Identity Security Engineer - Privileged Access Management (PAM)
Boston Scientific
Arden Hills, MN
We are seeking a Principal Identity Security Engineer specializing in Privileged Access Management (PAM) to provide advanced technical leadership in the architecture, engineering, security…
Added 18 hours ago
Principal Engineer - Vehicle Engineering (MS/PhD)
Exponent Inc.
Menlo Park, CA
We are currently seeking a Principal Engineer for our Vehicle Engineering Practice in Menlo Park, CA; Los Angeles, CA; Irvine, CA; Farmington Hills, MI; Warrenville, IL; Chicago, IL;…
Added 18 hours ago
Principal Reverse Engineer
Nightwing Intelligence Solutions, LLC
AL-3443: 3443 Aerobee Road Redstone Arsenal, AL · Wright-Patterson AFB, OH
We seek a qualified, experienced engineer that can perform vulnerability research, reverse engineering, and tool development for complex systems.
Added 18 hours ago
F
Principal Engineer - Land
Fugro
Walnut Creek, CA
- $170,000 to $225,000 USD / year
…cost-effective infrastructure and development projects. The Principal Engineer serves as a senior technical leader responsible for the strategic direction, technical excellence, and…
Added 18 hours ago
Principal Infrastructure Engineer - Public Cloud Storage
Wells Fargo Bank, N. A.
IRVING, TX · CHANDLER, AZ · CHARLOTTE, NC · MINNEAPOLIS, MN
Wells Fargo is seeking a Storage Engineer in the Public Cloud Storage space to lead the design, engineering, automation, and adoption of cloud-based storage services with a primary focus on…
Added 18 hours ago
Principal Cybersecurity Incident Response Engineer
Wells Fargo Bank, N. A.
CHANDLER, AZ · CHARLOTTE, NC
Wells Fargo is seeking a Principal Engineer in Technology as part of Cybersecurity. Learn more about the career areas and lines of business at wellsfargojobs.com.

Amazon

Software Development Engineer II, Efficiency & Performance, Alloy

Seattle, WA, United States

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Job details

Posting language: English
Posted: Oct 30, 2026

Original job description

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
Problem solving
Communication skills
Process improvement
C#
C++
Oracle Java
Perl
Computer science
Recruitment
Mental health

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