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QA Tester - Mid-Level
ManpowerGroup
Austin, TX
- $45 to $48 USD / hour
…the Quality Assurance (QA) organization supporting the mobile testing team. The ideal candidate will have a strong drive for quality, hands-on experience with mobile test automation, and…
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Senior Quality Engineering Automation Engineer
Cognizant
Austin, TX
- $53,477 to $92,500 USD / year
…make an impact by designing and maintaining scalable automated testing solutions for web-based applications. You will be a valued member of the Quality Engineering team and work…
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SDET / QA Automation Engineer – Playwright, Selenium, Java & Functional Testing
Cognizant
Austin, TX
- $53,000 to $92,500 USD / year
We are seeking a highly skilled SDET / QA Automation Engineer – Playwright, Selenium, Java & Functional Testing to join our Quality Engineering team supporting enterprise healthcare…
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Software Engineer Lead - Mortgage Platforms
United Services Automobile Asn
United States
…customization strategies, ongoing maintenance/support, and end to end testing/quality…
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Frontier Engineer (AI/Agentic)
Cognizant
Austin, TX
- $100,000 USD / year
Contribute to knowledge and context systems, retrieval workflows, testing, deployment, monitoring, documentation, and operational support.
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Peoplesoft Developer
Eliassen Group
Austin, TX
- $107,000 to $159,390 USD / year
Our client seeks a Peoplesoft Developer to design, develop, test, implement, document, and support enterprise systems and technologies. The role leads small projects, collaborates with…
Added 1 min ago
Senior Engineering Manager, Protect
SoFi Tech Solutions
Seattle, WA
Champion operational excellence, establishing robust automated testing, observability (logging, metrics, tracing), and incident mitigation practices across all team services.
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Software Engineer III
Walmart Inc.
Sunnyvale, CA
- $150,080 to $234,000 USD / year
Skills Required: Must have experience with: Designing and developing applications using Java Object Oriented Programming; Implementing frameworks like Spring and Hibernate; Developing CI/CD…
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Software Engineer III
Walmart Inc.
Sunnyvale, CA
- $150,080 to $234,000 USD / year
…tasks in CI/CD (Continuous Integration/Continuous Delivery), Testing or any other process (as applicable). Implement telemetry features as required independently. Ensure security policy…
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Senior Software Engineer
Walmart Inc.
Sunnyvale, CA
- $150,080 to $234,000 USD / year
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Software Engineer III
Walmart Inc.
Sunnyvale, CA
- $117,000 to $234,000 USD / year
…using React.js and Material UI component library. Experience testing and troubleshooting applications with test driven development using Jest, Enzyme and Chai frameworks. Experience…
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Senior Software Engineer
Walmart Inc.
Sunnyvale, CA
- $150,080 to $234,000 USD / year
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Staff Software Engineer
Walmart Inc.
Sunnyvale, CA
- $185,587 to $286,000 USD / year
…defects for the component or module and carry out regression testing to fix defects in all instances of code changes. Analyze defects from past software engineering solutions to avoid…
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Principal Software Engineer
Walmart Inc.
Sunnyvale, CA
- $255,653 to $286,000 USD / year
Duties: Drive the design, development, and deployment of complex, distributed enterprise applications using Java. Architect scalable and secure software systems, ensuring alignment with…
Added 2 mins ago
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Staff Data Engineer
Sam's West, Inc.
Sunnyvale, CA
- $212,326 to $286,000 USD / year
…with final designs. Identifies and recommends the appropriate testing methodology. Identifies the environment(s) for deployment. Identifies and recommends modifications of application based…
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Staff Software Engineer
Walmart Inc.
Sunnyvale, CA
Skills required: Experience designing and implementing REST API web services using Java and Typescript. Experience building scalable micro services, using REST and GraphQL. Experience…
Added 2 mins ago
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Staff Software Engineer
Walmart Inc.
Sunnyvale, CA
- $150,080 to $286,000 USD / year
…defects for the component or module and carry out regression testing to fix defects in all instances of code changes. Analyze defects from past software engineering solutions to avoid…
Added 2 mins ago
WI
Senior Software Engineer
Walmart Inc.
Sunnyvale, CA
- $187,075 to $234,000 USD / year
Skills required: Experience designing and implementing REST API web services using Java and Spring Boot framework and Coding in object-oriented programming languages including Java with…
Added 2 mins ago
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Senior Software Engineer
Walmart Inc.
Sunnyvale, CA
- $150,080 to $234,000 USD / year
Skills required: Experience designing and implementing REST API web services using Java. Experience coding in object-oriented programming language including Java. Experience testing and…
Added 3 mins ago
Software and Systems Integration Engineer
Booz Allen Hamilton_United States
Dahlgren, VA
5+ years of experience developing, integrating, testing, or sustaining software systems
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Full Stack Developer
Booz Allen Hamilton_United States
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As a full-stack developer, you can resolve a problem with a complete end-to-end solution in a fast, agile environment. If you’re looking for the chance to not just develop software, but to…
Added 8 mins ago
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Custom Software Engineer - 6522227
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United States
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…content fragments and digital asset management Proficient in Core Java Spring Boot JavaScript HTML and CSS with expertise in building scalable and maintainable web applications Design…
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Software Engineer III - Agentic Data Quality Platform
JPMC page
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…documentation), while validating outputs through peer review, automated testing, and secure coding…
Added 9 mins ago
Software Engineer
SelectHealth Inc
United States
…requirements definition, prototyping, detailed design, coding, testing, deployment, and support of the day-to-day operation of production systems. The Tech Lead Software Engineer is…
Added 11 mins ago
UG
Software Engineer
UnitedHealth Group
Eden Prairie, MN
- $72,800 to $130,000 USD / year
Lead delivery across the full software development lifecycle (SDLC), including design, development, testing, deployment, and production support for enterprise applications

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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