Jobs in the United States

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Added 48 mins ago
Software Development Engineer, WW Stores FinTech
Amazon.com Services LLC
Seattle, WA
- 3+ years of non-internship professional software development experience
Added 56 mins ago
2027 Summer Internship: Software Developer
PACCAR
Denton, TX
Peterbilt Motors Company, a PACCAR Company, has an internship for students currently enrolled in college. This opening is for a Software Developer Intern to add to our Peterbilt Application…
Added 1 hour ago
2027 Summer Internship: Design Engineer- Autonomous Vehicle Platform
PACCAR
Denton, TX
Peterbilt Motors Company, a PACCAR Company, has an opening for a Mechanical, Electrical or Software Engineering Intern to add to our Autonomous Vehicle Platform team in Denton, Texas.
Added 1 hour ago
Internship - Electrical Engineer
ASML US, LP. (US30)
Wilton, CT
…multidiscipline project team working on the electrical infrastructure, engineering analysis and generation of electronic…
Added 1 hour ago
AU
Coop - Mechatronics Engineer (Internship)
ASML US, LP. (US30)
Wilton, CT
- $18 to $48 USD / hour
As our analysis needs evolve, these engineering tools need to evolve with them. Many have been developed and extended over time by different engineers, which means that understanding the…
Added 1 hour ago
IC
Server Architect
Intel Corporation
OR · MA · CA · TX · AZ
- $141,910 to $269,100 USD / year
- Define and document CPU architecture specifications to ensure modularity, scalability, and alignment with hardware and software requirements.
Added 1 hour ago
Software Development Engineer, AWS EC2 Nitro Team
Amazon Development Center U.S., Inc.
Santa Clara, CA
- 3+ years of non-internship professional software development experience
Added 1 hour ago
Software Development Engineer, AWS EC2 Nitro Team
Amazon Development Center U.S., Inc.
Santa Clara, CA
- 3+ years of non-internship professional software development experience
Added 1 hour ago
Software Development Engineer, AWS EC2 Nitro Team
Amazon Web Services, Inc.
Santa Clara, CA
- 3+ years of non-internship professional software development experience
Added 1 hour ago
Software Development Engineer, AWS EC2 Nitro Team
Amazon.com Services LLC
Santa Clara, CA
- 3+ years of non-internship professional software development experience
Added 2 hours ago
2027 Associate Structural Engineer / Structural Engineer - Huntsville AL
Northrop Grumman
Huntsville
…simulation, integrated battle command systems, advanced weapons, and software development and IT modernization and sustainment, focused on dynamic mission-sets with quick-turn requirements…
Added 2 hours ago
NG
Engineering Software and Analysis Intern
Northrop Grumman
Sunnyvale
- $21.5 to $48 USD / hour
Northrop Grumman is seeking Engineering Software and Analysis Interns for an internship opportunity. This position will be located at our Mission Systems sector in Sunnyvale, CA.
Added 2 hours ago
2027 Associate Systems Engineer - San Diego CA
Northrop Grumman
San Diego
Working within a multi-discipline (Hardware, Software, Cyber, Systems) team to ensure the complete, overall design and implementation of cutting-edge network and communication systems
Added 2 hours ago
NG
2027 Engineering Intern (Software/Mission Assurance/Quality) - Chandler AZ
Northrop Grumman
Chandler
- $18.5 to $41.5 USD / hour
Northrop Grumman is seeking Engineers for an internship opportunity in Software developer/programmer, Mission Assurance, Quality Engineering and/or metrology. This position will be located…
Added 2 hours ago
Integration & Test - Mechanical Engineering Intern [Winter 2027]
Figure
San Jose, CA
We are looking for a Mechanical Engineering Intern for Winter 2027 to support the design, build, and testing of prototype hardware across our integration and test teams. This internship is…
Added 2 hours ago
HD
IT Intern
Heroux Devtek
Livonia, MI
- $19 to $22 USD / hour
A paid internship at $19–$22 per hour, based on relevant skills and experience.
Added 2 hours ago
Stress Engineer I
Airbus Americas, Inc.
Wichita, KS
Internship in the aerospace engineering field with airframe experience
Added 2 hours ago
Process Engineer 2 - Mechanical Assembly Team
Garmin International, Inc.
Olathe, KS
…this role, you will be responsible for utilizing expert CAD software skills to model complex tools and develop complex process instructions under the supervision of management or a mentor.…
Added 2 hours ago
VM
2027 Summer Intern - Systems Engineer - Instrument Development
Ventana Medical Systems, Inc.
United States
- $25 to $46 USD / hour
This internship offers the opportunity to gain hands-on experience in engineering projects, applying classroom knowledge in real-world scenarios.
Added 2 hours ago
Systems Engineering Intern, BMC2 (Onsite)
RTX
United States
We are seeking a motivated and innovative Systems Engineering Intern to join our Systems Excellence Department at our St. Petersburg, FL location. As an intern, you will be instrumental in…
Added 2 hours ago
Software Development Engineer, Promotions Calculations Lifecycle (PCL)
Amazon.com Services LLC
Seattle, WA
We are looking for a Software Development Engineer II (SDE II) to own the design, build, and operation of services on this critical path. You will work on high-throughput, low-latency…
Added 2 hours ago
2027 Associate Systems Engineer - San Diego CA
CORP-Corporate Office
United States
Working within a multi-discipline (Hardware, Software, Cyber, Systems) team to ensure the complete, overall design and implementation of cutting-edge network and communication systems
Added 2 hours ago
Structural Engineering Intern - Summer 2027
STV Incorporated
Austin, TX
STV is seeking an enthusiastic and motivated Structural Engineering Intern to join our team. This internship offers an opportunity for undergraduate and graduate-level candidates to work…
Added 2 hours ago
Sr. Software Engineer (Starlink Enterprise)
SpaceX
Palo Alto, CA
Bachelor's degree in computer science, engineering, or a STEM discipline and 5+ years of experience building full-stack software; OR 7+ years of professional experience building full-stack…
Added 2 hours ago
Software Engineer (Starlink Enterprise)
SpaceX
Palo Alto, CA
Bachelor's degree in computer science, engineering, or a STEM discipline and 1+ years of experience building full-stack software; OR 3+ years of professional experience building full-stack…

Amazon.com Services LLC

Software Development Engineer II, Efficiency & Performance, Alloy, Region Flex Efficiency

Sunnyvale, CA, United States

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Job details

Posting language: English
Posted: Nov 2, 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.

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.

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.

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 full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience
1+ years of programming using a modern programming language such as Java, C++, or C#, including object-oriented design experience
Bachelor's degree or foreign equivalent in Computer Science, Engineering, Mathematics, or a related field 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
Knowledge of system performance, memory management, and parallel computing principles

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

Los Angeles County applicants: Job duties for this position include: work safely and cooperatively with other employees, supervisors, and staff; adhere to standards of excellence despite stressful conditions; communicate effectively and respectfully with employees, supervisors, and staff to ensure exceptional customer service; and follow all federal, state, and local laws and Company policies. Criminal history may have a direct, adverse, and negative relationship with some of the material job duties of this position. These include the duties and responsibilities listed above, as well as the abilities to adhere to company policies, exercise sound judgment, effectively manage stress and work safely and respectfully with others, exhibit trustworthiness and professionalism, and safeguard business operations and the Company’s reputation. Pursuant to the Los Angeles County Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.

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, CA, Sunnyvale - 165,200.00 - 223,600.00 USD annually

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