Jobs in the United States

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Added 4 mins ago
Senior Systems Administrator (Government)
AT&T Technical Services Company, Inc.
Remote, United States
AT&T has an opening for a Senior System Administrator to support operations by maintaining, documenting, and administering enterprise IT systems.
Added 9 mins ago
TT
Senior Software Engineer, Autonomous Systems
True Talent Solutions Partners
Palo Alto, CA
- $145,000 to $275,000 USD / year
Join a customer-facing product engineering team building command-and-control and autonomous systems software for operational and tactical missions. You will develop cloud and edge services…
Added 10 mins ago
Associate Vice President, Engineering – DCE Connectivity Hardware
MSI - (Marvell Semiconductor Inc.) US
Santa Clara, CA
Build, develop, and retain a world-class engineering team; mentor senior engineers and directors toward technical and leadership excellence
Added 13 mins ago
Senior Principal Systems Engineer (Electromagnetic Environmental Effects (E3))
CORP-Corporate Office
United States
…E3 requirements into total system solutions that account for technical, schedule, and cost constraints. Overall, your responsibilities will include functional analysis, timeline analysis,…
Added 21 mins ago
SA
Senior Staff Engineer, Supply Chain (R6485)
Shield AI
Dallas, TX
- $177,000 to $266,000 USD / year
Engineering Technical Support: Provide technical guidance to suppliers on part specifications, manufacturing processes and standards, and quality measures
Added 21 mins ago
SA
Senior Sourcing Specialist (R6598)
Shield AI
Dallas, TX · Seattle, WA
- $92,000 to $167,000 USD / year
We're looking for a Senior Sourcing Specialist to help bring innovative products to life by leading supplier purchasing initiatives and building high-performing supplier partnerships.…
Added 22 mins ago
Senior Level Developer
Ignite IT
Remote, United States
The Senior-Level Developer serves as a technical modernization leader responsible for designing, refactoring, and implementing AWS Cloud Native solutions as part of a large-scale legacy…
Added 22 mins ago
Senior AI/ML Engineer
Ignite IT
Remote, United States
Ignite IT Hub is seeking a senior AI/ML Engineer to maintain and enhance the U.S. Census Bureau's LLM Autocoder, which assigns standardized codes to survey write-in responses. You will…
Added 22 mins ago
Full Stack Developer (Python / Java / Angular / AWS)
Ignite IT
Remote, United States
Ignite IT is seeking a Senior Full Stack Developer to support the U.S. Customs and Border Protection (CBP) in developing and modernizing enterprise applications that improve operational…
Added 22 mins ago
Senior UI/UX Development Designer (US Citizen Required)
Ignite IT
Remote, United States
…while modernizing enterprise systems and applications needed to support the men and women charged with safeguarding the American people and enhancing the Nation’s safety, security, and…
Added 22 mins ago
Tier 2 Desk Side Support Specialist
Ignite IT
Washington, DC
Ignite IT is seeking a Tier 2 Desk Side Support IT Specialist to provide mid-to-senior level technical and administrative support for IT operations in Washington, DC. This position combines…
Added 22 mins ago
Senior Systems Engineer
IESE Solutions
El Segundo, CA
IESE Solutions is seeking a Systems Engineer to support the U.S. Space Forces mission of delivering warfighter capability via the Space Systems Command (SSC) directorates. Position is…
Added 22 mins ago
Senior Ground Segment Systems Engineer
IESE Solutions
El Segundo, CA
IESE Solutions is seeking an experienced Senior Ground Segment Systems Engineer to support to the US Space Force (USSF) in developing, deploying, and sustaining a National Security Space…
Added 29 mins ago
Senior Software Development Engineer , Stores Foundational AI - Rufus
Amazon.com Services LLC
Seattle, WA · Palo Alto, CA
Raise the engineering bar through technical leadership, design reviews, and mentorship, influencing best practices across the organization
Added 32 mins ago
Senior IT Manager - Software Engineering and Enterprise Solutions
Progress Rail Services Corp.
Albertville, AL
Strong enterprise software and systems-integration background, with the technical aptitude to challenge architecture decisions, understand tradeoffs, and guide modernization without needing…
Added 32 mins ago
Senior Azure/AWS Cloud Engineer (5539)
SMX
Huntsville, AL
SMX is actively searching for a dynamic and adept Senior Azure/AWS Cloud Engineer to support our government client in Huntsville, AL.
Added 32 mins ago
Senior Welder / Electron Beam Welder
Insight Global
Huntsville, AL
Insight Global is hiring a Senior Welder to support advanced manufacturing operations for a leading aerospace and defense organization. This individual will perform precision welding on…
Added 32 mins ago
Cybersecurity Team Lead
SAIC
Huntsville, AL
Support security requirements for classified, restricted, and air-gapped environments, including approved software artifact movement and secure integration between environments.
Added 37 mins ago
SA
Senior Sales Analytics Consultant - Southwest Business
Southwest Airlines Co.
Dallas, TX
- $125,900 to $139,900 USD / year
As a Senior Sales Analytics Consultant supporting Southwest Business, you’ll help shape how Southwest turns Customer data into scalable strategies that grow corporate travel revenue and…
Added 42 mins ago
Test Manager (SAP S/4HANA Transformation)
Jobgether
Remote, United States
The ideal candidate brings extensive software testing and test management experience, including direct leadership of a complete SAP S/4HANA transformation testing lifecycle. They should…
Added 42 mins ago
Senior Software Engineer
Jobgether
Remote, United States
The Senior Software Engineer will play a key role in designing, developing, and maintaining scalable software solutions within a multi-tenant SaaS environment. This position focuses on…
Added 42 mins ago
Senior Embedded Linux BSP Engineer – Qualcomm QCS / Camera & Multimedia
Jobgether
Remote, United States
The Senior Embedded Linux BSP Engineer will play a key role in developing and integrating embedded software for advanced Qualcomm-based hardware platforms. This position focuses on Board…
Added 42 mins ago
Enior Project Engineer - Midwest
Jobgether
Remote, United States
As a Senior Project Engineer, you will provide technical guidance and engineering support across project development and execution, ensuring that designs meet project requirements and…
Added 45 mins ago
IE
Senior Software Developer - Forward Deployed Model
Idea Entity
Remote, United States
- $110,000 to $170,000 USD / year
We are looking for an experienced Senior Software Developer to design, build, test, deploy, and support scalable software solutions that solve complex customer problems.
Added 47 mins ago
Data Engineer I
Midwest Physicians Administrative Services, LLC dba Duly Health and Care
Downers Grove, IL
…reporting, and AI across the enterprise. Working alongside senior engineers and architects, this position contributes to the organization's cloud data platform, including data ingestion,…

Amazon.com Services LLC

Senior Software Development Engineer , Stores Foundational AI - Rufus

Seattle, WA, United States
Palo Alto, CA, United States

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Job details

Posting language: English
Posted: Jun 29, 2026

Original job description

We are building foundational LLMs for Amazon Stores that fuse world knowledge with deep e-commerce understanding to power next-generation shopping experiences. These systems continuously learn from real-world customer interactions to become more helpful, personalized, and context-aware over time.

We are looking for builders who are passionate about large-scale systems, AI innovation, and customer impact. You will work at the intersection of distributed systems, machine learning infrastructure, and science to bring frontier research - especially in post-training and reinforcement learning - into production at Amazon scale.

Key job responsibilities

Architect and build scalable ML infrastructure powering LLM training and post-training workflows, including supervised fine-tuning, reinforcement learning, and continuous learning from live traffic
Transform real-world customer interactions into high-quality training signals, enabling continuous model improvement and better customer experiences
Build and optimize post-training and RL systems, including reward modeling, policy optimization, data collection loops.
Drive experimentation and iteration velocity by building tooling and frameworks that enable rapid hypothesis testing, signal validation, and model quality improvements
Partner closely with applied scientists to translate frontier techniques (e.g., RLHF, agentic workflows, multi-turn optimization) into reliable, production-grade systems
Own systems end-to-end, including design, implementation, deployment, observability, and operational excellence
Raise the engineering bar through technical leadership, design reviews, and mentorship, influencing best practices across the organization Basic qualifications
5+ years of non-internship professional software development experience
5+ years of programming with at least one software programming language experience
5+ years of leading design or architecture (design patterns, reliability and scaling) of new and existing systems experience
Experience as a mentor, tech lead or leading an engineering team
Experience with vLLM, SGLang, TensorRT or similar platforms in production environments
Experience with CUDA kernels or ML/low-level kernels Preferred qualifications
5+ 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
Experience with Machine Learning and Large Language Model fundamentals, including architecture, training/inference lifecycles, and optimization of model execution

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, Palo Alto - 193,300.00 - 261,500.00 USD annually USA, WA, Seattle - 168,100.00 - 227,400.00 USD annually

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