Jobs in the United States

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Added 21 mins ago
Senior Staff Security Engineer, Google Distributed Cloud
Google
Sunnyvale, CA · Kirkland, WA · Seattle, WA
Lead complex security incident response efforts, conduct root-cause analyses, and implement scalable remediation strategies to protect the integrity of GDC infrastructure.
Added 22 mins ago
Cloud Engineer SME
Ignite IT
Remote, United States
We are seeking a highly skilled Cloud Engineer Subject Matter Expert (SME) to join our team. The Senior Cloud Engineer (Cloud Engineer SME) is the senior technical implementation lead…
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 Network Security Engineer
Ignite IT
Remote, United States
We are seeking a Senior Network Security Engineer for an operations-first role supporting enterprise network security infrastructure across on-premises, remote-access, hybrid-cloud, and…
Added 22 mins ago
Senior Identity Engineer
Ignite IT
Remote, United States
Ignite IT is seeking an experienced Senior Identity and Access Management (IAM) Engineer to support enterprise identity and directory services for the U.S. Census Bureau.
Added 22 mins ago
Senior Linux Administrator
Ignite IT
Remote, United States
Ignite IT is seeking a very experienced, senior-level Red Hat Linux Admin/Engineer to join and provide dedicated support to the Unix Management Branch of the Computer Services Division on…
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
…at the intersection of distributed systems, machine learning infrastructure, and science to bring frontier research - especially in post-training and reinforcement learning - into…
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
Cybersecurity Team Lead
SAIC
Huntsville, AL
Previous experience as a Cybersecurity Team Lead, ISSO, ISSM, or senior cybersecurity engineer supporting DoD authorization activities.
Added 42 mins ago
Senior Software Engineer
Jobgether
Remote, United States
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Software Engineer based in the United States.
Added 42 mins ago
Enior Project Engineer - Midwest
Jobgether
Remote, United States
…all applications and next steps. Our partner is looking for a Senior Project Engineer - Midwest based in the United…
Added 47 mins ago
AI Engineer I
Midwest Physicians Administrative Services, LLC dba Duly Health and Care
Downers Grove, IL
The AI Engineer I is an early-career role within the Data & Analytics team, working with the AI/ML team to implement, deploy, and support the AI platforms and models that improve patient…
Added 50 mins ago
Senior Software Engineer, AI/ML NLP, Deep Learning, Search Infrastructure
Google
Mountain View, CA
3 years of experience with end-to-end Machine Learning infrastructure (e.g., model deployment, model evaluation, optimization, data processing, debugging).
Added 53 mins ago
DISTINGUISHED SCIENTIST/ENGINEER FOR ELECTRO-OPTIC/INFRARED SENSOR TECHNOLOGIES
Naval Sea Systems Command
Crane, IN
Added 1 hour ago
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Senior Transportation Project Engineer
GPAC
Columbus, OH
- $100,000 to $140,000 USD / year
A people-first engineering firm is seeking a Senior Transportation Engineer (PE) to lead the design and delivery of impactful roadway and infrastructure projects.
Added 1 hour ago
G
Senior Transportation Project Engineer
GPAC
Dallas, TX
- $100,000 to $140,000 USD / year
A people-first engineering firm is seeking a Senior Transportation Engineer (PE) to lead the design and delivery of impactful roadway and infrastructure projects.
Added 1 hour ago
H
Senior/Staff Physical Verification and PDK Engineer
HyperLight
Remote, United States
- $150,000 to $225,000 USD / year
Our growing team is looking for a Senior/Staff Physical Verification and PDK Engineer to own physical verification and design enablement for our most advanced heterogeneous integration…
Added 1 hour ago
G
Senior Transportation Project Engineer
GPAC
New York, NY
- $100,000 to $140,000 USD / year
A people-first engineering firm is seeking a Senior Transportation Engineer (PE) to lead the design and delivery of impactful roadway and infrastructure projects.
Added 1 hour ago
Vice President, Cloud Platform Engineer
SAMC SitusAMC Holdings Corp
Remote, United States
…Docker, Kubernetes, and familiar with Git development. The Engineer is expected to provide strategy and implement enterprise-scale automation for scalability, performance, security, and…
Added 1 hour ago
J
SR R&D/PRODUCT DVL ENGINEER
Jobgether
Remote, United States
- $115,000 to $145,000 USD / year
The Senior R&D/Product Development Engineer will drive the electrical design, simulation, and validation of high-speed connectivity products for data centers and wireless infrastructure. As…
Added 1 hour ago
Senior Software Engineer, Atlas Agent Engine
Jobgether
Remote, United States
As a Senior Software Engineer, you will play a key role in building and scaling an innovative AI agent development platform designed for enterprise environments. You will contribute to the…
Added 1 hour ago
J
Senior Data Engineer, Ads Data (AI Native)
Jobgether
Remote, United States
- $129,000 to $192,000 USD / year
…protected through innovative digital products and services. As a Senior Data Engineer, you will take ownership of critical data infrastructure supporting advertising analytics, campaign…
Added 1 hour ago
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Professional Engineer Water/Waste Water
GPAC
Bozeman, MT
- $69,000 to $113,000 USD / year
We are seeking a Water/Wastewater Engineer to join a growing, multi-disciplinary engineering consulting firm. This individual will contribute to the planning, design, and delivery of…
Added 1 hour ago
Vice President, Facilities Management
Navy Federal Credit Union
Vienna, VA
Direct enterprise capital planning, prioritization, forecasting, and execution for facility modernization, infrastructure, renovations, campus improvements, and other facilities-related…

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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