Jobs in the United States

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Added 3 mins ago
Software Engineer - Agentic Reliability Infrastructure (Technical Leadership)
Meta
Charleston, WV
Meta is seeking an experienced Software Engineer to build the next generation of AI systems for production reliability. This role sits at the intersection of large-scale distributed…
Added 3 mins ago
Senior Staff Security Engineer, Google Distributed Cloud
Google
Sunnyvale, CA · Kirkland, WA · Seattle, WA
Drive the long-term security strategy and roadmap for large-scale distributed systems, proactively identifying and mitigating systemic risks and complex architectural vulnerabilities.
Added 11 mins ago
Senior Software Development Engineer , Stores Foundational AI - Rufus
Amazon.com Services LLC
Seattle, WA · Palo Alto, CA
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…
Added 24 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 33 mins ago
Senior Software Engineer, AI/ML NLP, Deep Learning, Search Infrastructure
Google
Mountain View, CA
…fresh ideas from all areas, including information retrieval, distributed computing, large-scale system design, networking and data storage, security, artificial intelligence, natural…
Added 57 mins ago
J
Staff Data Scientist
Jobgether
Remote, United States
- $123,804 to $185,700 USD / year
…technologies, including precision agriculture, automation, autonomous systems, and digital products. You will lead a team of data scientists while remaining hands-on in developing machine…
Added 57 mins 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
Executive Vice President, Integrated Air and Missile Defense
Astrion
Huntsville, AL
Astrion brings deep experience in threat modeling, modeling and simulation, systems engineering, integration, acquisition, and test and evaluation. Our people understand the missions, the…
Added 1 hour ago
Vice President, Facilities Management
Navy Federal Credit Union
Vienna, VA
…maintenance, capital planning, construction/project delivery, building systems performance, emergency readiness, sustainability, contract services, and long-term asset stewardship in…
Added 1 hour ago
Application Engineer, Enterprise Deployment - Finance
MathWorks
Natick, MA
…platforms, automated software development processes, and production systems. As an Application Engineer, you will work with quantitative teams, software engineers, platform engineers, and…
Added 1 hour ago
Senior Software Engineer, GenAI Evaluation
Google
New York, NY
3 years of experience developing large-scale infrastructure, distributed systems or networks, or experience with compute technologies, storage or hardware architecture.
Added 1 hour ago
Software Engineer - Agentic Reliability Infrastructure (Technical Leadership)
Meta
Columbia, SC
Meta is seeking an experienced Software Engineer to build the next generation of AI systems for production reliability. This role sits at the intersection of large-scale distributed…
Added 1 hour ago
Principal Software Engineer, Cloud Infrastructure
NVIDIA USA
CA
…GPUs, DPUs, high-speed networking, storage, and rack-scale systems. Platforms include Grace Blackwell and Vera Rubin. In this senior individual contributor role, you will combine hands-on…
Added 2 hours ago
Lead Data Engineer
Honeywell Technologies
Atlanta, GA
…the data that powers that future starts here. As a Lead Data Engineer on our Industrial AI & Data Platforms team, you will architect and own the data foundations that enable physical AI at…
Added 2 hours ago
Principal Systems Software Engineer
NetApp, Inc.
Morrisville, NC · San Jose, CA
We are seeking Senior, Principal and Distinguished Engineers and Technical Leaders to help architect, design, and build technologies that will evolve ONTAP for the AI era. You will solve…
Added 2 hours ago
Software Engineer
Inkit
Saint Paul, MN
We are seeking an experienced Senior Software Engineer to join our team to architect, develop, and enhance our secure document generation platform. The ideal candidate will demonstrate…
Added 2 hours ago
Principal Systems Software Engineer
NetApp
Durham · San Jose
We are seeking Senior, Principal and Distinguished Engineers and Technical Leaders to help architect, design, and build technologies that will evolve ONTAP for the AI era. You will solve…
Added 2 hours ago
SI
Lead Software Engineer, AI Workflow Generation (Agentforce Operations)
Salesforce, Inc.
CA
- $172,500 to $285,800 USD / year
Spearhead architectural decisions for distributed systems serving millions of users with 24/7 availability
Added 2 hours ago
SI
Senior Software Engineer, Human Agent Interfaces (HAI)
Salesforce, Inc.
CA
- $148,500 to $246,000 USD / year
You have experience building and operating distributed systems or SaaS applications on a public cloud.
Added 2 hours ago
SI
Senior Software Engineer, Human Agent Interfaces (HAI)
Salesforce, Inc.
CA
- $148,500 to $246,000 USD / year
You have experience building and operating distributed systems or SaaS applications on a public cloud.
Added 3 hours ago
J
Senior Software Engineer
Jobot
New York, NY
- $150,000 to $200,000 USD / year
Senior Software Engineer | Building the Future of AI-Powered Identity & Digital Trust | Go, TypeScript, AI Agents | NYC / SF
Added 3 hours ago
J
Senior Software Engineer
Jobot
San Francisco, CA
- $150,000 to $200,000 USD / year
Senior Software Engineer | Building the Future of AI-Powered Identity & Digital Trust | Go, TypeScript, AI Agents | NYC / SF
Added 3 hours ago
Senior Specialist, Software Engineering (DevOps Engineer)
L3Harris
Colorado Springs, CO
Collaborate with application and systems architects to implement scenario-time control, state capture and restoration, and replay across distributed services.
Added 3 hours ago
Integration Engineer, Fluid Systems Test
Vast
Long Beach, CA
Vast is looking for an Integration Engineer, Fluid Systems Test, to help develop the systems behind our human-rated space stations. You will drive the development and execution of…
Added 3 hours ago
Integration Engineer, Avionics Test
Vast
Long Beach, CA
Vast is looking for an Integration Engineer, Avionics Test, to help develop the systems behind our human-rated space stations. You will drive the development and execution of human-rated…

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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