Jobs in the United States

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Added 1 min ago
Principal Engineer II - Data Engineering
TMS Toyota Motor Sales, USA, Inc. Company
Plano, TX
Toyota's Digital Innovations group within TMNA's Supply Chain organization is seeking a highly experienced Principal Engineer II, Data Engineering to lead the technical strategy and…
Added 4 mins ago
Mechanical / Manufacturing Engineer
Albany, OR
We are seeking a motivated Mechanical/Manufacturing Engineer to support the design, development, and manufacturing of custom mechanical components and assemblies for a diverse range of…
Added 5 mins ago
Principal CI/CD Engineer
MIPS Holding Inc
United States
GlobalFoundries is seeking a highly experienced Senior/Principal Continuous Integration and Continuous Delivery (CI/CD) Engineer to lead the strategy, design, implementation, and evolution…
Added 6 mins ago
Senior Mechanical Engineer
Sargent & Lundy
Chicago, IL
In this role, you will provide development support, conceptual design and owner’s engineer services to clients including performing technical evaluations of electric power generation…
Added 6 mins ago
Senior Mechanical Engineer
Sargent & Lundy
Chicago, IL
In this role, you will provide development support, conceptual design and owner’s engineer services to clients including performing technical evaluations of electric power generation…
Added 6 mins ago
Senior Mechanical Engineer
Sargent & Lundy
Chicago, IL
In this role, you will provide development support, conceptual design and owner’s engineer services to clients including performing technical evaluations of electric power generation…
Added 6 mins ago
Senior Electrical Engineer
Sargent & Lundy
Chicago, IL
In this role, you will provide development support, conceptual design and owner’s engineer services to clients including performing technical evaluations of electric power generation…
Added 7 mins ago
Senior Systems Engineer - Windows
KēSTA I.T.
South Jordan, UT
Senior Systems Engineer / IT Infrastructure Architect
Added 7 mins ago
Sr. Contracts Specialist (Construction)
Aston Carter
Washington, DC
Prepare and process a wide range of acquisition documents for all phases of the technical evaluation of proposals received in response to solicitations.
Added 11 mins ago
QI
Director, Engineering - Transmission Line
Quanta Infrastructure Solutions Group, LLC
UNAVAILABLE, MN
- $195,000 USD / year
…use in-house talent, expertise and resources to plan, design, engineer, manage, conduct maintenance on and construct…
Added 12 mins ago
Salesforce/Applications Support Engineer
Virginia Community Colleges
VA
This position serves as an Applications Engineer within the Software Applications and Support unit of College Computing and holds primary technical responsibility for the administration,…
Added 12 mins ago
Sr Forward Deployed Engineer (FDE), AWS Forward Deployed Engineering, US Government
Amazon Web Services, Inc.
Jessup, MD · Arlington, VA · Seattle, WA · Denver, CO · Herndon, VA
A Forward Deployed Engineer (FDE) embeds directly inside a strategic enterprise customer to design, build, deploy, and run AI-powered production systems alongside the customer's engineering…
Added 12 mins ago
Senior Software Engineer, Graviton Software
Annapurna Labs (U.S.) Inc.
Austin, TX · Cupertino, CA
…other employees, supervisors, and staff; adhere to standards of excellence despite stressful conditions; communicate effectively and respectfully with employees, supervisors, and staff to…
Added 14 mins ago
On-site Customer Support Engineer
MKS2 Technologies
Portland, OR
…the security and well-being of our clients. Our commitment to excellence and our “Mission First” orientation has resulted in steady growth and an expanding client base across government…
Added 14 mins ago
HVAC Technician
Russell Stover
Corsicana, TX
…administer the HVAC service requirements and support the RSC Process Safety Management (PSM) program, playing a critical role in maintaining a safe and compliant facility. Working within…
Added 14 mins ago
A
Software Engineer - Full Stack Development
Actalent
Irvine, CA
- $70 USD / hour
Software Engineer II Next-Generation Embedded & AI-Driven Platform Development
Added 14 mins ago
Manufacturing Engineer
Actalent
Cincinnati, OH
Job Title: Manufacturing EngineerJob DescriptionThe Manufacturing Engineer develops, reviews, and optimizes manufacturing plans and CNC machining processes for highly complex, tightly…
Added 17 mins ago
A
Senior Staff Software Engineer, Backend (Compute Platform)
Affirm
Remote, United States
- $265,000 to $325,000 USD / year
…of engaging in thorough technical design review, operational excellence, and capable incident response and…
Added 20 mins ago
Lean Manufacturing Engineer - Wixom Area
The Pivot Group Network
Wixom · Wixom, MI
Process Improvement Engineer, Industrial Engineer, Lean Coordinator, Six Sigma Engineer, Production Engineer, Operations Excellence Engineer, Quality Engineer, Continuous Improvement…
Added 22 mins ago
EU
Network / System Engineer III
Experis USA
Chandler, AZ
- $65 to $70 USD / hour
Our client is seeking a Network / System Engineer III to join their team. As a Network / System Engineer III, you will be part of the Infrastructure Services organization supporting Network…
Added 23 mins ago
Manager, Strategic Account Management
Rippling
Seattle, WA · New York, NY · San Francisco, CA · Chicago, IL
…growth and retention opportunities, and foster operational excellence to achieve company targets for customer adoption, net retention, and revenue…
Added 23 mins ago
Global Supplier Quality Engineer Senior
Plexus
Buffalo Grove, IL · Buffalo Grove
About us: At Plexus, our vision is to help create the products that build a better world. Driven by a passion for excellence, we partner with leading Aerospace/Defense, Healthcare/Life…
Added 24 mins ago
SITE QUALITY MANAGER
OPMobility
Spring Hill-Tennessee, TN
Job duties: Lead, engineer, perform, and assure validation and continuous improvement of Spring Hill Plant manufacturing and assembly processes, applying QA techniques, SAP QM module, SAP…
Added 24 mins ago
Embedded Software Security Engineer I - S3E
RTX
United States
Raytheon Software Security Sensors and Effectors (S3E) Department is looking for a Software Engineer in Tucson, AZ. Our mission is to provide world class Security Software to be used in…
Added 24 mins ago
Planner Scheduler - PA Work Management - Arnold Service Center
FirstEnergy
Arnold, PA
FirstEnergy (NYSE: FE) is dedicated to integrity, safety, reliability and operational excellence. Headquartered in Akron, Ohio, FirstEnergy includes one of the nation's largest…

Amazon

Senior Software Development Engineer, Core Search

Seattle, WA, United States

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Job details

Posting language: English
Posted: Oct 15, 2026

Original job description

Description

The Amazon Search Navigation AI team helps customers go from a broad search intent to the few products that fit their needs, so they can make a confident purchase decision. We generate highly relevant, context-aware, and personalized search refinements. We also decide the order they appear in across Amazon's Search Navigation experiences, guiding customers to the most relevant results. The team owns Search Navigation's P0 metrics and defect guardrails, which keep performance and reliability high for hundreds of millions of customers.

We are reinventing search refinement with generative AI. Our recently launched Smart Refinement experience uses large language models (LLMs) served online to turn product specifications into natural-language suggestions that match how customers think, such as "for colder weather" or "lightweight for travel." Each suggestion is personalized to the customer's context. Next, we are building multi-turn, conversational refinement, where each interaction builds on the last and helps customers narrow their intent in fewer steps.

We build and run the engineering systems behind this work, including the Navigation Experience Service (NES). NES connects to Amazon's core search systems, serves more than 3 billion queries worldwide every day, and runs real-time LLM inference at global scale under strict latency and cost limits. Our platform supports launches of new navigation content and UIs, and it makes fast offline and online experimentation possible.

We are looking for a Senior Software Development Engineer to be a technical leader on the team. You will shape the architecture of our Search Navigation platform, including the systems that serve LLMs in real time, lead complex projects that span multiple teams, and work closely with Applied Scientists to take LLM innovations from research into production. You are comfortable with ambiguity, you set a high bar for engineering, and you are curious about applied science.

Key job responsibilities

Lead the architecture, design, and delivery of large-scale, distributed, low-latency services that power Amazon Search Navigation experiences worldwide
Own the technical direction for online LLM serving in Search Navigation, including GPU and accelerator inference, request-time personalization, asynchronous rendering, caching, and cost and latency optimization
Drive the engineering roadmap for Smart Refinement and multi-turn conversational refinement, scaling from initial launch to a much larger share of search traffic
Build safe, reliable GenAI experiences with layered safeguards: input triggering and exclusion controls, output validation and filtering, and graceful fallbacks
Partner with Applied Scientists, Product Managers, and Program Managers to define requirements and bring models (including distilled LLMs) into production
Design and build scalable data pipelines that process petabytes of search and behavioral data for feature generation, model training, distillation, and evaluation
Drive experimentation strategy: design, run, and analyze online A/B experiments, and make data-driven launch recommendations
Own operational excellence for critical services, including P0 metrics, defect guardrails, monitoring, on-call health, and availability and latency goals
Lead cross-team initiatives, influence the technical decisions of partner teams across Search, and mentor engineers while raising the engineering bar

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

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
Experience leading and influencing your team or organization, or experience as a mentor, tech lead or leading an engineering team
Experience building real-time, low-latency ML or LLM inference systems at scale, including optimizing for latency, throughput, and cost, and developing and deploying LLMs in production on GPUs, Neuron, TPU or other AI acceleration hardware
Experience building and operating large-scale distributed services (e.g., search, recommendations, or ads serving) handling billions of requests per day

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 - 168,100.00 - 227,400.00 USD annually

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Skills

Software development
Computer science
Machine learning
ML
Recruitment
Mental health

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