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Senior Backend Engineer, Autonomous Defense
Horizon3
Remote, United States
- $170,000 to $235,000 USD / year
As a Senior Backend Engineer on the Autonomous Defense team, you'll build the platform that NodeZero's defensive agents run on. Our AI researchers define what these agents should reason…
Added just now
Lead Information Security Engineer - Red Team
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VDC Engineer | Vision
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Added 3 mins ago
Engineering Project Manager - Mission Critical
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Houston, TX
Develop project execution plans, schedules, and associated communications documents to drive successful execution strategy for the projects.
Added 4 mins ago
Administrator III, IT Infrastructure
Invenergy LLC
Chicago, IL
…operator of power infrastructure. With 25 years of trusted execution, we deliver reliable, affordable energy through a diverse portfolio that includes natural gas, solar, land-based wind,…
Added 4 mins ago
Technology Engineer, IT Infrastructure
Invenergy LLC
Chicago, IL
…operator of power infrastructure. With 25 years of trusted execution, we deliver reliable, affordable energy through a diverse portfolio that includes natural gas, solar, land-based wind,…
Added 6 mins ago
Senior Controls Engineer
DMG SC INC
Orange, CA
Our Service and Controls division (DMG SC) is focused on providing high quality, local support for the products DMG represents. Our Controls Team works with customers to optimize equipment…
Added 6 mins ago
Sr Manufacturing Engineer
PBS Aerospace Inc
Roswell, GA
This role is a critical, high-visibility role at the intersection of design, manufacturing, and test. You will support PBS Aerospace’s strategic growth initiatives in close cooperation with…
Added 7 mins ago
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Cloud Security Engineer
WorkWave
Remote, United States
- $120,000 to $145,000 USD / year
We are seeking a proactive, hands-on Cloud Security Engineer to serve as the primary security partner for our Engineering and DevOps teams. In this role, you will be the "North Star" for…
Added 7 mins ago
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Change Order Engineer - NYC DEP Projects
Certified Site Safety of NY LLC
New York City, NY
- $55 to $80 USD / hour
We are seeking an experienced Change Order Engineer with deep expertise in the NYCDEP Bureau of Engineering Design and Construction (BEDC) change order process. In this role, you will lead…
Added 8 mins ago
Project Manager
B & I Contractors, Inc
Fort Myers, FL
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Added 9 mins ago
Global Quality Engineer
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Engineer, Global Quality Assurance – Operations
Added 9 mins ago
Forward Deployed Engineer
Capgemini
Atlanta, GA, GA
…real production environments. You'll lead demos and pilots, support integrations, and drive adoption of the Cognition platform from the inside…
Added 9 mins ago
Quality Engineer
Saras Micro Devices
Chandler, AZ
Are you a highly analytical and detail-oriented Quality Engineer looking for an opportunity to make a meaningful impact in an innovative, fast-paced technology environment? Saras Micro…
Added 11 mins ago
Sr. Mechanical Design Engineer
Actalent
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This engineer supports the design and development of advanced aerospace systems, with a focus on new composite components such as radomes and ground support equipment. Youll take designs…
Added 11 mins ago
Sr. Specialist, Systems Engineer (Test Equip)
Acron Aviation
Phoenix, AZ
Acron Aviation is seeking a Senior Specialist, Systems Engineer (Test Equip) to lead the design, development, integration, update, maintenance, and operational support of engineering test…
Added 12 mins ago
Software Developer (SAP ABAP, BTP & AWS), Multiple Positions
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Added 12 mins ago
Senior Engineer, Water
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…throughout the Americas, Asia, and Europe, the firm provides support on projects of varying size and complexity. Together, we enhance conventional designs with smarter, more resilient…
Added 12 mins ago
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Sr Advanced Systems Engineer
Honeywell Aerospace
Redmond, WA
- $133,000 to $167,000 USD / year
YOU MUST HAVE
Added 12 mins ago
Lead Information Security Engineer - Red Team
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The Lead Information Security Engineer within Product and Platform Security provides technical leadership and hands-on execution across Red Team functions. This role leverages advanced…
Added 12 mins ago
Software Dev Engineer II, Technical Content Experience (TCX) Engineering
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Seattle, WA
In this role, you will own solutions from design and execution through deployment and support, using the best of available tools, including Lambda, DynamoDB, and AI/ML services. You will be…
Added 12 mins ago
Technical Program Manager III, AWS Fintech
Amazon
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Own the program strategy, delivery roadmap, and cross-organization execution for unified revenue and actuals programs, defining objectives and measurable success criteria that keep delivery…
Added 12 mins ago
Software Development Engineer, Amazon Search Navigation AI
Amazon
Seattle, WA
We are looking for a Software Development Engineer who is a pragmatic problem solver, comfortable with ambiguity, and curious about applied science. You will build and improve the Search…
Added 12 mins ago
Production Network Engineer, Design
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Production Network Engineer, Design Responsibilities:
Added 13 mins ago
Safety Engineer
Amentum
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Amazon

Software Development Engineer, Amazon Search Navigation AI

Seattle, WA, United States

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Job details

Posting language: English
Posted: Oct 23, 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 Software Development Engineer who is a pragmatic problem solver, comfortable with ambiguity, and curious about applied science. You will build and improve the Search Navigation platform, including the systems that serve LLMs in real time, and work closely with Applied Scientists to take new models from research into production.

Key job responsibilities

Design, build, and operate large-scale, distributed, low-latency services that power Amazon Search Navigation experiences worldwide
Build and optimize online LLM serving for Smart Refinement and multi-turn conversational refinement, with a focus on latency, reliability, and cost
Work with Applied Scientists, Product Managers, and Program Managers to define requirements and integrate models into production systems
Build scalable data pipelines that process large volumes of search and behavioral data for feature generation, model training, and evaluation
Design, run, and analyze online A/B experiments to measure the impact of new models and features
Contribute to operational excellence for critical services, including monitoring, on-call, and P0 metrics and defect guardrails
Write high-quality, well-tested code and take part in design and code reviews

Basic Qualifications

3+ years of non-internship professional software development experience
3+ years of non-internship design or architecture (design patterns, reliability and scaling) of new and existing systems experience
3+ years of software development engineer or related occupational experience
3+ 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
3+ years of Object Oriented Design experience
Experience programming with at least one software programming language

Preferred Qualifications

Bachelor's degree in computer science or equivalent
Experience in developing and deploying LLMs in production on GPUs, Neuron, TPU or other AI acceleration hardware
Experience in machine learning, data mining, information retrieval, statistics or natural language processing
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.

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 - 143,700.00 - 194,400.00 USD annually

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Skills

Software development
Research
C#
C++
Oracle Java
Perl
Computer science
Machine learning
Data mining
Statistics
Natural language processing
Recruitment
Mental health

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Jobs in the United States