Jobs in the United States

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Added 1 min ago
Sr Software Engineer
Cengage Learning Inc.
OH
At Cengage, our employees have a direct impact in helping learners around the world discover the power and joy of learning. We are bonded by our shared purpose – driving innovation that…
Added 3 mins ago
Sr. Presales Systems Engineer
Forescout Technologies Inc.
United States
Every day cyberattacks threaten to disrupt hospitals, power grids, financial systems, and the infrastructure we all depend on. At Forescout, we build defenses that keep civilization running…
Added 6 mins ago
Laser Welding Engineer
Ford
Dearborn, MI · Dearborn
…Ford’s safety standards and industry best practices for high-power laser…
Added 9 mins ago
Yaw System Mechanical Design Engineer
GE Vernova
Greenville, SC
You will primarily support the hydraulic power unit system through the entire life cycle from conceptual design through detailed design and development, testing, qualification,…
Added 10 mins ago
Lead Electrical Commissioning Engineer
We Are Overwatch
Remote, United States
is a critical leadership role responsible for directing the electrical validation and power reliability program for large-scale, mission-critical data center construction projects. Acting…
Added 12 mins ago
Engineer
THE UNITED ILLUMINATING COMPANY
United States Of America, CT
This role, Engineer - Cyber- IAM (Identity and Access Management), provides strategic leadership and operational support across Avangrid Networks to advance compliance initiatives for…
Added 13 mins ago
Principal Analog Mixed-Signal Design Engineer
SiTime Corporation
CA
…decades, quartz devices, non-silicon technology, have kept systems in sync, but they struggle in harsher, more demanding environments. MEMS-based Precision Timing delivers greater accuracy,…
Added 13 mins ago
BT
Electrical Engineer - OSPO (BT-26211)
Bastion Technologies
Pasadena, CA
- $135,000 to $160,000 USD / year
Perform electrical design reviews and construction inspections of JPL facilities, with emphasis on electrical power systems.
Added 14 mins ago
Automation Engineer (Onsite)
RTX
United States
Pratt & Whitney is a world leader in the design, manufacture and service of aircraft engines and auxiliary power systems and has been revolutionizing modern flight for over 100 years. Join…
Added 14 mins ago
Project Engineer - 30K Mechanical Systems (Onsite)
RTX
United States
Pratt & Whitney’s Mechanical Systems, Externals and Nacelles (MSEN) team is seeking a motivated Project Engineer to support part-level engineering ownership and Component Integrated Product…
Added 15 mins ago
Laser Welding Engineer
Ford Global
Dearborn, MI
…Ford’s safety standards and industry best practices for high-power laser…
Added 15 mins ago
Sr Project Engineer - I&E
Methanex
Geismar, LA
The Senior Project Engineer – I&E facilitates the development of a portfolio of capital and OPEX projects for the Geismar site. During the development of projects, they will perform…
Added 17 mins ago
A
Electrical Engineer
Actalent
Pocasset, MA
- $45 to $65 USD / hour
Exciting Electrical Engineer Opportunity!This Electrical Engineer role focuses on designing, integrating, and validating electrical and electromechanical systems that support advanced…
Added 17 mins ago
Rf Engineer
Actalent
Woburn, MA
RF Engineer Opportunity Supporting Next Gen A&D Technology!!Job DescriptionThis role focuses on the design, development, and testing of RF hardware systems across the full development…
Added 17 mins ago
A
PCB Design Engineer
Actalent
Merritt Island, FL
- $40 to $55 USD / hour
Job Title: Electronics Design EngineerJob DescriptionWe are seeking an Electronics Design Engineer with at least 2 years of hands-on PCB and circuit card assembly (CCA) design experience to…
Added 17 mins ago
H
PageWide Web Press Mechanical Engineer
HP
Corvallis, OR
- $83,000 to $127,800 USD / year
As a PWI Mechanical Engineer you will work in a dynamic and changing environment, designing mechanical systems and sub-systems for current and next generation digital inkjet web press…
Added 21 mins ago
Engineer- Manufacturing Systems I USA
First Solar (US)
Walbridge, OH · Perrysburg, OH
First Solar is a leader in the development and manufacturing of thin film solar modules used in grid-connected solar power plants. Our high growth and position in the renewable energy…
Added 27 mins ago
Power Systems Engineer
K2M Design, Inc
Bentonville, AR
Position Summary: As an Electrical Engineer, your main responsibility will be for design, development, implementation, and analysis of electrical designs and systems. For the Arc Flash…
Added 27 mins ago
Traction Power Engineer
STV Incorporated
Bellevue, WA
STV is seeking a Traction Power Engineer to join our Systems team in Bellevue, Washington. In this role, you will support the planning, design, analysis, and delivery of traction power…
Added 28 mins ago
Electrical Project Engineer III/Senior
Marathon Petroleum Logistics Services LLC
Findlay, OH
Projects include a wide range of electrical and control equipment, including power distribution systems (medium and low voltage), motor control centers (MCC), programmable logic controllers…
Added 33 mins ago
Platform and Data Engineer
Booz Allen Hamilton_United States
Pearl Harbor, HI
The DoD is looking for individuals with exceptional software development, data engineering, or data science backgrounds who have done outstanding work utilizing tools such as Foundry,…
Added 34 mins ago
Hybrd Electric Vehicle (xHEV) Calibration Engineer
Stellantis
Auburn Hills, MI
The Hybrid Electric Vehicle Calibration Engineer is responsible for leading calibration development of an assigned function items in the Electric Vehicle Control Unit (EVCU) from first…
Added 34 mins ago
Principal Software Engineer, AI Defense (Hybrid)
Cisco
Milpitas, CA
As a Principal Software Engineer for AI Defense, you will serve as the chief technical authority driving the end-to-end security architecture for Cisco's enterprise AI ecosystems. You will…
Added 36 mins ago
Project Engineer IV
Frontgrade
Hauppauge, NY
The Project Engineer IV will be the technical leader of a cross-discipline engineering team and responsible for projects aimed at delivering mission-critical hardware to support our…
Added 41 mins ago
Engineer Technician III or IV
Electric Power Systems Inc
Anchorage, AK
Electric Power Systems, Inc. is a unique company offering a wide range of experience and education in the area of power system operations, design, consultation and studies; petroleum…

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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