Jobs in the United States

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Added 24 mins ago
Principal Electrical Engineer, Automatic Test Equipment (ATE)
Paragon Cyber Solutions
Oxnard, CA
Paragon Cyber Solutions has an immediate opening for those ready for an exciting and dynamic career as a Principal Electrical Engineer to support the Vertical Launch System (VLS) Automatic…
Added 1 hour ago
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Principal Software Engineering - Reliability and FinOps Engineer
AT&T
Bothell, WA
- $155,400 to $261,100 USD / year
As a Principal System Engineer, you will serve as a senior technical leader across FinOps, cloud optimization, system reliability, and AI-driven automation. You will shape and execute…
Added 1 hour ago
Software Development Engineer, Fees Tech
Amazon
Seattle, WA
You will work alongside senior and principal engineers, product managers, applied scientists, and ML engineers across the full fee lifecycle - from the Fee Calculation Engine through…
Added 1 hour ago
Software Development Engineer II, Efficiency & Performance, Alloy
Amazon
Seattle, WA
As a Software Development Engineer in Alloy , you will collaborate with service and infrastructure teams across Amazon to identify and eliminate performance bottlenecks in large-scale…
Added 1 hour ago
Principal Design Verification Engineer , Annapurna Labs
Amazon
Cupertino, CA
We are looking for a passionate Principal Design Verification Engineer to join our newly formed team responsible for verifying high-speed I/O and scale-up/out components across the SoC. You…
Added 1 hour ago
Principal or Sr Principal Engineer Electrical
Northrop Grumman
San Diego, CA
Northrop Grumman Aeronautics Systems MQ-4 Triton Program seeks a Principal or Sr. Principal Engineer Electrical to support the Vehicle Management Subsystem's Hardware Avionics team in…
Added 1 hour ago
Principal or Sr Principal Engineer Electrical
Northrop Grumman
San Diego, CA
Northrop Grumman Aeronautics Systems is looking for a Principal or Sr Principal Electrical Engineer to support the Circuit Design organization in San Diego, CA.
Added 3 hours ago
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Principal or Staff Product Security Engineer
Skylight
Remote, United States
- $200,000 to $250,000 USD / year
Provide metrics and data on findings, remediation, and SLA adherence to support compliance and leadership reporting.
Added 4 hours ago
UO
Principal Thermal Engineer
University of Colorado Denver
Boulder, CO
- $34,986 USD / year
LASP is seeking a Thermal Engineer to lead the design and development of thermal control systems for spaceflight instruments and mission proposals. The role focuses on solving complex…
Added 5 hours ago
Sr Platform Engineer
Mayo Clinic
Rochester, MN
Under the direction of the Director – Platform Technology and the Principal Platform Integration Engineer, this team member will support the direct execution and delivery of technical…
Added 5 hours ago
Principal Mixed Signal Design Engineer
Micron Technology, Inc.
Richardson, TX
Leverage data-driven methods and automation to identify design trends, accelerate debug, and support predictive insights across pre-silicon and post-silicon engineering activities
Added 5 hours ago
Principal Engineer, Waste Treatment and Reclamation
Micron Idaho Semiconductor Manufacturing (Triton) LLC
Boise, ID
Professional Engineer, hazardous waste operations certification, or other relevant credential
Added 5 hours ago
Project Engineer of Foods Operations
Perdue Farms, Inc.
Washington, IN
Drive operational excellence and capital project success across foods operations as a Project Engineer. In this role, you lead capital planning and execution for harvest plants, ensuring…
Added 5 hours ago
UO
Senior/Principal Electrical Engineer - Spacecraft and Instruments
University of Colorado Denver
Boulder, CO
- $34,986 USD / year
…wider universe. We are seeking a senior electrical hardware engineer who enjoys hands-on circuit design and can carry high-reliability electronics from requirements and schematic capture…
Added 5 hours ago
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(USA) Principal, Software Engineer
Walmart
SUNNYVALE, CA
- $143,000 to $286,000 USD / year
The (USA) Principal, Software Engineer leads the design and delivery of scalable platform capabilities, driving innovation in cloud-native architectures and AI/ML integration. This role…
Added 5 hours ago
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Principal, Software Engineer - Walmart Data Ventures
Walmart
BELLEVUE, WA
- $132,000 to $264,000 USD / year
The Principal Software Engineer leads platform engineering efforts by delivering scalable, cloud-native solutions and reusable infrastructure components that support long-term technical…
Added 6 hours ago
Track Supervisor 106246
Canadian Pacific
Meridian, MS
Added 6 hours ago
UO
Senior FPGA Development Engineer
University of Colorado Denver
Boulder, CO
- $34,986 USD / year
The Laboratory for Atmospheric and Space Physics (LASP) is seeking an FPGA Design Engineer IV to serve as a senior technical leader for flight digital logic used in spaceflight science…
Added 7 hours ago
Senior Cybersecurity and Space Vehicle Defense Mission Engineer
The Aerospace Corpor
Colorado Springs, CO
…and exploit development to ensure cyberspace superiority in support of space control operations. We are seeking a Senior Cybersecurity and Space Vehicle Defense Mission Engineer to lead…
Added 7 hours ago
Virtual Sales Engineer - West
Leybold USA Inc
Denver, CO
Added 7 hours ago
Modeling & Simulation Systems Engineer (3/4) (Principal or Sr. Principal)
CORP-Corporate Office
United States
Northrop Grumman Aeronautics Systems has an opening for a Modeling & Simulation Systems Engineer to join our team of qualified, diverse individuals within our Research and Advanced…
Added 10 hours ago
Principal Automation Engineer Optical Inspection SME
J&J Family of Companies
Wilson, NC
Senior Automation Engineer will lead internal team members, suppliers, OEMs, system integrators, Digital/IT partners, automation-system owners, and cross-functional stakeholders to deliver…
Added 10 hours ago
SR
LEAD ENGINEER - PRINCIPAL ENGINEER - Laser Development Engineer - Boulder, CO
Southwest Research I
Boulder, CO
- $121,451 to $226,720 USD / year
Support the division in cutting edge research involving pulsed lasers, mass spectrometry and high-speed data acquisition systems.
Added 10 hours ago
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Principal Software Engineer - Microsoft Advertising
Microsoft
WA · Redmond, WA · Redmond
- $142,800 to $304,200 USD / year
This Principal Software Engineer role owns core architectural and technical evolution of the platform, focusing on modernization, performance, scalability, experimentation infrastructure,…
Added 10 hours ago
M
Principal Software Engineer-M365
Microsoft
WA · CA · Redmond, WA · Mountain View, CA · Redmond · Mountain View
- $142,800 to $304,200 USD / year
We are looking for a Principal Software Engineer who is passionate about security, technical challenges, debugging and, above all, customer success and satisfaction. Deep experience…

Amazon

Software Development Engineer, Fees Tech

Seattle, WA, United States

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Job details

Experience: 3+ years of non-internship professional software development experience
Posting language: English
Posted: Oct 8, 2026

Original job description

Description

Are you an SDE II who thrives on end-to-end ownership, gets energized by problems where correctness actually matters, and wants to work on systems that are actively being reimagined and not just maintained? This role might be for you.

On Fee Tech, you will own systems that 2+MM sellers depend on daily to understand, predict, and act on their economics. The work is genuinely end-to-end: you design, build, ship, and operate. Our systems process ~68.5B transactions and used across 23 countries. The engineering model is changing fast: we are rebuilding how fee policy is expressed, deployed, and validated using AI agents, formal verification (SMT), and self-improving RL loops.

You will work alongside senior and principal engineers, product managers, applied scientists, and ML engineers across the full fee lifecycle - from the Fee Calculation Engine through ML-based item classification to seller-facing AI surfaces and the agentic infrastructure beneath them. If you are the kind of engineer who wants to see the direct impact of what you ship, you will see it here.

Key job responsibilities

Design and build distributed systems.
Deliver features end-to-end: own requirements scoping, technical design, implementation, code review, testing, launch, and operational monitoring for your workstreams - from initial design doc through production.
Operate AI-native engineering practices: use AI-assisted coding, multi-agent workflows, and agentic code review tools as your default mode of software delivery.
Build and maintain agentic systems with a focus on correctness, latency, and self-improvement loops.
Drive operational excellence: participate in oncall rotation, resolve incidents, reduce MTTR, contribute to postmortems and preventive action items, and build tooling that reduces KTLO burden for the team.
Collaborate across disciplines: partner with product managers defining seller experience roadmaps, UX designers shaping how sellers interact with fee surfaces, data and applied scientists building ML models for fee classification and seller economics analysis, and business stakeholders across WW Global Selling, FBA, and Finance.
Contribute to technical strategy: write design documents and architecture proposals that are reviewed and challenged by senior engineers; participate actively in architectural discussions around the three-year Agentic Architecture Plan.

Mentor and support peers: review code with a high bar, share feedback constructively, and help junior engineers grow through pairing, design reviews, and documentation.

Basic Qualifications

3+ years of non-internship professional software development experience
1+ 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
Bachelor's degree or foreign equivalent in Computer Science, Engineering, Mathematics, or a related field
Experience programming with at least one software programming language

Preferred Qualifications

Master'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, or experience in computer architecture

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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More about this job

Skills

Software development
ML
Monitor operations in the leather industry
C#
C++
Oracle Java
Perl
Computer science
Machine learning
Recruitment
Mental health

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