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Added 32 mins ago
Principal Site Reliability Engineer (Vehicle Engineering)
SpaceX
Bastrop, TX
We are looking for a Principal Site Reliability Engineer who wants to own everything from Linux machines and our Infrastructure as Code, storage, and user facing applications – the whole…
Added 41 mins ago
LU
Virtual Sales Engineer - West
Leybold USA Inc
Denver, CO
- $40,123 USD / year
Join Leybold as a Virtual Sales Engineer! Be the single point of contact for customers, driving sales in open territories and re-engaging lapsed accounts. Enjoy a hybrid work model after…
Added 2 hours ago
Cost Planning Principal Engineer
Honda Dev. and Mfg. of Am.,LLC
Raymond, OH
The Cost Planning Engineer deeply understands the Design Category's cost situation. This position can identify concerns with cost accuracy or efficiency and suggest options for cost…
Added 3 hours 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 4 hours 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 4 hours 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 5 hours 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 5 hours 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 6 hours ago
S
Principal or Staff Product Security Engineer
Skylight
Remote, United States
- $200,000 to $250,000 USD / year
…millions of families (plus Wired and the Wirecutter). Our latest product is Calendar 2, which just launched to rave…
Added 7 hours ago
CC
Principal Electrical Engineer - Denver, CO
CONMED Corporation
Denver, CO
- $40,123 USD / year
…motivated by solving challenging, systemlevel problems. The Principal Electrical Engineer will shape advanced technologies, influence architecture and design decisions, and provide…
Added 8 hours ago
Senior Principal, Test Technician
Austin, TX · TX
Work with developer to resolve product issues discovered during test, if applicable
Added 8 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 8 hours ago
Principal Mixed Signal Design Engineer
Micron Technology, Inc.
Richardson, TX
Scalability across HBM and DRAM product families
Added 9 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 9 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 9 hours ago
Senior Project Manager - Stormwater
BKF
Remote, United States
…Resources business sector. This position is equivalent to a Principal Engineer or higher level at similar consulting firms and represents experience beyond the mid-level in technical…
Added 9 hours ago
Senior Project Manager - Stormwater
BKF
Remote, United States
…Resources business sector. This position is equivalent to a Principal Engineer or higher level at similar consulting firms and represents experience beyond the mid-level in technical…
Added 9 hours ago
Senior Project Manager - Stormwater
BKF
Remote, United States
…Resources business sector. This position is equivalent to a Principal Engineer or higher level at similar consulting firms and represents experience beyond the mid-level in technical…
Added 9 hours ago
Senior Project Manager - Stormwater
BKF
Remote, United States
…Resources business sector. This position is equivalent to a Principal Engineer or higher level at similar consulting firms and represents experience beyond the mid-level in technical…
Added 9 hours ago
Senior Project Manager - Stormwater
BKF
Remote, United States
…Resources business sector. This position is equivalent to a Principal Engineer or higher level at similar consulting firms and represents experience beyond the mid-level in technical…
Added 9 hours ago
Senior Project Manager - Stormwater
BKF
Remote, United States
…Resources business sector. This position is equivalent to a Principal Engineer or higher level at similar consulting firms and represents experience beyond the mid-level in technical…
Added 9 hours ago
Senior Project Manager - Water and Wastewater
BKF
Remote, United States
…Resources business sector. This position is equivalent to a Principal Engineer or higher level at similar consulting firms and represents experience beyond the mid-level in technical…
Added 9 hours ago
Senior Project Manager - Water and Wastewater
BKF
Remote, United States
…Resources business sector. This position is equivalent to a Principal Engineer or higher level at similar consulting firms and represents experience beyond the mid-level in technical…
Added 9 hours ago
Senior Project Manager - Water and Wastewater
BKF
Remote, United States
…Resources business sector. This position is equivalent to a Principal Engineer or higher level at similar consulting firms and represents experience beyond the mid-level in technical…
Added 9 hours ago
Senior Project Manager - Water and Wastewater
BKF
Remote, United States
…Resources business sector. This position is equivalent to a Principal Engineer or higher level at similar consulting firms and represents experience beyond the mid-level in technical…

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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