Principal Software Engineer, Fulfillment by Amazon - IOS

Amazon is hiring a Principal Software Engineer, Fulfillment by Amazon - IOS in Bengaluru, India. Level rates it ; you can apply on Amazon.

Level's read on this job

Little AI ●○○○ is how Level rates this software engineer role: aI is not part of the work.
Tools and skills the posting cites include AWS, system design and architecture.
Level classifies it as a lead role.
Level lists 20,000+ other open roles at Amazon.

AI in this role

Lead the architectural design and scaling of core systems for Fulfillment by Amazon.

AWS

system-designarchitectureagile

We're seeking an exceptional Principal Engineer to join our WW Fulfillment By Amazon (WW FBA) organization, where you'll directly impact Amazon's five key priorities: increasing speed, reducing Cost to Serve, driving worldwide FBA seller success, growing international markets, and making FBA one of Amazon's best workplaces. You'll help build and optimize the systems powering FBA's massive global operation that enables 2M+ sellers across 196 countries to bring approximately 55M ASINs to customers with Prime shipping. Our organization manages seller inbounding journey—from registration as an FBA seller, shipment creation, to transportation and optimizing time to prime and responsible for seller success. These systems will direct the flow of 19B units across 500+ Fulfillment Centers in 2025, driving $392B in worldwide Gross Merchandise Sales. Join us to solve complex technical challenges in building foundational architecture that is a force multiplier for business initiatives, at incredible scale while directly improving seller satisfaction and contributing to programs projected to generate billions of incremental revenue.

Key job responsibilities
Principal Engineers are pragmatic visionaries who can translate business needs into workable technology solutions. Their expertise is deep and broad. They are hands on, producing both detailed technical work and high-level architectural designs.

About the team
WW FBA team is responsible for the science, business, and operations of the core systems, algorithms, and seller-facing tools and workflows of the FBA service. These systems enable FBA sellers to enroll selection, plan and inbound product, and manage and action inventory in Amazon fulfillment network - managing through the full inventory lifecycle. FBA Inbound systems and products worldwide enable FBA sellers to inbound inventory to Amazon warehouses for distribution and fulfillment on and off amazon, be the success multiplier for selling partners by delivering trusted, simple, and flexible supply chain services that move billions of units into Amazon's global network reliably, transparently, and cost-effectively.

Basic qualifications

- 10+ years of engineering experience
- 10+ years of planning, designing, developing and delivering consumer software experience
- Experience partnering with product or program management teams
- Experience managing multiple concurrent programs, projects and development teams in an Agile environment

Preferred qualifications

- Experience designing and developing large scale, high-traffic applications
- Knowledge of object-oriented design, data structures, and algorithms

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.

How we rate this

Principal Software Engineer, Fulfillment by Amazon - IOS at Amazon rates 10 out of 100 for how much of the daily work is AI. That makes it Little AI (AI Level 1 of 4). The level is about AI in the job, not seniority.

Classification

Little AI. AI is not part of the work.

●●●● Builds AI80 to 100
●●●○ Works on AI60 to 79
●●○○ Uses AI40 to 59
●○○○ Little AI0 to 39

Levels come from how often the tools, models and workflows of the role are named in the posting itself. Read the description and count the AI tools, models and workflows it names.

Key facts

Principal Software Engineer, Fulfillment by Amazon - IOS is an open job at Amazon.
Level rates this role AI Level 1 of 4: Little AI.
The role is based in IN, KA, Bengaluru.
The job was posted on September 6, 2026.
Seniority: lead.
Applications are handled by Amazon. Apply on Amazon

Prepare for this job

Built from this posting and from similar jobs on Level.

Skills and AI tools this role asks for

System DesignArchitectureAgileAWS

Also common in software engineer jobs at this level

Python Java AWS C++Kubernetes TypeScript

Pay

Typical software engineer job: $167k

This posting doesn't list pay. Use the typical software engineer figure when pay comes up. See software engineer jobs

Questions you could be asked

Tell me about a project where system design was part of your work. What did you do?
Tell me about a project where architecture was part of your work. What did you do?
Tell me about a project where agile was part of your work. What did you do?
What's a project where you used AWS hands-on?

Adapt your resume

List these exact terms on your resume: System Design, Architecture, Agile, and AWS. An applicant tracking system matches the wording, not the idea.
Attach one line of real, concrete experience to at least one of them. A tool named with nothing behind it rarely survives a human read.

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