Sr Software Development Engineer, Amazon Fulfillment Technologies, Inbound Foundation and Routing Team

Amazon

Amazon is working to be the most customer-centric company on Earth, powering the physical engine at the heart of Amazon through Amazon Fulfillment Technologies (AFT).

Bengaluru, Karnataka, India

Backend

Senior Software Engineer

In-Person

5,000+ Employees

5+ years of experience

AI · Logistics · Robotics

Description For Sr Software Development Engineer, Amazon Fulfillment Technologies, Inbound Foundation and Routing Team

At Amazon, we are working to be the most customer-centric company on Earth. Amazon Fulfillment Technologies (AFT) powers the physical engine at the heart of Amazon. AFT builds and operates the software, hardware, and processes that run the global network of fulfillment centers, which move billions of units of inventory and ensures customers get what they want when promised. Within AFT, we are constantly innovating in the ways we are automating and accelerating the delivery of products and packages using state of the art software and hardware technologies, while keeping our associates and partners safe.

We are looking for Senior Software Development Engineers to join the AFT Inbound Foundations and Routing team (IBFR). This team is responsible for building core software components/services that orchestrate the movement of inventory within a warehouse and interfacing with sortation and SCOT systems for high fidelity promise and planning decisions. The systems you build will have a direct impact on the Top Line performance of the company to the tune of hundreds of millions (USD).

Key responsibilities include:

Creating and delivering software and automated solutions for Amazon fulfillment centers worldwide
Engaging multiple teams to design/develop and support large-scale, multi-tiered software applications and tools
Building new software from the ground up and creating pragmatic solutions for complex business problems
Working closely with operations staff in Amazon fulfillment centers around the world
Influencing subsystem design and helping build a team culture around practices critical to a quality product

We have a startup culture that focuses on being agile and nimble in the face of ambiguities and complexities while dealing with multiple orgs within Amazon. The teams are structured to enable fast decision making, smaller and quick launches.

Join us to be part of developing large-scale, distributed systems which optimize the fulfillment of customer orders, interface with the physical world including conveyors & robots, and create systems used by thousands of associates to delight millions of customers.

Last updated 5 months ago

Responsibilities For Sr Software Development Engineer, Amazon Fulfillment Technologies, Inbound Foundation and Routing Team

Create and deliver software and automated solutions for Amazon fulfillment centers worldwide
Engage multiple teams to design/develop and support large-scale, multi-tiered software applications and tools
Build new software from the ground up
Create pragmatic solutions for complex business problems
Work closely with operations staff in Amazon fulfillment centers around the world
Influence subsystem design and help build a team culture around practices critical to a quality product

Requirements For Sr Software Development Engineer, Amazon Fulfillment Technologies, Inbound Foundation and Routing Team

Java

Python

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

Amazon

Amazon is working to be the most customer-centric company on Earth, powering the physical engine at the heart of Amazon through Amazon Fulfillment Technologies (AFT).

Bengaluru, Karnataka, India

Backend

Senior Software Engineer

In-Person

5,000+ Employees

5+ years of experience

AI · Logistics · Robotics

Amazon

Lowest Common Ancestor of a Binary Tree

Data Structures & AlgorithmsMedium

Given a binary tree, find the lowest common ancestor (LCA) of two given nodes in the tree. According to the definition of LCA on Wikipedia: “The lowest common ancestor is defined between two nodes p and q as the lowest node in T that has both p and q as descendants (where we allow a node to be a descendant of itself). For example: If the tree is [3,5,1,6,2,0,8,null,null,7,4], p = 5, q = 1, then the expected output is 3, because the LCA of nodes 5 and 1 is 3. If the tree is [3,5,1,6,2,0,8,null,null,7,4], p = 5, q = 4, then the expected output is 5, because the LCA of nodes 5 and 4 is 5, since a node can be a descendant of itself according to the LCA definition. If the tree is [1,2], p = 1, q = 2, then the expected output is 1. Consider these constraints: The number of nodes in the tree is in the range [2, 10^5]. -10^9 <= Node.val <= 10^9 All Node.val are unique. p != q p and q will exist in the tree.

Trees

Recursion

Amazon

How would you implement a service like Twitter?

System DesignHard

Let's design a Twitter-like service. Consider the following: Core Functionality: How would you implement the ability for users to post tweets, follow other users, and view a timeline of tweets from the users they follow? Data Model: What database schema would you use to store tweets, user information, and follower relationships? Consider scalability and efficiency for reads and writes. Scalability: How would you handle a large number of users and tweets? Discuss strategies for sharding, caching, and load balancing. Real-time Updates: How would you ensure that users see new tweets in their timeline in near real-time? Consider using technologies like WebSockets or Server-Sent Events. Search: How would you implement a search feature that allows users to find tweets containing specific keywords or hashtags? Think about indexing strategies and search algorithms. Rate Limiting: How would you prevent abuse and ensure fair usage of the service? Describe your approach to rate limiting API requests. Example Scenario: Imagine a user, Alice, follows 1,000 other users, including Bob. Bob posts a tweet. Explain how that tweet would propagate to Alice's timeline, considering potential performance bottlenecks. Technology Stack: What technologies (programming languages, frameworks, databases, etc.) would you choose and why?

Database Problems

Graphs

Arrays

Strings

Amazon

Describe a time you had a project conflict and how you handled it.

Behavioral

Tell me about a time you ran into a conflict with a project. How did you handle it?

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