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Behavioral and leadership · Coding · System design
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Async processing with durable queues, per-channel isolation, retries/DLQ, at-least-once + idempotency, outbox, priorities.
Companies: Bnsf, Airbnb, Amazon, Autodesk +24
async-processing · idempotency · outbox-pattern · queues
Last reported Nov 2026
Companies: Bnsf
Real-Time Systems · System Design
Last reported Oct 2026
Companies: Bnsf
System Design · System Design Fundamentals
Last reported Oct 2026
Design a real-time messaging system like WhatsApp or Facebook Messenger that supports 1:1 and group conversations, message delivery status tracking, user presence features…
Companies: Bnsf, Addepar, Airbnb, Airwallex +22
System Design
Last reported Oct 2026
Design a service that assembles an optimized train configuration given a set of locomotives with varying pull capacities and railcars with different weights and lengths…
Companies: Bnsf
Last reported Sep 2026
Walk through your approach to migrating a project from a monolithic architecture to a microservice-based architecture. Discuss the key challenges, strategies, and trade-offs…
Companies: Bnsf
Last reported Sep 2026
Companies: Bnsf
System Design
Last reported Aug 2026
Design a system with API endpoints that tracks and logs the real-time status of trains, allowing users to monitor train locations, schedules, and operational states.
Companies: Bnsf
Last reported Jun 2026
Given directed edges that form a single non-cyclic path, find the unique city with outdegree zero — the destination. Practically, it's the city that appears…
Companies: Bnsf
Last reported Mar 2026
Given two integer arrays, return two counts: how many indices in nums1 have values that appear anywhere in nums2, and how many indices in nums2…
Companies: Bnsf
Last reported Jan 2026