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Prep/Companies/Postman

SaaS & dev tools · San Francisco (largest engineering centre in Bengaluru)

Postman.

An API platform for designing, testing, documenting, mocking and monitoring APIs, with shared workspaces and collections.

its questions lean on

API design
machine coding with a real server and database
rate limiting
third-party integrations
scheduling
collaboration and sync

The rounds, as candidates describe them

Hiring managerPast projects and technical questions on them; one candidate was told it was an elimination round.source ↗
Machine coding / API designBuild working APIs in your own IDE with a server and a database of your choice (Node.js is common), then follow-ups on scale.source ↗
HLDA system design round, often mixed with a deep dive on your own work and REST API design.source ↗
Bar raiserOpen-ended design on a Postman feature, such as undoing deleted collections.source ↗

Reported by candidates

From public interview write-ups; each links its source.

Design a Rate Limiter (LLD)Low-level design
LLD-03 · Design a Rate Limiter →IP-02 · Design a Rate Limiter →W01 · DAY 03 · Rate Limiting at Scale →reported in:LeetCode Discuss · Postman Senior Software Engineer, Bangalore, Aug 2024 ↗LeetCode Discuss · Postman SDE 2, Bengaluru (2024) ↗LeetCode Discuss · Postman SDE 2, Declined (2022) ↗
Design a URL ShortenerSystem design
IP-01 · Design a URL Shortener →W01 · BOSS · Design a URL Shortener at Scale →reported in:LeetCode Discuss · Postman SDE 2, Bengaluru (2024) ↗LeetCode Discuss · Postman SDE Fullstack Interview Experience (2024) ↗
Design a Weather App that Aggregates Third-Party ProvidersSystem design
W04 · DAY 01 · Caching Patterns →W02 · DAY 03 · Circuit Breakers →IP-06 · Design a Notification System →reported in:LeetCode Discuss · Postman SDE-2 Interview Experience (2024) ↗LeetCode Discuss · Postman Senior Software Engineer, Bangalore, Aug 2024 ↗
Design a Nested Comments System (Machine Coding)Low-level design
no lesson for this one yetreported in:LeetCode Discuss · Postman SE1, Bangalore (2024) ↗LeetCode Discuss · Postman SDE3, Bangalore, May 2024 ↗LeetCode Discuss · Postman SE-2 Backend, Aug 2022 ↗
Design a News FeedSystem design
IP-07 · Design a News Feed →SQ-21 · Instagram Feed and Stories →W04 · DAY 04 · Feed Caching →reported in:LeetCode Discuss · Postman SE1, Bangalore (2024) ↗
Design a Collaborative EditorSystem design
SQ-20 · Google Docs Collaboration →SQ-15 · Figma Multiplayer Editing →W05 · DAY 04 · Conflict Resolution →reported in:LeetCode Discuss · Postman SE-2 Backend, Aug 2022 ↗
Design a Distributed Job SchedulerSystem design
IP-17 · Design a Distributed Job Scheduler →W02 · DAY 05 · Distributed Cron & Job Scheduling →reported in:LeetCode Discuss · Postman SDE3, Bangalore, May 2024 ↗
Design Undo for Deleted Collections with a TTLLow-level design
W09 · DAY 04 · Right to Deletion →reported in:LeetCode Discuss · Postman SE2/SE1, Bangalore (2024) ↗
Build a Simple Key-Value Store like pickleDBLow-level design
IP-03 · Design a Distributed Key-Value Store →reported in:LeetCode Discuss · Postman SE2/SE1, Bangalore (2024) ↗
Build a Friends Online-Status Service (Machine Coding)Low-level design
IP-08 · Design a Chat System →W01 · DAY 05 · Session Store Design →reported in:LeetCode Discuss · Postman SDE-2 Interview Experience (2024) ↗

Likely, from what they build

Our pick, not a report: questions that fit Postman's products.

Design a Scheduled API Monitoring ServiceSystem design
IP-17 · Design a Distributed Job Scheduler →IP-15 · Design a Metrics Monitoring and Alerting System →W09 · DAY 02 · Noisy Neighbor Prevention →
Design Workspace Sync for Shared API CollectionsSystem design
IP-10 · Design a File Sync Service (Dropbox / Google Drive) →W05 · DAY 04 · Conflict Resolution →

Study path

Every lesson the questions above point to, once, in order.

01LLD-03Design a Rate Limiter
02IP-02Design a Rate Limiter
03W01 · DAY 03Rate Limiting at Scale
04IP-01Design a URL Shortener
05W01 · BOSSDesign a URL Shortener at Scale
06W04 · DAY 01Caching Patterns
07W02 · DAY 03Circuit Breakers
08IP-06Design a Notification System
09IP-07Design a News Feed
10SQ-21Instagram Feed and Stories
11W04 · DAY 04Feed Caching
12SQ-20Google Docs Collaboration
13SQ-15Figma Multiplayer Editing
14W05 · DAY 04Conflict Resolution
15IP-17Design a Distributed Job Scheduler
16W02 · DAY 05Distributed Cron & Job Scheduling
17W09 · DAY 04Right to Deletion
18IP-03Design a Distributed Key-Value Store
19IP-08Design a Chat System
20W01 · DAY 05Session Store Design
21IP-15Design a Metrics Monitoring and Alerting System
22W09 · DAY 02Noisy Neighbor Prevention
23IP-10Design a File Sync Service (Dropbox / Google Drive)

Company names and logos are trademarks of their owners, shown only to identify each company. This course isn't affiliated with or endorsed by any of them.

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