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Changelog

Track all the latest content additions and updates to Hello Interview. We continuously add new system design breakdowns, deep dives, and learning materials.

September 15 - 21, 2025

1 updates

New Content

Data Modeling for System Design Interviews

Sep 15, 2025 by Evan King | Deep Dive

September 1 - 7, 2025

7 updates

New Content

Team Match Survival Guide

Sep 3, 2025 by Stefan Mai | Blog

Amazon Manager Interview Guides & Questions (2026)

Sep 2, 2025 by Evan King | Content

Google Manager Interview Guides & Questions (2026)

Sep 2, 2025 by Evan King | Content

OpenAI L5 Interview Guides & Questions (2026)

Sep 2, 2025 by Evan King | Content

Airbnb G8 Interview Guides & Questions (2026)

Sep 2, 2025 by Evan King | Content

Airbnb G9 Interview Guides & Questions (2026)

Sep 2, 2025 by Evan King | Content

Microsoft L63-64 Interview Guides & Questions (2026)

Sep 2, 2025 by Evan King | Content

August 25 - 31, 2025

1 updates

New Content

Google L4 Interview Guides & Questions (2026)

Aug 29, 2025 by Evan King | Content

August 18 - 24, 2025

3 updates

New Content

The 7 Must Know Patterns for System Design Interviews

Aug 20, 2025 by Evan King | Blog

Google L6 Interview Guides & Questions (2026)

Aug 20, 2025 by Evan King | Content

New Videos

Design a Distributed Rate Limiter

Aug 19, 2025 by Evan King | System Design

August 11 - 17, 2025

1 updates

New Videos

Real-time Updates Pattern for System Design Interviews

Premium

Aug 17, 2025 by Stefan Mai | System Design

August 4 - 10, 2025

11 updates

New Content

Meta E3 Interview Guides & Questions (2026)

Aug 4, 2025 by Evan King | Content

Meta E4 Interview Guides & Questions (2026)

Aug 4, 2025 by Evan King | Content

Meta E5 Interview Guides & Questions (2026)

Aug 4, 2025 by Evan King | Content

Meta E6 Interview Guides & Questions (2026)

Aug 4, 2025 by Evan King | Content

Meta M1 Interview Guides & Questions (2026)

Aug 4, 2025 by Evan King | Content

Amazon L4 Interview Guides & Questions (2026)

Aug 4, 2025 by Evan King | Content

Amazon L5 Interview Guides & Questions (2026)

Aug 4, 2025 by Evan King | Content

Amazon L6 Interview Guides & Questions (2026)

Aug 4, 2025 by Evan King | Content

Google L5 Interview Guides & Questions (2026)

Aug 4, 2025 by Evan King | Content

OpenAI L4 Interview Guides & Questions (2026)

Aug 4, 2025 by Evan King | Content

Updated Content

Data Structures for Big Data in System Design Interviews

Premium

Aug 6, 2025 | Deep Dive

July 28 - August 3, 2025

1 updates

New Content

Design a Distributed Rate Limiter

Jul 31, 2025 by Evan King | System Design

July 21 - 27, 2025

2 updates

New Content

SQL vs NoSQL: How to Answer This Interview Question in 2025

Jul 22, 2025 by Stefan Mai | Blog

API Design for System Design Interviews

Jul 21, 2025 by Evan King | Deep Dive

July 14 - 20, 2025

7 updates

New Content

How to scale reads in your system design interview

Premium

Jul 17, 2025 by Evan King | System Design

Software Engineer Salary Negotiation

Jul 15, 2025 by Glenn Gertler | Content

Knowing Who You're Talking To In Salary Negotiation

Jul 15, 2025 by Glenn Gertler | Content

Compensation Breakdown

Jul 15, 2025 by Glenn Gertler | Content

How to Safely Negotiate

Jul 15, 2025 by Glenn Gertler | Content

New Videos

Design a Payment System like Stripe

Premium

Jul 14, 2025 by Evan King | System Design

Updated Content

System Design Interview Patterns

Complete rewrite adding 7 pattern sections (Realtime Updates, Long-Running Tasks, Contention, Scaling Reads/Writes, Large Blobs, Multi-Step Processes) with diagrams and deep-dive links.Jul 18, 2025 by Evan King, Stefan Mai | Quick Guide

July 7 - 13, 2025

5 updates

New Content

Dealing with Contention Pattern for System Design Interviews

Premium

Jul 10, 2025 by Evan King | System Design

Multi-step Processes Pattern for System Design Interviews

Premium

Jul 10, 2025 by Stefan Mai | System Design

How to scale writes in your system design interview

Premium

Jul 10, 2025 by Stefan Mai | System Design

When to Use Event Driven Architecture In System Design Interviews

Jul 9, 2025 by Evan King | Blog

Updated Content

Design a Payment System like Stripe

Premium

Jul 11, 2025 | System Design

June 30 - July 6, 2025

2 updates

New Content

Handling Large Blobs Pattern for System Design Interviews

Premium

Jul 3, 2025 by Evan King | System Design

Bot Detection ML System Design

Jul 2, 2025 by Shivani Rao, Stefan Mai | ML System Design

June 23 - 29, 2025

2 updates

New Content

How to Ramp Up Like a Pro: Your First 90 Days Matter More Than You Think

Jun 26, 2025 by Stefan Mai | Blog

Managing Long Running Tasks Pattern for System Design Interviews

Premium

Jun 26, 2025 by Evan King | System Design

June 16 - 22, 2025

2 updates

New Videos

Design a Price Tracking Service like CamelCamelCamel

Premium

Jun 22, 2025 by Evan King | System Design

Design Facebook's Post Search

Jun 19, 2025 by Stefan Mai | System Design

June 9 - 15, 2025

1 updates

New Content

"Should I join a start up or Big Tech?"

Jun 12, 2025 by Evan King | Blog

June 2 - 8, 2025

3 updates

New Content

Design a Price Tracking Service like CamelCamelCamel

Premium

Jun 4, 2025 by Evan King | System Design

Design a News Aggregator like Google News

Premium

Jun 2, 2025 by Evan King | System Design

New Videos

Design Facebook's News Feed

Jun 5, 2025 by Stefan Mai | System Design

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