Andrey Tech

@UCg7tjrWM7faab20JFG_2plg - 9.2K subscribers

Ex-Lead Software Engineer at Meta. Educational & entertainment tech videos here. Business inquiries: [email protected] 🚀 Struggling with Big Tech interview prep? Book a 1-on-1 mentorship session to master mobile system design, coding, and behavioral rounds, with realistic mock interviews and actionable feedback from an ex-Meta engineer. 👉 andrey-tech.com 🏆 Want to support the channel and get priority replies to your questions? Become a member: youtube.com/@andrey_tech/join

Home Videos Live Playlists

Google’s Recommended App Architecture Explained (Android & iOS)

Google’s Recommended App Architecture Explained (Android & iOS) Andrey Tech

877 views - 6 days ago

How to Get Promoted as a Software Engineer: A Practical Strategy

How to Get Promoted as a Software Engineer: A Practical Strategy Andrey Tech

452 views - 1 month ago

Senior iOS Engineer Mock Interview - Hotel Booking System Design

Senior iOS Engineer Mock Interview - Hotel Booking System Design Andrey Tech

3K views - 2 months ago

GraphQL Explained Simply for Mobile Engineers

GraphQL Explained Simply for Mobile Engineers Andrey Tech

570 views - 2 months ago

Top 5 iOS Coding Interview Types (and How to Prepare)

Top 5 iOS Coding Interview Types (and How to Prepare) Andrey Tech

1.9K views - 3 months ago

Behavioral Mock Interview with Staff ML Engineer

Behavioral Mock Interview with Staff ML Engineer Andrey Tech

1.6K views - 3 months ago

WebSockets Explained Simply - by Ex-Meta Lead Engineer

WebSockets Explained Simply - by Ex-Meta Lead Engineer Andrey Tech

4.4K views - 3 months ago

Applying on LinkedIn Doesn’t Work Anymore — Do This Instead

Applying on LinkedIn Doesn’t Work Anymore — Do This Instead Andrey Tech

983 views - 4 months ago

Mobile System Design - Design Youtube App

Mobile System Design - Design Youtube App Andrey Tech

3.4K views - 4 months ago

Lead Android Engineer Mock Interview – Facebook App System Design

Lead Android Engineer Mock Interview – Facebook App System Design Andrey Tech

12.7K views - 4 months ago

REST API Explained for Mobile Engineers (by Ex-Meta Lead Engineer)

REST API Explained for Mobile Engineers (by Ex-Meta Lead Engineer) Andrey Tech

1.7K views - 4 months ago

4 Common Mistakes in Mobile System Design Interviews

4 Common Mistakes in Mobile System Design Interviews Andrey Tech

4.9K views - 6 months ago

Behavioral Interview: Example Answer for a Past Failure Question

Behavioral Interview: Example Answer for a Past Failure Question Andrey Tech

911 views - 6 months ago

Behavioral Interview: Example Answer for a Conflict Question

Behavioral Interview: Example Answer for a Conflict Question Andrey Tech

1.1K views - 6 months ago

Behavioral Interview: Full Preparation Guide for Software Engineers

Behavioral Interview: Full Preparation Guide for Software Engineers Andrey Tech

2.8K views - 7 months ago

Dependency Injection in iOS Explained (with SwiftUI)

Dependency Injection in iOS Explained (with SwiftUI) Andrey Tech

1.8K views - 7 months ago

What You Need to Know for Mobile System Design (free mind map)

What You Need to Know for Mobile System Design (free mind map) Andrey Tech

6.4K views - 8 months ago

iOS Interview Question: Build a World Clock App in SwiftUI

iOS Interview Question: Build a World Clock App in SwiftUI Andrey Tech

1.5K views - 8 months ago

Design Messenger - Mobile System Design Mock Interview

Design Messenger - Mobile System Design Mock Interview Andrey Tech

17K views - 9 months ago

Why Tech Interviews Feel Harder Than Ever

Why Tech Interviews Feel Harder Than Ever Andrey Tech

1.4K views - 9 months ago

How to Build a File Downloader - Mobile System Design

How to Build a File Downloader - Mobile System Design Andrey Tech

3.7K views - 9 months ago

What's it Really Like to Work at Meta - Pros & Cons

What's it Really Like to Work at Meta - Pros & Cons Andrey Tech

5.8K views - 10 months ago

Top 5 Mobile System Design Concepts Explained

Top 5 Mobile System Design Concepts Explained Andrey Tech

5.4K views - 10 months ago

How to Survive in 2025 Tech Job Market?

How to Survive in 2025 Tech Job Market? Andrey Tech

4.1K views - 10 months ago

iOS Architecture in the Era of SwiftUI

iOS Architecture in the Era of SwiftUI Andrey Tech

9.3K views - 11 months ago

Trie Data Structure Explained — Stop Using Arrays for Search

Trie Data Structure Explained — Stop Using Arrays for Search Andrey Tech

1K views - 11 months ago

Spotify Staff Software Engineer Interview Revealed

Spotify Staff Software Engineer Interview Revealed Andrey Tech

13.6K views - 1 year ago

Rotting Oranges Explained | LeetCode 994 Solution

Rotting Oranges Explained | LeetCode 994 Solution Andrey Tech

685 views - 1 year ago

How I learned to code (and make iOS apps)

How I learned to code (and make iOS apps) Andrey Tech

1.4K views - 1 year ago

Uber's Staff Software Engineer Interview Exposed

Uber's Staff Software Engineer Interview Exposed Andrey Tech

121.1K views - 2 years ago

Design Uber Eats - iOS System Design Interview

Design Uber Eats - iOS System Design Interview Andrey Tech

48.4K views - 2 years ago

Exploring UI Design Patterns: MVC, MVP, and MVVM

Exploring UI Design Patterns: MVC, MVP, and MVVM Andrey Tech

7.1K views - 2 years ago

Meta Sofware Engineer Interview Experience

Meta Sofware Engineer Interview Experience Andrey Tech

23.3K views - 2 years ago

Move Zeroes - Leetcode 283 - Swift Solution

Move Zeroes - Leetcode 283 - Swift Solution Andrey Tech

556 views - 2 years ago

Relocation to London as a Software Engineer

Relocation to London as a Software Engineer Andrey Tech

3.4K views - 2 years ago

Balance a Binary Search Tree - Leetcode 1382 - Swift Solution

Balance a Binary Search Tree - Leetcode 1382 - Swift Solution Andrey Tech

796 views - 2 years ago

Container With Most Water - Leetcode 11 - Swift Solution

Container With Most Water - Leetcode 11 - Swift Solution Andrey Tech

540 views - 2 years ago

How to use Leetcode effectively

How to use Leetcode effectively Andrey Tech

2.2K views - 2 years ago

SOLID principles explained with iOS examples

SOLID principles explained with iOS examples Andrey Tech

7.7K views - 3 years ago

Design Story Viewer - iOS System Design Interview

Design Story Viewer - iOS System Design Interview Andrey Tech

12.2K views - 3 years ago

Design Instagram News Feed - iOS System Design Interview

Design Instagram News Feed - iOS System Design Interview Andrey Tech

32.4K views - 3 years ago

Mobile System Design Interview Guide

Mobile System Design Interview Guide Andrey Tech

53.1K views - 3 years ago

Steam Friends List App - iOS System Design Interview

Steam Friends List App - iOS System Design Interview Andrey Tech

26K views - 3 years ago