LeetJourney - Invidious

LeetJourney

Welcome! 👋 You're in the right place if you want to ace your technical interviews and level up as a software engineer.

I'm a Senior Software Engineer with years of hands-on experience at multiple tech companies. I created this channel to share the tips, knowledge, and real-world insights I wish I had when I was starting out — from AI, Java, Spring Boot, and system design, to interview prep and career advice.

Whether you're a student, a junior dev, or someone aiming to break into the industry, there's something here for you.

Subscribe and let's grow together as engineers. 🚀

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16:30

The Spring Security Filter Chain, Finally Explained

LeetJourney

Shared 6 days ago

694 views

15:32

Tips and Tricks on building apps using Claude Code AI

LeetJourney

Shared 2 weeks ago

494 views

5:52

Your SQL Database Won't Open? How to Repair a Corrupt MS SQL DB

LeetJourney

Shared 1 month ago

95 views

16:43

Most Asked Spring Boot Interview Questions & Answers (in 2026) [Part 2]

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Shared 1 month ago

377 views

2:18:35

Spring Boot - Beginner to Intermediate - Full 2 Hours Course (2026)

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Shared 4 months ago

12K views

6:01

Spring Boot 4 - Actuator Endpoints (Part 13) | Beginner to Intermediate - REST API

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Shared 4 months ago

349 views

3:27

Spring Boot 4 - Spring Profiles (Part 12) | Beginner to Intermediate - REST API

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Shared 4 months ago

150 views

9:10

Spring Boot 4 - Application Properties (Part 11) | Beginner to Intermediate - REST API

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Shared 4 months ago

187 views

10:09

Spring Boot 4 - Entity Relationships (Part 10) | Beginner to Intermediate - REST API

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Shared 4 months ago

245 views

9:03

Spring Boot 4 - Filtering (Part 9) | Beginner to Intermediate - REST API

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Shared 4 months ago

379 views

6:25:28

Spring Boot 4 - Microservices portfolio project with Java - Full Course (2026)

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Shared 5 months ago

29K views

20:44

Spring Boot 4 Microservices Project - Home Energy Tracker - Testcontainers (Part 15 - FINAL)

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Shared 5 months ago

359 views

16:02

Spring Boot 4 Microservices Project - Home Energy Tracker - Observability (Part 14)

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Shared 5 months ago

300 views

18:18

Spring Boot 4 Microservices Project - Home Energy Tracker - Open API Docs and Swagger UI (Part 13)

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Shared 5 months ago

456 views

15:58

Spring Boot 4 Microservices Project - Home Energy Tracker - JWT & Keycloak OAuth2 (Part 12)

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Shared 5 months ago

534 views

4:07

Spring Boot 4 Microservices Project - Home Energy Tracker - AI AGENTS.md File (Part 11)

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Shared 5 months ago

330 views

18:11

Spring Boot 4 Microservices Project - Home Energy Tracker - Circuit Breaker Pattern (Part 10)

LeetJourney

Shared 6 months ago

363 views

13:14

Spring Boot 4 Microservices Project - Home Energy Tracker - API Gateway (Part 9)

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Shared 6 months ago

672 views

10:14

Spring Boot 4 - Pagination and Sorting (Part 8) - JPA | Beginner to Intermediate - REST API

LeetJourney

Shared 8 months ago

716 views

10:29

Spring Boot 4: The NEW Way to Call REST APIs (HTTP Interface Client Explained)

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Shared 8 months ago

1.5K views

42:24

Spring Boot 4 Microservices Project - Home Energy Tracker - Insight Service & Ollama (Part 8)

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Shared 8 months ago

627 views

10:58

Spring Boot 4 - DTOs - Data Transfer Objects (Part 7) | Beginner to Intermediate - REST API

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Shared 8 months ago

791 views

5:59

Spring Boot 4 - Input Validation (Part 6) | Beginner to Intermediate - Jakarta Bean Validation

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Shared 8 months ago

632 views

24:01

Most Asked Spring Boot Interview Questions & Answers (in 2026)

LeetJourney

Shared 8 months ago

3.2K views

12:43

Spring Boot 4 - Exceptions (Part 5) | Beginner to Intermediate - REST API

LeetJourney

Shared 8 months ago

643 views

23:25

Spring Boot 4 Microservices Project - Home Energy Tracker - Alert Service & Mailpit SMTP (Part 7)

LeetJourney

Shared 8 months ago

547 views

9:42

Spring Boot 4 - Service Layer (Part 4) | Beginner to Intermediate - REST API

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Shared 9 months ago

897 views

56:26

Spring Boot 4 Microservices Project - Home Energy Tracker - Usage Service & Influx DB (Part 6)

LeetJourney

Shared 9 months ago

681 views

26:19

Spring Boot 4 - Spring Data JPA (Part 3) | Beginner to Intermediate - REST API

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Shared 9 months ago

949 views

12:59

I Vibe Coded a Live Flight Tracker in 10 minutes - Google Antigravity

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Shared 9 months ago

871 views

16:11

Spring Boot 4 - CRUD Endpoints (Part 2) | Beginner to Intermediate - REST API

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Shared 9 months ago

1.2K views

8:48

Spring Boot 4 - Project Structure and Rest Controller (Part 1) | Beginner to Intermediate - REST API

LeetJourney

Shared 9 months ago

3.4K views

42:04

Spring Boot 4 Microservices Project - Home Energy Tracker - Ingestion Service & Kafka (Part 5)

LeetJourney

Shared 9 months ago

982 views

11:19

How to run Kafka KRaft Mode - with Kafbat UI - Docker Compose

LeetJourney

Shared 9 months ago

2K views

34:40

Spring Boot 4 - Full Microservices course - Home Energy Tracker - Device Service (Part 4)

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Shared 9 months ago

863 views

10:21

Spring Boot 4 - Full Microservices course - Home Energy Tracker - Migration Guide (Part 3)

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Shared 9 months ago

640 views

9:56

How to migrate to Spring Boot 4

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Shared 9 months ago

3.7K views

53:15

Spring Boot 4 - Full Microservices course - Home Energy Tracker - User Service (Part 2)

LeetJourney

Shared 9 months ago

1.9K views

5:57

Spring Boot 4 - What's new in this release?

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Shared 9 months ago

4.5K views

16:48

Spring Boot 4 - Full Microservices course - Home Energy Tracker - System Design (Part 1)

LeetJourney

Shared 9 months ago

3.7K views

30:36

Java for coding interviews - 30 Minutes Crash Course

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Shared 10 months ago

901 views

19:23

Load Testing a Spring Boot REST API (with JMeter)

LeetJourney

Shared 10 months ago

1.4K views

20:54

How to build an MCP Server with Spring AI (with MCP Host set up in Claude Desktop)

LeetJourney

Shared 10 months ago

1.4K views

4:41

MCP Explained - Model Context Protocol - MCP Server vs MCP Host vs MCP Client

LeetJourney

Shared 11 months ago

2.5K views

29:40

How Brilliant Helped Me Build an Image Processing API (Spring Boot Tutorial)

LeetJourney

Shared 11 months ago

663 views

11:26

How to mock APIs using Postman - Mock Servers

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Shared 11 months ago

404 views

4:37

Authentication 101 - When to use which? Bearer, OAuth2, JWT, Kerberos, SSO

LeetJourney

Shared 1 year ago

933 views

28:57

JWT Authentication with Spring Security | Full Spring Boot Example

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Shared 1 year ago

11K views

17:37

Spring Security - Login Form

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Shared 1 year ago

907 views

49:20

Spring Boot Stock Tracker - Portfolio Project - REST API

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Shared 1 year ago

4.4K views

10:26

Time Limiter in Resilience4j | Stop Long-Running Calls in Spring Boot

LeetJourney

Shared 1 year ago

596 views

8:15

Retry Mechanism - Resilience 4J + Spring Boot Implementation Example

LeetJourney

Shared 1 year ago

773 views

9:56

API Rate Limiter - Resilience4J + Spring Boot Implementation Example

LeetJourney

Shared 1 year ago

2.2K views

12:27

Circuit Breaker Pattern - Resilience4J + Spring Boot Implementation Example

LeetJourney

Shared 1 year ago

1.3K views

12:40

Spring AI Intro: Integrate LLM in Spring Boot with Ollama (with OllamaChatModel)

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Shared 1 year ago

1.5K views

15:10

What is Aspect Oriented Programming (AOP) in Spring Boot - Code Example

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Shared 1 year ago

5.1K views

23:25

How I built a Leetcode AI Overlay - Python & Ollama

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Shared 1 year ago

1.6K views

27:11

Kafka + Springboot - Asynchronous communication implementation

LeetJourney

Shared 1 year ago

2K views

47:48

Springboot 3 + AI - Daily News Brief Service with dynamically generated HTML - Portfolio Project

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Shared 1 year ago

1.9K views

14:13

Build a Real-Time AI Interview Assistant - Python & Ollama Portfolio Project

LeetJourney

Shared 1 year ago

4.7K views