I am a software engineer with over 3 years of experience specializing in Java, Spring Boot, RESTful APIs, and backend development. Through Dev Portal, I aim to simplify complex technical concepts and help developers.

With a strong focus on Java, Object-Oriented Programming, PostgreSQL, and coding best practices, I share tutorials that are not only educational but also practical for interviews and project development.

My channel features:
- Java Programming: From basics to advanced concepts, including OOP, Exception handling, Stream APIs and more.
- PostgreSQL: In-depth tutorials on database fundamentals, performance optimization, and SQL mastery.
- Mini-Projects: Building real-world applications like Dummy Instagram and Bank Management Systems to apply concepts hands-on.

Whether you're a beginner starting your coding journey or an experienced developer looking to sharpen your expertise, Dev Portal has something for you.

How to Handle 1 Lakh Likes in 1 Minute | Redis Bulk Update Explained with RCB’s IPL 2025 Win
30:24
How to Handle 1 Lakh Likes in 1 Minute | Redis Bulk Update Explained with RCB’s IPL 2025 Win
Bitmap Index Scan in PostgreSQL | When & Why PostgreSQL Uses It for Better Performance
19:44
Bitmap Index Scan in PostgreSQL | When & Why PostgreSQL Uses It for Better Performance
Build a Complete URL Shortener with Spring Boot & PostgreSQL | System Design + Code Walkthrough
1:01:55
Build a Complete URL Shortener with Spring Boot & PostgreSQL | System Design + Code Walkthrough
PostgreSQL Index Scan vs Index-Only Scan | Real Examples, Performance Tips & EXPLAIN ANALYZE Guide
19:33
PostgreSQL Index Scan vs Index-Only Scan | Real Examples, Performance Tips & EXPLAIN ANALYZE Guide
Why PostgreSQL Ignores Index & Uses Sequential Scan | Real Examples + Fixes
24:08
Why PostgreSQL Ignores Index & Uses Sequential Scan | Real Examples + Fixes
What is an Index in Database? | Sequential vs. Index Scan | PostgreSQL Performance Tuning
20:21
What is an Index in Database? | Sequential vs. Index Scan | PostgreSQL Performance Tuning
Master SQL Subqueries | Single-row | Multi-row | Correlated | Uncorrelated Subqueries
16:54
Master SQL Subqueries | Single-row | Multi-row | Correlated | Uncorrelated Subqueries
Functional Interface in Java (With Real-World Examples) | Java 8 Feature
13:23
Functional Interface in Java (With Real-World Examples) | Java 8 Feature
Java Threads Tutorial – Thread Pools & Executors Explained with Examples | Fixed, Cached, Scheduled
18:44
Java Threads Tutorial – Thread Pools & Executors Explained with Examples | Fixed, Cached, Scheduled
SQL Window Functions Explained (ROW_NUMBER, RANK, LAG, LEAD, SUM, AVG) | SQL Tutorial
20:22
SQL Window Functions Explained (ROW_NUMBER, RANK, LAG, LEAD, SUM, AVG) | SQL Tutorial
Inter-Thread Communication – wait(), notify(), notifyAll() and Producer-Consumer Problem
30:31
Inter-Thread Communication – wait(), notify(), notifyAll() and Producer-Consumer Problem
Locks vs Atomic Variables – Solve Concurrency Issues Like a Pro
14:09
Locks vs Atomic Variables – Solve Concurrency Issues Like a Pro
PostgreSQL Performance Optimization: Remove Dead Tuples & Reindex for Faster Queries
15:15
PostgreSQL Performance Optimization: Remove Dead Tuples & Reindex for Faster Queries
Java Threads Tutorial | Mastering Thread Synchronization | Synchronized Methods & Blocks Explained
13:21
Java Threads Tutorial | Mastering Thread Synchronization | Synchronized Methods & Blocks Explained
PostgreSQL Materialized Views Explained | Boost Query Performance & Optimize Large Datasets
14:29
PostgreSQL Materialized Views Explained | Boost Query Performance & Optimize Large Datasets
Thread Lifecycle in Java - From Creation to Termination
16:51
Thread Lifecycle in Java - From Creation to Termination
PostgreSQL Views Tutorial | Create, Modify & Drop Views | Best Practices & Use Cases
16:49
PostgreSQL Views Tutorial | Create, Modify & Drop Views | Best Practices & Use Cases
Creating Threads in Java | Extending Thread Class | Implementing Runnable | Using Callable & Future
15:29
Creating Threads in Java | Extending Thread Class | Implementing Runnable | Using Callable & Future
PostgreSQL Cursors Explained | How to Use Cursors for Large Data Processing in PL/pgSQL
11:59
PostgreSQL Cursors Explained | How to Use Cursors for Large Data Processing in PL/pgSQL
Introduction to Multithreading | What is a Thread? | Process vs Thread | Benefits of Multithreading
4:05
Introduction to Multithreading | What is a Thread? | Process vs Thread | Benefits of Multithreading
PostgreSQL Functions Explained: Create, Call & Manage Functions | Dev Portal
15:13
PostgreSQL Functions Explained: Create, Call & Manage Functions | Dev Portal
Why We Write public static void main(String[] args) in Java? | Java Interview Questions Explained
16:33
Why We Write public static void main(String[] args) in Java? | Java Interview Questions Explained
PostgreSQL Stored Procedures Explained | Create, Call & Manage Transactions
14:02
PostgreSQL Stored Procedures Explained | Create, Call & Manage Transactions
SQL FULL JOIN Explained with Examples | SQL Joins Tutorial
4:21
SQL FULL JOIN Explained with Examples | SQL Joins Tutorial
Understanding RIGHT JOIN in SQL | SQL Right Joins Explained | Dev Portal
5:05
Understanding RIGHT JOIN in SQL | SQL Right Joins Explained | Dev Portal
Java == vs equals() Explained | Key Differences & Best Practices with Examples
10:40
Java == vs equals() Explained | Key Differences & Best Practices with Examples
Master LEFT JOIN in SQL | Combine Tables & Keep All Rows from the Left Table | Dev Portal
4:53
Master LEFT JOIN in SQL | Combine Tables & Keep All Rows from the Left Table | Dev Portal
Understanding String Pool in Java | Memory Optimization & Best Practices | Interview Question Guide
8:00
Understanding String Pool in Java | Memory Optimization & Best Practices | Interview Question Guide
Master INNER JOIN in SQL | Combine Data from Multiple Tables | SQL Tutorial
6:15
Master INNER JOIN in SQL | Combine Data from Multiple Tables | SQL Tutorial
String vs StringBuilder vs StringBuffer in Java | Key Differences & Performance Comparison
18:20
String vs StringBuilder vs StringBuffer in Java | Key Differences & Performance Comparison