Part 3: User Registration & Default Role
Learn how to implement secure user registration with default role in Spring Boot. Full code walkthrough for production-ready apps.
Engineering Insights
Deep dives into Spring Boot development, system design, and data engineering—documenting my journey to build better software and smarter supply chains.
Featured Posts:
Part 3: User Registration & Default Role
Learn how to implement secure user registration with default role in Spring Boot. Full code walkthrough for production-r...
![Part 2: Why I Chose char[] for Passwords — And What I Learned](/_astro/P0nVCOqI.DZ_RjyqK_Z7DLIi.jpg "Part 2: Why I Chose char[] for Passwords — And What I Learned")
Part 2: Why I Chose char[] for Passwords — And What I Learned
I used char[] for passwords in my Spring app. Here’s why it’s not a magic bullet — and what actually matters for securit...
Part 1: Spring Security Setup in Spring Boot MVC with Thymeleaf
Learn how to set up Spring Security in a Spring Boot MVC app using Thymeleaf. SecurityFilterChain, form login, CSRF prot...
Post List:
Part 2: Why I Chose char[] for Passwords — And What I Learned
I used char[] for passwords in my Spring app. Here’s why it’s not a magic bullet — and what actually matters for security.
Part 1: Spring Security Setup in Spring Boot MVC with Thymeleaf
Learn how to set up Spring Security in a Spring Boot MVC app using Thymeleaf. SecurityFilterChain, form login, CSRF protection, an...
Chapter 3.5: Measuring Inventory & Supply Chain Efficiency
Discover how to calculate key supply chain metrics like Inventory Turnover, Fill Rate, and Service Level using SQL. Turn data into...
Chapter 3.4: Advertising & Marketing — SQL-Based KPI Engineering
Learn how to engineer core marketing KPIs using SQL from raw event data in BigQuery.
Chapter 3.3: Calculating Customer Experience KPIs
Analyze key metrics like delivery time, return rate, and OTIF to assess customer satisfaction and logistics performance.
Chapter 3.2: Sales & Profitability — Beyond Revenue
Learn how to calculate total sales and gross profit from eCommerce data using SQL.
Chapter 3.1: Data Cleaning & Prep for Reliable Insights
How I cleaned and prepared the TheLook dataset—handling missing values, duplicates, and ensuring data integrity for accurate KPIs.
Secure Docker Secrets on AWS: Real-World Guide
Secure Spring Boot + MySQL on AWS using Docker Secrets. No hardcoded passwords. Real-world config for secure, production-ready dep...
Mastering MySQL Backups & Restores in Docker: A Real-World Guide
When you're running a Spring Boot app with Docker, your data is everything. Here’s how I handle MySQL backups and restores — the r...
Chapter 2: Exploring the theLook eCommerce Database
A data analyst's hands-on exploration of the theLook eCommerce dataset in BigQuery, revealing how to understand an unfamiliar data...
The AI Accountability Gap: When Hype Outpaces Reality
Despite bold claims of revolution, AI is failing to deliver real economic value—replacing accountability more than jobs.
AI as Creative Augmentation — Power, Vulnerability, and Control
AI boosts creativity but isn't neutral. Its power lies in who controls the data. Explore the promise and risks of AI as a cognitiv...
Chapter 1: Unlocking eCommerce Success
Join me as I launch a comprehensive data analysis of TheLook, a realistic eCommerce platform.