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Nandha-Kishore-K-B/README.md

Nandha Kishore K B

Software Developer, specialized in leveraging the Java, Spring Boot, and PostgreSQL ecosystem to build robust, scalable, and high-performance enterprise-grade applications. I have a deep-seated passion for transforming complex technical challenges into elegant, efficient logic.

My Core Focus & Value:

System Architecting: Designing secure, multi-tenant architectures and robust REST APIs.

Engineering Performance: Implementing multi-threading, asynchronous processing, and advanced system design principles to deliver exceptional performance and scalability.

Backend Mastery: Deep expertise in Core Java, Spring Boot, Spring Security (RBAC), JPA, Hibernate, JDBC, and SQL.

CS Foundations: Solid understanding of Data Structures & Algorithms (300+ problems solved on LeetCode/HackerRank), Object-Oriented Principles, DBMS, Operating Systems, and standard design patterns (Singleton, Factory, DAO).

Highlighted Successes:

Mini SaaS Billing REST API: Architected a secure, multi-tenant SaaS backend with complex, dynamic data isolation via Hibernate Filters, RBAC, and asynchronous PDF generation using Spring Async. Optimized JPA repositories to eliminate N+1 query performance issues.

Wealth Wise (Behavioral Finance): Engineered complex financial algorithms for wealth tracking, including dynamic Fastlane Scores and Future Value projections, resulting in a 10x increase in savings rates for highly active users.

Wisdom Journal & Habit Tracker: Developed a productivity application utilizing MVC/DAO, with custom, data-driven streak-calculation and Habit Score algorithms. Deployed to an active user base, delivering reported productivity improvements.

Key Technical Skills:

💻 Languages: Java, SQL, C

🛠️ Technologies: Spring Boot, Spring Security, JPA, JDBC, Hibernate, RESTful APIs

⚙️ Tools: Docker, Git, GitHub, Postman, IntelliJ Idea, Flyway

🧠 Core CS: Data Structures & Algorithms, System Design, Multi-Tenant Architecture, Design Patterns, OOPS, DBMS

I am always eager to collaborate on challenging projects, learn new technologies, and push the boundaries of software engineering. Feel free to connect with me to discuss potential opportunities or technical challenges!

📩 Email: nandhakishorekb2005@gmail.com 📞 Phone: +91 7200962020

#Java #SpringBoot #PostgreSQL #BackendDeveloper #Docker #SoftwareEngineer #SystemDesign #RESTAPI #Microservices #DataStructures #Algorithms #MultiTenant #SaaS #FinTech #ProductivityApps

Pinned Loading

  1. wisdom-journal wisdom-journal Public

    Habit tracking app implementing Atomic Habits principles

    Java 1

  2. wealthwise-behavioral-finance wealthwise-behavioral-finance Public

    WealthWise Behavioral Finance & Wealth Tracker Based on Books Principles

    Java 1

  3. MiniBillingApplication MiniBillingApplication Public

    spring Boot Application

    Java 1