Hi, I'm Amritanka
Software Developer with expertise in Java, Spring Boot, Microservices, Cloud Technologies, and AI-powered systems. Passionate about designing clean, scalable architectures and leveraging modern AI solutions to build innovative, high-performance applications.
Skills & Expertise
Backend / Java
Frontend / Full-Stack
AI / Automation
Cloud / DevOps
Featured Projects
Spring AI RAG Chat Application with Ollama and PGVector
A reference implementation of Retrieval Augmented Generation (RAG) built with Spring AI, locally hosted LLMs via Ollama, and PostgreSQL + pgvector for vector storage — a fully local, no-cloud-API-keys personal assistant for Spring Boot.
Product Management System
A full-stack web application for managing product inventory — built with Spring Boot 3, React 18, Vite, Tailwind CSS, and Docker.
Building a WhatsApp Order Automation System with n8n and Node.js
A full walkthrough of building a WhatsApp Business chatbot for order management using n8n visual workflows, Node.js, Express, and SQLite — no manual order-taking required.
Latest Posts
SOAP Protocol: The Complete Guide
A hands-on deep dive into SOAP — from XML envelopes and WSDL contracts to a real Service ↔ Client implementation using Spring Boot and Spring-WS.
Fullstack Multi-Agent Orchestration for GitHub Copilot: A Production-Ready Reference Architecture
A production-ready, full-stack multi-agent orchestration pattern for GitHub Copilot — using custom agents, prompts, skills, reusable workflows, and a human-in-the-loop review gate to build React + Spring Boot features end-to-end.
GitHub Copilot Token Optimization: 10 Tips to Slash Your AI Bill
A practical guide to cutting GitHub Copilot token usage by 40-70% — covering output rules, terse prompting, instruction files, model routing, and usage monitoring.