# Dineth Hettiarachchi

> Building intelligent systems. Shipping what matters.

This is the canonical portfolio website for Dineth Hettiarachchi, an AI/ML Engineer & Creative Technologist based in Colombo, Sri Lanka. The site contains project case studies, technical blog posts, service offerings, and machine-readable markdown routes for AI assistants and search systems.

## Canonical Pages

- [Home](https://deaneeth.vercel.app/)
- [Projects](https://deaneeth.vercel.app/projects)
- [Blogs](https://deaneeth.vercel.app/blogs)
- [Services](https://deaneeth.vercel.app/services)
- [About Markdown](https://deaneeth.vercel.app/about.md)
- [Projects Markdown](https://deaneeth.vercel.app/projects.md)
- [Blogs Markdown](https://deaneeth.vercel.app/blogs.md)
- [Services Markdown](https://deaneeth.vercel.app/services.md)

## Services

- [AI/ML Solutions](https://deaneeth.vercel.app/services#ai-ml-solutions): End-to-end ML systems - data pipelines, model training with PyTorch or TensorFlow, experiment tracking, and production deployment with FastAPI and Docker. MLOps-focused engineering, not demo projects.
- [Full Stack Development](https://deaneeth.vercel.app/services#full-stack-development): Web applications and APIs built for ML and data products. React/Next.js frontends, FastAPI backends, PostgreSQL optimisation, and cloud deployment with CI/CD.
- [AI Chatbot & Automation](https://deaneeth.vercel.app/services#ai-chatbot-automation): Production RAG chatbots and LLM-powered automation pipelines. Retrieval-augmented generation, vector databases, LangChain/LlamaIndex, and workflow automation.
- [Design & Presentations](https://deaneeth.vercel.app/services#design-services): Technical presentation design and visual communication for AI, data, and SaaS products. Pitch decks, UI/UX prototypes, and brand identity that make complex ideas clear.

## Featured Projects

- [MLOmics](https://deaneeth.vercel.app/projects/mlomics): End-to-end multi-omics cancer subtype classifier using TCGA data, PyTorch fusion models, and explainable AI.
- [Telco Churn MLOps Pipeline](https://deaneeth.vercel.app/projects/telco-churn-mlops-pipeline): Production-grade MLOps pipeline for telecom churn prediction with Kafka streaming, Airflow orchestration, MLflow tracking, and Docker deployment.
- [Customer Churn Prediction Pipeline](https://deaneeth.vercel.app/projects/customer-churn-prediction-pipeline): Three-repository churn prediction progression from EDA and preprocessing to model training, evaluation, and a production-oriented pipeline.
- [TinyGPU](https://deaneeth.vercel.app/projects/tiny-gpu): A lightweight Python GPU architecture simulator that visualizes parallel threads, registers, memory, and instruction execution.
- [TinyTPU](https://deaneeth.vercel.app/projects/tiny-tpu): A real synthesizable SystemVerilog 4×4 systolic array compiled to WebAssembly and visualized live in the browser.
- [BrainUs AI](https://deaneeth.vercel.app/projects/brainus-ai): AI-powered educational platform for Sri Lankan O/L and A/L students with curriculum-grounded RAG retrieval and citation-aware answers.
- [Smart Beehive Monitor](https://deaneeth.vercel.app/projects/smart-beehive-monitor): ESP32-based IoT system for real-time beehive monitoring with environmental sensors, weight, GPS, solar power, and Firebase dashboard.
- [E-commerce Repeat Buyer Prediction](https://deaneeth.vercel.app/projects/ecommerce-repeat-buyer-prediction): Big data ML pipeline using PySpark and Databricks to predict repeat buyers from 20.7M clickstream events with Spark MLlib.
- [Behavioral Biometric Authentication](https://deaneeth.vercel.app/projects/behavioral-biometric-authentication): Deep learning-based behavioral biometric authentication using smartphone gait data with 3.43% EER and 92.68% accuracy.
- [Enterprise Cinema Booking Platform](https://deaneeth.vercel.app/projects/enterprise-cinema-booking-platform): Scalable multi-tenant cinema management platform with real-time seat reservation via WebSockets, RBAC, PayPal payments, QR tickets, and Docker deployment.
- [FurnishView](https://deaneeth.vercel.app/projects/furnish-view): Zero-build browser room-design tool with a hand-coded 2D Canvas engine, Three.js 3D visualization, localStorage persistence, and HCI usability evaluation.
- [Whisper](https://deaneeth.vercel.app/projects/whisper): Anonymous P2P gossip platform using cryptographic keys, AES-256 encryption, offline-first storage, and decentralized sync.

## Latest Blog Posts

- [Building a Full-Stack ESP32 IoT Project for Smart Beehive Monitoring](https://deaneeth.vercel.app/blog/full-stack-esp32-iot-smart-beehive-monitor): How I built a complete smart beehive monitoring system end-to-end: ESP32 firmware with environmental and activity sensors, solar-powered edge deployment, Firebase Realtime Database sync, and a React TypeScript dashboard for live hive metrics, bee traffic, weight tracking, GPS, and alerts.
- [I Built a TPU You Can Watch Run: Every Signal in Real Time](https://deaneeth.vercel.app/blog/tiny-tpu-visual-simulator-real-time-signals): A hands-on engineering breakdown of TinyTPU, a visual TPU simulator that shows matrix multiplication, systolic arrays, chip signals, and AI accelerator behavior in real time.
- [I Built a Tiny GPU Simulator to See What Happens When Threads Execute in Parallel](https://deaneeth.vercel.app/blog/tiny-gpu-simulator-parallel-threads): A hands-on engineering breakdown of TinyGPU, a small GPU simulator that visualizes how threads, warps, memory, and parallel execution work inside GPU-style systems.
- [From Bees to Bytes: My Journey Building a Simple AI to Protect a Beehive](https://deaneeth.vercel.app/blog/from-bees-to-bytes-building-ai-beehive): How I built a simple AI beehive monitor using Azure Custom Vision to detect Varroa mites from hive images - an IoT + ML side project focused on shipping fast instead of chasing perfection.

## Feeds And Discovery

- [Sitemap](https://deaneeth.vercel.app/sitemap.xml)
- [RSS Feed](https://deaneeth.vercel.app/feed.xml)
- [robots.txt](https://deaneeth.vercel.app/robots.txt)