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ruwzeta/README.md
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About Me

Lead Software Engineer at Metric Health Solutions building scalable data integration and reporting solutions for healthcare technology. I bring 4+ years of experience across software engineering, data analytics, and AI — bridging technical development with actionable business insights.

https://ruwindhuhettige.com

  • 🎓 BEng Software Engineering — Staffordshire University
  • 📜 Graduate Certificates in Big Data Analytics & AI — Georgian College
  • 🏆 Innvo8 Competition Award for Innovative Data Analysis
  • 🤖 Running a small AI & Data Consulting agency helping SMBs integrate AI and analytics
  • 🧠 Building production LLM apps with RAG, agents, tool use & evals across OpenAI, Anthropic and open-weight models
  • ⚡ Daily driver of coding agents (Claude Code, Cursor, GitHub Copilot) for shipping faster end-to-end
  • 🏀 Passionate about sports analytics — NBA, Cricket & MLB
  • 💬 Ask me about Python, C#, Machine Learning, Generative AI & Backend Development
  • 💞 Open to collaborating on ML Research and AI Projects

LLMs, Coding Agents & AI Projects

Working with LLMs and agentic systems is a core part of my day-to-day — from prototyping to shipping production-grade workflows.

What I build with LLMs

  • Retrieval-Augmented Generation (RAG) pipelines over healthcare and enterprise documents — chunking, hybrid search, reranking and grounded answer generation
  • Agentic workflows with tool use, function calling and multi-step planning (LangGraph, LlamaIndex, CrewAI, OpenAI Agents SDK, Anthropic Claude Agent SDK)
  • Structured extraction & data enrichment from unstructured clinical/operational data using JSON-mode and constrained decoding
  • Evals & guardrails — offline benchmarks, regression tests, prompt versioning and red-team prompts for safety
  • Fine-tuning & adaptation — LoRA/QLoRA on open-weight models (Llama, Mistral, Qwen) for domain-specific tasks
  • Voice & multimodal experiments combining Whisper, vision models and TTS

Coding agents I use

  • Claude Code — primary terminal coding agent for repo-wide refactors, test generation, and end-to-end feature delivery
  • Codex — primary terminal coding agent for repo-wide refactors, test generation, and end-to-end feature delivery
  • GitHub Copilot — completions and PR review assistance
  • Codex - Feature generation, ideation and high level code review
  • Custom in-house agents — built with Claude Agent SDK / OpenAI Agents SDK for automating internal workflows (data ingestion, report generation, support triage)

Selected AI projects

  • Healthcare reporting copilot — natural-language → SQL over a clinical data warehouse with row-level security and grounded citations
  • Document intelligence pipeline — multi-modal extraction (PDFs, scans, tables) with vision-language models and structured output
  • Sports analytics agent — autonomous research agent that pulls live stats and generates pre-game NBA/Cricket briefings
  • SMB AI starter kits — RAG chatbots, lead-qualification agents and analytics copilots delivered via my consulting practice
  • Power Generation Prection Models - Optimized ML and Deep Learning Models for power generation plants

Tech Stack

Languages

Python C# Java TypeScript JavaScript C++ Scala R Bash ![Mojo]

Frontend & Mobile

React Next.js Flutter React Native Android HTML5 CSS3 Tailwind Sass

Backend & Frameworks

Django Flask FastAPI .NET Spring Node.js

Databases

PostgreSQL MySQL SQL Server Oracle MongoDB Cassandra Elasticsearch SQLite

Cloud & DevOps

AWS Azure GCP Git Jenkins Kafka Hadoop Hive

Data, ML & BI

TensorFlow PyTorch scikit-learn Pandas OpenCV Power BI Tableau Looker

LLMs, Agents & GenAI

OpenAI Anthropic Hugging Face LangChain LlamaIndex Ollama Pinecone Weaviate Chroma

Coding Agents & Dev Productivity

Claude Code GitHub Copilot

Testing & Tools

Postman Selenium Playwright Figma Chart.js


GitHub Stats

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  1. alcholsalespredictioniowa alcholsalespredictioniowa Public

    Jupyter Notebook 3

  2. NBA-Analytics NBA-Analytics Public

    NBA Analytics Project which uses Python to Scrape data via Selenium

    Jupyter Notebook 1

  3. anthropmetricsystem anthropmetricsystem Public

    Body measurement extraction using image processing

    JavaScript 1

  4. twitter-sentiment twitter-sentiment Public

    Jupyter Notebook 1