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rogerdemello/README.md

Roger Demello

Portfolio LinkedIn Email All Projects


AI engineer who ships. I build agentic systems, RAG pipelines and the evaluation harnesses that prove they actually work — not notebooks that die in a folder.

🚀 Shipped 3 production LLM apps · 200+ users · 35% lower latency
🏆 Competed 🥈 2nd — ByteSize Sage AI National Hackathon · Finalist — Paytm × Sarvam × Logitech
☁️ Certified AWS Certified Cloud Practitioner (Oct 2025)
🎓 Studied B.Tech ECE, RCOEM · 8.90/10 · Minor in AI/ML 9.67/10

💼 Experience

AI Engineer Intern — AI LifeBOT · Jan – Jun 2026

  • Built 3 production LLM applications and autonomous agents using LangChain + GPT-4, serving 200+ users.
  • Architected end-to-end GenAI pipelines with RAG, vector databases, and real-time streaming, achieving 35% lower latency and 99.5% uptime.
  • Developed multi-agent orchestration with approval gates, telemetry, and audit logging.

ML Research Intern — CFM, RCOEM · May – Jul 2025

  • Built a clinical prediction system using 1,000+ patient records with biometric feature engineering, achieving 87% accuracy.
  • Reduced development time by 30% through pipeline optimization and rigorous cross-validation.

✨ Featured Work

🛰️ ML Guardian — autonomous ML reliability agent

Catches silent production failures — stale upstreams, creeping null rates, renamed columns — before a KPI moves. Runs a scan → score → incident → write-back → remediate loop over DataHub via MCP, naming the exact downstream models at risk and generating fail-fast remediation code. Ships with bundled fixtures: runs with no Docker and no API keys, one env var away from live.

Python FastAPI MCP DataHub Gemini GitHub Actions

🤖 Executive Email Copilot — agent benchmarking environment · Live Demo

A deterministic simulation environment for benchmarking autonomous email agents across classification, prioritization and full action execution, with bounded, numerically stable grading metrics. Four policy modes (heuristic, stress-test, LLM-driven, multi-agent hybrid), episode replay, approval workflows — and published benchmark results with honest findings.

Multi-Agent RAG FastAPI React SciPy PostgreSQL

🎵 music-recsys — production-scale recommender

Two-stage pipeline — two-tower embeddings → ANN retrieval → LightGBM ranker — with a full MLOps loop: event bus, feature updater, online store, model registry, retrain jobs. Interface-first design puts every dependency behind a Protocol, so it runs CPU-only and Windows-native with zero external services, then scales to Kafka/K8s by flipping one config value.

PyTorch LightGBM MLflow Kafka Redis Prometheus

20+ more — agentic platforms, India-market AI, Web3 and IoT — on my portfolio and repos.


💻 Tech Stack

Languages Python · TypeScript · C++ · SQL · Solidity
GenAI & Agents LangChain · LangGraph · MCP · OpenAI · Azure OpenAI · Gemini · Ollama
ML & Data PyTorch · scikit-learn · XGBoost · LightGBM · ONNX · MLflow · pandas
Stores PostgreSQL · Qdrant · Pinecone · Redis · Supabase · Neo4j
Backend & Web FastAPI · Node.js · Next.js · React · Tailwind
Infra AWS · Azure · Docker · Kubernetes · Kafka · Prometheus · GitHub Actions

Open to AI/ML engineering roles. Reach me at rogerdemello289@gmail.com

Pinned Loading

  1. autonomous-executive-email-copilot autonomous-executive-email-copilot Public

    Autonomous Executive Email Copilot is a deterministic executive inbox simulation and benchmarking platform for evaluating AI agents that classify, prioritize, reply to, escalate, and manage emails.

    Python

  2. AI-Workplace-Assistant AI-Workplace-Assistant Public

    AI-native HR platform: employee chat widget + HR analytics dashboard, with multi-agent sentiment analysis and RAG-grounded policy Q&A.

    Python

  3. DealSentry DealSentry Public

    AI-assisted proposal review system for compliance and deal risk management.

    TypeScript

  4. sentinel-ops sentinel-ops Public

    AI-powered incident prediction, root-cause analysis, and autonomous operations platform.

    Python

  5. shadow-gtm shadow-gtm Public

    AI-powered GTM intelligence platform that monitors live web signals, analyzes competitor changes, and generates ranked sales and marketing plays.

    TypeScript

  6. ml-guardian ml-guardian Public

    Metadata-driven ML risk sentinel built on DataHub — detects freshness/quality/schema-drift risks, writes incidents back to the graph, and generates remediation. DataHub Agent Hackathon.

    Python