Darrell Mortalla

Machine Learning & AI Engineering Portfolio

End-to-end AI engineering work across multimodal assistants, RAG systems, deep learning, graph neural networks, forecasting, anomaly detection, and MLOps.

๐Ÿš€ Flagship AI Assistant

A highly capable multimodal assistant with retrieval, reasoning, workflow automation, and image understanding.

๐Ÿงฉ System Capabilities

A deeply integrated multimodal AI assistant designed for real-world use. It understands your documents, answers complex queries, analyzes images, and orchestrates multi-step workflows.

  • Context-aware reasoning & planning
  • Document retrieval + ingestion
  • Multimodal image understanding
  • Code generation & debugging
  • Long-context chat with memory
  • Tool-augmented workflows
๐Ÿš€ Launch Assistant

๐Ÿ›  Tech Stack

Powered by a modern AI engineering stack designed for speed, accuracy, extensibility, and developer ergonomics.

  • OpenAI GPT-5 / GPT-4o models
  • FAISS vector search
  • Embedding-based RAG
  • FastAPI microservices
  • Next.js streaming UI
  • Serverless / edge deployment
๐Ÿ’ป View Code

โšก Hero Apps

Seven interactive, production-style apps showcasing breadth in vision, retrieval, multimodal reasoning, forecasting, and anomaly detection.

๐Ÿง  RAG Document Advisor

Extract answers from docs using embeddings & TF-IDF.

๐Ÿ–ผ Multimodal RAG Assistant

Understands images + retrieves grounded knowledge.

๐Ÿ”Ž Semantic Search (FAISS)

Real-time vector search using embeddings.

๐ŸŽฌ ALS Recommender System

Matrix factorization recommender.

๐Ÿ“ˆ Time Series Forecaster

Interactive forecasting experience.

๐Ÿšฆ Traffic Sign Classifier

CNN trained on GTSRB.

โค๏ธ ECG Anomaly Detector

Detects waveform abnormalities.

๐Ÿงช ML/AI Engineering Projects

A curated collection of applied machine learning, deep learning, GNNs, forecasting, anomaly detection, MLOps, and more.

โš™๏ธ FastAPI Deployment

Containerized microservice with CI/CD.

๐Ÿ“Š MLflow Tracking

Experiment tracking & model registry.

๐Ÿ›ก Anomaly Ensemble

IsolationForest + LOF hybrid.

๐Ÿ“ก HAR LSTM

Wearable sequence modeling.

โณ Transformer Forecaster

Long-range multistep forecasting.

๐Ÿงฌ Graph Neural Network

GCN for node classification.

๐Ÿซ Pneumonia Detection

ResNet-18 fine-tuning.