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denjcodes/README.md

Dennis Johnson

Forward Deployed Engineer at Cohere, shipping LLMs in production for enterprise customers. Interested in research at the intersection of agentic system design, LLM evaluation, and ML systems reliability.

M.S. Applied AI — University of San Diego (exp. Jan 2027) · B.Sc. CS, York University · Toronto, ON


Current focus

  • Multi-agent system design — coordination, tool use, evaluator-optimizer loops
  • LLM evaluation and behavioral analysis
  • ML inference and production systems
  • Agentic architectures — planning, self-correction, memory

Featured Work

Project Description
Equity Research Agent Hand-rolled multi-agent system for equity research. Evaluator-optimizer loop, self-reflection, live data from Yahoo Finance, News API, and SEC filings.
Smart Meter Forecaster CNN+LSTM+Attention for IoT load forecasting and spike detection. R²=0.966 (10-min horizon), PR-AUC=0.908 on Moroccan grid data.
ASL Sign Detector Rule-based and EfficientNet-based ASL gesture recognition across 29 classes. Deployed on Hugging Face Spaces.
LLM Contract Analyzer Semantic contract comparison using BERT embeddings and a local LLM. Surfaces material differences across document versions.

Stack

Python PyTorch LangGraph HuggingFace scikit-learn FastAPI Docker


LinkedIn · Toronto, ON

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  1. equity-research-agent equity-research-agent Public

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  2. asl-sign-detector asl-sign-detector Public

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