Jack
Stoltz

A from-scratch scheduler in C coordinating up to 16 concurrent CPU threads through a shared ready queue. Built a thread-safe queue with pthread mutexes and condition variables that blocks idle threads to eliminate busy-waiting, and implemented FIFO and Round-Robin policies with fine-grained locking to prevent deadlock and cut contention.

Secure offline RAG system letting DoD-restricted industries query private data locally via LLaMA-3. Generates embeddings with Hugging Face + LlamaIndex into a local vector database for contextual retrieval, fronted by a React + Flask UI built for non-technical users.

Real-time, gesture-driven control system. MediaPipe + OpenCV recognize finger gestures from a webcam to drive the arm's axes, with the Python vision pipeline interfaced to Arduino C++ firmware for seamless servo actuation over serial.

Web app that analyzes the sentiment of user-inputted text with a trained ML model, then renders the tone in real time as a live graph using Pandas and Plotly.

Recommendation app that generates book suggestions from the titles, authors, and genres a user has previously enjoyed and added to their library.