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Achievements

Achievement: YOLOAchievement: Pull Shark

Achievements

Achievement: YOLOAchievement: Pull Shark

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ume3445/README.md

Hi, I'm Umer, a CS and math student at DePauw University.

I like building systems where I can measure what happened: a concurrent cache with a benchmark harness, a retrieval pipeline with a 100-question eval, an open-source contribution to Open Policy Agent's Java SDK.

Things to look at first

  • shardcache: concurrent key-value cache server in C++20. Lock-striped LRU shards, 5.8x the throughput of a single global lock at 8 threads.
  • RetrieveAI: question answering over research papers with hybrid retrieval, cited answers, and a reproducible evaluation.
  • java-opa-sdk: contributions to the Open Policy Agent Java SDK.
  • MindFirst: a Chrome extension, website, and desktop app for using AI without losing the habit of thinking.

You can find more on my portfolio at umerhammad.com or on my LinkedIn.

I welcome any feedback or critique on my projects, profile, or website.

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  1. MindFirst MindFirst Public

    Tools for using AI without losing the ability to think.

    JavaScript

  2. Portfolio-Website Portfolio-Website Public

    CSS

  3. RetrieveAI RetrieveAI Public

    RAG pipeline with LangGraph, OpenAI embeddings, ChromaDB, and function calling — ingests PDFs and answers queries via a CLI.

    Python

  4. telecom-churn-prediction telecom-churn-prediction Public

    Churn prediction on the Telco dataset with SHAP explainability, survival analysis, and ROI simulation. Group project for CSC 398.

    Python

  5. open-source-contributions open-source-contributions Public

    My merged pull requests to the Open Policy Agent Java SDK, with a runnable demo

  6. shardcache shardcache Public

    Concurrent in-memory key-value cache in C++20: lock-striped LRU shards, TCP server, benchmarks

    C++