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AlexHarnett1/README.md

👋 Hi, I'm Alex Harnett

I'm a software engineer based in San Francisco, CA, passionate about solving complex problems, mastering new frameworks and architectures, and contributing to projects that drive meaningful change.

When I'm not at my computer, I love getting outside to go for a run, a bike ride, or a round of golf! I also really enjoy traveling around the world to see new places and experience unique cultures. 🌏

LLMonade 🍋

Most recently I developed LLMonade, an open-source AI evaluation tool that helps development teams systematically improve LLM applications through guided manual error analysis. It streamlines trace ingestion, annotation, and failure categorization to highlight the highest ROI fixes, following industry best practices.

Technologies Used - Typescript, Express, React, OpenAI and AWS (Lambda, API Gateway, RDS, S3, Cloudfront, Cognito, Eventbridge, CDK)

📖Read the LLMonade Case Study

Programming Stack

Category Technologies
Programming Languages Javascript, Typescript, Python, Ruby, SQL
Web Development Express, React, Node.js, Sinatra, HTML5, CSS
Databases PostgreSQL, MongoDB
Cloud Services AWS (CDK, EC2, Lambda, API Gateway, RDS, S3, Cloudfront, Cognito, Eventbridge)
Containerization Docker
APIs and Testing RESTful and GraphQL APIs, Jest, react-dom, Minitest
Other OpenAI, Anthropic, Langchain, Arize Phoenix, Pgvector, RAG, Git/Github, UE4

📫 How to reach me

LinkedIn or email: harnettalex@gmail.com

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  1. llmonade/llmonade.github.io llmonade/llmonade.github.io Public

    In-depth case study for LLMonade, an open source evaluation tool for LLM applications.

    Astro

  2. llmonade/CLI llmonade/CLI Public

    CLI tool that uses AWS CDK-based deployment framework to provision and configure serverless infrastructure to self host LLMonade

    JavaScript

  3. spotify-rag spotify-rag Public

    Retreival-augmented generation (RAG) chatbot for querying Spotify listening history data for information or recommendations using the OpenAI API

    Python

  4. request-tub request-tub Public

    Capstone group project on creating a RequestBin to receive requests from github webhooks.

    TypeScript 2