Yan Bahrou

# about me

Last-year CS student in Trójmiasto. I like building things. Mostly backend systems and data pipelines, but not afraid of doing full-stack. I self-host most of my applications/projects, and rely on Cloudflare for frontends

# projects

• Vehicle cost calculator,a page for displaying vehicle depreciation curves and seasonality in the futurePython, SQLite, isotonic regression, Cloudflare Workers
  livegithub
• Marketplace-style platform tracker,a backend for the upper project and a tool allowing for much better experience with the used marketPython, asyncio, SQLite, Docker, multi-provider LLM pool, systemd
  private
• betterdojade,a public transit routing page that solves docking type bike share's "last mile problem" and predicts delays using an ML model trained on over 30gbs of delay dataJavaScript, Leaflet, GraphHopper, Cloudflare Pages
  github
• Air quality monitor,an air quality reporter that sends weekly emails with AI summaries, analysis and recommendationsPython, MCP server, SQLite, Matplotlib, OpenRouter
  private

# stack

languages

Python, SQL, JavaScript, Bash

infra

Linux, Docker, systemd, nftables, HAProxy, Cloudflare Workers

data

Pandas, MariaDB, SQLite, GTFS, Matplotlib

ai

multi-provider LLM APIs, MCP servers, prompt engineering