Skip to content
View MR73BIIO's full-sized avatar
🏠
Working from home
🏠
Working from home

Block or report MR73BIIO

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
MR73BIIO/README.md

Marcin Ruszczak · MR73BIIO

Data automation, ETL and GIS. I turn repetitive manual work into pipelines that run without anyone watching them.

Twenty-two years running operations before I started writing the code myself — which is mostly why I build for the person who has to use the output on Monday morning, not for the demo.

What I build
drone-tree-cadastre Drone imagery → GIS-ready tree inventory. 10k+ trees mapped from a single flight. Python · QGIS
market-data-etl Raw exchange feed → gap-free, validated time-series archive. 100% coverage, runs 24/7 on a VPS. Python · Pandas
strategy-validation Statistical validation framework. I ran it against my own trading strategy: 0 of 256 variants survived, none deployed. Python · SciPy

Stack

Python Pandas SciPy QGIS Linux VPS / systemd Git SQL

Harvard CS50P certificate (2026), currently working through CS50 Cybersecurity.

Languages

Polish (native) · German (fluent, from working in German-speaking Switzerland) · English · Russian

Working with me

I set up scaffolding, not dependency: you get the code, the access and the documentation, and I step off the structure. That is the whole offer.

mr73biio.github.io — services, pricing and case studies (PL / DE / EN) · Upwork · LinkedIn

Pulsus Cordis Tui — time is the only currency that does not come back.

Popular repositories Loading

  1. baza-drzew baza-drzew Public

    Tree Inventory and Arborist Verification Tool

    Python

  2. MR73BIIO.github.io MR73BIIO.github.io Public

    HTML

  3. german-invoice-extractor german-invoice-extractor Public

    Extract structured data from German invoice PDFs → validated CSV

    Python

  4. market-data-etl market-data-etl Public

    Raw exchange feed → gap-free, validated time-series archive

    Python

  5. drone-tree-cadastre drone-tree-cadastre Public

    Drone survey → GIS-ready tree cadastre (Python + QGIS)

    Python

  6. strategy-validation strategy-validation Public

    Self-audit of my own trading strategy: 256 parameter variants tested against an out-of-sample split, Bonferroni correction and a parameter-neighbourhood check. Zero survived. Zero deployed.