Jakub Polak

Software Engineer specializing in Ruby, Elixir, Python, Kotlin, and TypeScript. Experienced in building internal libraries, developer tools, and backend systems (Rails, Phoenix, Spring). Passionate open source contributor with libraries downloaded 100k+ times.

💡 Open to collaboration and interesting projects – reach out at jakub.polak.vz@gmail.com

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📫 Connect

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🧩 Open Source Projects

Python

• nukat
  Python client for searching the NUKAT academic library catalog using web scraping.

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Ruby

• textstat
  Ruby gem for calculating text readability and complexity statistics (Flesch, SMOG, etc.).

• flight_radar
  Ruby gem providing access to FlightRadar24 data.

• strateg
  API client for the STRATEG system, providing access to EU open data in JSON format.

• vocabulary_to_csv
  Tool for extracting vocabulary lists from Vocabulary.com and exporting them to CSV.

• simpler_lexer
  Educational lexer written in Ruby.

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Elixir

• afinn
  Sentiment analysis library based on the AFINN word list.

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Kotlin

• verbs
  Kotlin project focused on verb-related language processing.

• gutendex
  Kotlin client for the Project Gutenberg (Gutendex) API.

• afinn
  Sentiment analysis implementation in Kotlin based on the AFINN lexicon.

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OCaml

• stdnum
  Library for parsing and validating standard numbers (ISBN, VAT, etc.).

• ferdek
  Humorous esoteric programming language inspired by a Polish sitcom.

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TypeScript

• ferdek-vscode
  Visual Studio Code extension for the Ferdek programming language.