Jakub Dajczak

Hello!

I'm Jakub, a software developer from Gdańsk, Poland. I hold a Bachelor's degree in Computer Science from Gdańsk University of Technology.

Currently, I'm working as a Fullstack Developer at Lipscore, where I work with Ruby on Rails, JavaScript, REST, OpenAPI, and Sidekiq.

Over my few years as a developer, I've worked with several programming languages, but I feel most comfortable with Ruby (which I work with daily) and Python (which I use for private projects). I've also worked on a few C# projects and dabbled in Java, JavaScript, Vue, and Docker. These days, I use Mac and Linux for my development work.

I decided to build this website not out of necessity, but because I wanted to better organize my thoughts and projects (which I’ve created and abandoned more times than I can count) and maybe share them with others.

In my free time, I’m traveling the world, tinkering with small projects, learning new random things, building and setting up servers for my friends, playing video games and watching movies.

Work Experience

Fullstack Developer

2025 - Present

Lipscore

Ruby on RailsJavaScriptRESTOpenAPISidekiq

Fullstack Developer

2022 - 2025

Qtravel.ai

  • Lead developer of GraphQL API based on Ruby on Rails
  • Building and optimization of complex Solr queries
  • Research and integration of NLP tools for query analysis
  • Development of comprehensive unit and end-to-end tests
  • Creation and maintenance of technical documentation
Ruby on RailsGraphQLApache SolrNLPPythonDocker