Jan Jędrychowski
Co-founder at Wallnament
Warsaw, Masovian Voivodeship, Poland
Summary
🤩
Rockstar🎓
Top SchoolJan Jędrychowski is a seasoned software engineer and co-founder with 14 years of experience building web applications and startups from Warsaw. He progressed from QA and internal-framework development at IBM to Ruby on Rails and JavaScript-focused roles across several companies before co-founding Wallnament in 2021. Jan brings hands-on full-stack expertise—particularly in Rails and front-end JS—and a practical understanding of QA-driven development practices. His background spans product-driven teams at Global App Testing and Format Inc., giving him a strong mix of delivery discipline and user-focused engineering. Colleagues would note his steady progression from tester to technical leader and founder, reflecting both curiosity and an ability to turn operational knowledge into product outcomes. He holds a BS in Applied Computer Science from AGH University of Science and Technology in Cracow.
14 years of coding experience
8 years of employment as a software developer
Bachelor of Science (BS), Applied Computer Science, Bachelor of Science (BS), Applied Computer Science at AGH University of Science and Technology in Cracow
English, Polish
Stackoverflow
91reputation
4kreached
2answers
0questions
Github Skills (72)
coverage10
chrome-extension10
code-review9
mutation-testing9
rspec9
mutant9
ruby-on-rails9
dry-rb9
minitest9
get-request9
rails9
apollo-link9
static-analysis8
parser8
ruby8
Programming languages (7)
Github contributions (5)
gogiel/entity_mapper
Jul 2019 - Dec 2023
Map persisted data to and from POROs (Plain Old Ruby Objects)
Contributions:10 PRs, 61 pushes, 16 branches in 4 years 6 months
porosdata-persistedrubymapplain
4ormat/acts-as-taggable-on
May 2015 - Jul 2018
A tagging plugin for Rails applications that allows for custom tagging along dynamic contexts.
Contributions:2 PRs, 6 pushes, 1 branch in 3 years 2 months
ruby-on-railsrails-applicationsrailsrubytagging
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