Mateusz Dominiak

Mateusz Dominiak

Senior Ruby on Rails Developer

Warsaw, Poland



What's the difference

Over the last 6+ years, I have developed a wide range of quality SaaS products using Ruby on Rails for start-ups and small businesses. As experienced full stack web application developer my core competency lies in complete end to end architecting, development and management of new web application from the ground up for you or your business. Got the interesting idea? I have got all the technical skills it takes to make it real.

Rails 3/4, web applications architecture, TDD/RSpec/Capybara, HTML5/…


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Work History & Feedback

Senior Javascript Developer

17 hrs @ $35.00/hr
Earned $583
“Very intelligent and easy to work with. Almost always very easy to get in touch with. Had one issue where he didn't reply for a week due to holiday and busy with other project. Once the communication issue was resolved things were great.He was very up front about being busy with another project which is rare for a contractor to be so honest. Two thumbs up!”


Full time Senior Ruby on Rails developer

306 hrs @ $22.22/hr
Earned $6,803
“Mateusz was a valuable member of our team and we would rehire him again.”


Data Conversion Utility Development in Ruby

33 hrs @ $19.00/hr
Earned $704
“The project was inherently iterative, and Mateusz did a great job of handling the changes. He consistently updated the tests and then did the necessary work to deliver the functionality.”


Screen Scraper for Job Listings at

74 hrs @ $25.00/hr
Earned $1,838
No feedback given


Ruby developer for small job (wrapper class for API)

35 hrs @ $22.22/hr
Earned $770
No feedback given

Tests Taken
Name Percentile Score

CSS 2.0 Test


English Vocabulary Test (U.S. Version)


HTML 4.01 Test


Java Test


JavaScript 1.3 Test


MySQL 5.0 Test


Ruby on Rails 2.3 Test


Ruby on Rails Test


Ruby on Rails Test v1 (Old)