Mykolas Grinevičius
Python Engineer at 10 Speed
Vilnius, Vilnius County, Lithuania
Summary
👤
Senior🎓
Top SchoolMykolas Grinevičius is a seasoned Python and Ruby on Rails engineer with 11 years of experience delivering backend systems for e-commerce, retail workforce solutions, and high-traffic betting platforms. He combines a pragmatic engineering approach with a long-standing fascination for technology and art, which surfaces in thoughtful, well-tested code and attention to UX in APIs. At companies like GP Transco, SameSystem and TG LAB he owned RESTful APIs and complex backend services, and recently shifted focus to Python roles at Oxylabs and 10 Speed. A regular open-source contributor, he improved financial accuracy in the popular Spree eCommerce platform by fixing currency formatting and shipment pricing bugs. Colleagues know him for bridging product and engineering effectively—liaising with product owners and QA to ship dependable features. Based in Vilnius, he brings a mix of deep Ruby heritage and growing Python expertise, plus a knack for practical tooling born from freelance projects like scrapers and bespoke Spree integrations.
11 years of coding experience
9 years of employment as a software developer
BSc Transport Engineering, BSc Transport Engineering at VILNIUS TECH - Vilnius Gediminas Technical University
Lithuanian, English, German
Stackoverflow
31reputation
360reached
0answers
2questions
Github Skills (13)
spreed10
rails10
spree10
ruby-on-rails10
ecommerce10
ruby10
javascript9
frontend8
testing8
activemodelserializers6
sql-server6
polymorphism6
activemodel6
Programming languages (1)
Github contributions (5)
spree/spree
Aug 2017 - Jul 2019
An open source eCommerce platform giving you full control and customizability. Modular and API-first. Multi-vendor, multi-tenant, multi-store, multi-currency, multi-language. Built using Ruby on Rails. Developed by @vendo-dev
Role in this project:
Back-end Developer
Back-end DeveloperContributions:7 commits, 2 PRs, 8 comments in 1 year 11 months
Contributions summary:Mykolas primarily contributed to the Spree eCommerce platform, focusing on core backend logic. Their work involved modifying the `Spree::Money` class, ensuring correct currency formatting, and integrating the accounting.js library. The user also fixed a shipment price calculation bug and refactored country tests. These changes demonstrate a focus on improving the functionality and accuracy of the platform's financial calculations and data integrity.
multi-sourceecommercemulti-languagespreecommerceshopware
maikis/spree
Aug 2017 - Jul 2019
Spree is a complete open source ecommerce solution for Ruby on Rails
Contributions:7 pushes, 2 branches in 1 year 11 months
ruby-on-railsrubyonrailsecommercerailshotel-booking
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