Yurii Kushnir is a Full Stack Developer with 11 years of experience building web applications and backend systems, currently freelancing from Ukraine. He has a strong Ruby/Rails background from roles at Spark Solutions, Leobit, and Teamvoy and has progressed into full-stack responsibilities at Shaparency and as an independent contractor. Yurii contributes to notable open-source projects like the Spree eCommerce platform, where he improved monetary calculations and currency handling for non-fractional currencies—demonstrating attention to financial correctness in complex domains. With a foundation in applied mathematics from Ivan Franko National University, he combines analytical rigor with practical engineering to refactor legacy code and remove deprecations. Colleagues see him as a dependable problem-solver who bridges core backend concerns with front-end delivery.
11 years of coding experience
7 years of employment as a software developer
High School, A, High School, A at Zolochiv Economic Liceum
Bachelor’s Degree, Applied Mathematics, Bachelor’s Degree, Applied Mathematics at National University 'Ivan Franko' , Lviv
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
Contributions:39 commits, 34 PRs, 10 pushes in 8 months
Contributions summary:Yurii contributed to the Spree eCommerce platform by fixing bugs, improving code, and adding features related to monetary calculations and store credit. They modified core models, including `Spree::Money`, `Spree::Payment`, and `Spree::Refund`, to ensure correct handling of currency and amounts, especially for non-fractional currencies. The user also improved the `Spree::ShippingRate` code, demonstrating an understanding of the platform's internal workings. Furthermore, they addressed deprecation warnings and refactored existing methods.
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