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Backend developer
- City of residence:
- Irshava
- Ready to work:
- Remote
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Mykhailo Roman
[open contact info ](look above in the "contact info" section) ⎪ [open contact info ](look above in the "contact info" section) ⎪ Telegram: @roman_m221
Ukraine, Zakarpattia
Professional summary
Backend developer with 3+ years of commercial experience in product-based e-commerce
companies building API integrations, event-driven sync, and high-volume data processing.
Work history
PHP Developer, Salestio January 2024 – June 2026
● Built and maintained backend integrations with e-commerce store platforms (Shopify,
BigCommerce) and marketplaces (Amazon, eBay, Etsy, Walmart) via REST/GraphQL APIs.
● Designed real-time sync (webhooks + cron jobs) across 10 sales channels, keeping
inventory, orders, and fulfillment data consistent for sellers ranging from small catalogs to
high-volume stores.
● Diagnosed and resolved sync-related production issues in collaboration with the customer
support team, investigating edge cases across marketplace APIs and acting as the technical
point of contact for integration and data sync incidents.
Fullstack Developer, SellerToolset February 2023 – December 2023
● Developed backend (Laravel, MySQL) and frontend (Vue.js) for an Amazon-focused
inventory and order management platform, including order tracking, feedback monitoring,
and inventory sync. Built a Chrome extension for Amazon/Walmart product margin and
return-on-investment calculation.
Skills
● PHP 7/8, Symfony, Laravel, PHPUnit
● PostgreSQL, MySQL
● RabbitMQ, Docker, Git
Languages
● Ukrainian - Native
● English - B2
Education
● Mukachevo State University. Bachelor's Degree in Marketing
[
Ukraine, Zakarpattia
Professional summary
Backend developer with 3+ years of commercial experience in product-based e-commerce
companies building API integrations, event-driven sync, and high-volume data processing.
Work history
PHP Developer, Salestio January 2024 – June 2026
● Built and maintained backend integrations with e-commerce store platforms (Shopify,
BigCommerce) and marketplaces (Amazon, eBay, Etsy, Walmart) via REST/GraphQL APIs.
● Designed real-time sync (webhooks + cron jobs) across 10 sales channels, keeping
inventory, orders, and fulfillment data consistent for sellers ranging from small catalogs to
high-volume stores.
● Diagnosed and resolved sync-related production issues in collaboration with the customer
support team, investigating edge cases across marketplace APIs and acting as the technical
point of contact for integration and data sync incidents.
Fullstack Developer, SellerToolset February 2023 – December 2023
● Developed backend (Laravel, MySQL) and frontend (Vue.js) for an Amazon-focused
inventory and order management platform, including order tracking, feedback monitoring,
and inventory sync. Built a Chrome extension for Amazon/Walmart product margin and
return-on-investment calculation.
Skills
● PHP 7/8, Symfony, Laravel, PHPUnit
● PostgreSQL, MySQL
● RabbitMQ, Docker, Git
Languages
● Ukrainian - Native
● English - B2
Education
● Mukachevo State University. Bachelor's Degree in Marketing
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The candidate's resume is posted at https://www.work.ua/resumes/19697857/