Kostiantyn Lozhkin

Led backend migration initiatives from Magento 1 to Magento 2 across multiple country storefronts, establishing scalable server/cluster infrastructure for international market launches. Maintained and extended REST/GraphQL API integrations with enterprise third-party systems including Storyblok, Cliplister, and Crowdin.

Developed custom shipping time calculation module for Magento 2 platforms to provide precise delivery estimates and improve user trust at checkout.

Maintained and developed features for Magento 1.9.1 and 2.3 environments using Docker-based infrastructure. Built programmatic import/export data pipelines for automated synchronization with external ERP and CRM systems, and automated media asset delivery workflows with AWS S3.

Optimized PHP core code and implemented caching mechanisms to reduce page load times. Extended custom API endpoints and integrated complex order metadata to automate email templating, and upgraded Selenium automated testing suites.

Developed scalable CSV/XML feed architectures for product catalog data exchange with marketing partners. Integrated Google Maps API for address verification and connected custom e-commerce product types to external supplier APIs.

Built a multi-store order management system based on Zend Framework. Engineered a complex subscription billing flow with custom fraud-prevention logic including duplicate address detection.

Developed a custom educational online-testing platform. Administered a Windows Server cluster with Active Directory, managed 40+ Windows PCs, maintained the institute's WordPress website, and streamed online lessons using Adobe Connect.

Guided enterprise clients through complex domain setups, managing DNS delegation, CNAME, and MX record configurations.

Grade: Distinction

Earned both Master of Science and Bachelor of Science degrees in System Programming, graduating with distinction.