Freelancer Oleksandr Yemelianov (PHP, databases & SQL) ≡ alex

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Oleksandr Yemelianov
Zaporizhzhia, Ukraine
0 0
Available for hire

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Rating 276

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PHP/MySQL developer with 17 years of commercial experience. I specialize in e-commerce backends.

What I do:

store business logic and custom development (Laravel, plus OpenCart and other PHP platforms);
integrations: marketplaces, ERP, delivery services, product feed export;
performance work: complex SQL, indexing, transactions, large-catalogue optimization;
search over large catalogues (ElasticSearch / Manticore).

Current stack: Laravel 11, Vue 3, MySQL, Docker.

How I work: I get into existing codebases quickly and take a task from start to a working, tested result. Responsive during work hours and reliable for long-term cooperation.

0 31

Memory Cards - web application for memorizing words

PHP

Own web application: flashcards for memorizing words with auto-translation and text-to-speech. A demo without registration is available on the website. View the code: https://github.com/OleksandrYemelianov/memory-cards Stack: Laravel 11, Vue 3, MySQL…

0 30

FeeCalcs — marketplace commission calculator

PHP

A personal web project, built from scratch completely: data design, backend, API, frontend, deployment, SEO. The tool calculates marketplace commissions for online sellers. Stack: Laravel 13, Tailwind, MySQL, Docker. #laravel #tailwindcss #MySQL #PHP…

0 0

Integration of the store with ERP (Oracle) and delivery services

Integration of the store with the client's ERP system (Oracle) via REST API: real-time synchronization of order statuses, accurate calculation of loyalty bonuses, tracking of execution stages for the customer. Additionally — integrations with…

Search in a large catalog: ElasticSearch → Manticore

0 0

Search in a large catalog: ElasticSearch → Manticore

For a retailer with a network of 100+ physical stores, I implemented faceted search across a large catalog on ElasticSearch, configured relevance and performance, and later migrated the search to Manticore. Backend refinement and optimization for…

Multicompartment orders: separation with separate delivery and reduction

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Multicompartment orders: separation with separate delivery and reduction

For a distributor with a catalog of 50,000+ SKUs, I implemented automatic order splitting into sub-orders by warehouses. Each sub-order has its own delivery; the discount is calculated on the entire cart and distributed among the sub-orders…

0 0

Integration of the store with marketplaces: feeds Rozetka, Prom, Allo

Generation of product feeds for Rozetka, Prom, and Allo: product attributes in HTML format within XML, splitting the feed into multiple files by ID ranges to bypass the marketplace size limit (180 MB). Importing orders, synchronizing statuses and…

Oleksandr Yemelianov
Zaporizhzhia, Ukraine
0 0
Available for hire

Projects -
Rating -
Rating 276

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Русский: Fluent
Українська: Advanced
English: Pre-Intermediate
Čeština: Pre-Intermediate

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PHP

Databases & SQL

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Programming

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