Oleksandr

Trubaiev Oleksandr
Backend Developer
Personal information:
E-mail: [open contact info](look above in the "contact info" section)
Mobile[open contact info](look above in the "contact info" section)
Discord - xcrits
Education:
Kherson School № 52 (2010 – 2017)
Kherson Physical‑Technical Lyceum (2017 – 2021)
Technical University of Košice (2021 – 2025)
Faculty of Electrical Engineering and Informatics / Business Informatics,
Bachelor's Degree
Languages:
Native: Ukrainian, Russian English(B2) Slovak(B1).
Skills:
Programming Languages: C++, C, Java, Python, PHP
Backend: PHP, OOP, MVC, Symfony, Laravel, Doctrine ORM, PostgreSQL, MySQL
Frontend: HTML, CSS, JavaScript
Version Control: Git (GitLab, git‑flow, GitHub)
CI & Tests: Composer, PHPUnit
Bachelor Thesis
Web Application for Interactive Augmentation of Medical Images (Git)
I designed and implemented a web application that streamlines dataset preparation for deep neural networks in medicine. The tool lets users upload ultrasound, MRI, or X‑ray images, build augmentation pipelines (rotation, contrast adjustment, zoom, noise, elastic deformation, etc.), set parameter ranges, preview results in real time via WebSockets (Pusher), and regenerate expanded training data in PNG and PyTorch tensor (.pt) formats. All transformation histories are stored in a database, can be reused, and results can be downloaded individually or in bulk as ZIP archives.
Technologies Used: Laravel 11 (PHP 8.2), Artisan Jobs, REST API • Python 3.10, MONAI 1.x, PyTorch • Pusher Channels, Laravel Echo • Blade, Bootstrap 5, JavaScript • MySQL 8, Eloquent ORM • Composer, Nginx, Crontab, GitHub

Work experience:

PHP School Andrii Bolonin /Backoffice
PHP Developer
August 2020 - February 2021
Backoffice is a system that allows you to maintain information about clients and deals with them, to carry out settlements on these deals, for clients information on statistics and payments. This was part of my job, I customised page accesses, added forms to create records linked many to many, fixed bugs in tables and added filters, fixed/added sorting in table, fixed generating of excel with db tables.
Technology: PHP + Symfony + Doctrine ORM (PostgreSQL) + Git + Git-flow + phpunit + Composer
Projects:
GitHub/GitLab
Eshop - my own project
git
My project is a web application that implements: data structuring with using database, full authorisation, adding products to the cart, display the cart on all pages with detailed information about the products, full ability to add discounts (on the product, on certain categories, and total discount), viewing the payment made by the user for a certain period. (breeze, gloudemans/shoppingcart)
Technology: PHP + Laravel + Database (MySQL) + Git + Composer + Bootstrap/TailwindCSS + Node.js + Vue.js
Test project - mt project realised as a test task. git
Test project is a web application that implements: data structuring with using database(sort/pagination), full authorisation,full CRUD with Events and Venues tables. Usertype(admin can create, delete, update events/venues, user can only read) , display the weather in your region based on your ip, saving weather data in a cache using Redis. phpunit tests and Github action on CRUD and breeze authorisation.
Technology: PHP + Laravel + Database (MySQL) + Git +Git Actions + phpunit + Redis + Composer + Node.js + Vite + Intervention Image + Bootstrap/TailwindCSS + RESTful api
CRUD symfony - my own project
git
This is my project, written in symfony, I implemented fully CRUD(Create, Read, Update, Delete/
PostgreSQL), also added pdf, excel and qrcode generation. Created sending emails and authorisation
Technology: PHP + Symfony + Doctrine ORM (PostgreSQL) + Git + Git-flow + phpunit + Composer

Test project - my own project
git
This is my project, written in symfony, written as a test project. I implemented CRUD/postgreSQL with the ability to add a picture. Pagination/sort added
Technology: PHP + Symfony + Doctrine ORM (PostgreSQL) +
Git + Git-flow + phpunit + KnpPaginatorBundle + Composer
CRUD php - my own project
git
this is my project, CRUD is written in pure php + tests
Technology: PHP + Symfony + Doctrine ORM (PostgreSQL) + Git + Git-flow + phpunit + Compose