Personal information hidden

Vitalij Supronuk
Backend / Full-Stack Engineer — PHP, Laravel, APIs, SQL

[open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section) | Telegram: @vitalijSup | Ukraine | Remote

PROFILE
Backend / Full-Stack Engineer with 15+ years of experience building and maintaining production web applications, APIs and
distributed systems.

Strong background in PHP development, Laravel and custom/legacy PHP systems, with extensive experience in relational
databases, API integrations, caching, performance optimization and modernization of existing applications.
Experienced in working with established production codebases where reliability, maintainability and practical business requirements
are more important than introducing technology for its own sake.
Recent work includes Laravel-based applications, Vue/Nuxt frontends, REST APIs, WebSockets and AI-related functionality.
Comfortable working across backend and frontend when required, while keeping backend engineering as the primary focus.

SKILLS
Backend: PHP, Laravel, Zend Framework, Kohana, Yii, custom/legacy PHP
Frontend: Vue 3, Nuxt, JavaScript, React (basic), jQuery, HTML/CSS, SCSS
Databases & performance: MySQL, PostgreSQL, NoSQL, database transactions, replication, indexing, query optimization, Redis,
Memcached
Infrastructure: Linux, Nginx, Apache, AWS, Docker, Perlbal, MogileFS
Engineering: Legacy modernization, performance optimization, distributed systems, production debugging, code review, testing,
scalable application design

EXPERIENCE
Convencium
Backend / Full-Stack Engineer
Development of web applications using Laravel and Vue 3.
REST API development and integration.
Frontend development with Vue 3 and SCSS.
Work with AI-related functionality.
Development and maintenance of application features across backend and frontend.

Guide to Iceland (https://guidetoiceland.is)
Backend Engineer
Backend development and maintenance of a large production travel platform.
Development with Laravel, Kohana, React (partial) and jQuery.
REST APIs, GraphQL and custom APIs.
Integration with external services and payment providers.
Performance optimization and work with existing legacy code.
AWS-related infrastructure and application support.
Investigation and resolution of production issues.

Rakuten Photo Studio (https://shashinkan.rakuten.co.jp)
Backend Engineer / Project Architect
Development and architectural design of a large-scale photo storage and printing platform.
Zend Framework and Perlbal.
MySQL transactions and database replication.
MogileFS-based distributed photo storage.
Integration with external printing services, including Fuji and Kodak.
Development of backend components supporting photo uploads, albums and photo products.
Focus on reliability, performance and separation of storage, application and processing workloads.

Huffington Post (https://www.huffpost.com)
Backend Engineer
Backend development for the advertising department of a large US media platform.
Development and maintenance of a custom PHP framework used for advertising delivery.
Work with high-traffic production infrastructure and performance-sensitive backend functionality.

Keller Sports (https://keller-sports.de/)
Backend Engineer
Backend development for a German sports and lifestyle e-commerce platform.
Migration from OXID to Laravel.
Development and maintenance of backend functionality and integrations.
Work with existing production code and gradual modernization.

Itao
Backend Engineer
Backend development for an educational platform.
Laravel and PostgreSQL.
Database architecture and backend application development.
jQuery, HTML and CSS integration.

SELECTED PROJECTS

Educational Messenger / Programming Learning Platform
Laravel · Nuxt · WebSockets
Private project involving an interactive messenger used as part of a programming education platform for children.
Laravel backend.
Nuxt frontend.
Real-time communication using WebSockets.
Interactive learning functionality.

Used-Car Purchase Application
PHP / Web Application
Private project for the US market focused on collecting and processing requests from people selling used cars.

ERP for Small and Medium Businesses
Private project covering:
inventory management;
stock movements;
financial operations;
mobile cash register functionality.
The project remained in development and was not launched in production.

EDUCATION
Master Degree in Applied Mathematics — Kharkov National University, 1998

LANGUAGES
English — B1
Ukrainian — Native