Contact information

You can get this candidate's contact information from https://www.work.ua/resumes/19994515/

Work experience

PHP developer

from 11.2022 to now (3 years 11 months)
Гровекс, ТОВ, Дистанційно (Оптова торгівля, дистрибуція, імпорт, експорт)

Agro Digital Product Holding building e-commerce ecosystems and SaaS solutions.
- Core Backend & Microservices: Architected and implemented high-throughput PHP 8+ microservices
for core e-commerce and SaaS modules, applying SOLID principles and DDD patterns to support system scalability.
- Fiscal & Financial Architecture: Engineered resilient Checkbox API integration for real-time invoice fiscalization; built robust retry/failover queue mechanisms handling thousands of daily transactions with zero data loss.
- Async Queues & Integrations: Developed high-load background message processors using RabbitMQ and Redis for banking APIs (PrivatBank, Monobank, LiqPay), Salesdrive CRM, and ERP syncs.
- Database Performance Tuning: Profiled heavy PostgreSQL/MySQL queries and Doctrine/Eloquent ORM calls, optimizing indexes and execution plans to reduce API latency by 35–40% and eliminate memory leaks.
- Quality Assurance & CI/CD: Increased test coverage to 90%+ by writing PHPUnit unit/integration tests for critical checkout and payment workflows; configured automated static analysis (PHPStan) in GitLab CI pipelines.
- DevOps & Infrastructure: Containerized microservices using Docker, configured Nginx web servers, and managed deployment pipelines on Linux servers to maintain high system availability.

PHP BACKEND DEVELOPER

from 01.2019 to now (7 years 9 months)
ENTREPRENEUR, Дистанційно (IT)

- Designed custom PHP backend logic and relational database schemas (PostgreSQL/MySQL) for scalable e-commerce products (booratino.com.ua, blanka.com.ua, adleragrovision.com.ua).
- Implemented asynchronous log processing, rate limiting with Redis, and server-side tracking via Conversion APIs.
- Integrated external logistics APIs (Nova Poshta, Ukrposhta) ensuring request idempotency and fallback mechanisms

JUNIOR DEVELOPER

from 06.2018 to 02.2019 (9 months)
INSAT, Дистанційно (IT)

- Developed backend integration logic and captive portal services for
PacketFence network access control systems.

Education

National University Zaporizhzhia Polytechnic

Faculty of Computer Sciences and Technologies, Запоріжжя
Higher, from 2019 to 2023 (4 years)

Knowledge and skills

• PHP
• Laravel
• Symfony
• Yii
• Python
• Django
• Flask
• Node.js
• REST API
• Microservices
• Vue.js
• React
• TypeScript
• JavaScript
• Tailwind CSS
• HTML
• CSS
• Bootstrap
• JQuery
• Docker
• Kubernetes
• GitHub
• GitLab
• PHPUnit
• CI/CD
• MySQL
• PostgreSQL
• SQLite
• MongoDB
• Redis
• Memcached
• Адміністрування Apache
• Nginx
• WordPress
• OpenCart
• Joomla!
• C/C++
• Windows API
• Java
• C#
• Socket
• Користувач ОС Linux
• Debian
• Користувач Ubuntu
• FreeBSD
• TCP/IP
• HTTP
• WebSocket
• Налаштування DNS
• SQL

Language proficiencies

• English — average
• Ukrainian — fluent

Additional information

PROFESSIONAL SUMMARY
PHP Backend Developer with 8+ years of commercial experience architecting, scaling, and optimizing highload production systems. Strong expertise in PHP 8+, Laravel, Symfony, Yii2, OOP, SOLID, and designing
robust REST APIs. Deep hands-on experience with PostgreSQL/MySQL query optimization, asynchronous
processing (RabbitMQ, Redis), and integrations (Payment gateways, Banking APIs, CRM/ERP). Track
record of refactoring legacy codebases, boosting system performance, and maintaining 90%+ test coverage
with PHPUnit and static analysis tools (PHPStan). Proficient in Docker, Linux, Nginx, and CI/CD pipelines.

CORE COMPETENCIES & ACHIEVEMENTS

- High-Load Backend Engineering: Designed resilient microservices and REST/RPC API endpoints
handling high concurrent traffic and asynchronous data processing workflows.
- Database Tuning & Optimization: Deep experience profiling slow queries, analyzing execution plans,
building optimal indexes, and managing schema migrations on multi-million row databases.
- Integrations & Fiscalization: Engineered idempotent integrations with payment gateways, banking APIs
(PrivatBank, Monobank, LiqPay), and Checkbox fiscalization services.
- Legacy Refactoring & Quality Assurance: Successfully refactored monolithic legacy codebases,
introduced automated PHPUnit test coverage, and established CI pipelines to eliminate regressions