Evgeny
KorovinMikhailovich

Lead Backend Developer

Developing a medical services marketplace with PHP, Laravel and PostgreSQL, with a Laravel Nova admin panel.

• Built a corporate service for booking employee medical examinations across Russia, including a self-service portal, letters of guarantee and document generation. Implemented background task processing with Laravel Jobs queues.
• Developing and optimizing Elasticsearch search for services, doctors, specialties and clinic networks, including autocomplete, suggestion ranking and city-specific results.
• Developing Elasticsearch indexing: full rebuilds and selective updates by document type, index and alias management.
• Developing APIs for the doctor directory and profiles: specialties, services, filters, clinics on a map and support for doctors without available appointment slots.
• Improving online appointment booking: availability calendars and doctor slot lists by clinic, specialty and appointment type; resolving inconsistencies in appointment availability.
• Integrations with healthcare providers and laboratories.
• SEO improvements: readable URLs, breadcrumbs, duplicate URL fixes and sitemap generation with S3 storage.

Lead PHP Developer

A cost estimation system for a major energy company under NDA. Two microservices built with a custom PHP framework and Laravel 9, with a React + Redux frontend.

• Parsing, generating and merging Excel files with 10,000+ rows. Made exports 13 times faster.
• Exporting files totaling 40 GB to a network drive.
• SAP integration via SOAP.
• Ubuntu Server administration, Nginx configuration and network storage setup.
• PHPStan, PHPUnit and GitLab CI/CD in the development workflow.

Lead PHP Developer

A high-traffic online store with a microservices architecture. Migrating functionality from Bitrix to Symfony.

• Cart promo codes and discount integrations with external services, including RetailCRM.
• A genetic algorithm for allocating discount points across products, based on the knapsack problem.
• A Vue.js gift certificate interface based on Figma designs, integrated with the backend.

PHP Developer / Team Lead

Developing and maintaining a Laravel CRM/ERP system to automate a large manufacturing business.

• Data exchange with 1C every 15 seconds; managing customers, sales, projects, orders and working hours.
• Tasks and internal notifications mirrored to Telegram, with a custom queue implementation.
• A Telegram bot for reminders and tasks, built with Laravel and MySQL with a Laravel BackPack admin panel.

Entrepreneur / Digital Marketer

Led a team building websites, from landing pages to online stores. Client negotiations, requirements gathering, technical specifications and prototypes, technology selection and delivery oversight. Integrations with amoCRM.