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Endropr/README.md

Alexander Busygin | Full-Stack Developer

CV Telegram LinkedIn Gmail

Full-stack developer based in Batumi.
I build and ship products end-to-end: high-load backends, robust architectures, modern interfaces, and cloud infrastructure.

Main stack: Go · React · TypeScript · PHP · PostgreSQL · Redis · Kafka · Docker · Cloudflare

🛠 Technical Stack

Category Tools & Technologies
Backend & Architecture Go PHP PostgreSQL GORM Redis Kafka
Frontend TypeScript React JavaScript Vite Tailwind
Tools & Infra Git Docker Linux Nginx Cloudflare

🚀 Featured Projects

Corvin VPN
Production client system for a commercial VPN: landing, tariff management, payment gateway integration, and automated key delivery.
PHP · JavaScript · Nginx · DigitalOcean

AI Mentor Bot
Telegram bot for programming mentorship. OpenAI integration, clean service structure, asynchronous job processing.
Go · PostgreSQL · Redis · OpenAI

Captcha Microservice
Standalone CAPTCHA service featuring custom image distortion, strict rate-limiting, and Redis session management.
Go · Redis · Docker

Rent-car API
Car rental REST API built with strict layered architecture (models, storage, business logic) and optimized SQL queries.
Go · PostgreSQL · REST


📚 Current Focus & Growth

  • Building a SaaS Product: Currently designing and developing a full-stack SaaS platform (Go backend, React frontend, PostgreSQL, Docker) with planned cloud deployment, billing integration, and edge-security setup.
  • High-Load & System Architecture: Deepening expertise in Go concurrency patterns, microservice architecture, and gRPC communication.
  • Database Optimization: Fine-tuning PostgreSQL query execution plans, indexing strategies, and high-frequency caching mechanisms with Redis.
  • Cloud Infrastructure & Security: Advanced Cloudflare Edge computing (Workers, WAF rules), automated CI/CD pipelines, and zero-downtime deployment workflows.

📫 Contact: Telegram · Email

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  1. CV CV Public

    Fullstack Developer (Go / React / PHP). CV & Resume (EN/RU).

    2

  2. Corvin-VPN Corvin-VPN Public

    Full client-side system for Corvin VPN: responsive landing, payment integration & automatic key delivery.

    HTML 2

  3. Coding-school-management-system Coding-school-management-system Public

    Enterprise Resource Planning (ERP) system for technical education centers. Features automated enrollment, inventory tracking, and role-based access control (RBAC).

    PHP 1

  4. LempiRajala/PixelDays LempiRajala/PixelDays Public

    PixelDays — An interactive open-source platform for massive real-time collaboration. Thousands of users can simultaneously draw and create art on a shared global canvas with instant synchronization.

    JavaScript 4