Reza Kharazminia

Founded and independently built subkhoone.com, an e-commerce platform for digital subscriptions (Spotify, Apple Music, ChatGPT and more) and gift cards (Steam, PlayStation and more).

• Full-stack architecture with Next.js and TypeScript
• PostgreSQL with Prisma ORM
• NextAuth authentication, 2FA via SMS APIs, and role-based access control (RBAC) for admins and users
• Redis caching for high-frequency operations
• Responsive UI with Tailwind CSS, Headless UI and Framer Motion
• i18n with next-intl (Farsi and English), built so new languages are easy to add
• MDX blog with Next MDX Remote, with React components inside articles
• Admin panel for users, support tickets, orders and monitoring
• Ticketing with real-time notifications via SMS and a custom Telegram bot
• Zarinpal payment integration with anti-race-condition mechanisms and transactional integrity
• Rate limiting against abuse and brute-force attacks
• One-click maintenance mode without redeploying; Vercel CI/CD, analytics and monitoring
• SEO: structured metadata, sitemaps and canonical tags
• Cron jobs that auto-cancel long-pending orders and keep the database clean
• Real-time dynamic pricing engine
• Centralized toast and notification system
• Fully responsive and accessibility-compliant

• Next.js
• TypeScript
• PostgreSQL
• Prisma
• Redis
• NextAuth
• Tailwind CSS
• next-intl
• MDX
• Zarinpal
• Telegram Bot
• Vercel

Full-stack engineer across frontend, backend, distributed systems, databases, CI/CD and cloud infrastructure for a cloud provider offering CDN and Infrastructure-as-a-Service.

• Component-based architecture for reusable, scalable frontend code, with animations and interactive charts for complex data
• Express.js services handling many concurrent requests, with robust validation
• Real-time features with Socket.IO
• Configured and managed Apache Kafka for high-throughput, fault-tolerant messaging
• MongoDB and MySQL data layers
• Rule engine integration to automate decision-making
• Internal CLIs for workflow automation
• GitLab CI/CD pipelines
• Initialized a Kubernetes cluster and migrated all services from standalone Docker deployments to Kubernetes; managed deployments, updates, configuration and troubleshooting
• Worked closely with sales, marketing and other teams

• Express.js
• Socket.IO
• Apache Kafka
• MongoDB
• MySQL
• Kubernetes
• Docker
• GitLab CI/CD
• Rule Engine
• CLI

One of a team of four building an Android app that provides a safe environment for payments between two parties.

• Refactored the app to MVVM with RxJava
• Group video calls over WebSocket
• Custom views for dialogs and progress bars
• Banking features such as withdrawals and transfers
• UI built with XML layouts
• Worked closely with the backend team

• Android
• MVVM
• RxJava
• WebSocket
• XML