Python Backend Developer

Developed an LMS from scratch for more than 500 students and 12 teachers, acting as the primary developer across backend and frontend. Designed the PostgreSQL schema and FastAPI API for courses, study groups, schedules, attendance, grades, and academic reporting.

Automated lesson tracking, including lesson start and end controls, lesson recording, and reports for the academic department, reducing lesson administration time by two times. Built WebSocket chat functionality, launched a CRM processing around 50 leads per day, implemented JWT authentication and role-based access, and configured Redis caching.

Deployed the system to a VPS with Docker Compose, CI/CD, and automated deployments. Wrote pytest tests and supported the platform in production.

Developed a FastAPI-based microservice architecture for file storage, processing, and management of more than 145 GB of data. Implemented MinIO as S3-compatible object storage, reducing storage costs by approximately 40%.

Optimized PostgreSQL queries through indexing, cutting data processing time in half. Delivered REST APIs with role-based access control supporting more than 10 permission levels through integration with an external API.

Maintained and optimized the Django backend of an educational platform operating under a load of more than 1,000 requests per minute. Built a scheduling system for over 200 daily lessons, including time-zone support and recurring events.

Implemented Celery for background jobs and notifications for more than 2,000 users. Optimized PostgreSQL queries, making complex database operations twice as fast.

Independently built and launched a SaaS product for inventory and sales accounting for small businesses. The production system has more than 20 active users and processes real sales transactions.

Designed the database schema and FastAPI REST API for products, sales, analytics, debt tracking, and installment payments. Implemented a multitenant architecture that isolates each store's data within a shared database.

Built a mobile-first React and TypeScript frontend and deployed production and development environments to a VPS using Docker Compose.