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Alexander User

@alexanderuser25

Backend developer at Soft Does who built a real-time notification system and an AI-powered chat with OpenAI integration.

Serbia

Message

At Soft Does, I built a notification system from scratch with CRUD operations, event listeners, and real-time WebSocket updates. I also developed an AI-powered chat with OpenAI integration for conversation summaries and automated task extraction.

At HackYourFuture Bootcamp, I engineered a REST API for Caffinity and achieved 95% test coverage for core endpoints. I also implemented authentication, role-based access control, and token expiration policies.

Experience

Work history, roles, and key accomplishments

Backend Developer

Soft Does

Feb 2026 - May 2026 (3 months)

Built a comprehensive notification system from scratch including CRUD operations, event listeners, and WebSocket real-time updates. Developed an AI-powered chat system with OpenAI integration, implementing conversation summarization and automated task extraction.

NodeJS WebSockets OpenAI CRUD Event Listeners Architecture

Backend Node.js Developer

HackYourFuture Bootcamp

Jun 2024 - Oct 2025 (1 year 4 months)

Engineered REST API for Caffinity, a cafe search platform, using MongoDB, Express, React and Node.js, enabling seamless real-time data retrieval. Achieved 95% test coverage for core endpoints using Jest, significantly reducing bugs and improving code reliability.