Cloud Backend Developer at Qrealm October 2023 – July 2024

Led backend development and infrastructure management for a circular hospitality platform connecting hotels, affiliates, and clients.

• Architected REST APIs using Django and PostgreSQL for booking and marketing systems.
• Managed complete Azure infrastructure including Kubernetes clusters and database scaling.
• Developed advertising automation using Meta and Google Ads APIs for targeted campaigns.
• Implemented secure payment processing with Stripe for bookings, refunds, and commissions.
• Built automated HTTPS certificate management using OpenResty and Lua for dynamic subdomains.
• Designed email delivery system using Celery + RabbitMQ ensuring zero transactional loss.
• Configured CI/CD pipelines with Docker for microservice deployment.

Backend Developer at Ecoworld SA – Greek Ferries August 2022 – September 2023

Developed core backend systems for comprehensive travel and ferry booking platform.

• Built robust C# + LINQ endpoints for authentication, data filtering, and automated testing.
• Optimized MySQL database queries and schemas for large-scale booking datasets.
• Implemented comprehensive search functionality enhancing user experience.

Freelance & University Projects September 2018 – December 2022

• Developed Unity-based 2D & 3D games with C# networking and multiplayer systems.
• Created complete compiler implementation for advanced computer science coursework.
• Built various backend applications demonstrating software development expertise.