Abolfazl Nowruzian

Social networking platform for tennis players to book courts, organize matches, chat, and connect with athletes. ● Designed and developed scalable REST APIs using Golang, Gin, and MongoDB for booking, match organization, and social features. ● Implemented secure authentication and authorization using JWT. ● Built WebSocket-based real-time messaging for in-app user communication. ● Developed event-driven background workers using RabbitMQ and integrated FCM for real-time push notifications ● Optimized MongoDB queries and backend logic to improve API performance and reduce unnecessary processing. ● Implemented system observability and monitoring using Prometheus and Grafana to track API performance, resource utilization, and error rates. ● Containerized services with Docker and documented APIs using Swagger for frontend and third-party integrations.

Enterprise system for carpet manufacturers. ● Built inventory and production-to-sales tracking modules using Golang, PostgreSQL, DDD principles, and unit/integration tests.

Coffee production and e-commerce platform. ● Developed production-ready RESTful APIs using Golang, Gin, and MongoDB for product, order, and admin workflows. ● Implemented JWT-based security and improved maintainability through service-repository separation.

VoIP-based telecommunication services platform. ● Assisted in optimizing VoIP data workflows using MySQL, Asterisk, and Cassandra, including incremental call record updates.

Microservices-based wallet, referral, and discount code platform. ● Designed microservices for wallet, referral, and discount code modules using Golang, gRPC, and grpc-gateway. ● Integrated Kong API Gateway for routing/security and Dockerized services for deployment.

Built a custom WireGuard Exporter in Go to expose system network metrics, enabling integration with Prometheus for monitoring and alerting.