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royalihasan/README.md

Roy Ali Hasan

Backend engineer. Building distributed systems that run in production.

Java Spring Boot Apache Kafka Golang PostgreSQL Docker GCP


What I am building

Visapot: Early-stage startup. Globally deployed visa tracking and community platform where applicants monitor progress, explore live embassy approval and rejection rates, post questions, and connect with a growing traveler community worldwide.

Sole engineer responsible for the entire product from system design to live production. Grown to 2,000+ active users with zero paid marketing.

Website · Play Store · App Store

Golang GCP PostgreSQL Supabase Flutter Vue.js Firebase Protobuf GitHub Actions Docker


Texurix: Telecom-grade SMS gateway with real-time AI spam detection. Every outbound message passes through a Hybrid CNN model trained on 55,000 messages before reaching the carrier.

Greater than 95% spam detection accuracy. Less than 5% false positive rate. Sub-100ms inference. Full Kafka pipeline from intake to SMPP delivery.

Java Spring Boot Apache Kafka Python FastAPI PyTorch PostgreSQL Docker SMPP


Core stack

Java · Spring Boot · Apache Kafka · Golang · PostgreSQL · Docker · GCP · Protobuf · CI/CD · Python · Node.js · Kubernetes


Writing

Integrating Oracle Database with Debezium and Kafka Connect for CDC 9,500 views · 5,700 reads · 60% read ratio · Ranks second on Google for "Oracle Debezium Kafka CDC integration" , right next to official Debezium documentation

Node.js in Production: How the process Module Improves Performance, Stability, and Scaling Medium


Contact

LinkedIn · Email · Website

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