@RequestMapping("/api")
public class RentalController {
void handleOrder(OrderEvent e) {
processor.execute(e);
}
✓ service started on :8080
Saugat
Thapa .
Chhetri
Java Backend Developer crafting resilient fintech and microservices systems with Spring Boot, Quarkus & AWS. Graduate Researcher applying ML to cybersecurity at Texas Southern University.
Turning complex systems into clean, reliable code.
Engineering at the intersection of backend reliability and intelligent systems.
I'm a Java Backend Developer with hands-on experience building production-grade fintech and microservices applications. My engineering spans from designing scalable REST APIs to containerizing services with Docker and orchestrating CI/CD pipelines that ship reliably.
Currently pursuing my M.S. in Computer Science at Texas Southern University, where I apply machine learning to cybersecurity research — building anomaly detection models for Advanced Persistent Threat identification using Hidden Markov Models.
I thrive at the intersection of distributed systems, event-driven architecture, and cloud-native deployments. Whether migrating a monolith to microservices, optimizing SQL performance, or architecting a RAG-powered chatbot, I bring both engineering rigor and product-minded thinking.
Skills & Technologies
A production-tested stack across fintech systems, cloud deployments, and ML research.
Professional Experience
Building and scaling production systems in fintech and microservices environments.
- Delivered 20+ feature enhancements across microfinance and inventory platforms, improving critical operational workflows for end users.
- Led the architectural migration from a monolithic system to REST-based microservices using Quarkus — reducing deployment cycle time by 10%.
- Achieved ~50% performance improvement in application speed and report generation through targeted Java refactoring, SQL query rewrites, and index tuning.
- Containerized multiple backend services with Docker and established CI/CD pipelines via GitHub Actions, enabling zero-downtime production releases.
- Built booking and payment modules for a Futsal Management System from scratch using Java EE, JSF, and JAX-RS.
- Integrated third-party payment gateway APIs with robust error handling, retry logic, and transaction consistency guarantees.
- Implemented cron-based job scheduling to automate recurring booking workflows, eliminating manual intervention for daily operations.
Research Experience
Applying machine learning to real-world cybersecurity challenges at the graduate level.
- Developed Python-based data processing pipelines for large-scale cybersecurity log analysis, enabling structured, clean input for ML model training workflows.
- Implemented Hidden Markov Models (HMM) to detect behavioral anomalies and predict multi-stage APT (Advanced Persistent Threat) attack sequences.
- Designed synthetic cybersecurity dataset generation algorithms to augment training data and validate model performance across diverse attack vectors.
Featured Projects
Production-minded side projects exploring distributed systems and AI-powered backends.
A production-ready rental marketplace backend built with modular domain-driven design. Features structured observability with custom request tracing, JWT security, event-driven messaging, and fully automated cloud deployments.
An AI-powered university assistant leveraging Retrieval-Augmented Generation (RAG). Crawls the university website, vectorizes document chunks, and answers student queries with contextually accurate responses and source citations.
A fully distributed microservices backend for order processing. Features centralized configuration management, dynamic service discovery via Eureka, and JWT-based authentication enforced across the entire service mesh.
Education
Rigorous computer science foundations — from algorithms to distributed systems and ML research.
Computer Science
& Information Technology
Let's Build Something Great.
Open to full-time backend engineering roles, research collaborations, and interesting side projects. Based in the USA — remote-friendly worldwide.
Actively seeking Java/Backend Developer positions in fintech, cloud-native, or distributed systems. Also open to research collaborations in ML & cybersecurity.