A high-throughput, consistent ticket reservation system that can process 83000+ reservations per second
A simple core banking solution with microservices using Domain Driven Design and Event Sourcing
A simple fixed-throughput latency testing tool
A microservices-based project following the CQRS concept.
[중견기업 합격, 연봉 5000만원 이상] 주식을 사고파는 시스템
Project to run concurrent traffic test easy for JUnit
A payment transfer service reaching 7000 RPS.
gRPC service testing environment with Prometheus, Grafana, and InfluxDB monitoring stack. Features containerized deployment, JMeter DSL and k6 load testing integration, and automated metric collection
Using k6 load tests with Java
Enterprise SCM Platform. Java 21, Spring Boot 4, PostgreSQL 16, Redis 7, Kafka, K8s, Istio. Multi-tenant, distributed transactions, CQRS, event sourcing, chaos engineering, SOC 2/GDPR compliant.
A high-performance Payment Gateway API built with Spring Boot 3 to solve concurrency race conditions and guarantee idempotency using Redis and PostgreSQL Pessimistic Locking.
Spring Boot REST API responsible for managing voting sessions.
실시간 통신 분석 프로젝트 ( Polling, Long Polling, SSE, WebSocket, STOMP )
Auth platform: RSA-signed JWT, OTP intent-scoping (SIGNUP/LOGIN/2FA), device-aware sessions, Redis brute-force limiting. Deployed AWS EC2 · Docker · GitHub Actions. 40 users / 10k+ reqs, zero crashes.
Use of Virtual Threads with Spring Framework
Companion code for Spring Boot 4 Performance in Practice — JFR, async-profiler, virtual threads, GraalVM AOT, 50× throughput
Caso de Estudio 1 del Examen de Fin de Carrera 2024B: API RESTful del Sistema de Gestión de Matriculas Académicas
Draft - 다양한 성능 테스트 엔진을 통합 실행할 수 있는 확장형 성능 테스트 플랫폼
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