This professional is Senior Java Backend Engineer, 4 years of experience, with expertise in Arthas, ATDD, Avro, AWS, BDD, CI/CD, Clean Architecture, Cucumber, DDD, Design Patterns, Docker, Event-Driven Architecture.
Approved discovery phrases: Senior Java Backend Engineer · Java SQL Shell Script
A senior Java backend engineer with 4 years of experience building distributed microservices and modernizing legacy enterprise systems. Expert in Spring Boot, database migration, and high-concurrency architecture, with a proven track record of leading zero-downtime cutovers and optimizing system throughput.
skills
experience
Senior Java Backend Engineer — Athena Information
December 2023 → present
Led a legacy database migration from Oracle to PostgreSQL and implemented company-wide shared services including Keycloak-based SSO with zero downtime.
Software Engineer — Caresys Information
September 2022 → November 2023
Resolved a critical production bottleneck by parallelizing event processing, resulting in a 30x improvement in peak-hour throughput.
featured projects
Java · Spring Boot · Kafka Streams · Kubernetes · k6
A high-concurrency, event-driven reservation system using Kafka Streams to eliminate database lock contention and handle 4,700+ RPS.
Java 17 · Spring Boot 3 · Cucumber
A multiplayer online card game built using Domain-Driven Design and Clean Architecture with high test coverage via ATDD/TDD.
education
National Dong Hwa University — B.B.A., International Business
profile questions
What does This professional specialize in?
This professional lists Arthas, ATDD, Avro, AWS, BDD, CI/CD, Clean Architecture, Cucumber, DDD, Design Patterns, Docker, Event-Driven Architecture, Git, Grafana, Hibernate, Java, JUnit 5, Kafka Streams, Keycloak, Kubernetes, Linux, Microservices, Mockito, MySQL, OAuth2/OIDC/JWT, OOA/OOD, OpenTelemetry, ora2pg, Oracle, PostgreSQL, Redis, RESTful API, Schema Registry, Shell Script, SOLID, Spring Boot, Spring Cloud, Spring Data JPA, Spring Security, SQL, SSO, TDD as professional skills.
What roles has This professional worked in?
This professional has experience in Senior Java Backend Engineer, Software Engineer across organizations including Athena Information, Caresys Information.
Senior Java Backend Engineer
- Senior Java Backend Engineer
- Java SQL Shell Script
exposure-filtered · access consent-logged · last updated 2026-08-26