Backend
- Java
- Spring Boot
- REST APIs
- Authentication
- System Integration
Backend-focused Full Stack Developer
I’m a backend-focused full stack developer with 4+ years of experience building cloud infrastructure systems, monitoring tools, and production web applications. My main experience is in Java, Spring Boot, OpenStack, React, and payment-integrated web services.
Based in Canada. Available for backend and full-stack roles. Prior work spans Korea and Canada across cloud platforms, internal tooling, and user-facing products.
This portfolio is structured so recruiters and interviewers can understand what I built, which constraints mattered, and what outcomes the work created.
I started my software engineering career in Korea, building backend systems for cloud infrastructure platforms. I worked on VM recovery automation, GPU monitoring, authentication migration, and frontend modernization projects.
In Canada, I continued my career as a full-stack developer, building production landing pages and payment flows for business clients. I’m now focused on backend engineering roles where I can use my experience in Java, Spring Boot, cloud platforms, and production system design.
Backend
Cloud & Infrastructure
Frontend
Data & Web Operations
Designed and implemented a Java-based VM recovery system using OpenStack APIs to automate failover for cloud infrastructure.
Read case studyBuilt a real-time GPU monitoring and alerting system for cloud users using Spring Boot, InfluxDB, and React.
Read case studyBuilt production landing pages and payment flows as a solo full-stack developer in Canada.
Read case studyJava · Spring Boot · OpenStack · Docker · InfluxDB · React · TypeScript · PostgreSQL
I'm actively looking for software engineering roles, especially backend or full-stack positions where I can work on systems, infrastructure, and production web applications.