I am a backend-focused engineer who enjoys solving practical problems across both development and operations.
Rather than limiting myself to feature implementation alone, I pay close attention to how systems are deployed, maintained, and improved in real environments.

My experience includes building backend services, supporting enterprise workflows, improving legacy systems, tuning databases, resolving operational issues, and using AI as a practical engineering tool for productivity and structured problem-solving. I have also taken leadership roles in multiple team projects, valuing collaboration, ownership, and effective communication throughout the development process.

• Built backend services with Java / Spring Boot in service-oriented projects
• Worked on enterprise system development and maintenance in real business environments
• Supported both new feature development and legacy system improvement
• Experienced in PowerBuilder-based legacy ERP maintenance as well as newer in-house system development
• Improved application performance through query tuning, caching, and structural optimization
• Experienced in deployment, logging, monitoring, and issue tracking
• Worked on practical output-related tasks such as report templates, barcode/label handling, and printing support
• Used AI to improve documentation quality, troubleshooting flow, workflow support, and engineering productivity
• Took leadership roles in multiple team projects and coordinated development with a strong sense of ownership
• Experienced in collaborative project environments, including communication, task coordination, and practical problem solving
• Strong in troubleshooting and resolving real-world issues across development and operations
• Actively use AI to improve documentation quality, issue analysis, workflow support, and engineering productivity

Currently contributing to the development and maintenance of an internal ERP environment in a real business setting.
Working on both new in-house ERP features and legacy PowerBuilder-based ERP maintenance, while supporting a gradual transition between systems.
This experience strengthened my understanding of enterprise workflows, operational stability, reporting/output requirements, and practical issue resolution in production-like environments.

Backend service development focused on usability and performance.
Applied caching and deployment strategies to improve service efficiency and operational stability.

Built a business-oriented service with emphasis on workflow, structured backend design, and search optimization.
Strengthened my understanding of enterprise data flow and service logic.

Developed a platform for collecting and delivering market price information.
Used crawling and backend processing to transform raw data into usable service information.

Worked across both frontend and backend with attention to responsive UI, data flow, and user experience.
This project helped me build a broader perspective on end-to-end service development.

Participated in an AI-related service project, expanding my understanding of how software systems can connect with AI-driven use cases.

• Taking ownership in projects and contributing as both a developer and a team lead when needed
• Strong in troubleshooting and resolving issues across development, deployment, and operations
• Balancing technical structure with actual business workflow and real user requirements
• Experienced in collaborative environments that require communication, coordination, and iterative improvement
• Comfortable working with both modern backend stacks and legacy enterprise systems, including SVN-based workflows
• Using AI not as a shortcut, but as a tool to improve execution quality, analysis depth, and engineering productivity

• Systems that work well in production, not only in development
• Code that is maintainable, reliable, and practical
• Clear communication and structured collaboration
• Continuous improvement in both technical quality and workflow efficiency
• Taking responsibility not only for building features, but also for keeping systems stable

• Backend architecture and scalable service design
• Enterprise and internal system development
• Infrastructure reliability and deployment automation
• Database tuning and operational optimization
• AI-assisted engineering workflows

• GitHub: mini-xi
• Email: gam1205@naver.com