Maintainability
I consider version upgrades and incident response after release, not only the point when implementation is complete.
About
Ka0n
SE / Software Engineer
From shaping specifications to implementation, release, and maintenance, I work with the whole system—and the people who will work with it later—in mind.
Profile
Hands-on experience across the full flow of small software projects.
I mainly work on small commissioned development projects. I take part from initial online and in-person meetings and proposals through specification alignment, design, implementation, testing, UAT, release, and ongoing maintenance.
During proposals, I prepare technical materials including business flows, screen lists, database definitions, and screen layouts. After delivery, my work includes version upgrades, improvements, and incident investigation and response.
I also review junior colleagues' deliverables before PM review, including design documents, implementation work, and release-readiness materials across project phases.
How I work
What I value
Clarity for others
I aim for design, code, and documentation whose intent and structure another person can understand later.
System-wide context
I try to understand the business context and the flow from proposal through operations instead of focusing on one phase alone.
Direction
Where I am heading
I am broadening my technical understanding and implementation experience toward becoming an engineer who can choose appropriate technologies and architecture for business requirements.
Skill inventory
Skills, shown by context of use
The inventory uses experience categories, not stars, percentages, or subjective scores.
- Professional
- Used in professional work
- Personal Project
- Used in personal projects
- Learning / Evaluation
- Studied or evaluated
- Exposure / Training
- Encountered in training
Backend
- JavaProfessional
- Spring BootProfessional
- Spring SecurityProfessional
- REST APIPersonal Project
- Spring Data JPAPersonal Project
- FlywayPersonal Project
- OpenAPI / SwaggerPersonal Project
Frontend
- HTMLProfessional
- CSSProfessional
- JavaScriptProfessional
- BootstrapProfessional
- Tailwind CSSProfessional
- ReactPersonal Project
- FlutterPersonal Project
Database
- MySQLProfessional
- Oracle DatabaseExposure / Training
Infrastructure / Cloud
- AWS EC2Professional
- AWS RDSProfessional
- DockerProfessional
- CI/CDLearning / Evaluation
- AWS App RunnerLearning / Evaluation
- AWS FargateLearning / Evaluation
Site / Content
- EleventyPersonal Project
- SassPersonal Project
- Decap CMSPersonal Project
Identity / Security
- KeycloakPersonal Project
- OpenID Connect / PKCEPersonal Project
Test / Quality
- JUnitPersonal Project
- VitestPersonal Project
- Testing LibraryPersonal Project
- TestcontainersPersonal Project
- PlaywrightPersonal Project
- axe-corePersonal Project
Tools / API
- GitProfessional
- GitHubProfessional
- SeleniumProfessional
- Google Maps APIProfessional
- Excel / VBA / GASProfessional
- Generative AI / CodexProfessional
- freee API integrationProfessional
Public account
GitHub
I use the name Ka0n on GitHub.