Backend engineer who believes that production should be boring.
If it’s not, someone probably forgot a test.

I build backend systems that stay calm under load,
handle edge cases gracefully,
and don’t surprise anyone at 3 a.m.

• Production is not a place to learn
• Boring systems are well-designed systems
• Tests are cheaper than on-call anxiety
• If it can fail, it eventually will

• Languages: Kotlin, Java, C
• Frameworks: Spring Boot, JPA, QueryDSL
• Databases: MySQL
• Infra: AWS
• Testing: TDD, Kotest(I even contribute)

• Payment & subscription systems that survive retries
• Idempotent APIs
• Scheduled billing jobs that don’t panic at midnight
• Concurrency-safe services

• MockK contributor
  Implemented a feature to restrict unsafe mocking behavior
  👉 mockk/mockk#1340

• Fewer production incidents
• Calmer on-call rotations
• Slightly happier PMs