Location: Seoul, South Korea (UTC+9)
Remote: Yes
Willing to relocate: Yes, from late February 2027
Technologies: TypeScript, Node.js, NestJS, PostgreSQL, Redis, Kafka, Docker, Kubernetes, AWS, Terraform, CI/CD
Résumé/CV: on request
Email: sparkj.yoon@gmail.com
Code: https://github.com/sparkYJO1
Backend and infrastructure engineer, four years, the last two and a half as tech lead of a five person team. I took a questionnaire assessment product from nothing to production on my own: schema, NestJS services, the scoring engine, the AWS infrastructure in Terraform, and the CI/CD. I still own that Terraform, including every change since, not only the first apply.
I build through AI rather than with autocomplete. The problem I kept hitting was not model quality. Every engineer on the team fed the tools different context and got different answers, so I standardised the specification documents and code generators across the codebase until the output stopped depending on who asked.
I also put an LLM into another product for questionnaire intake and result translation. It runs in staging and has been demoed to the customer, so I would not call it shipped.
The Github is small backend libraries, each one measured rather than guessed at, if you would rather read code than a CV.
Looking for remote work with an overseas company, or relocation to Europe. Happy to talk about either.
Backend and infrastructure engineer, four years, the last two and a half as tech lead of a five person team. I took a questionnaire assessment product from nothing to production on my own: schema, NestJS services, the scoring engine, the AWS infrastructure in Terraform, and the CI/CD. I still own that Terraform, including every change since, not only the first apply.
I build through AI rather than with autocomplete. The problem I kept hitting was not model quality. Every engineer on the team fed the tools different context and got different answers, so I standardised the specification documents and code generators across the codebase until the output stopped depending on who asked.
I also put an LLM into another product for questionnaire intake and result translation. It runs in staging and has been demoed to the customer, so I would not call it shipped.
The Github is small backend libraries, each one measured rather than guessed at, if you would rather read code than a CV.
Looking for remote work with an overseas company, or relocation to Europe. Happy to talk about either.
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