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  • SSAFY 15th

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Achievement: Pull Sharkx3Achievement: Pair Extraordinairex3Achievement: YOLOAchievement: Quickdraw

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@uoslife @UOS2021

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HyunseungYu/README.md

์œ ํ˜„์Šน

์ •ํ•ฉ์„ฑ, ์„ฑ๋Šฅ, ์œ ์ง€๋ณด์ˆ˜์„ฑ์„ ๊ธฐ์ค€์œผ๋กœ ๊ตฌ์กฐ๋ฅผ ์„ค๊ณ„ํ•˜๋Š” ๋ฐฑ์—”๋“œ ๊ฐœ๋ฐœ์ž์ž…๋‹ˆ๋‹ค.
์‹ค์„œ๋น„์Šค ์šด์˜, ๊ฒฐ์ œ ์‹œ์Šคํ…œ ์„ค๊ณ„, AWS ์ธํ”„๋ผ ์ด์ „, ๋ ˆ๊ฑฐ์‹œ SQL ์ตœ์ ํ™” ๊ฒฝํ—˜์„ ๋ฐ”ํƒ•์œผ๋กœ ์šด์˜ ์•ˆ์ •์„ฑยท์žฅ์•  ๋Œ€์‘ยท๋ณ€๊ฒฝ ๋น„์šฉ๊นŒ์ง€ ํ•จ๊ป˜ ๊ณ ๋ คํ•˜๋Š” ๊ฐœ๋ฐœ์„ ์ง€ํ–ฅํ•ฉ๋‹ˆ๋‹ค.

ํ•ต์‹ฌ ์„ฑ๊ณผ

  • 3๋งŒ+ ๊ฐ€์ž…์ž / MAU 3,500+ / ์•ฝ 2๋…„ ์šด์˜ ๊ทœ๋ชจ์˜ ํ•™์ƒ ์ปค๋ฎค๋‹ˆํ‹ฐ ์„œ๋น„์Šค ๊ฐœ๋ฐœ ๋ฐ ์šด์˜
  • ๋ˆ„์  ๊ฒฐ์ œ 4,000+๊ฑด / ๊ฒฐ์ œ ์žฅ์•  0๊ฑด / CS 0๊ฑด์„ ๋‹ฌ์„ฑํ•œ ๊ฒฐ์ œ ์‹œ์Šคํ…œ ์„ค๊ณ„ ๋ฐ ๊ณ ๋„ํ™”
  • Oracle INSERT ์„ฑ๋Šฅ 2,176ms โ†’ 31ms (-98%) ๊ฐœ์„ 
  • ๊ธฐ๋Šฅ ๊ตฌํ˜„์„ ๋„˜์–ด ์šด์˜ ์•ˆ์ •์„ฑ, ์žฅ์•  ๊ฒฉ๋ฆฌ, ๋ณ€๊ฒฝ ๋น„์šฉ๊นŒ์ง€ ํ•จ๊ป˜ ๊ณ ๋ คํ•˜๋Š” ๊ฐœ๋ฐœ ์ง€ํ–ฅ

ํ”„๋กœ์ ํŠธ ๊ฒฝํ—˜

๊ธฐ๊ฐ„ ํ”„๋กœ์ ํŠธ ์†Œ๊ฐœ ์—ญํ•  ๊ธฐ์ˆ 
2023.10 ~ 2025.11 ์‹œ๋Œ€์ƒ 3๋งŒ+ ๊ฐ€์ž…์ž ๊ทœ๋ชจ์˜ ์„œ์šธ์‹œ๋ฆฝ๋Œ€ ํ•™์ƒ ์ปค๋ฎค๋‹ˆํ‹ฐ ์„œ๋น„์Šค ๊ฐœ๋ฐœ ๋ฐ ์šด์˜ Backend Lead Kotlin Spring Boot PostgreSQL AWS
2025.04 ~ 2025.06 ์‹œ๋Œ€ํŒ… ์‹œ์ฆŒ6 1:1 ๋ฏธํŒ… ๊ตฌ์กฐ์— ๋งž์ถ˜ ๊ฒฐ์ œ ํ๋ฆ„ ๊ณ ๋„ํ™” ๋ฐ ์šด์˜ ์•ˆ์ •์„ฑ ๊ฐ•ํ™” Backend Lead Kotlin Spring Boot PortOne PostgreSQL
2024.02 ~ 2024.06 ์‹œ๋Œ€ํŒ… ์‹œ์ฆŒ4 ํ•™์ƒ ๋ฏธํŒ… ์„œ๋น„์Šค์— ์œ ๋ฃŒ ๊ฒฐ์ œ ์‹œ์Šคํ…œ์„ ์ฒ˜์Œ ๋„์ž…ํ•˜๊ณ  ์šด์˜ Backend Developer Kotlin Spring Boot PortOne PostgreSQL
2024.07 ~ 2024.12 ํ†ต๊ณ„ ์ž…๋ ฅ ์‹œ์Šคํ…œ Oracle/MyBatis ๊ธฐ๋ฐ˜ ํ†ต๊ณ„ ์‹œ์Šคํ…œ ์กฐํšŒยท๋ฐฑ์—… ์„ฑ๋Šฅ ๊ฐœ์„  Backend Intern (ํ•œ๊ตญํ†ต๊ณ„์ •๋ณด์› ์ธํ„ด) Java Spring MVC MyBatis Oracle
2023.06 ~ 2023.09 QR ๋ชจ๋ฐ”์ผ ์ฃผ๋ฌธ ์„œ๋น„์Šค ํ‚ค์˜ค์Šคํฌ UI ๋ฌธ์ œ๋ฅผ ์ค„์ด๊ธฐ ์œ„ํ•œ QR ๊ธฐ๋ฐ˜ ๋ชจ๋ฐ”์ผ ์ฃผ๋ฌธ ์„œ๋น„์Šค ๊ฐœ๋ฐœ Backend Developer JavaScript Express MySQL

์ฃผ์š” ๊ธฐ์—ฌ

์‹œ๋Œ€์ƒ

  • ์ด ๊ฐ€์ž…์ž 3๋งŒ+ / MAU 3,500+ / ์•ฝ 2๋…„ ์šด์˜ ๊ทœ๋ชจ ์„œ๋น„์Šค ๊ฐœ๋ฐœ ๋ฐ ์šด์˜
  • ์ธ์ฆ/์ธ๊ฐ€, ์‹œ๊ฐ„ํ‘œ, ํ•™์ , ๊ณต์ง€ ๋“ฑ ํ•ต์‹ฌ ๊ธฐ๋Šฅ์˜ ๋ฐฑ์—”๋“œ ๊ตฌํ˜„
  • ๋ฐฑ์—”๋“œ ๋ฆฌ๋“œ ๋ฐ ์šด์˜์ง„์œผ๋กœ์„œ ๊ธฐ๋Šฅ ํ™•์žฅ๊ณผ ์šด์˜ ์•ˆ์ •ํ™”์— ๊ธฐ์—ฌ
  • ์ธ์ฆ ์ฒด๊ณ„ ๊ฐœ์„ , ์ธํ”„๋ผ ์ด์ „, ์ „์šฉ ์ˆ˜์ง‘ ์„œ๋ฒ„ ๋ถ„๋ฆฌ๋กœ ์šด์˜ ํšจ์œจ๊ณผ ์žฅ์•  ๊ฒฉ๋ฆฌ ๊ตฌ์กฐ ๊ฐ•ํ™”

์‹œ๋Œ€ํŒ…

  • ์‹œ์ฆŒ4์—์„œ ์œ ๋ฃŒ ๊ฒฐ์ œ ์‹œ์Šคํ…œ์„ ์ฒ˜์Œ ๋„์ž…ํ•˜๊ณ , ์‹œ์ฆŒ6์—์„œ 1:1 ๊ตฌ์กฐ์— ๋งž์ถฐ ๊ฒฐ์ œ ํ๋ฆ„์„ ๊ณ ๋„ํ™”
  • ์ƒํƒœ ์ „์ด, ๋ฉฑ๋“ฑ์„ฑ, ์ฃผ๋ฌธ ๋‹จ์œ„ ์œ ๋‹ˆํฌ ์ œ์•ฝ, ์›นํ›… ๊ฒ€์ฆ ๊ตฌ์กฐ๋ฅผ ์ ์šฉํ•ด ์ค‘๋ณต ๊ฒฐ์ œ์™€ ์ƒํƒœ ๋ถˆ์ผ์น˜ ๋ฐฉ์ง€
  • ๋ˆ„์  ๊ฒฐ์ œ 4,000+๊ฑด / ๊ฒฐ์ œ ์žฅ์•  0๊ฑด / CS 0๊ฑด ๋‹ฌ์„ฑ
  • PG ํ…Œ์ŠคํŠธ API ๊ธฐ๋ฐ˜ ์‚ฌ์ „ ๊ฒ€์ฆ์œผ๋กœ ์šด์˜ ๋‹จ๊ณ„์˜ ๊ฒฐ์ œ ๋ฆฌ์Šคํฌ ์ตœ์†Œํ™”

ํ•œ๊ตญํ†ต๊ณ„์ •๋ณด์› ์ธํ„ด

  • ๋ณต์žกํ•œ ํ†ต๊ณ„ํ‘œ ์กฐํšŒ ์ฟผ๋ฆฌ ๋ฆฌํŒฉํ† ๋ง์œผ๋กœ SQL ๊ตฌ์กฐ ๊ฐœ์„ 
  • Oracle INSERT ์„ฑ๋Šฅ 2,176ms โ†’ 31ms (-98%) ๊ฐœ์„ 
  • ๋ฐ˜๋ณต ๋กœ์ง์„ ๋น„ํŠธ๋งˆ์Šคํฌ ๊ธฐ๋ฐ˜์œผ๋กœ ์ „ํ™˜ํ•ด ์กฐํšŒ ์„ฑ๋Šฅ ๋ฐ ์ฝ”๋“œ ๋‹จ์ˆœ์„ฑ ํ–ฅ์ƒ
  • ๋ ˆ๊ฑฐ์‹œ ํ†ต๊ณ„ ์‹œ์Šคํ…œ์˜ ์กฐํšŒยท๋ฐฑ์—… ๊ตฌ์กฐ ๊ฐœ์„  ๊ฒฝํ—˜ ์ถ•์ 

๊ธฐ์ˆ  ๋ฌธ์„œ

๊ธฐ์ˆ  ์Šคํƒ

Backend

Java Kotlin Spring Boot Spring MVC JPA MyBatis

Database

MySQL PostgreSQL Oracle

Infra / Tools

AWS Docker GitHub Actions

ํ•™๋ ฅ

  • 2026.01 ~ ํ˜„์žฌ : SSAFY 15๊ธฐ
  • 2018.03 ~ 2026.02 : ์„œ์šธ์‹œ๋ฆฝ๋Œ€ํ•™๊ต ์ปดํ“จํ„ฐ๊ณผํ•™๋ถ€
  • 2015.02 ~ 2018.02 : ์„ ๋ฆฐ์ธํ„ฐ๋„ท๊ณ ๋“ฑํ•™๊ต ์ •๋ณดํ†ต์‹ ๊ณผ

์ž๊ฒฉ์ฆ

  • ์ •๋ณด์ฒ˜๋ฆฌ๊ธฐ์‚ฌ (2024.09)
  • SQLD (2024.09)
  • TOEIC Speaking IH (2025.10)

ํ™œ๋™ ์ง€ํ‘œ

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