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BEDongryeol/README.md

Inwoo Jeong | Backend Engineer

KotlinยทJava์™€ Spring์„ ๊ธฐ๋ฐ˜์œผ๋กœ ๊ธฐ๋Šฅ์„ ์„ค๊ณ„ํ•˜๊ณ  AWS ํ™˜๊ฒฝ์—์„œ ๋ฐฐํฌยท์šด์˜ํ•ด ์™”์Šต๋‹ˆ๋‹ค.
์šด์˜ ๋ฌธ์ œ๋ฅผ ์žฌํ˜„ํ•˜๊ณ  ๋ฐ˜๋“œ์‹œ ์ง€์ผœ์•ผ ํ•  ์กฐ๊ฑด์„ ๋จผ์ € ์ •ํ•œ ๋’ค, ๋” ๋‹จ์ˆœํ•œ ๊ตฌ์กฐ๋กœ ๊ฐœ์„ ํ•˜๊ณ  ํ…Œ์ŠคํŠธ์™€ ๋‹จ๊ณ„์  ๋ฐฐํฌ๋กœ ๊ฒ€์ฆํ•ฉ๋‹ˆ๋‹ค.


Technical Stack


Engineering Focus


Experience

HDC Labs โ€” Backend Engineer (May 2023 ~ Present)
โžค ๋ฉ€ํ‹ฐํ…Œ๋„ŒํŠธ ์šด์˜ ํ”Œ๋žซํผ์˜ ๊ฐœ๋ฐœ ๊ธฐํš, ๋ฐฑ์—”๋“œ ๊ฐœ๋ฐœ๊ณผ AWS ์šด์˜
โžค ๊ธฐ๊ธฐ ์Šน์ธ, ์œ„์น˜ ๊ฒ€์ฆ, ๊ทผํƒœ ์ƒํƒœยท์ •์ฑ… ์ฒ˜๋ฆฌ์™€ ERP ๊ธ‰์—ฌ ๋ฐ์ดํ„ฐ ์—ฐ๊ณ„
โžค ์š”๊ตฌ์‚ฌํ•ญ ์ •์˜๋ถ€ํ„ฐ APIยท๋ฐ์ดํ„ฐ ํ๋ฆ„ ์„ค๊ณ„, ํ…Œ์ŠคํŠธ, ๋ฐฐํฌ์™€ ๋ชจ๋‹ˆํ„ฐ๋ง๊นŒ์ง€ ์ˆ˜ํ–‰
โžค HRยทERPยทํ˜„์žฅ ์šด์˜ ์กฐ์ง๊ณผ ์ •์ฑ… ๋ฐ ์™ธ๋ถ€ ์‹œ์Šคํ…œ ์—ฐ๊ณ„ ๋ฒ”์œ„ ํ˜‘์˜

Soomcare โ€” Backend Developer (May 2022 ~ Nov 2022)
โžค ์ฒœ์‹ยทCOPD ์‚ฌ์šฉ์ž์˜ ๊ฑด๊ฐ• ๊ธฐ๋กยท๋ณด๊ณ ์„œ, ์•ฝ๋ฌผยท์ฆ์ƒ ๊ด€๋ฆฌ์™€ ์ปค๋ฎค๋‹ˆํ‹ฐ API ๊ฐœ๋ฐœ
โžค Spring WebFlux ๊ธฐ๋ฐ˜ API์™€ GitLabยทJenkinsยทDocker ๋นŒ๋“œยท๋ฐฐํฌ ํ™˜๊ฒฝ ๊ตฌ์„ฑ


Selected Engineering Work

1. ์ด๋ฒคํŠธ ์ˆœ์„œ์— ํ”๋“ค๋ฆฌ์ง€ ์•Š๋Š” ์ƒํƒœ ํŒ๋‹จ

ํ‡ด๊ทผ ์ดํ›„ ์žฌ์ถœ๊ทผ ์ด๋ฒคํŠธ๊ฐ€ ๋“ค์–ด์˜ค๋ฉด ๊ธฐ์กด ๋น„์ •์ƒ ์ƒํƒœ๊ฐ€ ์ •์ƒ์œผ๋กœ ๋ฐ”๋€Œ๋Š” ๋ฌธ์ œ๋ฅผ ์ƒํƒœ ์ด๋ ฅ์—์„œ ์žฌํ˜„ํ–ˆ์Šต๋‹ˆ๋‹ค.

  • ์„ ํ–‰ ํ‡ด๊ทผ ๊ธฐ๋ก์„ ํ™•์ธํ•˜์ง€ ์•Š๋˜ ๋ถ„๊ธฐ๋ฅผ ์›์ธ์œผ๋กœ ํŠน์ •
  • ์ถœํ‡ด๊ทผ ๊ธฐ๋ก๊ณผ ํœด๊ฐ€ ๊ฒฝ๊ณ„๋ฅผ ํ•จ๊ป˜ ๋‹ค์‹œ ํŒ๋‹จํ•˜๋„๋ก ์ƒํƒœ ๊ทœ์น™ ํ†ตํ•ฉ
  • ์•ผ๊ฐ„ยท์ฃผ๊ฐ„ยท๋ถ€๋ถ„ํœด๊ฐ€ยท์ „์ผํœด๊ฐ€ ํšŒ๊ท€ ํ…Œ์ŠคํŠธ ํ›„ ๋‹จ๊ณ„์ ์œผ๋กœ ๋ฐฐํฌ

2. Redis GEO ์œ„์น˜ ๊ฒ€์ฆ์„ ์ฝ๊ธฐ ์ „์šฉ ๊ฒฝ๋กœ๋กœ ์ „ํ™˜

์œ„์น˜ ํ™•์ธ ์š”์ฒญ๋งˆ๋‹ค ์ขŒํ‘œ๋ฅผ ์ž„์‹œ ์ €์žฅยท์‚ญ์ œํ•˜๋˜ ์ฒ˜๋ฆฌ ํ๋ฆ„์„ GEOSEARCH ๊ธฐ๋ฐ˜ ์กฐํšŒ๋กœ ๋ณ€๊ฒฝํ–ˆ์Šต๋‹ˆ๋‹ค.

  • ๊ฐ€์žฅ ํฐ ํ—ˆ์šฉ ๋ฐ˜๊ฒฝ์œผ๋กœ ํ›„๋ณด๋ฅผ ์กฐํšŒํ•œ ๋’ค ์œ„์น˜๋ณ„ ๋ฐ˜๊ฒฝ๊ณผ ์‹ค์ œ ๊ฑฐ๋ฆฌ ๋น„๊ต
  • ์š”์ฒญ ๊ฒฝ๋กœ์˜ Redis ์“ฐ๊ธฐ์™€ ์‹คํŒจ ์‹œ ๋‚จ์„ ์ˆ˜ ์žˆ๋Š” ์ž„์‹œ ๋ฐ์ดํ„ฐ ์ œ๊ฑฐ
  • POI 70๊ฐœ ๋™์ผ ์กฐ๊ฑด ๋ฒค์น˜๋งˆํฌ์—์„œ ์ฒ˜๋ฆฌ๋Ÿ‰ ์•ฝ 6.5๋ฐฐ, Redis ๋‹จ์ผ ์Šค๋ ˆ๋“œ ์ ์œ  ์•ฝ 1/6 ํ™•์ธ

3. ๋ถ„์‚ฐ ํ™˜๊ฒฝ์—์„œ ์‹ค์ œ ์—ฐ๊ฒฐ ์„œ๋ฒ„๋กœ SSE ์ด๋ฒคํŠธ ์ „๋‹ฌ

์ด๋ฒคํŠธ ์ƒ์„ฑ ์„œ๋ฒ„์™€ ์‚ฌ์šฉ์ž์˜ SSE ์—ฐ๊ฒฐ ์„œ๋ฒ„๊ฐ€ ๋‹ฌ๋ผ์งˆ ์ˆ˜ ์žˆ๋Š” ํ™˜๊ฒฝ์—์„œ ์ „๋‹ฌ ๊ฒฝ๋กœ๋ฅผ ๊ตฌ์„ฑํ–ˆ์Šต๋‹ˆ๋‹ค.

  • ์‚ฌ์šฉ์ž์™€ ์—ฐ๊ฒฐ ์„œ๋ฒ„์˜ ์œ„์น˜๋ฅผ Registry๋กœ ๊ด€๋ฆฌ
  • ๋…ธ๋“œ๋ณ„ Redis Stream, Consumer Group๊ณผ ACK๋ฅผ ์ด์šฉํ•ด ๋ฉ”์‹œ์ง€ ์ „๋‹ฌ
  • heartbeatยทTTL ๊ธฐ๋ฐ˜ ์—ฐ๊ฒฐ ์ •๋ฆฌ์™€ Pending ์žฌ์ฒ˜๋ฆฌ, ์‹คํŒจ ๋ฉ”์‹œ์ง€ ๋ถ„๋ฆฌ

4. ๊ฒ€์ฆ๊ณผ ๋ณต๊ตฌ๋ฅผ ํฌํ•จํ•œ ๋ฐฐํฌ ํ๋ฆ„ ๊ณตํ†ตํ™”

์„œ๋น„์Šค๋งˆ๋‹ค ๋‹ฌ๋ž๋˜ Jenkins ๋ฐฐํฌ ์ ˆ์ฐจ๋ฅผ ํŠธ๋ž˜ํ”ฝ ๋ถ„๋ฆฌ๋ถ€ํ„ฐ ์‹คํŒจ ๋ณต๊ตฌ๊นŒ์ง€ ํฌํ•จํ•˜๋Š” ๊ณตํ†ต ํ๋ฆ„์œผ๋กœ ํ†ตํ•ฉํ–ˆ์Šต๋‹ˆ๋‹ค.

  • ๋Œ€์ƒ ์„œ๋ฒ„๋ฅผ ํŠธ๋ž˜ํ”ฝ์—์„œ ๋ถ„๋ฆฌํ•˜๊ณ  ๊ธฐ์กด ์ปจํ…Œ์ด๋„ˆ์™€ ์ด๋ฏธ์ง€ ๋ณด๊ด€
  • ๋กœ์ปฌ ์ƒํƒœ ํ™•์ธ๊ณผ ๋กœ๋“œ๋ฐธ๋Ÿฐ์„œ ์ƒํƒœ ํ™•์ธ์„ ์ˆœ์ฐจ ์ˆ˜ํ–‰
  • ๊ธฐ๋™ ๋˜๋Š” ๊ฒ€์ฆ ์‹คํŒจ ์‹œ ์ด์ „ ๋ฒ„์ „์„ ๋ณต์›ํ•˜๊ณ  ํŠธ๋ž˜ํ”ฝ์— ์žฌ๋“ฑ๋ก

Working Principles

  • ํ•ด๊ฒฐ์ฑ…๋ณด๋‹ค ๋จผ์ € ๋ฌธ์ œ์™€ ๋ฐ˜๋“œ์‹œ ์ง€์ผœ์•ผ ํ•  ์กฐ๊ฑด์„ ์ •์˜ํ•ฉ๋‹ˆ๋‹ค.
  • ์šด์˜ ์ด๋ ฅ๊ณผ ์ง€ํ‘œ๋กœ ์›์ธ์„ ์ขํžˆ๊ณ , ๋ณ€๊ฒฝ ์ „ํ›„๋ฅผ ๊ฐ™์€ ์กฐ๊ฑด์—์„œ ๊ฒ€์ฆํ•ฉ๋‹ˆ๋‹ค.
  • ๊ธฐ๋Šฅ ๊ตฌํ˜„์„ ๋ฐฐํฌ๋กœ ๋๋‚ด์ง€ ์•Š๊ณ  ๋ชจ๋‹ˆํ„ฐ๋ง๊ณผ ์‹คํŒจ ๋ณต๊ตฌ๊นŒ์ง€ ํ•˜๋‚˜์˜ ํ๋ฆ„์œผ๋กœ ๋ด…๋‹ˆ๋‹ค.
  • ๊ธฐ์ˆ ์  ์˜๊ฒฌ์ด ๋‹ฌ๋ผ๋„ ๊ฒฐ์ • ์ดํ›„์—๋Š” ํ•ฉ์˜ํ•œ ๋ฐฉํ–ฅ ์•ˆ์—์„œ ์œ„ํ—˜์„ ํ†ต์ œํ•  ๋ฐฉ๋ฒ•์„ ์ฐพ์Šต๋‹ˆ๋‹ค.

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