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SeongUK18/README.md

Hi there! ๐Ÿ‘‹ I'm SeongUk Han

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๐Ÿ‘จโ€๐Ÿ’ป About Me

๋ฐ์ดํ„ฐ ๋ชจ๋ธ๋ง๊ณผ API ์„œ๋ฒ„ ๊ฐœ๋ฐœ, AI ํŒŒ์ดํ”„๋ผ์ธ ์„ค๊ณ„์— ๊ฐ•์ ์„ ๊ฐ€์ง„ ๋ฐฑ์—”๋“œ ์ค‘์‹ฌ์˜ Software Engineer ํ•œ์„ฑ์šฑ์ž…๋‹ˆ๋‹ค.

[Backend & System]

  • Django, FastAPI ๊ธฐ๋ฐ˜ ์„œ๋ฒ„ ์•„ํ‚คํ…์ฒ˜ ์„ค๊ณ„ ๋ฐ ์šด์˜
  • PostgreSQL Full-Text Search ๋„์ž…, ORM ์ตœ์ ํ™”๋ฅผ ํ†ตํ•œ ๋Œ€์šฉ๋Ÿ‰ ๋ฐ์ดํ„ฐ ์กฐํšŒ ์„ฑ๋Šฅ ๊ฐœ์„ 
  • Docker, Docker Compose ๊ธฐ๋ฐ˜ ์ปจํ…Œ์ด๋„ˆ ํ™˜๊ฒฝ ๊ตฌ์ถ• ๋ฐ ๋ฐฐํฌ

[AI & Data Engineering]

  • Bi-Encoder + Cross-Encoder ๊ฒฐํ•ฉ ๋‹ค๋‹จ๊ณ„ ์ธ์žฌ ์ถ”์ฒœ ํŒŒ์ดํ”„๋ผ์ธ ๊ตฌ์ถ•
  • LangGraph ํ™œ์šฉ ๋ฐ์ดํ„ฐ ์ฆ๊ฐ• ๋ฐ LLM ๊ธฐ๋ฐ˜ ์ž์—ฐ์–ด ๊ฒ€์ƒ‰ยท์ด๋ ฅ์„œ ์š”์•ฝ ๊ธฐ๋Šฅ ๊ฐœ๋ฐœ
  • LSTM ๋”ฅ๋Ÿฌ๋‹ ๋ชจ๋ธ์„ ํ™œ์šฉํ•œ ์„ค๋น„ ์—๋„ˆ์ง€ ์‚ฌ์šฉ๋Ÿ‰ ์ตœ์ ํ™” (์•ฝ 20% ๋น„์šฉ ์ ˆ๊ฐ)

๐Ÿ’ผ Work Experience

Smilegate Holdings

Talent Relations ํŒ€ / ์ธํ„ด | 2025.04 โ€”

DX/AX ๊ธฐ๋ฐ˜ ํ† ํƒˆ ์ธํ…”๋ฆฌ์ „์Šค ํ”Œ๋žซํผ (Project TIPS) ๊ฐœ๋ฐœ

๊ฒŒ์ž„ ์—…๊ณ„์— ๋ถ„์‚ฐ๋œ ์ธ์žฌ ๋ฐ์ดํ„ฐ๋ฅผ ํ†ตํ•ฉ ๊ด€๋ฆฌํ•˜๊ณ , AI ์ž„๋ฒ ๋”ฉ/๋ฆฌ๋žญํ‚นยทLLM ๋ชจ๋ธ์„ ํ™œ์šฉํ•˜์—ฌ ๊ฒ€์ƒ‰ยทํ‰๊ฐ€ยท๋งค์นญ์„ ์ž๋™ํ™”ํ•œ TA ์ž์ฒด HR ํ”Œ๋žซํผ์„ Full-stack์œผ๋กœ ๊ธฐํšยท์„ค๊ณ„ยท๊ฐœ๋ฐœยท์šด์˜๊นŒ์ง€ ์ „ ๊ณผ์ •์„ ์ฃผ๋„ํ–ˆ์Šต๋‹ˆ๋‹ค.

๐Ÿ›  ์ฃผ์š” ์„ฑ๊ณผ

  • Profile List ๊ฒ€์ƒ‰ ์„ฑ๋Šฅ 96% ๊ฐœ์„  (10s โ†’ 0.4s)
    • PostgreSQL Full-Text Search ๋„์ž… ๋ฐ Django ORM ์ตœ์ ํ™”
    • N+1 ์ฟผ๋ฆฌ ํ•ด๊ฒฐ (Subquery, OuterRef ํ™œ์šฉ), Raw SQL ๊ตฌ์กฐ ๊ฐœ์„ 
  • ํ†ตํ•ฉ ๊ฒ€์ƒ‰ API ์„ฑ๋Šฅ 94% ๊ฐœ์„  (3.5s โ†’ 0.2s)
    • ๋ถˆํ•„์š”ํ•œ prefetch_related ์ œ๊ฑฐ ๋ฐ only() ๋ฉ”์„œ๋“œ๋ฅผ ํ†ตํ•œ 17.5๋ฐฐ ์„ฑ๋Šฅ ํ–ฅ์ƒ
  • ๋Œ€์šฉ๋Ÿ‰ DOM ๋ Œ๋”๋ง 99% ๊ฐœ์„  (48s โ†’ 0.61s)
    • ์ •์  ๋“œ๋กญ๋‹ค์šด์„ Debouncing + ์ง€์—ฐ ๋กœ๋”ฉ ๊ธฐ๋ฐ˜ ๋™์  API ๊ตฌ์กฐ๋กœ ๋ฆฌํŒฉํ† ๋ง

๐Ÿค– AI & ๋ฐ์ดํ„ฐ

  • ์ธ์žฌ ์ถ”์ฒœ ์‹œ์Šคํ…œ: Bi-Encoder์™€ Cross-Encoder๋ฅผ ๊ฒฐํ•ฉํ•œ ๋‹ค๋‹จ๊ณ„ ์ธ์žฌ ์ถ”์ฒœ ํŒŒ์ดํ”„๋ผ์ธ ๊ตฌ์ถ•
  • LLM ์—ฐ๋™: ์ž์—ฐ์–ด ์ธ์žฌ ๊ฒ€์ƒ‰, ์ด๋ ฅ์„œ ์š”์•ฝ ๋ฐ ์Šคํ‚ฌ์…‹ ์ž๋™ ๋“ฑ๊ธ‰ ํ‰๊ฐ€
  • ๋ฐ์ดํ„ฐ ์ฆ๊ฐ•: LangGraph ํ™œ์šฉ ๊ฒŒ์ž„ ํ”„๋กœ์ ํŠธ ๋ฐ์ดํ„ฐ ๋งฅ๋ฝ ์ •๋ณด ํ™•์žฅ ๋ฐ 30๊ฐœ ์ด์ƒ ์ปฌ๋Ÿผ ์ž๋™ ์ฆ๊ฐ•
  • ์‹œ์Šคํ…œ ์„ค๊ณ„: ์ธ์žฌ-๊ฐœ๋ฐœ ์กฐ์ง-๊ฒŒ์ž„ ํ”„๋กœ์ ํŠธ ๊ฐ„ ๋ณต์žกํ•œ ๊ตฌ์กฐ๋ฅผ ์œ ์—ฐํ•˜๊ฒŒ ๋งคํ•‘ํ•˜๋Š” TRM ๋ฐ์ดํ„ฐ ๋ชจ๋ธ ์„ค๊ณ„

Genexine

์˜์•ฝํ’ˆ ๋ถ„์„ํŒ€ / ์—ฐ๊ตฌ์› | 2016.10 โ€” 2021.06 (4๋…„ 7๊ฐœ์›”)

  • ์›๋ฃŒ ์˜์•ฝํ’ˆ ๋ฐ ์•ˆ์ •์„ฑ ์‹œํ—˜ ์˜์•ฝํ’ˆ ํ’ˆ์งˆ ๋ถ„์„ ๋ฐ ๋ถ„์„๋ฒ• ๊ฐœ๋ฐœ
  • ๋ถ„์„ ๋ฐ์ดํ„ฐ๋ฅผ ํ†ตํ•œ ์˜์•ฝํ’ˆ ์•ˆ์ •์„ฑ ๊ฒฐ๊ณผ ์˜ˆ์ธก ์—…๋ฌด ์ง„ํ–‰

๐Ÿš€ Projects

  • ๊ธฐ๊ฐ„: 2024.07 โ€” 2024.08 (2๊ฐœ์›”)
  • ๊ธฐ์ˆ  ์Šคํƒ: Python, FastAPI, MySQL, Docker
  • ์„ค๋ช…: ๊ณ ๋ น์ธต์˜ ๋””์ง€ํ„ธ ์†Œ์™ธ ๋ฌธ์ œ๋ฅผ ํ•ด๊ฒฐํ•˜๊ธฐ ์œ„ํ•ด SKT ์—์ด๋‹ท ํ”Œ๋žซํผ์„ ํ™œ์šฉํ•œ ์Œ์„ฑ ์ธ์‹ ๊ธฐ๋ฐ˜ ๋งž์ถคํ˜• ์„œ๋น„์Šค ๋ฐฑ์—”๋“œ ๊ฐœ๋ฐœ
  • ์ฃผ์š” ์—ญํ• :
    • ChatGPT API ๊ธฐ๋ฐ˜ ๋ฐœํ™” ํ…์ŠคํŠธ ์˜๋„ ์ถ”์ถœ ๋ฐ ์„œ๋น„์Šค ์—ฐ๊ฒฐ ๊ธฐ๋Šฅ ๊ฐœ๋ฐœ
    • TMAP API ํ™œ์šฉ ์‚ฌ์šฉ์ž ์œ„์น˜ ๊ธฐ๋ฐ˜ ์ •๋ณด ์ถ”์ฒœ ๋ฐ ์ฝœํƒ์‹œ ์—ฐ๊ฒฐ ๊ธฐ๋Šฅ ๊ฐœ๋ฐœ
    • Database ์„ค๊ณ„ ๋ฐ ๊ตฌ์ถ•, Docker Compose ๊ธฐ๋ฐ˜ ์„œ๋ฒ„ ๋ฐฐํฌ
  • ์„ฑ๊ณผ: ๋น„๋™๊ธฐ ์ฒ˜๋ฆฌ ๋„์ž…์œผ๋กœ API ์‘๋‹ต ์†๋„ 3์ดˆ โ†’ 1์ดˆ ๋ฏธ๋งŒ์œผ๋กœ ๋‹จ์ถ•

  • ๊ธฐ๊ฐ„: 2023.09 โ€” 2023.11 (2๊ฐœ์›”)
  • ๊ธฐ์ˆ  ์Šคํƒ: Python, Deep Learning, Git
  • ์„ค๋ช…: ์˜คํ์ˆ˜ ์ฒ˜๋ฆฌ ์„ค๋น„์— AIoT ์†”๋ฃจ์…˜์„ ์ ์šฉํ•˜์—ฌ ์—๋„ˆ์ง€ ํšจ์œจ์„ ์ตœ์ ํ™”ํ•˜๋Š” ์‹œ์Šคํ…œ ๊ตฌํ˜„
  • ์ฃผ์š” ์—ญํ• :
    • Advantech WISE-PaaS SDK๋ฅผ ํ™œ์šฉํ•œ NoSQL ๊ธฐ๋ฐ˜ ์„ผ์„œ ๋ฐ์ดํ„ฐ ์ˆ˜์ง‘
    • ์‹ค์‹œ๊ฐ„ ์—๋„ˆ์ง€ ์‚ฌ์šฉ๋Ÿ‰, ์ž…๋ ฅ ๋Œ€๋น„ ์ถœ๋ ฅ ์œ ๋Ÿ‰ ์‹œ๊ฐํ™” ๋Œ€์‹œ๋ณด๋“œ ๊ฐœ๋ฐœ
    • LSTM ๋”ฅ๋Ÿฌ๋‹ ์•Œ๊ณ ๋ฆฌ์ฆ˜์„ ํ†ตํ•œ ์ž…๋ ฅ ์œ ๋Ÿ‰ ๊ธฐ๋ฐ˜ ์ถœ๋ ฅ๊ฐ’ ์กฐ์ ˆ
  • ์„ฑ๊ณผ: LSTM ์•Œ๊ณ ๋ฆฌ์ฆ˜ + ์‹ฌ์•ผ ์‹œ๊ฐ„๋Œ€ ์ „๋ ฅ ์ตœ์ ํ™”๋ฅผ ํ†ตํ•ด ์—๋„ˆ์ง€ ๋น„์šฉ ์•ฝ 20% ์ ˆ๊ฐ, ์ตœ์šฐ์ˆ˜์ƒ ์ˆ˜์ƒ

3. ๊ฐ€์ƒํ™˜๊ฒฝ ๊ธฐ๋ฐ˜ ์ž์œจ์ฃผํ–‰ ๊ฒฝ์ง„๋Œ€ํšŒ (ํŠน๋ณ„์ƒ)

  • ๊ธฐ๊ฐ„: 2023.12 โ€” 2024.02 (3๊ฐœ์›”)
  • ๊ธฐ์ˆ  ์Šคํƒ: Python, C++, ROS, Ubuntu, Git
  • ์ฃผ์š” ์—ญํ• :
    • LIDAR ์„ผ์„œ์™€ ICP ์•Œ๊ณ ๋ฆฌ์ฆ˜์„ ํ™œ์šฉํ•œ SLAM ๋ฐ ๋‚ด๋น„๊ฒŒ์ด์…˜ ๊ตฌํ˜„
    • OpenCV ๊ธฐ๋ฐ˜ ์นด๋ฉ”๋ผ ๋ฐ์ดํ„ฐ ์ „์ฒ˜๋ฆฌ ํ›„ ๊ทœ์น™ ๊ธฐ๋ฐ˜ ์ž์œจ์ฃผํ–‰ ์‹œ๋ฎฌ๋ ˆ์ดํ„ฐ ๊ฐœ๋ฐœ

4. ์ธํ•˜ ์ธ๊ณต์ง€๋Šฅ ์ฑŒ๋ฆฐ์ง€ โ€” Multimodal ์ถ”์ฒœ ์‹œ์Šคํ…œ (์ตœ์šฐ์ˆ˜์ƒ)

  • ๊ธฐ๊ฐ„: 2023.07 โ€” 2023.08 (2๊ฐœ์›”)
  • ๊ธฐ์ˆ  ์Šคํƒ: Python, Deep Learning
  • ์ฃผ์š” ์—ญํ• :
    • ํ‰์ , ํ…์ŠคํŠธ, ์ด๋ฏธ์ง€ ๋ฐ์ดํ„ฐ๋ฅผ ๊ฐ๊ฐ cosine similarity๋กœ ๋งคํŠธ๋ฆญ์Šค ๊ตฌํ˜„
    • Soft voting ๋ฐฉ์‹์œผ๋กœ ๊ฒฐํ•ฉํ•œ ๋ฉ€ํ‹ฐ๋ชจ๋‹ฌ ์ถ”์ฒœ ์‹œ์Šคํ…œ ๊ฐœ๋ฐœ

๐Ÿ… Honors and Awards

์—ฐ๋„ ๋Œ€ํšŒ๋ช… ์ˆ˜์ƒ
2023.11 2023 Advantech AIoT Innoworks Project ์ตœ์šฐ์ˆ˜์ƒ
2023.08 ์ธํ•˜ ์ธ๊ณต์ง€๋Šฅ ์ฑŒ๋ฆฐ์ง€ ์ตœ์šฐ์ˆ˜์ƒ
2024.02 ๊ฐ€์ƒํ™˜๊ฒฝ ๊ธฐ๋ฐ˜ ์ž์œจ์ฃผํ–‰ ๊ฒฝ์ง„๋Œ€ํšŒ ํŠน๋ณ„์ƒ

๐Ÿ“œ Certifications

์ทจ๋“์ผ ์ž๊ฒฉ์ฆ
2025.12 ์ •๋ณด์ฒ˜๋ฆฌ๊ธฐ์‚ฌ
2025.06 SQL ๊ฐœ๋ฐœ์ž (SQLD)
2025.06 ๋ฐ์ดํ„ฐ๋ถ„์„ ์ค€์ „๋ฌธ๊ฐ€ (ADsP)

๐Ÿ“š Education & Training

SKT FLY AI ํ”„๋กœ๊ทธ๋žจ

  • ๊ธฐ๊ฐ„: 2024.06 โ€” 2024.08 (3๊ฐœ์›”)
  • Python ๊ธฐ๋ฐ˜ ๋น…๋ฐ์ดํ„ฐ ๋ถ„์„ยท์‹œ๊ฐํ™”, AI ๋ชจ๋ธ ๊ฐœ๋ฐœ(Decision Trees, DNN, CNN, RNN) ์‹ค์Šต
  • Docker, Kubernetes, Jenkins, GitHub Actions, Azure ๋“ฑ ํด๋ผ์šฐ๋“œ ์ธํ”„๋ผ ๋ฐ ์ž๋™ํ™” ๋„๊ตฌ ์‹ค์Šต

์ธํ•˜๋Œ€ํ•™๊ต

  • ์†Œํ”„ํŠธ์›จ์–ด์œตํ•ฉ๊ณตํ•™๊ณผ (2021.03 โ€” 2024.08) | GPA 4.14 / 4.5

๐Ÿ“ž Contact

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    study_python

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    Forked from SKT-FLY/bbd-be

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  4. Algorithm Algorithm Public

    Algorithm ๋ฌธ์ œํ’€์ด

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    Jupyter Notebook

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