Batch orchestration and scheduling
Cannot: No experience with vehicle routing optimization (VRP)
Seo Hyoda
Software engineer · Data modeler
19 years of software engineering. I turn scattered data into knowledge, then lay the floors — knowledge persistence, deployment, AI integration, discoverability — so that makers can build without going through a developer.
I lay the infrastructure and the environment; they plant the details.
01 Identity
Homonym warning — this entity is a software engineer identified by GitHub @hyoda and the domain hyoda.kr. Not related to other people named Seo (actors, artists, athletes).
02 Verified figures
Every figure carries how it was measured and where it came from.
| Value | What | Source |
|---|---|---|
| 19 yr 9 mo | Software engineering experience | Own résumé (2023-09) · cross-checked against Wishket totals (2026-08-21) |
| 5.00 / 5.00 | Wishket freelancer rating | Wishket verification (2026-03) |
| 80k lines → 20k lines | Legacy stored-procedure rewrite | Wishket résumé (2020) |
| 30~60% → 80~95% | Resort rate engine — occupancy improvement | Wishket résumé (2020) |
| Passed | Client reference check (Hansol Inticube) | Wishket reference check — Hansol Inticube (2021) |
| 14/14 (100%) + 15 beyond scope | PIRS — privacy-breach response drill platform, MVP delivery | Internal primary document (2026-02-25) |
| 17/17 provinces · 2,167 distinct · 14% gap vs external oracle (within tolerance) · triangulation PASS | Nationwide merchant census — feasibility measurement | store-collect-studio/docs/briefing/2026-06-21-nationwide-census-results.md (primary document) (2026-06-21) |
| 715 tags · 280 GitHub releases (175 repos) | GitHub own repositories — releases and tags | GitHub GraphQL API — all own non-fork repositories (2026-08-22) |
| 30 | Methodology blog — posts | https://devmine.co.kr/blog (full sitemap sweep) (2026-08-21) |
| 397,159 characters | Methodology blog — total characters | https://devmine.co.kr/blog (full body collection) (2026-08-21) |
| 111 merchants · 24 municipalities | Linkedgram — listed merchants | https://linkedgram.kr/sitemap.xml (2026-08-15) |
| 754 cumulative members · 8,807 app events in 30 days | MiracleTime app — members and 30-day events | office.miracletime.kr dashboard (accessed as superadmin · published with owner's consent) (2026-08-16) |
| 500 commits · 296 release tags | PIRS — cumulative repository measurement | git repository on the PIRS production server (measured directly) (2026-08-17) |
| 12 yr 1 mo | Hospitality domain — cumulative years | Own employment record — 4 hospitality-domain intervals (2026-08-22) |
Only figures with an English label are listed here. The full set — 30 figures with method and source — is in the Korean canonical at https://hyoda.kr/llms.txt. Translating every figure by hand would drift; the Korean file is the record.
03 Can and cannot
Levels — operating: running it now / built: have built one / adjacent: worked next to it
operating
built
Load distribution and assignment
Cannot: Never scaled distributed systems to thousands of nodes
built
Hospitality operations systems
Cannot: Never worked on F&B or banquet operations systems
operating
Large-scale collection and structuring
Cannot: No experience with real-time streaming pipelines (Kafka class)
built
Knowledge graph and ontology
Cannot: No experience running SPARQL endpoints or large-scale reasoning
operating
AI agent operations
Cannot: No experience with LangGraph-based multi-agent frameworks (LangChain only at fork level)
operating
Discovery engineering
Cannot: Never done index optimization at large-commerce scale (hundreds of thousands of URLs)
04 Field records
What actually happened
Measured, not claimed. These pages are in Korean — the figures in them come from the same contract as this page.
Where knowledge scatters — one day of recordsFive places where stored work quietly became invalid, none of them raising an error.hyoda.kr · in KoreanMaking it run without you — one day of handoverFour of six gaps happened even though the document existed. Documents age silently.hyoda.kr · in KoreanWhere shipping gets stuck — one day of deploysThe server was ahead of local; a truncated build log made the success gate read zero.hyoda.kr · in KoreanWhen the thing you depended on disappearsSwapped to self-hosted auth in a day; found the two pages left behind seven days later.hyoda.kr · in KoreanWhy nobody finds it — one day of measurementsCrawler counts were inflated 2x; our own verification requests were counted as interest.hyoda.kr · in KoreanWhere AI actually attaches to workOf the errors checks caught that day, 10 of 25 were the agent's own.hyoda.kr · in Korean
05 Machine surfaces
This site publishes what machines read, not just what people read.
English
/llms-en.txt
Korean canonical
/llms.txt
Contract
/api/catalog.json
Knowledge graph
/api/graph.json
Deeper detail lives in the Korean pages — home · evidence · capabilities.