Byeonghyeon Kim

RESUME
AI Engineer · LLM Systems
On-Prem LLM Infra · Access-Controlled Memory · Security-grounded
Gyeonggi-do, South Korea | bk@bkan.dev | (+82) 10-4676-5884 | GitHub | Portfolio | Threads
Summary
Security-grounded AI engineer building cloud-independent, on-prem LLM infrastructure and access-controlled memory systems.
3 years in SOC/CERT (CMT EYES) → FastCampus AI Bootcamp (14th)enterprise AI freelancer → solopreneur.
Delivered 22+ projects (multi-agent · RAG · AI memory) with 2+ shipped MVPs. Seeking a full-time AI/LLM engineering role.
Core Skills
LLM Multi-Agent Orchestration · Agentic Workflows · RAG · MCP Tool Use · Eval-Driven Dev AI / ML PyTorch · Transformers · QLoRA/LoRA · LightGBM · Optuna · Local LLM Fine-tuning · Ollama · Qwen Web Next.js · React · TypeScript · FastAPI · Tailwind CSS · Drizzle ORM · BetterAuth · LangChain · Vercel Data / DB PostgreSQL · pgvector · Supabase · Neon · SQLite FTS5 · MySQL · Schema Design / Data Modeling Infra Docker · GitHub Actions · CI/CD · Bash Security FortiGate/UTM · FortiSIEM · WAF/IPS · Wireshark · SOC / CERT Language Python · TypeScript · SQL · Bash
Experience
Enterprise AI Systems - Freelance AI Engineer / Technical Lead 2026
  • Built an always-on, cloud-free on-prem multi-agent LLM cluster on 15 Mac Studios over Tailscale, auto-recovering on reboot
  • Designed a normalized 27-table call-center/customer schema - passed 2 external reviews and adversarial code review
  • Automated work logs and daily reports on access-isolated Hindsight memory plus a Graphify knowledge graph
AI Engineer · LLM Systems / Solopreneur 2025 - Present
  • Shipped 2+ MVPs solo: OurFolio (evidence portfolios), ASHD v2 (OCR+LLM warranty mgmt, eval gates), BluePy 2.0 (open-source security scanner)
  • Operated BK-HQ: 15 AI agents, 4 teams, 31 skills, 19 automation hooks, and 5 crews
  • Open-sourced (MIT) Hindsight-Crew · memory-bench: agent-memory tenant isolation proven by 9 executable gates - 4 adversarial bypasses rejected, fully offline, measured
Franchise Business Owner/Operator 2021 - 2025
  • Applied POS data to demand forecasting, inventory optimization, and customer analysis - the move into AI/ML
Security Monitoring Engineer, CMT EYES 2018.02 - 2021.02
  • Monitored 20+ Fortinet WAF/IPS/UTM/SIEM appliances for 50+ clients, 1,000+ events monthly - false/true-positive accuracy +50%
  • Ran the full CERT lifecycle (detect → analyze → block → policy → report) - automation cut handling 30 min → 5 min
Key Projects & Competitions
▸ Project details: Career Portfolio · portfolio.bkan.dev
Products · OurFolio (Next.js·Neon) · ASHD v2 (Supabase·OCR) · BluePy 2.0 (scanner) · Subari·Wukong (concepts)
AI Infra · BK-HQ (15 agents·4 teams) · 5 Smart Skill Chains · SNS automation · Agent Dashboard
Competitions · Toss Ads CTR Top 10% · QA IR MAP/MRR +107% · Doc image F1 +470% · Dialogue ROUGE +30% · Real-estate RMSE -58%
AI/ML · Marketing AI multi-agent · Movie-rating MLOps (E2E CI/CD) · LLM RAG training content
Education
FastCampus AI Bootcamp 14th cohort (completed) 2025.06 - 2026.01
B.Eng. in Information Security Academic Credit Bank, Korea 2018
Certifications
Information Processing Industrial Engineer · Network Administrator L2 (2017) · Information Equipment Operation · Smart Home Manager (2023)