Applied LLM Engineer · Research + SystemsNethermind · 2026

LLM Systems in Production: research, evaluation, and reliability

Khen Bo KanAI Engineer, Nethermind · MSc, Chungnam Nat’l Univ.

AbstractApplied LLM engineer building production LLM and agentic systems. My work centers on autonomous AI agent pipelines, RAG retrieval, and agent memory across proprietary and open-source models — with a focus on reliability, cost, and latency in production. In production this powers AuditAgent, an AI security auditor trusted by teams like Uniswap, Lido, and UBS; in research it produced a first-author paper in IEEE Network Magazine on fine-tuning LLMs for network analysis.

Overview

At a glance

focusresearch · build · evaluate · monitor
domainsautonomous agents · RAG · agent memory · fine-tuning
stackPython · PyTorch · FastAPI · Hugging Face
servingself-hosted open models · vLLM · TGI
providersOpenAI · Anthropic · Google
shippedAuditAgent · BGP-LLaMA · Mobile-LLaMA (IEEE)
Results

Selected outcomes

Measured on shipped systems — not benchmarks run in isolation.

40%recall of professional audit findingsAuditAgent
67%score on the EVMBench benchmarkAuditAgent
−27%prompt size via agent memory + unified RAGAuditAgent
−96%manual network-analysis timeBGP-LLaMA
Table 1 — Selected outcomes from production and research systems.
Systems trusted byUniswap · Lido · CMTA · UBS
Experience

Where I've worked

AI Engineer — AuditAgent

Built an autonomous, multi-stage LLM agent pipeline for smart-contract security: detection, validation, and persistent agent memory over a unified RAG index. Also built the in-house multi-provider LLM router (OpenAI · Anthropic · Google) with streaming, retries, and cost tracking.

LLM AgentsRAGAgent MemoryEvaluationMonitoringFastAPI

AI Researcher — LLMs for Network Analysis

Built BGP-LLaMA, cutting manual network-analysis time by 96% with a fine-tuned LLaMA and few-shot prompted GPT. First-author publication in IEEE Network Magazine (Mobile-LLaMA), including a purpose-built instruction-tuning dataset.

Fine-tuningPyTorchHugging FaceIEEEFastAPI
Work

Selected work

AuditAgent ↗︎

AI security auditor for smart contracts. A multi-agent pipeline reaching 40% recall of professional findings and 67% on EVMBench, scanning up to 12k LoC per run with resumable checkpoints.

AgentsRAGSolidity

Opencode Agent Pod ↗︎

Turns opencode — a CLI coding agent — into a programmable, fully autonomous agent behind an HTTP/SSE API; each request runs a complete tool loop in an isolated sandbox. General-purpose agent capability any project can drop in, well beyond coding.

Agent infraSandboxMCP

AI Customs ↗︎

Self-hosted LLM that flags discrepancies in customs declarations — Gemma-3-27B on local GPUs (vLLM/TGI) with Docling + OCR parsing and JSON-schema-constrained output, so sensitive trade data never leaves the operator's environment.

Self-hostedvLLM / TGIDocling

BGP-LLaMA ↗︎

Natural-language BGP anomaly detection: a fine-tuned LLaMA (served with vLLM) and GPT behind a React/FastAPI app that cut manual network-analysis time by 96%.

Fine-tuningLLaMAvLLM

Mobile-LLaMA ↗︎

Instruction fine-tuning of open-source LLMs for 5G network analysis. First-author paper in IEEE Network Magazine, with a purpose-built training dataset (+90 pts accuracy).

ResearchInstruction TuningEvaluation
Correspondence

Contact me

Always happy to compare notes on agents, retrieval, and evaluation.