AI engineer · LLM agents · ML systems · full-stack · Missouri / Remote

Antoni Jagodka — I build AI agents &
ML systems, end to end.

I design and ship AI agents, LLM tooling, and full-stack products end to end — AI-native, with Claude Code as my core build engine. From autonomous agents and MCP servers to trained ML models and production systems live on the web.

Email tjagodka@gmail.com GitHub github.com/DrVelvetFog Site tonyjagodka.com Location Missouri · Remote

Selected work

OpenMed

Open-source contributor · medical NLP · 4.6k★

Merged contributions to a local-first medical-NLP toolkit with models on the Hugging Face Hub: release signing and supply-chain evidence for the publish pipeline (Sigstore-signed wheels + SLSA provenance attached to each release, verifiable offline), an interactive Gradio de-identification demo, and an Apple MLX memory-mapped weight-loading toggle.

Python · Gradio · Apple MLX · Hugging Face Hub · supply-chain security↗ maziyarpanahi/openmed

Verified Agent

Autonomous AI agent

An autonomous agent that reasons with a local LLM, owns persistent memory, and acts under a verifiable identity and payments — built to replace cloud dependencies with self-hosted, auditable substrate.

local LLM · agent design · tool use · TypeScript↗ DrVelvetFog/x402-verified-agent

ML engineering portfolio

Recsys · neural nets · fine-tuning

Hands-on ML built from the ground up: a MovieLens recommender, logistic regression and neural nets implemented from scratch, and LoRA fine-tuning on Apple Silicon (MLX) — each measured with honest held-out evaluation.

Python · sklearn · MLX · LoRA · model evaluation↗ DrVelvetFog/movielens-recsys

Upstream contributions

8 merged PRs · 5 organisations

Merged into huggingface.js: the public language() lookup used code in TABLE, so prototype-inherited names returned a function out of a Language | null signature — and the existing test passed only because its input wasn't on Object.prototype. Fixed with a regression test that fails without it. A second merge fixed a worker-pool lifecycle bug in @huggingface/hub. Also a recovery_hint() error-taxonomy layer (+220 lines, Rust) in Tessera.

TypeScript · Rust · reading unfamiliar codebases↗ huggingface.js #2320

x402 EV Charging Agent

Autonomous agent · mainnet-proven

An EV that autonomously pays for its own charge: authorize a ceiling, meter the usage, settle the actual amount — a complete autonomous-agent payment loop, proven in production with an independently-verifiable receipt.

agent loop · x402 · Sui · Solana · OCPI↗ DrVelvetFog/x402-charging-agent

Proof of Real (PoR)

Full-stack product · live · SDK

A privacy-first proof-of-personhood product live on mainnet: passkey + zkLogin onboarding, an on-chain attestation apps verify in one call, and a published npm SDK — shipped end to end, no accounts and no PII stored.

TypeScript SDK · zkLogin · WebAuthn · live mainnet↗ por-proof-of-real.netlify.app

Stack & skills

LanguagesTypeScript · Python · Rust · SQL · Sui Move · Solidity
AI & MLLLM agents · MCP servers · multi-agent / subagents · tool calling · RAG · local LLMs (Ollama) · LoRA fine-tuning (MLX) · recsys & neural nets · model evaluation · AI-native dev (Claude Code)
Full-stack & webReact · TypeScript · REST APIs · Tauri v2 desktop · PWAs · data-dense dashboards · SQLite / Postgres
Infra & systemsNode services · Sui RPC / indexers · Netlify / Render · production on-chain systems · x402 / agent payments
Securitysmart-contract security review · source-level DeFi audits (NAVI · Suilend · STEAMM) · responsible disclosure
Open sourcemerged into OpenMed (medical-NLP) · Tessera (local-first AI IDE, Rust) · the x402 payment standard · Nodle L2 rollup

Background

Solo builder shipping AI agents, ML systems, and full-stack products end to end, AI-native. Author of an adopted x402 payment-standard extension and an active open-source contributor. Contributes to Nodle's L2 rollup — including a Bridgehub migration — and conducts independent smart-contract security research — source-level audits of NAVI, Suilend, and STEAMM, with a responsible disclosure to Suilend. I move fast, ship complete systems, and care that they work in production.