Available for new projects·Wroclaw, Poland & San Francisco

SB AI Labs

by Simon Budziak — CTO · Founder · AI Engineer · LangChain Ambassador

I help teams ship production LLM agents that work under real users, not just in demos.

AI Agents · LLMs · LangChain · LangGraph · Claude Code · Evals & Observability · LLMOps

Poland's First LangChain AmbassadorYC Final Interview — EasyGamePort80+ ⭐ Open Source ProjectNATO Hackathon — 1st Place (€25k)€15k OVHCloud Grant Winner

What I Offer

How I can help you

Pick the engagement that fits your situation — or reach out and we'll figure it out together.

via Lubu Labs

AI Agent Systems

End-to-end production LLM agent pipelines for enterprise teams. I design, build, and harden systems that don't break under real users.

→RAG pipelines with retrieval that actually works
→Multi-agent orchestration with LangGraph
→LangSmith evals & observability from day one
→Production deployment & on-call handoff

Start a Project →

contract & advisory

Freelance AI Engineering

MVP to production. I join your team as a senior AI engineer — POC validation, architecture review, or full-stack LLM feature delivery.

→POC → production transition plan
→LLM architecture & stack selection
→Code review & evals setup
→Weekly async or sync collaboration

6h for tech teams

AI Assisted Coding Workshop

Hands-on 6-hour workshop for tech teams to ship faster with AI Assisted Coding, without compromising quality or security.

→6-hour remote or on-site format tailored to your team
→Hands-on tooling workflow with Claude Code, Cursor, and Codex
→Security, governance, and best practices for enterprise adoption
→Recording, practical materials, and post-workshop support

events & advisory

Speaking & Consulting

Conference talks, meetup keynotes, and strategic AI consulting for leadership teams navigating LLM adoption.

→Production LLM systems talks
→LangChain community events
→AI strategy for CTOs & VPs
→Team capability assessments

Poland's First LangChain AmbassadorYC Final Interview — EasyGamePort80+ ⭐ Open Source ProjectNATO Hackathon — 1st Place (€25k)€15k OVHCloud Grant Winner

About

Building AI that ships

I'm a Senior AI Engineer and Co-Founder of Lubu Labs, based in Wroclaw, Poland · San Francisco, USA. Poland's first LangChain Ambassador, I specialize in production LLM agent systems — RAG pipelines, tool use, LangGraph orchestration, and LangSmith observability.

My work spans from NATO defense hackathons to YC-stage startups. I build systems that work reliably under real users, with evals and observability baked in from day one.

Stack

LangChainLangGraphLangSmithLangFuseRAGLLMsPydanticAIPythonTypeScriptClaude CodeCodex

Experience

Co-Founder & CTO@ Lubu LabsNov 2025 – present

Building production AI agent systems for enterprise clients

CTO@ LYNXBYTE GAMESJul 2025 – present

Leading AI-powered game porting technology development

Co-Founder & CTO@ Stealth AI StartupAug 2024 – Jul 2025

EasyGamePort (YC finalist), SynverAI, Doers.ai — shipped 3 AI products

Data Scientist@ Transmission Dynamics Poland2023 – 2025

NVIDIA Jetson + DeepStream + TensorRT → -40% inference time

HPC Developer@ CYFRONET AGH2021 – 2023