Work that shipped.
Each one made it to production. Real users, real numbers, real handovers.
Migrating a RAG copilot serving 5,000 users
Pitched and led a LangChain → LangGraph migration. Designed an observability adapter that broke a Literal AI vendor lock-in before it bit. Test coverage 40 → 80%.
Shipping AI features inside a SaaS platform
Owned an AI meeting bot and an AI weekly planner end-to-end inside a project-management platform with millions of users. Led a structured-outputs migration across legacy AI features.
Building an AI team from zero
Hired the developers, picked the stack, planned the architecture, and trained the team to operate independently. Walked out on schedule.
Automating ad campaigns across 4 platforms
Solo-built an automation platform that reduced campaign creation from hours to instant across Meta, Google Ads, TikTok, and Airtable.
What clients
actually say.
Maciej is the rare consultant who writes the code. He came in for a RAG migration and ended up redesigning our observability — which turned out to be the actual problem. On-call is no longer reading tea leaves.
— Senior Engineering Lead, Roche DiagnosticsHave a similar problem?
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