AiAdvisors
//Case studies

Case studies: AI implementations and digital transformation.

I describe every implementation the way it really went: the problem, the solution and the measurable results.

This is the full list of projects I have run — from automating a single process to digitising an entire operational area of a company. Each case study sets out exactly what the problem was, what I built, and what changed after deployment.

It covers both classic digital transformation — paper documents and spreadsheets replaced by a working system — and projects where AI does something that previously could not be done at all: analysing hundreds of thousands of documents, assistants grounded in company knowledge, or models fine-tuned for one specific task.

There are no hypothetical examples here and no numbers I cannot defend. Some projects are anonymised at the client's request — the description stays entirely accurate; only the name changes.

Filter by service
Multi-marketplace e-commerce
Anonymized — ongoing engagement

Over 200 workflows on one platform — marketplace automation across 6 countries, agentic product research, custom microservices and an internal automation team trained to work independently.

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Advisory firm
Anonymized — ongoing engagement

A self-updating base of more than half a million documents, hybrid search, a research agent and analysis drafts. From ~12 hours of work to ~2 minutes.

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CFOpro
CFO as a Service — content engine and operating system

For a CFO-as-a-Service firm: an agentic content engine publishing one article a day, and a Coda-based finance operating system — a counterparty registry, an income-and-expense ledger fed straight from invoices, and a hub that shows who needs paying and how much.

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n8n-mcp
Own project — MCP infrastructure

The tool that lets AI agents build working n8n automations — 22,800+ GitHub stars, 143,000+ users and 1.9M+ workflows built, including at Deutsche Telekom, PayPal, Mercado Libre, MIT and NYU. Built entirely agentically.

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Energy House
Invoice automation — multi-inbox

Cost invoices arriving across seven team inboxes are found, read, de-duplicated and filed automatically — into a Google Drive archive and a Google Sheets register that's ready to hand to the accountant. Twelve connected n8n automations.

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World Bank — Romania
World Bank — Romania's energy sector

Two World Bank workstreams in Romania's energy sector — ~100,000 heterogeneous energy certificates (photos, OCR PDFs, spreadsheets) consolidated into one Postgres database with heavy LLM extraction, and the 2021 census turned into accurate heating maps across all 42 counties. Delivered ahead of deadline.

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Real-estate investor (USA)
Anonymized — investor deal flow

AI reads broker offerings from emails and flyers (vision), fuzzy-matches them against a property database, enriches them with neighbourhood data and generates Letters of Intent in one click.

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Financial due-diligence consultancy
Anonymized — Nordic DD consultancy

A due-diligence consultancy's interviews turned into structured findings automatically — AI answers every agenda question, validates each answer against the transcript, and catches the unprompted disclosures that matter in a deal. Runs entirely on the firm's own in-country cloud.

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Mental-health app for therapists
Anonymized — mobile app backend

A REST backend for a therapists' mobile app — 40+ workflows, 30+ endpoints, RAG per therapy method, a therapeutic agent behind a routing layer, audio/image/PDF input. Production with no critical bugs.

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Saudi Ministry of Industry
Public sector — Saudi Vision 2030

~60 AI use cases assessed on impact × feasibility for a Saudi Vision 2030 platform — distilled to 7 prioritised initiatives and a phased roadmap, with a working PoC of an AI photo-inspection assistant built to run inside the Kingdom.

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AdBridge
Paid social — AI creative & copy

From a file in a folder to a live ad — AI analysis of images and videos, French copy in three positioned variants, standardised naming and automated upload to Meta Ads.

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Custom-trained n8n model
Own project — custom-trained models

Custom-trained models that build n8n workflows from a plain-language request — frontier-level quality, self-hosted, about a cent per workflow.

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World Bank — Clean Air Programme
World Bank — beneficiary NFOŚiGW

IT and AI architecture advisory for one of Europe's largest thermal-modernisation programmes — bottleneck diagnosis, AI use cases, GDPR and AI Act compliance, implementation roadmap.

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Aurora — 3D in the browser
Own project — R&D

A research project in a field I knew nothing about — 3D modelling, from zero to an interactive browser app in three days. A test of whether the method holds up outside my own expertise.

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//Contact

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or write: romuald@aiadvisors.pl · +48 695 263 884