AI Engineer and Automation Specialist
Four years building AI, data and process automation for banking, public sector and regulated infrastructure in Madrid.
Where this work has run
Selected work
Proof of concept for a private banking institution
An AI assistant that analyses and manages long-term investment fund portfolios: quantitative fund analysis, risk and return assessment with predictive models, and selection and rebalancing algorithms.
Bitcoin SV Association
An MCP server that lets AI agents hold their own wallets and operate autonomously on-chain, plus open source libraries that automate full blockchain operations for other teams.
Sanwa Energía
End-to-end automation of the registration and legalisation of aerothermal and self-consumption energy installations, integrated with the public bodies involved in the process.
DGT, Metro de Madrid and Madrid City Council, at Accenture
Three years leading AI applied to data analysis for major public sector clients: predictive models, generative AI embedded in client processes, and RAG systems with semantic retrieval.
Products I built and run myself. The first three are live right now.
Own product, in production
Permanent QR codes for restaurants. The code engraved on the physical piece never changes; the destination behind it is edited in two taps.
50-operation REST contract, 15 data models · MCP server exposing 14 tools
Own product, ready for pilot
Shared-amenity booking for residential communities. Residents book the court, the gym or the social room from their phone; the manager and the concierge administer it from the same place.
194 unit and integration tests · End-to-end suite run against a real Postgres
Maintenance operations, deployed
A light self-hosted maintenance management system covering workshop, warehouse, shift and work orders, with an ETL that migrated the existing spreadsheet inventory into a real database.
641 inventory rows migrated out of spreadsheets · Barcode scanning and biometric sign-in on the floor
Own product, in production
Finance and invoicing for a mixed tax situation: employee and self-employed at once. The business side and the personal side live together without mixing, and logging an expense costs one photo.
Installable PWA with passkey sign-in · Receipt capture backed by a vision model
Visual flight planning
A web tool for visual flight planning: route mapping, waypoints, airspace warnings and real-time aviation calculations.
Luxury real estate, RE/MAX group
Website for a luxury real estate agency, built in Next.js with lead capture automated straight into their CRM.
Winery, e-commerce and CRM
Online shop and CRM for a winery, covering the wine club and its members.
Built and finished on my own servers. They are not commercial products and are not hosted right now, so there is nothing to click through to.
Meeting-to-action funnel for a small team. Paste the notes, get structured actions, see the dependency graph and who owns what.
Next.js 15 · Prisma · Claude API · MCP · 84 tests
Retrieval over legal codes, chunked and indexed, with a conversational mode that decides on its own whether a question needs retrieval or a plain answer.
RAG · tRPC · Prisma · pdf-parse
Research synthesis across a set of uploaded documents, producing one report rather than answers one file at a time. Subscriptions and usage quotas built in.
Next.js · Document chunking · Cognee · Postgres
Turns a set of documents into exams: chunks the source, generates questions from it, and assembles tests with the material behind each answer.
Next.js · BullMQ · Prisma · Postgres
Instagram DM automation feeding a CRM pipeline: keyword triggers on incoming messages, leads through stages, and a consent log so the outreach stays defensible.
Instagram API · Next.js · Prisma · Consent logging
White-label conversational booking. A business plugs in its services and availability; customers book over WhatsApp or SMS by talking to it.
Twilio · BullMQ · Redis · Prisma
Bizum-style peer-to-peer payments: send and receive in euros with a phone number as the payment ID, settled on-chain underneath.
BSV SDK · tRPC · Ramp Network · Sentry
Generation pipeline that takes reference images and trending formats and produces video from them, tracking each run end to end.
BullMQ workers · Next.js · Prisma
A C# and .NET 8 MVC application that integrates the Bitpanda API and visualises the account and market data behind it.
C# · .NET 8 · MVC
Telegram bot that runs an assessment, builds a workout plan from it, logs the sessions and tracks body metrics over time.
Telegram Bot API · Prisma · Payments
Analytics dashboard over on-chain network data, built in Python and Streamlit for fast iteration on the charts themselves.
Python · Streamlit
Small internal dashboard and API with session auth and a separate machine key, so a Unity client could read and write its data without a login.
Express · Session auth · JSON store
Regulated clients do not buy demos. These are the standards I hold my own products to, and you can check every one of them.
Not only mocks. Blok ships 194 unit and integration tests plus an end-to-end suite executed twice: once against mocks, once against a real Postgres.
QRma had a 50-operation OpenAPI contract and a 15-model schema agreed before the backend was written. The contract is the spec, and it stays published.
Every significant architectural decision is written down with what it costs and what it rules out, so the next engineer inherits the reasoning, not just the code.
Monitoring, incident management, contingency planning and recovery. I am accountable for the availability of a fintech registered with the Bank of Spain.
I am Matías Jackson Fascioli, an AI engineer and full stack developer based in Madrid. I spent three years at Accenture leading AI applied to data analysis for the Spanish Directorate-General for Traffic, Metro de Madrid and Madrid City Council, and I now work across two fronts: autonomous agents and on-chain infrastructure at the Bitcoin SV Association, and the critical infrastructure of a fintech registered with the Bank of Spain.
I hold a BSc in Mathematical Engineering applied to Data Analysis. I build and run my own products on my own servers, which is where most of the standards on this page come from.
He is an AI engineer and automation specialist based in Madrid, Spain. He builds generative AI, machine learning and end-to-end process automation for banking, fintech and public sector clients, with over four years of production experience.
Yes. He built BrokerAI as a proof of concept for a private banking institution and still advises it. He is accountable for the availability of the critical infrastructure of EurocoinPay, a fintech registered with the Bank of Spain, and contributed to adapting that platform to the EU DORA and MiCA regulations.
That is the usual engagement. He integrates retrieval over your own documents, autonomous agents and LLM orchestration into processes that already exist, including the API contract, the queue, the audit trail and the handoff back to a person.
At Accenture he led AI applied to data analysis for the Spanish Directorate-General for Traffic (DGT), Metro de Madrid and Madrid City Council. That included predictive models, mathematical optimisation for Metro de Madrid night route planning, RAG systems with semantic retrieval, and cloud migration.
Model Context Protocol is a standard that exposes systems as tools an AI agent can operate. He has built several, including one for the Bitcoin SV Association that lets agents hold their own wallets and act on-chain autonomously, and one exposing fourteen tools in his own QRma product.
Both. Spanish is his native language and his English is C2, certified with the Certificate of Proficiency in English. He holds Spanish, Italian and Uruguayan citizenship and has EU work authorisation with no visa required.
He takes on consulting and build engagements alongside his current roles. Messages sent through the contact form reach him directly and he replies within one working day.
He is based in Madrid, Spain, and works both on site in Madrid and remotely across the European Union.
If it involves AI, data or a process that should not need a person in the middle, I can tell you quickly whether it is worth building.
I read every message myself and reply within one working day.