WORK / MGC_MUTUA / UNIT_LINKED

From a spreadsheet to a system
that moves real money.

MGC Mutua is a Barcelona-based insurance mutual. Their Unit Linked product — an insurance-linked investment — was being managed in a spreadsheet. I built the platform that runs it: new clients, contributions, withdrawals, the whole lifecycle, inside their own infrastructure.

Role
Product engineer, end to end
Model
One-time project
Client
mgc.es
Domain
Insurance-linked investments
Excelwhere the product lived before
1 systemclients, contributions and withdrawals
Their stackbuilt inside MGC's infrastructure

A financial product, run by hand.

The Unit Linked product worked — but it lived in a spreadsheet. Every new client, every contribution, every withdrawal meant manual work, and manual work with people's money means operational risk that grows with every row.

An established insurer cannot fix that with a shiny greenfield app. Whatever I built had to live inside their infrastructure, their security requirements and their processes — not mine.

The full lifecycle, in one system.

I designed and built the platform that manages the product end to end: onboarding new clients, processing contributions, handling withdrawals and keeping every movement of money accounted for — replacing the spreadsheet as the source of truth.

The discipline was the opposite of a startup MVP: no clever abstractions, no favorite stack. Software that moves money has one job — being reliably, auditably right — and every technical decision bowed to that.

Adapting to the client is the skill.

Most agencies arrive with their stack and ask the client to adapt. Inside a regulated, established organization that is not an option — and pretending otherwise is how internal projects die.

This is the same judgment I bring to startups, pointed at a different target: understand the constraints first, then build the simplest system that respects them. A spreadsheet retired, an operational risk closed, and a financial product on rails.

When software moves money, boring is a compliment.

Nobody celebrates the system that quietly does the right thing with every euro, every day. That is exactly the point.

Tell me what you are trying to build.

I will help you understand what you actually need, whether that means a one-time product build or ongoing technical leadership.