Let'sBuild

I take products from idea to production. Senior architecture, AI-accelerated delivery, and full ownership of the build. We ship fast without cutting corners.

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I'm Mario

13+ years in payments, digital identity, and security. I lead teams and build backend systems that stay in production.

🇬🇧🇪🇸🇩🇪

APIs, data models, and services designed to handle real production load and scale from day one.

CI/CD, observability, and infrastructure tooling that keeps deployments predictable and teams shipping confidently.

Using AI development tools to accelerate implementation without sacrificing architecture quality or code reliability.

Reliable, well-contracted integrations with payment processors, crypto protocols, CRMs, and third-party platforms.

Replacing manual processes with reliable, observable automation. Pipelines, orchestration, and internal tooling.

Payment infrastructure, crypto platforms, and financial workflows built for correctness, compliance, and uptime.

What I Build

The areas I cover, built around shipping complete, production-ready systems.

Deep Impact AG · May 2025 - Present

Senior engineering role focused on delivering AI-powered solutions for clients, with technical leadership across multiple projects. Responsibilities cover the full lifecycle, architecture, design and delivery, building LLM integrations and turning them into practical, production-ready products.

Paddle · Mar 2020 - May 2025

Senior engineering role within the team responsible for payment methods and payment acceptance at a payments and billing platform for SaaS companies. Over five years focused on building and improving how customers take payments, going deep into the complex world of payments infrastructure.

TouchNote · Apr 2019 - Mar 2020

Senior backend role leading a small engineering team, combining hands-on development with coordination of the team's work and technical direction. Focused on building a solid, resilient backend able to scale with the product.

Yoti · Oct 2017 - Apr 2019

Backend role at a digital identity company, with security and privacy central to everything built. Work focused mainly on back-office systems, progressing from Java to Go alongside the modern tooling emerging around it.

iGEO ERP · Mar 2016 - Oct 2017

Early-stage startup building a cloud-based ERP platform from scratch, tailored to pest-control companies. Started as a full-stack developer and stepped up to project manager within months, balancing technical delivery with product and team leadership.

Amadeus · Apr 2015 - Mar 2016

Lead developer role building back-office platforms for companies operating within the Amadeus travel ecosystem, including clients such as Trenitalia.

Tecnilogica SL · Sep 2012 - Apr 2015

Backend role that started as an internship while finishing university studies, growing into a full member of the team over nearly three years. Contributed to multiple projects, mainly in the tourism sector.

Experience

13+ years across payments, digital identity, and security, leading teams and shipping backend systems end to end.

Technologies

Proven tools chosen for reliability.

Seamless Deployments

Reliable releases with monitoring and rollback built in.

AI Integrations

LLM pipelines hardened for production.

Project Showcase

Systems I've designed and shipped. Payment platforms, crypto systems, SaaS backends.

Let's work together.

Tell me what you're building. I'll respond within a day.

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