Alessandro Osti.

I have been writing code since 1999. The first 19 years were spent on very different projects: healthcare management systems with complex Oracle architectures and PL/SQL optimization, native Android applications with NFC, GPS, and IoT device integration, telecom infrastructure with IVR systems and C++ drivers for contact centers. I worked as a consultant specializing in system integration, developing ERP middleware and migration tools for enterprise platforms.

Environments where software ships through rigorous processes and where a bug has real costs. That is where I learned to build robust software — not just software that works.

Since 2018 I am a Senior Backend Developer at Lynx Group, working on enterprise systems for major Italian banking and insurance groups: developing REST and SOAP services on Java EE architectures with JBoss and Spring, integrated with clients' proprietary frameworks. Designing complex relational schemas and PL/SQL procedures on Oracle for critical business logic. I have worked on core banking platforms, on a retail mobile banking application for a major national bank, and on digital certification systems.

In parallel, in 2012, I started building MAOTrade, an automated trading system running with real capital. What started as a project with my father became my permanent lab: Python, FastAPI, Docker, microservices — everything battle-tested in production, every day, for over 12 years.

Today my focus has shifted to AI engineering. Not because it is trendy, but because I built something concrete on top of it: ARIA, a financial analysis assistant with a multi-LLM architecture, RAG, and streaming. I study, build, and document everything publicly. I also hold an MBA in Finance — accounting, management control, business planning, company valuation. A background that gave me a concrete understanding of how businesses work from the inside: skills I consider essential in any professional context, and that I apply to financial market analysis.