Fred Amaral

Roadblock Title:

The architecture of trust: Transaction integrity for distributed systems

Time:

Wednesday - 10:30 AM (Tower D)

Abstract:

In financial infrastructure, trust isn’t a buzzword, it’s an architectural decision. And when every inconsistency carries a price tag, transaction integrity becomes a foundational requirement, not just a technical detail.

This talk explores how to engineer transactional trust into large-scale distributed systems that weren’t born monolithic and must scale without compromising consistency or performance.

Fred Amaral (CEO) and Jefferson Rodrigues (CTO) of Lerian and the mind behind Midaz, an open-source ledger purpose-built for core banking, will share the architectural principles, design patterns and trade-offs that power scalable and auditable financial systems.

From two-phase commits and CQRS to idempotency and eventual consistency, the session offers a practical, code-informed perspective on combining these mechanisms to scale safely, building integrity that holds up in the real world, even with latency, network failures and parallel services in constant communication.

For engineers building the financial layer of the future, this isn’t theory. It’s infrastructure

Bio:

Fred Amaral is the founder and CEO of Lerian, a tech company building open-source infrastructure for the next generation of financial systems.

At the core of Lerian’s mission is Midaz, a modular, high-performance open-source ledger designed to bring autonomy, auditability and flexibility to the financial sector.

Before Lerian, Fred built a strong track record in leadership roles at BTG Pactual, Movile, and Uber. In 2018, he founded Dock, which became one of Latin America’s leading Banking-as-a-Service platforms and reached unicorn status in 2022.

Fred blends deep technical expertise with strategic vision to rethink how money moves, championing a financial system that is transparent, composable and developer-first.