Posts by rvneto

@rvneto

Roberto de Vargas

Senior Software Engineer & Tech Lead | Microservices Architecture | Java | Datab...
Caxias do Sul, Rio Grande do Sul, Brazil linkedin.com/in/roberto-de-vargas/?locale=en-US Joined April 2026
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Posts by rvneto

rvneto in Articles 7 min read
Hey folks! We've reached one of the most important posts in the My Broker B3 series. Up until now we built each piece of the ecosystem separately — the price synchronizer, the matching engine, the financial custody, the asset catalog. Now it's time ...
rvneto in Articles 6 min read
Hey folks! Continuing the My Broker B3 series, we've reached one of the most business-logic-rich services in the ecosystem: the Broker Wallet API. In previous posts we built the B3 infrastructure market price sync and matching engine. Now we enter ...
rvneto in Articles 5 min read
Hello everyone! Continuing the My Broker B3 series, we've reached one of the most anticipated components of the ecosystem: the B3 Matching Engine API. In the previous post, we built b3-market-sync-api which synchronizes real prices from brapi.dev a...
rvneto in Articles 5 min read
Hello everyone! Continuing the My Broker B3 series, today we'll talk about an essential component on the B3 side of our simulator: the B3 Market Sync API. Before building the engine that decides whether an order gets executed or rejected, we need t...
rvneto in Articles 3 min read
Hey folks! Continuing the My Broker B3 series, today we build trading-broker-asset — the Java service that consumes the quotes published to Kafka by trading-broker-market-data and transforms them into structured data in MySQL, with high-performance ...
rvneto in Articles 2 min read
Hey folks! Quick tooling post today. Before moving forward to the next services, I want to share the tools I use to visualize and inspect data in MongoDB and Kafka during development. Without these tools, debugging an asynchronous data pipeline wou...
rvneto in Articles 3 min read
Hey folks! Continuing the My Broker B3 series, today we'll build the first microservice in the ecosystem: the trading-broker-market-data. This service has a simple and well-defined responsibility: fetch real quotes for Brazilian assets from the Bra...
rvneto in Articles 3 min read
Hey folks! In the previous posthttps://dev.to/rvneto/building-a-microservices-ecosystem-stock-brokerage-simulator-my-broker-b3-45bj, I introduced the overview of My Broker B3. Today we'll talk about the foundation that supports the entire ecosystem:...
rvneto in Articles 2 min read
Hey folks! I'm starting a series of articles to document the development of My Broker B3 — a personal project where I apply advanced software engineering concepts, distributed systems and messaging to simulate the real-world operation of a stock bro...
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