01
Ricardo
Mello
Backend engineer, International Speaker, and open source contributor. Helping developers unlock MongoDB in the Java & Kotlin ecosystem.
Ask RicAILearn more about me, my projects, and my experience01 / About & Experience
Backend engineer.
Developer advocate.
Community builder.
I'm a backend engineer with 16 years of experience designing and building production systems with Java, Kotlin, and Spring. Today, I work as a Senior Developer Advocate at MongoDB. Throughout my career, I've worked across banking, logistics, and retail, delivering systems that support large-scale operations and millions of users — from Pix at C6 Bank to the warehouse management systems behind Amazon's logistics operations in Brazil. Today, I bring that hands-on engineering experience to the developer community through technical content, talks, workshops, and open-source contributions.
JavaKotlinSpring BootSpring Data MongoDBMongoDBMicroservicesPostgreSQLDockerREST APIsKafka Streams
02 / Experience
Professional experience
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02 / Articles
Technical writing
TutorialFoojay
How I built an AI assistant for my career with Java, Spring AI, and MongoDB
A few months ago, I decided to build a virtual assistant that could answer questions about my career, help people learn more about my articles, videos, talks, and projects, and even schedule a call on my calendar.
JavaAI AgentsSpring AIMongoDB
ArticleFoojay
Building an Agentic Warehouse Management System — Part 1: Where AI Agents Add Value
Where do AI agents actually add value in a Warehouse Management System?
JavaAIAgentsWMSLogisticsSpring AIMongoDB
ArticleFoojay
Building an Agentic Warehouse Management System — Part 2: Java and Spring AI
How can Java and Spring AI turn an agent design into an executable workflow?
JavaSpring AIAI AgentsMongoDBAgentic AI
ArticleFoojay
Building an Agentic Warehouse Management System — Part 3: Tools, Decisions, and Actions
How can an AI agent gather context, use controlled tools, make decisions, and take action?
JavaSpring AIAI AgentsToolsMongoDB
04 / Events
Talks & conferences
Upcoming
Recent
Meetup→
Java Meetup - Java & MongoDB
Technical session exploring how Java applications can build data pipelines with MongoDB using the Java Driver, while bringing the Java and MongoDB communities closer together
Dev Day→
Build & Learn Series - Data Modeling
Technical session covering MongoDB data modeling, embedding, referencing, relationships, and schema design patterns
Dev Day→
Build & Learn Series - MongoDB Overview
Technical session covering MongoDB architecture, replica sets, sharding, data modeling, and schema design patterns
05 / Projects
Things I've built
RicasFlix↗
A semantic movie discovery experience powered by natural-language search and advanced filters.
Next.jsReactSemantic SearchMovies
RicAI↗
A personal AI agent that uses RAG to help people discover my professional background, content, talks, events, and projects.
JavaSpring AIMongoDBOpenAI
MongoDB CLI Lab↗
An interactive, browser-based CLI environment for learning MongoDB from scratch — no install required.
MongoDBInteractiveEducationCLINext.js
G12 Football Bet↗
A complete football betting platform built with Java, Angular, and MongoDB.
JavaSpring BootAngularMongoDBKeycloakDocker
06 / Contact
Let's
talk! ☕
Got a question, want to talk tech, or just feel like geeking out for a bit?
Go ahead and grab a time that works for you — I'll be there (with coffee, probably).
Open for speaking engagements, workshops, technical writing and content collaboration.
© 2026 Ricardo MelloSenior Developer Advocate at MongoDB