Ricardo
Mello
Backend engineer, International Speaker, and open source contributor. Helping developers unlock MongoDB in the Java & Kotlin ecosystem.
"I build things that help developers build better things."
Stack
Certifications
All certifications ↗Backend engineer with 15 years of experience, specializing in Java, Kotlin, Spring, and MongoDB. Currently working as a Senior Developer Advocate at MongoDB.
Throughout his career, Ricardo contributed to large-scale projects across logistics and banking — from improving WMS platforms for companies like Amazon to developing Kotlin-based microservices at C6 Bank. His work helped launch and scale products such as TechInvest and Pix, serving millions of users daily.
At MongoDB, he shares knowledge through technical content, conference talks, and contributions to Spring Data MongoDB, helping Java and Kotlin developers build more effective applications.
Technical writing
All articles →Discover Your Ideal Airbnb: Implementing a Spring Boot & MongoDB Search With Kotlin Sync Driver
Build an application in Kotlin that utilizes full-text search in a database containing thousands of Airbnb listings to find the perfect accommodation.
MongoDB Sharding: What to Know Before You Shard
Sharding as a horizontal scaling strategy, understanding a sharded cluster architecture, shards, config servers, mongos, and distributing data.
MongoDB 8.0 Migration Guide: What You Need to Know Before Upgrading
What's new in version 8.0, general changes, Queryable Encryption, Express query stages, query shape and query settings, compatibility and more.
How to Build Image Similarity Search With Atlas Functions and Triggers
Have you ever imagined taking a photo of yourself, comparing it against a database full of celebrities, and instantly finding out who you look most alike?
Talks & conferences
All events →Regional MongoDB
Spoke on data modeling, Atlas Search and Schema design pattern.
Dev/nexus
Spoke on real-time fraud detection using Kafka Streams, Spring Boot, and MongoDB. Also hosted a mentorship session on careers in Developer Relations.
CITI Bank - MongoDB Day
MongoDB Developer Day with hands-on labs and a full Design Review with multiple engineering teams at Citi.
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.