Rafael Delboni
Lead Software Engineer at Nubank
São Paulo, Brazil
Summary
🤩
Rockstar🎓
Top SchoolRafael Delboni is a Lead Software Engineer based in São Paulo with over a decade of hands-on experience building horizontally scalable, high-throughput microservices predominantly in Clojure. He has led production systems at Nubank and 180° Insurance that leverage hexagonal architecture, Kafka, Datomic/DynamoDB and Kubernetes, coupled with CI/CD automation in AWS. Comfortable across languages from Rust and C/C++ to JavaScript/TypeScript and Lua, Rafael blends functional programming discipline with pragmatic DevOps practices like Pulumi, Tekton and Prometheus-driven observability. He also contributes to Neovim tooling—adding Rust REPL integrations to the popular conjure project—demonstrating a taste for developer ergonomics and language tooling. Known for pairing close customer-facing process mapping with rigorous engineering (TDD, pair programming, state-flow testing), he routinely turns complex domain requirements into reliable, observable services. Colleagues describe him as a systems-minded engineer who equally values clean abstractions and operational robustness.
11 years of coding experience
6 years of employment as a software developer
Digital Acceleration, Innovation, Digital Acceleration, Innovation at Hyper IslandTechnical, Mechatronics, Technical, Mechatronics at Instituto Pentágono de EnsinoBachelor, Information Technology, Computer Network, Programming, Bachelor, Information Technology, Computer Network, Programming at Centro Universitário Fundação Santo André
English, Portuguese
Stackoverflow
847reputation
141kreached
13answers
0questions
Github Skills (17)
fennel10
neovim10
lua10
repr10
replit10
rust10
mongodb6
sequelizejs6
bson6
docker6
json6
javascript6
docker-compose6
mysql6
clojure-cli4
Programming languages (24)
Github contributions (5)
Olical/conjure
Dec 2021 - Jul 2022
Interactive evaluation for Neovim (Clojure, Fennel, Scheme, Python, JavaScript, PHP, R, Lua, Rust and more!)
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:1 review, 8 commits, 1 PR in 7 months
Contributions summary:Rafael primarily contributed to adding and refining Rust-based REPL and evaluation support within the Neovim environment, particularly focusing on the `evcxr` and `irust` clients. This included developing both Fennel and Lua files for interaction with these Rust REPLs. The work involved configuring the integration of external REPL tools and adding the ability to start, stop, and interrupt the Rust evaluation environments within Neovim.
clojurejavascriptluaneovimphp
clktmr/vim-gdscript3
Oct 2019 - Sep 2020
Syntax highlighting and completion for GDScript 3
Contributions:7 commits, 2 PRs, 4 comments in 10 months
gdscriptsyntax-highlighting
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