SEEKING WORK

Location: Florianopolis, Brazil (UTC-3)
Remote: Yes, preferred. Open to relocation to the US, EU, UK or Canada with visa sponsorship.
Willing to relocate: Yes, with sponsorship.
Technologies: Java (10 years) / Spring Boot, Kotlin, Redis, ClickHouse, MySQL / MariaDB / PostgreSQL, Docker, Ansible, Linux, AWS, Kubernetes, Helm, ArgoCD, Terraform, Grafana, TypeScript / Next.js. Secondary: Go, Rust, Python. Claude Code daily for the last 11 months.
Resume/CV: https://lucasfrederico.dev
GitHub: https://github.com/lucasfrederico
Email: [email protected]
About me. Senior backend engineer, ten years on the JVM. Since 2021 I have been one of the engineers behind LoverCraft, a US survival network that peaks at 1,500 concurrent players and holds 300 to 450 on a normal evening, with 30+ cross-server services spread across several Debian hosts. Team of three to five. My work is low-latency cross-server state over Redis, an economy with an audit row per transaction, JVM tuning, and end-to-end telemetry on ClickHouse. When a backend goes down mid-session, players notice in seconds and I am in the incident channel.
Before that, five years at Senior Sistemas building Java, Spring Boot and Angular for Kinross Gold, Petrobras, Banco BMG and Grendene. Intern to owning the software factory's architecture area.
Production work is closed-source under contract. The open-source side is on GitHub, written up on the site. Best fit: real-time or high-throughput backends, game and multiplayer infrastructure, platform work. English is fluent written, intermediate spoken.