Hi, I'm Lucas.
Software engineer, 24, based in Brazil.
Since 2021 I've been a senior backend engineer at 
LoverCraft LLC, a Minecraft multiplayer server that has peaked at 1,500 concurrent players and holds 300–450 on a normal evening, with 30+ cross-server services spread across several 
Before that I spent five years at 
Senior Sistemas, in the software factory. I started as an intern and served large clients like 
, 
, 
, 
and 
, building tailor-made solutions in 
AWS and internal Windows and Linux VMs.
experience
5 years 7 months
Remote · US
Senior Backend Engineer · LoverCraft LLC
I've been directly responsible for two gamemodes built from scratch on a multi-server architecture (SkyBlock and OneBlock), working with NMS daily. Some of the projects I've worked on: AuctionHouse, Dungeons, Mail System, Gift System, Leaderboards, backend improvements to cut cross-server teleport times, Bedrock improvements, custom mobs with ModelEngine and MythicMobs, custom items through the resource pack, fallback systems so the server stays perfectly playable without the resource pack, resource pack optimization to use up to 40% less VRAM, and I am directly responsible for Sculk, our telemetry of every inch of the server using ClickHouse and dashboards. Team of 3 to 5 people most of the time.
5 years 2 months
Blumenau, Brazil
Full-stack Developer · Senior Sistemas
From intern to senior; by the end I owned the factory's architecture area. Among the projects: Kinross Gold's third-party management, billing and budget systems, lab management for Olfar, and workforce allocation for Grendene.
Oracle · 
SQL Server · 
selected work
Some of what I've built outside work hours: standalone libraries and tools, public on GitHub, each with tests, CI and tagged releases.
Sculk
LoverCraftprivateEnd-to-end telemetry for the whole network: every gamemode emits typed events into ClickHouse, and dashboards answer questions about retention, economy balance and the journey of a new player.
fanloop
Self-hostable real-time fan-out gateway. A Redis pub/sub backplane delivers every event across all server replicas, with no sticky sessions.
tickloop
Real-time JVM toolkit: a tick scheduler with main-thread safety, backpressure queues, and latency histograms. The patterns come from five years of running a live multiplayer backend.
pgcraft
lazygit-style terminal UI for PostgreSQL: schema browser, SQL editor, EXPLAIN view and live activity, all keyboard-driven. Ships as a multi-arch Docker image.
certification
AWS Certified Cloud PractitionerAmazon Web Servicesverify on Credly ↗stack
Hover a technology to see how long I've been using it.
AWS (3 years)
Agno (6 months)
Oracle (2 years)SQL Server (5 years)