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Achievement: Galaxy BrainAchievement: Pair Extraordinairex4Achievement: Pull Sharkx3Achievement: Public SponsorAchievement: StarstruckAchievement: YOLOAchievement: Quickdraw

Achievements

Achievement: Galaxy BrainAchievement: Pair Extraordinairex4Achievement: Pull Sharkx3Achievement: Public SponsorAchievement: StarstruckAchievement: YOLOAchievement: Quickdraw

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zC4sTr0/README.md

Gabriel Castro

Senior Software Engineer · Backend & AWS · Game security / anti-cheat · AI coding agents Belo Horizonte, Brazil (UTC-3) · Remote, or relocation with sponsorship

I build and operate online products end to end. For two years I was the technical lead for the official relaunch of GunBound Classic (Gravity Game Hub) in Southeast Asia and Latin America: contract and alpha through commercial launch and live ops, at 22k daily / 131k monthly active users and 293k accounts.

What I've done

  • Game security. Built GunProtect, a C++ anti-cheat (reverse engineering, Windows internals) that ran in production for 10+ years. At Gravity I stopped an exploit forcing up to 20k disconnects a day and built server-side kick/ban/auth for a third-party anti-cheat.
  • Backend & cloud. Rewrote a game broker server, built payment, admin and KPI APIs on AWS, shipped an S3/CloudFront launcher and migrated 189k accounts.
  • Leadership. Led a 12-person team and was the single technical contact for the publisher.
  • AI. I work daily with AI coding agents (Claude Code, Codex) and build with LLMs: RAG, tool calling, MCP, evaluations.

Public projects

Repo What it is
gunbound-image-creator C# desktop tool to edit GunBound IMG files, used for 5+ years across servers and clients
GunBoundTH-Server Go implementation of a GunBound broker server
semantic-paper-router Scientific paper classification with embeddings and vector similarity
manual-handwrite-ia Local AI that learns your handwriting and generates scanned-paper manuscripts
whatsapp-bot Smart WhatsApp bot prototype (TypeScript / Node)

Stack

C++ · TypeScript / Node.js · Go · Python · C# · SQL · AWS · Docker · MySQL / PostgreSQL · x64dbg / IDA / Ghidra

Contact

LinkedIn · sodre.gabrielc@gmail.com

Popular repositories Loading

  1. delphi-autoupdater-gunbound delphi-autoupdater-gunbound Public

    GunBound GITZ's Updater, uses threaded download and zip compression (with password support). Made for GunBound GitzWC, created in 2015,it has been executed in more than 3.000 computers of our players

    Pascal 19 6

  2. gunbound-image-creator gunbound-image-creator Public

    A Desktop Application made in C# to edit gunbound's image files (IMG) - Used for more than 5 years in multiple servers and many clients.

    C# 7 7

  3. gunbound-Img-Tools gunbound-Img-Tools Public

    C# Program to browse GunBound internal files, animations and images

    C# 4 2

  4. GunProtect-Client-GBS2 GunProtect-Client-GBS2 Public

    dll to mimic INCA's nProtect GameGuard authDWORD authorization from the client side - essencially bypassing Gameguard's verification on the client (REQUIRES CUSTOM GAME SERVER BACKEND)

    C++ 2 1

  5. GBSet GBSet Public

    GunBound GBSet Program

    Pascal 2 1

  6. udemy-webscrapping udemy-webscrapping Public

    Repository created to extract data from udemy's page

    JavaScript 2