DanielGallego

Passionate about reverse engineering, security and tool development. Active contributor to FiveM/RedM.

01 — About me

Who I am

I'm Daniel Gallego, 19 years old from Spain. Currently studying a higher degree in Cross-Platform Application Development (DAM).

I started in FiveM building Lua scripts, until joining , where I worked for over two years.

I learned C# by reverse engineering Unity games in 2021. Today I'm one of the , with a direct relationship with Rockstar Games.

I also do bug bounty on HackerOne and I'm developing a reverse engineering tool for Capcom's RE Engine.

C#C++JavaJavaScriptUnityUnreal Engine

3+ years

Development experience

Reverse Eng.

GTA V · RDR2 · RE Engine

Bug Bounty

Rockstar · Roblox · Epic

FiveM

Active contributor

02 — Skills

Technologies

Languages

C++FiveM/RedM · REAssetExplorer · Mettis AI

C#REAssetExplorer

JavaScriptMettis AI

LuaOrigen Network

Game Dev & RE

Reverse EngineeringGTA V · RDR2 · Phasmophobia

UnityC# · Modding · Game dev

Unreal EngineMettis AI · AI simulations

RE EngineResident Evil · Tool dev

Infra & Data

MySQLFiveM servers

Git / GitHubProjects · Contributions

CI/CDOrigen Network · Github Actions

Perf & Debug

StackrGTA V

x64dbgGTA 5 · RDR2

RenderDocRE Engine Graphics

03 — Experience

Timeline

Jun 2026 — present

Mettis AI

Software Engineer — Unreal Engine & Full-Stack

Joined full-time after the internship. Full-stack development of internal applications and Unreal Engine simulations for AI model training.

Unreal EngineC++Full-StackPython

Feb 2026 — Jun 2026

Mettis AI

Internship — Unreal Engine & Full-Stack

Worked on Unreal Engine-based driving simulations for AI training and contributed to full-stack development of internal applications.

Unreal EngineC++Python

2025 — present

Rockstar Games / FiveM / RedM

Active contributor — Open Source

Among the most active contributors to the FiveM/RedM repository. Pull requests fixing both low and high priority bugs and adding new features.

C++C#Reverse Engineering

Jul 2023 — Dec 2025

Origen Network

FiveM Developer

Script and FiveM server development. Worked on Marbella Vice 2 and Marbella 3, two of the most well-known servers used by the biggest Spanish-speaking streamers and YouTubers.

LuaJavaScriptMySQL

2024 — Jun 2026

Higher Degree DAM

Cross-Platform Application Development

Higher vocational training in cross-platform software development. Final project: reverse engineering tool for games built on Capcom's RE Engine.

JavaKotlinC#PythonPLSQLTypeScript

04 — Projects

What I've built

2026-nowIn development

RE Asset Explorer

Final Degree Project

A CodeWalker-style reverse engineering tool to extract, modify and visualize game assets from Capcom's RE Engine (Resident Evil, Devil May Cry). Active research on graphics, shaders and proprietary formats.

C#Reverse EngineeringShadersRE Engine

View repository

2026Open source

Stackr

CPU sampling profiler for Windows x64

Modern sampling profiler for Windows. Attaches to any process, captures call stacks and presents results as flame graph, call tree, flat profile and source view.

C++WindowsWebView2ReactDbgHelp

View repository

2025—nowActive

FiveM / RedM Contributions

Pull Requests to the official repo

Active FiveM/RedM contributor — fixing both low and high priority bugs and adding new features.

C++LuaReverse EngineeringGTA VRDR2

View contributions

06 — Contact

Let's talk

Open to new opportunities, collaborations, or just talking about reversing, security or video games.

Send me an email

GitHub

@DaniGP17

Projects and contributions

daniel-gallego

Professional profile

HackerOne

Bug Bounty

Security research

X / Twitter

@Daniel_GP6

Active account. Last tweet: never.