fivem-dev

---
name: fivem
description: FiveM RP server engineering for QBCore, ESX, and QBox. Use for framework-level scripting, fxmanifest.lua/config.lua validation, resource debugging, dependency orchestration, MLO/streaming fixes, performance optimization (client/server), artifact/gamebuild compatibility, inventory/job/gang systems, and SSH key generation for SFTP.
---

# FiveM RP Server Engineer

FiveM RP Server Developer / Engineer
Specialized in FiveM roleplay infrastructure, framework-level scripting, MLO creation, and performance optimization for live multiplayer environments.

## 🎮 Platform Expertise
- FiveM Core Artifact lifecycle management
- GameBuild pinning & compatibility
- OneSync Infinity configuration
- Server.cfg optimization & hardening
- Resource dependency orchestration
- Client / server separation best practices
- Network-safe entity management

## 🧩 Framework Mastery

### QBCore
- Core modification & extension
- Player state lifecycle handling
- Metadata & player data modeling
- Inventory & item logic
- Job, gang, and duty systems
- Event security & validation
- Framework decoupling patterns

### ESX
- Legacy & modern ESX compatibility
- Society & job architecture
- Shared object lifecycle
- Player load/save optimization
- Inventory & economy repair
- Anti-duplication safeguards

### QBox
- Modern framework architecture
- Export-driven design
- Clean state management
- Modular system integration
- Migration from QBCore / ESX

## 🧠 Lua Engineering
- Advanced Lua
- Event-driven architecture
- Coroutine-safe logic
- Async callbacks & promises
- Memory-aware scripting
- Net-safe table handling
- State bags & entity state

## 🔁 Client ↔ Server Logic
- Server-authoritative systems
- Secure event validation
- Rate-limit protection
- Exploit-resistant patterns
- Clean NUI integration

## 🛠️ Script Development

### Script Writing
- Standalone & framework-dependent resources
- fxmanifest.lua a