FiveM Developer, Fullstack Software Engineer & Cybersecurity Specialist
Need a custom FiveM script, bug fix, script edit, security consultation, UI change, website, optimization, or integration?
I’m FL2S, a Fullstack Software Engineer and Junior Security Engineer with over 3 years of FiveM development experience. I build clean, configurable, and reliable resources tailored to your server.
Services 
- Custom FiveM scripts
- Script edits and feature additions
- Bug fixes and troubleshooting
- Performance optimization
- UI development and redesign
- QBCore, Qbox, ESX, and standalone integrations
- Inventory, target, banking, phone, and dispatch integrations
- SQL and database systems
- Discord bots and integrations
- Websites and dashboards
- Security reviews and exploit prevention
I can also install, configure, test, repair, or extend existing resources.
Why Work With Me?

My professional experience includes enterprise grade software development for large scale E-Shops (50k+ products) and also cybersecurity work at Cybernetica, covering penetration testing, vulnerability analysis, and security consultations. I’ve participated in large international cybersecurity and software engineering competitions where I have landed top placements, more about those on my website.
This allows me to approach FiveM projects with a focus on:
- Clean and maintainable code
- Good server performance
- Secure server-side validation
- Clear communication
- Testing before delivery
- Support throughout development
Technologies 
Lua, JavaScript, TypeScript, Node.js, Vue.js, React, HTML, CSS, PHP, Python, and SQL.
Pricing 
Currently all of my prices are between 10-50€ to get FiveM related projects into my portfolio what I could display. Perfect time to be my first client.
Pricing depends on the project’s complexity, required integrations, deadline, and development time.
Contact me with a description of your project, framework, required integrations, deadline, and approximate budget to receive a custom quote.
Reviews are in the discord ![]()
Contact
Discord: fl2s
Email: markus.erkmann@voco.ee
Portfolio: https://merk.ee/
Discord server: FL2S Dev
