Software Engineer & Security Researcher

m2hcz.

Building secure, scalable systems at scale. Backend engineering for live games with thousands of concurrent users, offensive security research, and infrastructure that holds under pressure.

0yr
Development
0M+
Total Game Visits
0M+
Community Members
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001

About me

Software engineer with 12 years of hands-on experience building backend systems, security tooling, and distributed infrastructure for live games serving thousands of concurrent players.

Deep background in offensive security and vulnerability research — mapping attack surfaces, building exploit chains, and running red team engagements. I bridge engineering and security to build systems that are both performant and resilient.
Location Brazil
Languages Portuguese · English
Twitter @inf0secc
Status Open to work
002

Games I built

Run For Brainrots Independent
Fast-paced multiplayer runner. Engineered scalable state machines for round-based survival loops, high-performance movement replication, and dynamic asset loading to handle viral player growth.
12k–60k playing
1.4B+ visits
Violence District VIOLENCE DISTRICT
Asymmetric horror survival — 5 survivors vs a killer. Built scalable server infrastructure, real-time combat systems, and live-ops features powering one of Roblox's top-ranked horror titles.
10k–25k playing
705M+ visits
346k group
Last Letter MmiiGames
Competitive word game — every last letter counts. Developed core gameplay systems, networking, data persistence layers, and modular architectures for rapid iteration.
5k–7k playing
89M+ visits
Animatronic Nights PlayBox!
Horror survival — hunt or survive as animatronics. Contributing to backend systems, scalable server infrastructure, real-time game systems, and live-ops features.
2k–4k playing
25M+ visits
818k group
Massacre Abysmal Covenant
Asymmetric horror hide-and-seek. Led entire backend architecture — DataStore sharding, server-authoritative combat, anti-cheat, live-ops pipeline, and perk/ability systems.
1.2k–2.2k playing
2.5M+ visits
177k group

Studios & Groups

PlayBox! Backend Dev
Verified Roblox studio. Contributing to Animatronic Nights and other titles under the PlayBox brand.
818,424 members
Abysmal Covenant Lead Dev
Home of Massacre. Leading the entire backend infrastructure, game systems, and live-ops pipeline.
177,173 members
Gothyc! Backend Dev
UGC-verified group with 1.3M+ members. Built core backend systems and engineered game infrastructure across multiple titles.
1,324,293 members
Frontman Studios Backend Dev
Studio behind Violence District — one of Roblox's top-ranked asymmetric horror titles. Contributing to backend architecture, combat systems, and live-ops.
members
VIOLENCE DISTRICT Backend Dev
Official community for Violence District — 705M+ visit horror title. Part of the core team building and maintaining the game's backend infrastructure.
345,880 members
Resenha e Games Backend Dev
Brazilian Roblox community and studio. Collaborating on game infrastructure and backend systems for titles in the Portuguese-speaking market.
members
003

Open Source

NetSentinel Luau
Network security monitoring and threat detection framework with real-time traffic analysis.
PhantomNet Luau
Optimized networking library for high-performance client-server communication with delta compression.
ReconMapper v2 Python
Automated reconnaissance and attack surface mapping. Subdomain enumeration, port scanning, fingerprinting.
SQLi Scanner TypeScript
Automated SQL injection detection and vulnerability scanner with payload generation.
Race-Family-Reroll Luau
Modular Roblox game system with OOP architecture for character reroll mechanics.
OOPModule Luau
Object-oriented programming framework for Luau with inheritance and encapsulation.
Next.js Middleware PoC JavaScript
Proof-of-concept exploit for Next.js middleware bypass vulnerability.
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Tech Stack

Languages
Lua / LuauPythonTypeScript RustGoC C#BashSQL
Infrastructure
LinuxDockerKubernetes TerraformCloudflareGitHub Actions NginxPostgreSQLRedis
Security Tooling
Burp SuitemitmproxyFrida GhidraRadare2pwntools Z3SemgrepNmap Wireshark
Specializations
Scalable Game BackendsDataStore Sharding Anti-Cheat ArchitectureVulnerability Research Exploit DevelopmentRed Team Ops APT EmulationCloud Intrusion Reverse EngineeringSupply Chain Security
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Let's talk

Available for contracts and full-time positions in backend engineering, security research, and systems infrastructure.
Payment — BTC (Lightning / On-chain) · Mercado Pago · Mixed