Software & Game Engineer specializing in low-level systems, C++, C#, Unity, and Systems Security.
Specialized in high-performance software engineering, operating system architecture (Win32, UWP/GDK), low-level systems interoperability, automation, and software quality assurance (QA). Author of the SpetDev Technical Research Journal.
Handle: SpetDev / Spet001
Location: Brazil (Remote Worldwide)
I am a software and game engineer focused on systems engineering, software architecture, low-level computing, and technical quality assurance (QA). My engineering philosophy revolves around a simple principle: never treat software as a black box. From my earliest programming days, I have been driven by a relentless curiosity to understand what happens under the hood — how high-level code translates into machine instructions, how operating system memory is managed, and how complex subsystems coordinate in real time.
Grounded in Computer Science foundations, I combine theoretical rigor in data structures, algorithms, and compilers with hands-on production engineering in C, C++, C#, Python, and TypeScript. My technical breadth spans modular gameplay systems in Unity and Unreal Engine 5, deep systems research within restricted OS environments (such as UWP/GDK sandboxes and native Win32 APIs), dynamic/static binary analysis, memory instrumentation, and infrastructure automation via diagnostic scripting.
Having actively contributed across the entire commercial release cycle of a published PC title on Steam, I bring first-hand discipline in shipping production-grade software under real-world constraints: conducting deterministic root-cause crash debugging, CPU/GPU frametime profiling, and rigorous regression validation. I prioritize decoupled testable architectures, permanent fixes at the source over superficial patches, and building clean developer tooling that empowers teams to deliver reliable, high-performance software.
Emphasis on Software Architecture, Low-Level Systems, Operating Systems, Compilers, and Information Security.
Executed comprehensive gameplay and physics regression testing on the commercial Steam release of Sparky Rush by Converting Minds. Documented 50+ critical bugs and conducted deductive Unity C# code inspection to help the core development team isolate root causes rapidly.
Programmed player locomotion, combat mechanics, enemy artificial intelligence (FSM), and reusable gameplay templates in Unity (C#) and Unreal Engine 5 (C++). Built responsive character physics and netcode serialization layers.
Authored open-source C++ injectors, dynamic sigscanners, and memory detour hooks for Windows UWP and GDK games. Conducted runtime security research into entitlement tokens and virtual machine bytecode dispatchers for legacy preservation.
Technical IT infrastructure support in the public sector, managing local network topologies, OS deployments, and automated scheduled maintenance via Python and PowerShell.
Complete retro FPS templates (boomer shooter style) developed in Unity and C#. Locomotion physics, weapon management, ballistic projectiles, and state-machine enemy AI.
Available on Itch.ioCommercial 3D platformer on Steam. Quality assurance role discovering, documenting, and resolving 50+ critical bugs via code-level deductions in Unity/C#.
Available on SteamCustom client for Black Ops 3 supporting both UWP and Steam. Features native C++ injection DLL, network relay proof-of-concept for crossplay, and Electron launcher.
GitLab RepositoryHigh-performance C++ utility injecting custom GSC bytecode into Call of Duty: BOCW Microsoft Store build, bypassing UWP sandboxing via dynamic signature scanning.
GitLab RepositoryC++ systems security research suite featuring custom client modification, real-time bytecode instrumentation, and UWP/GDK entitlement architecture analysis for legacy software preservation.
GitLab RepositoryRepository of GSC bytecode dumps for GDK releases (T5, IW5), working T5 GDK base menu, pre-compiled T6 Jiggy Menu v4.3, and standalone T6 GSC compiler.
GitLab RepositoryInteractive in-browser utilities for binary reverse engineering, game archive inspection, and procedural 3D modeling.
Local-first WebAssembly binary analyzer and dual C-like decompiler workbench powered by Rizin + jsdec and Ghidra C++ Decompiler in Web Workers. Zero server uploads.
In-browser virtual filesystem inspector and carver supporting 25+ PC and console game engines: Bethesda (BSA/BA2), Ubisoft (FORGE), Rockstar RAGE (.rpf), Minecraft mods (.jar), PlayStation (.pkg), CRIWARE (.awb/.usm), FromSoftware (.bnd/.dcx), Square Enix (.sdat/.pfs), Call of Duty FastFiles (.ff), and raw Zlib streams.
100% mathematical color-grading workstation and 3D LUT generator. Matches any game screenshot to a reference frame via Reinhard CIE LAB statistical color transfer and exports ready-to-drop ReShade .ini presets, custom .fx HLSL shaders, and 3D LUT textures.
100% client-side PE32/PE32+ binary header analyzer and patcher running in browser memory via ArrayBuffer. Enables Large Address Aware (4GB Patch / 0x0020), recalculates 16-bit folded PE Checksums, strips ASLR (~0x0040), exports x64dbg .1337 diffs, generates High-DPI manifests, and includes a built-in 1-click Fable3.exe sample.
Procedural engine built to convert logos, emblems, and collectible trading cards (Yu-Gi-Oh!, Pokémon, Magic) into production-ready 3D models using deterministic contour extraction and mesh beveling — 100% code-driven without AI.
In-depth papers, architecture writeups, and reverse engineering breakthroughs.
A tribute to BioWare and the Mass Effect trilogy following EA's closure of BioWare and cancellation of the new Mass Effect: how the Systems Alliance HUD and Normandy CIC Galaxy Map shaped the 3D design of spet01.dev, plus the new Mass Effect OST Jukebox tab and /shepard CLI protocol.
Read Research Paper →Architectural deep dive into ResurgeGDK: bridging Call of Duty: Black Ops III from Steam to the Microsoft Store GDK runtime, detouring COM interfaces in xgameruntime.dll, virtualizing AppX packages for offline DLC preservation, mounting Steam Workshop mods via BOIII Downloader VFS, emulating local GobbleGum telemetry (999x inventory), and embedding Ezz BOIII client security with an integrated GSC bytecode injector.
Read Research Paper →Reverse engineering legacy Windows 10 UWP games (Call of Duty: Infinite Warfare): weaponizing UWP Dumper suspended process lifecycle for AppContainer DLL injection, VMT hooking undocumented IStoreContextServer COM interface, intercepting COD Points package requests, and analyzing why client-side Server-to-Server DLC spoofing fails.
Read Research Paper →Announcing Space 3.0: an interactive Mass Effect-inspired 3D Galaxy Map built with Three.js WebGL. Transforming software projects into explorable celestial bodies with true orbital physics, dynamic OST streaming, and secret sectors.
Read Research Paper →DEVLOG: Rebuilding Outcaster from scratch in Unity 6 (DX11). Engineering a custom LIVE 3D HUD Preview in the Inspector for zero-play-mode 2.5D weapon authoring, modular architecture, and a COD Zombies-style Survival Mode.
Read Research Paper →Sparky Rush: Purrils in Pawsville commercial launch on Steam by Converting Minds! QA breakdown: hunting 100+ collider flaws, fixing ultrawide UI issues, solving 20+ softlocks, and 60 FPS profiling on a GT 710.
Read Research Paper →Stateless GLSL particle shaders, GPU InstancedMesh, and replacing HTML5 video with GPU translate3d Sprite Sheets to eliminate D3D11 SwapChain contention.
Read Research Paper →What is online_tu17_mp.wad? It is NOT a DOOM mod — it is an official Call of Duty: Black Ops 2 (T6 — Title Update 17) Demonware Publisher Storage WAD archive (magic header 0x543377AB / T3WAD) containing zlib-compressed playlists_mp.info, codtv-mp.json, and leagues.info, alongside Black Ops 1's online_tu14_mp_english.wad and online_tu14_sp_english.wad.
Read Research Paper →Step-by-step practical guide to fixing stuttering and crashes in classic DirectX games using Spet's 4gb Patch Online (PE32/PE32+ LAA Studio) and DXVK Vulkan translation.
Read Research Paper →Releasing all original low-poly 3D models from the portfolio simulation and game prototypes under open-source license.
Read Research Paper →Comprehensive architectural guide to Call of Duty's server-side bytecode scripting virtual machine and event notifies.
Read Research Paper →Implementing zero-cost serverless microservices, telemetry, and secure OAuth on static GitHub Pages websites.
Read Research Paper →Open-sourcing custom game modes for Call of Duty: Black Ops 2 (T6) to preserve community game modifications.
Read Research Paper →Analyzing UWP/GDK sandbox pre-installed DLC assets and cryptographic entitlement verification routines.
Read Research Paper →Building a C++ injector with inline execution detours and calling convention translation for Microsoft Store binaries.
Read Research Paper →IDA Pro cross-referencing and offset discovery for legacy engine memory hooks inside modern Windows containers.
Read Research Paper →Technical statement, formal disavowal of RTM cheat bundles, and security disclosure on unauthorized repository dumps of the BO2 Crossplay Relay and repackaged msclients GSC Injector, alongside an architectural breakdown of UDP packet routing and HMAC-SHA1 translation.
Read Research Paper →Eliminating hardcoded offset breakages across patches with dynamic runtime memory pattern scanning in C++.
Read Research Paper →