Hi, my name is
Alex LaGuardia.
I build things that think.
Full-stack software engineer specializing in AI-powered systems, production platforms, and low-level engine development. I turn ideas into running software — from React frontends to Rust game engines to multi-agent cognitive architectures.
01.About Me
I'm a self-taught software engineer who found his way into code through pure curiosity and a refusal to accept “that's not possible.” What started as tinkering became an obsession with building — not just websites, but complete systems that solve real problems.
Today I work across the full stack and then some: Python backends with FastAPI, React frontends with Next.js, trading systems that manage real capital, a game engine written from scratch in Rust, and AI systems that route thoughts to different language models based on complexity. I don't just use tools — I build them.
My philosophy is simple: ship things that work, then make them better. I believe in craftsman's pride — doing it right the first time, owning the full problem, and never hiding behind “that's not my layer.”
When I'm not building, I'm probably sketching out the next system in my head. I think in architectures, not features.
02.What I've Built
AI-Powered SaaS Platform
Guardia Content
A social media automation platform serving paying clients. Content flows through an AI pipeline — styling, caption generation, quality control, scheduling, and publishing — all orchestrated by named AI agents with isolated worker processes.
- ▸Full content automation: upload to published post with zero manual steps
- ▸Multi-agent architecture: Artemis (style), Mercury (captions), Argus (QC)
- ▸Production SaaS with Stripe billing, OAuth, and custom domain support
3D Game Engine in Rust
Supra Engine
A custom 3D FPS game engine built from scratch in Rust. Features a hand-rolled Entity Component System, wgpu-based rendering, rapier3d physics, and a full movement state machine inspired by Apex Legends. Designed for multiplayer from day one.
- ▸85K+ lines of Rust across 8 crates (render, physics, ECS, input, assets, scripting)
- ▸Movement system: walk, sprint, slide, wall-run, wall-bounce, bunny hop, mantle
- ▸"Rust for the engine, Lua for the game" — clean separation of systems and gameplay
Multi-Strategy Trading System
Paradise
An autonomous trading intelligence platform running four independent strategies across forex, stocks, and prediction markets. Features institutional-grade risk management with a three-layer oversight system.
- ▸4 strategies (position trading, scalping, prediction markets, funding rate arbitrage)
- ▸3-layer risk system: signal quality gate, portfolio risk management, discipline enforcement
- ▸Thesis-driven investment pipeline with automated research cycles
Cognitive AI Architecture
Akatskii
A multi-LLM cognitive layer that routes thoughts to different language models based on complexity — fast pattern matching to Groq, deep reasoning to Claude, vision to Gemini. Features semantic memory with vector embeddings and an agentic tool loop.
- ▸Thought routing: complexity-based LLM selection optimizing cost and latency
- ▸Semantic memory with cosine similarity search and hybrid recall
- ▸Context compaction: extracts facts, drops noise, creates continuity across sessions
Model Context Protocol Server
Guardia MCP
A custom MCP server exposing 70+ tools across business operations, trading, creative writing, and infrastructure. Features frame-based filtering — each interface sees only the tools relevant to its context.
- ▸70+ tools organized by domain with decorator-based auto-registration
- ▸Frame filtering: core (14), serberus (23), paradise (25), luna (55), all (95+)
- ▸Bridges AI assistants to every system in the stack via a single protocol
03.Skills & Tools
Languages
- PythonExpert
- RustAdvanced
- TypeScriptProficient
- SQLProficient
- LuaIntermediate
Backend
- FastAPI
- Async Workers
- Queue Pipelines
- Daemon Architecture
- REST API Design
- OAuth2
Frontend
- Next.js 14
- React 18
- Tailwind CSS
- Framer Motion
- App Router
- Responsive Design
AI & ML
- Multi-LLM Routing
- Agentic Tool Loops
- Vector Embeddings
- RAG Systems
- MCP Protocol
- Prompt Engineering
Infrastructure
- PM2
- Cloudflare Tunnels
- SQLite
- Linux/Ubuntu
- SSH Hardening
- Automated Backups
Game Engine
- wgpu (WebGPU)
- rapier3d Physics
- Custom ECS
- State Machines
- Procedural Gen
- Lua Scripting
04. What's Next
Let's Build Something
I'm currently open to full-stack and AI engineering roles, as well as interesting freelance projects. If you're building something ambitious and need an engineer who can own the full stack from infrastructure to interface, I'd love to hear about it.
[email protected]