Software Engineer · C/C++ · Fullstack · Systems
Building ContestarIA at Datista Tech as the founding engineer — a real-time voice AI product running over SIP telephony. From zero to production:
- 🐍 Backend — Python + FastAPI, PostgreSQL, async workers with Celery + Redis.
- ⚛️ Frontend — React + TypeScript: dashboards, embeddable widgets and public sites.
- 🎙️ Voice pipeline — FreeSWITCH + LiveKit for real-time SIP, STT → LLM → TTS loop.
- 🐳 Infra — multi-server Docker, private network over WireGuard, observability stack (Prometheus + Grafana + Loki + Alertmanager with Telegram alerts).
- 🤖 Internal automation — n8n + Claude + OpenAI APIs to optimise team and ops workflows.
- 🥇 #1 of my promotion at 42 Madrid (Fundación Telefónica)
- 🏆 Fittracker — selected to represent Ironhack at the International HackShow
 |
Full-stack app to log workouts and meals on the same dashboard. Selected by Ironhack to represent the bootcamp at the International HackShow.
Stack: React · Vite · Node + Express · MongoDB · Fly.io 
|
|
Evolution of Fittracker, rebuilt around the gym flow. Drag-and-drop routine builder, in-session tracker with set/rep/weight logging and a history calendar.
Stack: React 19 · TypeScript · Tailwind v4 · Zustand · @dnd-kit · Express · MongoDB · Fly.io (x2)
|
 |
First-person 3D maze engine built on raycasting + DDA in C. Textured walls, floor and ceiling, distance-based shading and a small HUD.
Stack: C · MiniLibX · Raycasting + DDA
|
 |
Small social network around films: search, review, list and follow. Server-side rendered with Handlebars over Express + MongoDB, sessions persisted in Mongo.
Stack: Node · Express · MongoDB · Handlebars · Docker · Fly.io
|
 |
2D endless runner built with vanilla HTML5 Canvas and plain JavaScript. Game loop, parallax, entity classes, collision detection and a local leaderboard — no framework, no build step.
Stack: HTML5 Canvas · Vanilla JS · Netlify
|
| 📁 Project | 💻 Language | 🔗 Repo | ℹ️ Description |
|---|---|---|---|
| 💬 ft_irc | C++ |  |
IRC server in C++98 with poll(), channels and operator commands. |
| 🧱 Cub3D | C | |
First-person 3D maze engine with raycasting + DDA. |
| 🧠 C++ Modules | C++ | |
Modules cpp00–cpp08: classes, operator overloading, templates, exceptions, STL. |
| 🐳 Inception | Docker / Bash | |
Small infra from scratch: NGINX, WordPress + php-fpm, MariaDB + bonus services. |
| 💾 Minishell | C | |
Custom shell implementation. |
| 🍝 Philosophers | C | |
Classic dining philosophers with threads and mutexes. |
| ♻️ Push_swap | C | |
Sort numbers with the minimum moves using two stacks (Turkish algorithm). |
| 🔗 Pipex | C | |
Shell pipeline rebuilt with fork, execve, pipe and dup2. |
| 🕹️ So_long | C | |
2D game with MiniLibX and map parsing via Flood Fill. |
| 🖨️ Ft_printf | C | |
printf replica with variadic args and format parsing. |
| 🧵 Get_next_line | C | |
Read a file descriptor line by line — dynamic memory and buffers. |
| 📚 Libft | C | |
Basic libc functions re-implemented from scratch. |
Looking for a software engineer? Ping me at nachopuerto95@gmail.com or on LinkedIn.