// 00 — Portfolio — 2026
Available
I build web products that close the loop between design, code and infrastructure.
Antonio Cortazar — Software Engineer
- Role
- Software Engineer
- Based in
- Cancún, Q. Roo — MX
- Focus
- Frontend · PWA · DevOps
I build web products end to end: interface, data and infrastructure. I come from tech support, design and sales, so I understand what the business needs before writing the first line of code.
I design and build, not just code.
I'm Antonio Cortazar — software engineering student (Tecmilenio) blending tech support, design, sales and engineering. I build internal dashboards, real-estate landings and PWAs in production.
- Case studies
- 05
- Clients
- 02
- Certifications
- 10
- English — EF SET
- C1
Selected projects.
Five pieces showing the range: real estate, operations, product and my own brand.
- 01 / 05web — 2026
Aldea Savia
Interactive sales and premium presentation platform for a residential development in Tulum. A high-performance tool that digitizes the inventory.
- Role
- Web Development
- Client
- Onix Living
- Stack
- Custom Development · 3D/2D Interactivity · Google Sheets Integration +1
- 02 / 05dashboard — 2026
Andiani Tablero
Internal real-time operations platform for 250+ vacation rentals: cleaning, maintenance, guests, finance and team, with an AI agent.
- Role
- Fullstack Developer
- Client
- Andiani Travel
- Stack
- React 18 · TypeScript · Firebase +3
- 03 / 05web — 2026
Koa Towers
Premium interactive availability viewer for a residential development. Real-time inventory integration with Google Sheets.
- Role
- Frontend Developer
- Client
- Onix Living
- Stack
- Astro · Vanilla JS · CSS Custom Properties +1
- 04 / 05pwa — 2025
Pocky
Virtual pet PWA with real-time sync across devices. Runs on iOS and Android straight from the web.
- Role
- Fullstack Developer
- Client
- Personal project
- Stack
- React · Firebase · TypeScript +2
- 05 / 05web — 2026
cRZR tech
Website for my tech services brand in Cancún: device repair, web development and consulting. Optimizing hardware, deploying software.
- Role
- Design + Development
- Client
- Own brand
- Stack
- Next.js · React 19 · Tailwind CSS v4 +3
Thanks for your trust.
Companies that put their operation and their brand in my hands.
- 01Aug 2025 — May 2026Web development + IT
Sales platforms for their real-estate developments, internal dashboards with Next.js, and IT inventory and support.
- 02Jun 2026 — nowInternal platform
Real-time operations dashboard for 250+ vacation rentals: cleaning, maintenance, guests, finance and team, with an AI agent that answers guests.
- 03Your company here?Tell me what you need and we'll build it.
Fullstack web development and infrastructure support.
I work end to end: from frontend to infrastructure. Modern web apps, ultra-high-performance sites and custom IT consulting.
- 01
Modern web apps (PWAs)
Custom platforms, centralized operational dashboards and cross-platform apps with real-time sync.
- 02
Web optimization & static sites (SSG)
Corporate landing pages with ultra-high performance, targeting sub-second load metrics and technical SEO.
- 03
IT infrastructure & hardware support
Consulting for technology asset management and enterprise software deployment.
Certifications.
Should we build something?
Open to freelance, internships and paid projects. I reply within 24h.
hola@antoniocortazar.devMessage sent.
Thanks! I'll reply within 24h.