About
I'm Fernando, an industrial engineer turned self-taught developer. I've been shipping production software since 2018, for companies like QuestionPro, Huli and Alegra and for my own products.
I've launched 10+ products, including LunaNotes (50k+ users) and TuMenuDigital.mx (500+ SMBs). Running them taught me what matters: shipping, listening to users and keeping things simple.
Coding is my work and my hobby. When I'm not building, I'm probably gaming.
- Shipping software since
- 2018
- Products launched
- 10+
- Based in
- Mérida, Yucatán
- Languages
- Spanish, English
Experience
- 2025 — 2026
Led AI from first prototypes to production: inbound and outbound voice agents, WhatsApp, email and support agents on a shared retrieval layer, plus the platform to configure and monitor them.
- 2022 — 2024
Records, scheduling and billing software used daily by doctors and patients across Latin America. Led the migration to a new electronic invoicing system.
- 2021 — 2022
Rebuilt core business modules as micro frontends and designed the architecture other teams used to ship their own.
- 2019 — 2021
Built a Gmail productivity extension from zero to launch, shipped in 16 languages, with the UI library it scaled on.
- 2018 — 2021
Dashboards and automated reporting pipelines that replaced manual reporting across departments.
Products
Products I build and run myself.
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TuMenuDigital.mx
Point of sale and digital menus for restaurants across Mexico.
- SaaS
- 500+ SMBs
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LunaNotes
AI study notes, diagrams and flashcards from any video, lecture or PDF.
- Web app + Chrome extension
- 50k+ users
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bip
Tamper-proof QR time clock so Mexican SMBs can prove when every employee clocked in and out.
- SaaS + mobile app
- Coming soon
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Rumi
The app for running the house together: shared chores, turns and shopping lists.
- Mobile app
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PocketLabs
Calm, minimal one-handed mobile games, starting with Boink.
- Mobile games
- Boink beta
Earlier products
Experiments and products I launched, learned from and retired.
- LunaSales AI summaries, KPIs and suggestions from sales calls. SaaS Retired
- Brinner Food challenges that earned points at local restaurants. Web + mobile app Retired
- Async Planning Poker A free alternative to Jira's planning poker plugin. Chrome extension Retired
- Tweet to Threads Cross-posted tweets to Threads in one click. Chrome extension Retired
- Twitter View Count Remover Hid view counts on tweets. Chrome extension Retired
- #ConstruyendoEnPúblico A Spanish blog about building products in public. Blog Retired
Tech stack
Everything I've used to ship production software. My day-to-day setup is on the Uses page.
Favorite stack
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Agent harnesses
Where I run coding agents day to day.
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AI models
The models behind the agents I build.
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Agent building
Agents that look things up, call tools and take action.
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Voice & messaging
Agents that talk to customers over phone and chat.
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Frontend
The visual and interactive side of products.
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Mobile, desktop & extensions
Apps that live outside the browser tab.
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Backend
The core logic behind the UI.
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Databases
Where the data lives.
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ORMs
How the code talks to the data.
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Infrastructure
Shipping and running products in production.
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Payments
Checkout, subscriptions and getting paid.
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Testing & analytics
Knowing it works, and knowing how it's used.
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Version control
Where the code lives and gets reviewed.
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Build tools
Bundling and dev servers.
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Design, UI/UX
User-friendly, good-looking interfaces.
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Business intelligence
Turning data into business decisions.
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Let's build something
Tell me what you're building. I'll reply with questions, a rough plan and next steps.