Twilio · WhatsApp · Voice AI

Hi, I'm Gonzalo. I build the calls, WhatsApp and AI agents other teams depend on.

Agencies put their logo on my work. Businesses run their intake on it. And I build a lot of it on camera, so you can see exactly how I think before we ever talk.

I reply within 24 hours · English or Spanish
I've worked with teams at OSC Web Design AI Boost Elevate Automations Lionmane Software
01 — Where you fit

Three kinds of people end up here.

You run a business

Calls and messages are leaking leads, and you can't see where.

I audit your phone, WhatsApp and automation setup and show you what each gap costs.

The communication audit →
You run an agency

Your client depends on it, and you need someone who has shipped it before.

I build the Twilio and WhatsApp engine behind your product, white-label, under your name.

See agency work →
You're a developer

You build this stuff and want to get to production faster.

Tutorials with real code, one-on-one mentorship, and soon a community to share what works.

For developers →
02 — The work

I don't deal in hypotheticals. Here is what I've shipped.

All case studies →
Twilio Flex · Contact center · For an agency

An agency's client was counting on a contact center that kept losing calls. I rebuilt it inside Flex.

Read the case study →
100% of missed calls captured. They used to just disappear.
30–40% faster resolution, with full context on screen.
0 duplicate tasks, even in the bursty hours.
"Whatever the project takes, Gonzalo either knows how to do it, or he'll learn how with efficiency. It was an absolute pleasure working with him."
Mario J. Wunderlich — CEO, Lionmane Software
More reviews on my Upwork profile →
03 — Where to start

Every engagement starts with a 45-minute call.

Tell me what's stuck: AI, automation, WhatsApp, phone systems or custom software. I read your case before the call, and we use it to find where to start.

Free, no strings. If I can't help, I'll say so and point you to who can.

Book a free call 45 minutes over video
What you walk away with
01My read on your case, done before we talk 02Where the real problem is, and what it is costing you 03Concrete next steps, whether you fix it yourself, with your team, or with me 04If it makes sense to keep going, how: an audit, a fixed-scope project, or nothing
04 — On camera

I build these systems on YouTube, failures included.

Real builds with Twilio, WhatsApp and AI agents, in Spanish. Each one gets an English write-up on the blog.

Latest from the blog

All posts →
05 — For developers

Building this yourself? I can shorten the road.

Mentorship

One-on-one sessions on Twilio, WhatsApp, voice agents and getting LLM systems to production. Bring your code, your architecture, or your career question.

Ask about mentorship →

Community

Coming soon

A space for devs building communication and AI systems: share what works in production, and find the next job or project.

06 — Questions

What people ask before we talk.

I build the communication systems other teams depend on: Twilio voice and contact centers (Flex), the WhatsApp Business API, AI voice and WhatsApp agents, and the automations around them. I work with businesses, with agencies that resell the work under their own brand, and with developers through tutorials and mentorship.