Server-side tracking, WordPress and WooCommerce, API automation and WhatsApp AI agents. Every project comes with a clear scope, a fixed price and 50% upfront, 50% on delivery.
Six specific services, each with a starting price and delivery time. If your case does not fit exactly, message me for a quote.
Google Tag Manager server-side, Meta Conversions API and GA4 setup to recover the conversions your pixel loses to iOS and ad blockers.
See service →Fix critical errors, white screens, plugin conflicts, slow sites and malware on WordPress and WooCommerce, delivered in 24 hours.
See service →I connect forms, CRMs, Google Sheets, databases and ad platforms with APIs, webhooks, n8n or Python, with error handling and alerts.
See service →Design and development of AI customer service agents for WhatsApp with a knowledge base, Chatwoot, intent classification and human handoff.
See service →Fast landing pages, business sites and WooCommerce stores with technical SEO, structured data and tracking ready from day one.
See service →I review Meta Ads, Google Ads and GA4 accounts to find where budget is lost: structure, audiences, conversions and tracking.
See service →Prices in US dollars.
Real projects. Client names are kept confidential.
16-intent classifier, knowledge base and a 910-city coverage table to answer by city.
550,000 tickets validated by number and code, 10 weekly draws, separate API and security testing.
Daily count by form ID against Meta's numbers, so reports never show mismatches.
GTM server and Meta Conversions API set up without asking the client to edit the site each time.
Campaigns built from an asset bank and left paused for review before launch.
FastAPI, PostgreSQL with pgvector, Redis and a visual flow builder.
I am Oscar Villegas, based in Colombia, working on automation, tracking and web development. I spent years on the agency side running Meta and Google ads, so I know a campaign is only as good as its data: if tracking is wrong, every other decision is made blind.
From there I moved into building what makes things work: integrations between platforms, WordPress sites and stores, server-side tracking, and AI agents that handle WhatsApp customer service in production every day.
I work per project, with scope and price agreed before starting, and everything I deliver is documented so you never depend on me to understand it.
Through the form, WhatsApp or email, with screenshots or a Loom video. No mandatory calls.
What I will do, how long it takes and what it costs, before asking for access.
You get progress updates and everything is documented.
We test with real data and you get a step-by-step handover.
Yes. I work remotely with clients in Latin America, Spain and the United States, and bill in US dollars.
50% upfront and 50% on delivery, through Payoneer or freelance platforms. Longer projects are paid by phase.
Most of my work is asynchronous and in writing, which also leaves everything documented. Send details, screenshots or a Loom video and I start from there.
Yes. That is also why the case studies on this site are anonymous.
Yes, as a tool to work faster. The technical judgment, the testing and the responsibility for what I deliver are mine.
Tell me what is happening. You get an answer the same day with what I see and a proposal.