About
I'm Keila Mateos, Senior Media Buyer
For 7+ years I've been turning ad spend into customers for B2B and B2C brands across Mexico and Latin America.
My story
From graphic designer to Senior Media Buyer
I studied Graphic Design, so my early years were all about creativity. I soon realized a great ad doesn't do much if it doesn't reach the right person, or if nobody measures what happens next.
That's where my paid media journey began. Since 2019 I've planned, launched and optimized campaigns on Meta Ads, Google Ads and LinkedIn Ads for real estate, healthcare and B2B service companies, among others, managing accounts with up to MXN $1.7M in monthly spend.
Today I work as an independent consultant with brands and agencies. I combine full-funnel strategy, end-to-end tracking and applied AI, and I still do what defines me: explain every decision so my clients understand what's happening with their money.
How I work
What you can expect from me
Clarity over jargon.
If I can't explain it to you, it shouldn't be in your account.
Data over gut feelings.
Every change has a reason and a number behind it.
Sales over vanity metrics.
A low CPL only matters if those leads buy.
Honesty over selling.
If something won't work, I'll tell you, even if it means we don't work together.
Experience
7 years in paid media
2025 – today
Senior Media Buyer · Independent consultant
End-to-end management for a client portfolio in Mexico, applied AI and MCP workflows
2022 – 2024
Senior Paid Media Specialist
B2B and B2C clients across Mexico and Latin America, full-funnel strategy, CAPI, GTM and Looker Studio
2019 – 2021
Paid Media Specialist
Campaigns across multiple industries, lead generation, audits and A/B testing
2013 – 2016
B.A. in Graphic Design
The creative foundation I bring to every ad
Toolkit
My toolkit
Ads
- Meta Ads
- Google Ads
- YouTube Ads
- LinkedIn Ads
- TikTok Ads
Tracking
- GA4
- Google Tag Manager
- Meta Pixel
- Conversions API
- Looker Studio
- CRM
AI
- Claude
- ChatGPT
- Gemini
- Meta Ads MCP
- Agents & workflows
Next step
Shall we talk about your campaigns?
I love getting to know new businesses. Tell me what you're trying to achieve and let's see if I can help.
- Free
- No commitment
- 30 min