01 B2B AI Lead GenerationPaid acquisition and funnel diagnosis CPA: $96 to $40
I found that the main issue was the channel mix rather than the budget, reallocated spend, and rebuilt reporting around conversion quality. CPA fell from $96 to $40.
Growth & Marketing Engineer / Mexico City
Alejandro Vásquez
Senior growth partner for ambitious founders.
I work with founders who need the rigor of a senior growth team before they are ready to build one in-house.
Paid acquisition, positioning, funnel optimization, experimentation, analytics, and AI-enabled workflows.
Selected clients
About me
I am a Growth & Marketing Engineer and the founder of Thinklab.co. For more than 10 years, I have helped launch and scale digital products across the US and Latin America.
I have advised more than 40 startups, led go-to-market work for 20+ apps and e-commerce businesses, managed $200K per month in paid media at 4X ROI, and built and led a 10-person remote growth team.
My background sits between growth strategy, product, performance marketing, analytics, and automation. That range is useful when the visible problem is not the real constraint.
Outside of work, I explore big ideas through journaling, hiking, and meditation.
Recent projects
02 Fintech SaaSCheckout and pricing optimization 20%+ conversion rate
Funnel data showed that checkout and pricing were the constraint. After the team addressed it, the following week produced 1,870 signups on lower media spend and a conversion rate above 20%.
03 Performance AgencyAI-assisted marketing analytics 4 data sources
I built a production system that connects Meta Ads, Google Ads, GA4, and PostHog to a Slack assistant for plain-language questions, proactive alerts, and decision logging.
04 HR tech platformPaid search launch in a new market 3.7K intent searches
I separated roughly 105K job-seeker searches from about 3.7K searches with real buyer intent before launch, preventing spend against misleading market volume.
05 Media Technology AgencyFinance operations automation Manual to automated
I replaced a recurring quarterly bonus spreadsheet process with a documented workflow built with Google Apps Script and AI, then handed it over for independent operation.
Capabilities
Funnel optimization and performance marketing
Paid acquisition, offers, landing pages, creative testing, conversion tracking, lead quality, and revenue attribution.
Product growth and go-to-market
ICP, positioning, pricing, activation, onboarding, lifecycle experiments, and launch strategy.
AI systems and workflow automation
Reporting, research, lead enrichment, lifecycle triggers, and internal operations.
Working with me
I usually join when a founder or marketing lead has a meaningful growth problem but is not ready to build a full in-house growth team.
Most engagements start with a diagnosis. We agree on the business outcome, establish a reliable baseline, and identify the constraint before deciding what to build or where to spend.
I work async-first, communicate in plain language, and stay close to execution. We can work through a focused audit, a defined growth project, or an ongoing fractional engagement.
Contact
Tell me what you are trying to move. I will tell you honestly whether I am the right fit.
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