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Alejandro Castaño
About

Marketer, half data analyst, half automation builder. Here is the full picture.

Authorized to work in Germany (post-study residence permit, EU Blue Card eligible).

01Experience

Loona Marketing

Co-Founder & Marketing Lead

2023 — Present

Remote · Berlin / Medellín

  • Run Google and Meta Ads for multiple e-commerce clients — budget pacing, tracking and ROAS.
  • Built GA4 and GTM server-side tracking with Meta CAPI to improve data quality and attribution.
  • Automated reporting and lead handling with n8n and Google Apps Script; build and optimize Shopify stores.

Sleeplay

SEO & Content Marketing Specialist

2024 — Present

Remote

  • Improved organic visibility through technical SEO and content; keyword research and on-page optimization.
  • Monitor performance with Ahrefs and Search Console; partner with cross-functional teams to ship fixes.

Webcreativa

SEO Analyst

2022 — 2024

Medellín

  • Delivered SEO strategies that lifted organic rankings for e-commerce and lead-generation clients.
  • Coordinated with design, SEM and development; produced bilingual (ES / EN) content.

UPS Global Services

Customs Administrative Assistant

2020 — 2022

Medellín

  • Classified imported goods for correct customs duties, ensuring data accuracy and service quality.

02Education

— 2026

Gisma University of Applied Sciences

MSc Business Management & Marketing · Potsdam / Berlin

2015 — 2021

Universidad de Medellín

BSc International Business (marketing emphasis)

03Skills

Analytics & tracking

  • GA4
  • Google Tag Manager
  • Server-side tracking
  • Meta CAPI
  • Search Console
  • Looker Studio
  • Power BI (DAX)
  • SQL (in progress)

Paid media

  • Google Ads
  • Performance Max
  • Shopping
  • Meta Ads
  • Merchant Center

SEO & GEO

  • Technical SEO
  • GEO / AEO
  • Structured data
  • Ahrefs
  • SEMrush

Automation & AI

  • n8n
  • Google Apps Script
  • API integrations
  • MCP servers
  • LLM workflows
  • Python

E-commerce

  • Shopify
  • PDPs & collections
  • CRO

04Languages

  • SpanishNative
  • EnglishB2
  • GermanA1 (starting)