Guillermo García Galindo

Data-driven Digital Marketing Analyst
28015, Madrid, Spain.

About

Data-driven Digital Marketing Analyst with over seven years of experience managing and optimizing high-budget paid media performance campaigns through advanced analytics, technical integrations and data visualization.
Proven expertise in programmatic advertising, search marketing and full-funnel measurement, leveraging Google Marketing Platform, DSPs and and analytics ecosystems to deliver scalable ROI across global markets.

Combining a background in Digital Marketing and Humanities, I bridge analytical precision with creative insight to design impactful, data-informed strategies that reach the right audience at the right moment. Skilled in developing customer relationships to influence measurement frameworks and product adoption, I specialize in turning complex datasets into clear, actionable recommendations for both executive stakeholders and cross-functional teams.

Naturally inquisitive and committed to continuous learning, I stay at the forefront of AI-driven marketing innovation -exploring how new technologies reshape communication, attribution, and audience understanding. Curious, collaborative, and forward-thinking, I thrive in data-rich environments and am passionate about using insights to help major advertisers and agencies evolve their measurement and marketing strategies to unlock data-driven growth in order to maximize the business impact of their media investments.

Education

Generation Spain
Madrid, Madrid, Spain

Bootcamp

Front-End Development

IME Business School, Universidad de Salamanca
Salamanca, Castile and León, Spain

Master's

Digital Business Management

UNED & Universitat d'Alacant
Alicante, Valencian Community, Spain

Certification

Digital Heritage & 3D Documentation

Universidad Complutense de Madrid
Madrid, Madrid, Spain

B.A.

Ancient History

Work

RTB House
|

Senior Technical Account Manager

Madrid, Madrid, Spain

Remote

Summary

Led strategic technical integrations and optimization initiatives for 30+ enterprise clients, ensuring high data accuracy and driving significant revenue growth through advanced digital marketing solutions.

Highlights

Optimized bidding Deep Learning (DL) algorithms and campaign structures, significantly improving Return on Ad Spend (ROAS) and overall revenue performance.

Mentored junior account managers and standardized implementation frameworks, elevating operational quality and fostering team development.

Drove cross-team automation initiatives, streamlining workflows and scaling operational efficiency across diverse markets.

RTB House
|

Technical Account Manager

Madrid, Madrid, Spain

Summary

Managed technical account operations for enterprise clients, focusing on integration support, campaign activation, and performance optimization, laying the groundwork for a senior promotion.

Highlights

Led end-to-end technical integrations for 30+ enterprise clients, implementing event tagging, feed automation, and advanced pixel configurations to ensure accurate data flow and campaign activation.

Contributed to the optimization of bidding algorithms and campaign structures to enhance ROAS and drive overall revenue performance.

Partnered with product and development teams to resolve delivery challenges, contributing to consistent 95% SLA adherence.

UNIR - La Universidad en Internet
|

Digital Advertising Coordinator – LATAM & Overseas

Madrid, Madrid, Spain

Summary

Managed and optimized digital advertising campaigns across LATAM and overseas markets, driving lead generation and enhancing reporting capabilities for a €1M+ annual budget.

Highlights

Managed over €1M+ annual advertising budget across diverse paid media platforms, successfully generating 38K+ qualified leads.

Designed and deployed real-time KPI reporting dashboards, integrating GA360 and Salesforce to provide critical performance insights.

Enhanced conversion tracking and bidding strategies using Google Tag Manager (GTM) and GA360, improving campaign efficiency and ROI.

Kanlli
|

Paid Media Specialist

Madrid, Madrid, Spain

Summary

Optimized paid media campaigns across major platforms, significantly increasing engagement and reducing wasted spend through strategic keyword and creative enhancements.

Highlights

Optimized paid campaigns across Google, Bing, and Amazon, achieving a 32% increase in Click-Through Rate (CTR).

Scaled Search Ads 360 (SA360) accounts to manage over 250K+ keywords through advanced automation, enhancing campaign reach and efficiency.

Reduced wasted advertising spend by €45K through targeted feed and creative optimization strategies, maximizing budget effectiveness.

Havas Media Group (Ecselis)
|

Performance Planner

Madrid, Madrid, Spain

Summary

Planned and forecasted significant PPC/programmatic media spends, delivering comprehensive post-buy reports for major clients.

Highlights

Planned and forecasted PPC/programmatic media spends exceeding €3M, leveraging SA360/CM360 for accurate budget allocation.

Delivered comprehensive post-buy reports to clients using Looker Studio, Excel, and Sheets, providing clear insights into campaign performance.

Ka Educa
|

ICT & Communication Manager

Madrid, Madrid, Spain

Summary

Managed web and social media strategy, significantly boosting engagement and securing substantial funding through digital campaigns.

Highlights

Led web and social media strategy, successfully boosting online engagement and brand visibility.

Raised €120K through effective email marketing and crowdfunding campaigns, supporting organizational initiatives.

INJUVE (Instituto de la Juventud)
|

Communications Specialist

Madrid, Madrid, Spain

Summary

Managed cultural program communications and digital content, ensuring effective outreach and logistical support for youth exhibitions.

Highlights

Managed communications for cultural programs and youth exhibition logistics, ensuring successful event execution.

Developed and updated digital content using Drupal, enhancing online presence and audience engagement.

Archivo Epigráfico de Hispania
|

Archive Assistant

Madrid, Madrid, Spain

Summary

Performed meticulous cataloging and indexing of academic archives, ensuring organized and accessible historical records.

Highlights

Performed detailed cataloging and indexing tasks for academic archives related to ancient history, ensuring data integrity and accessibility.

Languages

German

Basic

English

Proficient

Spanish

Native

Skills

Digital Advertising

Google Ads, Meta Ads, LinkedIn Ads, Amazon Advertising, RTB, GMP.

Analytics Platforms

GA4, Looker Studio, Tableau, Salesforce.

Technical Media

BigQuery, Python (pandas), HTML/CSS/JS, GTM, CRO, A/B Testing.

Software Mix

JIRA, Asana, Trello, Slack, WordPress, G Suite, Microsoft 365.