Guillermo García Galindo

Lead end-to-end technical integrations for 50+ enterprise web / app clients across implementing event tagging through tag containers (GTM, Teallium) or MMP (Adjust, AppsFlyer), feed automation, and advanced pixel configurations to ensure accurate data flow and campaign activation.

Act as the primary technical point of contact for enterprise accounts, maintaining proactive, client-oriented communication and regular client conversations to align on performance goals and technical roadmaps.

Use of BigQuery to query, validate, and troubleshoot large-scale programmatic advertising datasets, supporting data-driven optimization and transparent client reporting.

Build and maintain Data Studio / Gsheets + Python Scripts dashboards for real-time, client-facing KPI reporting and performance storytelling.

Optimize bidding DL algorithms and campaign structure across programmatic advertising accounts to improve ROI and overall revenue performance.

Collaborate closely with product and development teams to troubleshoot delivery issues with strong attention to detail, maintaining 95% SLA compliance.

Mentor junior account managers and standardize implementation frameworks to elevate operational quality and consistency across the team.

Drive cross-team automation initiatives that streamline workflows and scale efficiency across markets using internal tools and AppsScript.

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 ROI and drive overall revenue performance.

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

Designed and implemented new cross-departmental workflows, creating standardized documentation, ticketing templates, and training materials to improve coordination and ensure consistent processes across teams.

Managed €1.5M+ annual budget across paid media platforms within the Google and Meta tech ecosystem, generating 38K+ leads while maintaining close, client-oriented stakeholder communication within departments.

Designed and deployed Data Studio dashboards for real-time KPI reporting, integrating GA360 and Salesforce data for cross-functional visibility.

Enhanced conversion tracking and bidding strategies via GTM alongside GA360, applying rigorous attention to detail in tag configuration and QA.

Partnered with regional sales and admissions teams across LATAM and overseas markets, translating campaign data into clear, client-facing performance narratives.

Optimized paid campaigns across Google, Bing, and Amazon within the Google tech ecosystem, applying a detail-oriented approach to account structure that increased CTR by 32%.

Scaled SA360 accounts to manage over 250K+ keywords with advanced automation, enhancing campaign reach and efficiency and maintaining close attention to detail in bid rules and account hygiene.

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

Planned and forecasted PPC/programmatic media budgets exceeding €3M annually across multiple client verticals, building accurate spend forecasts via SA360/CM360 within the Google Marketing Platform ecosystem to support strategic account planning and execution.

Delivered client-facing post-buy reports and performance conversations using Data Studio, Excel and automated GSheets with Zapier and Supermetrics.

Coordinated with media buying, trafficking and analytics teams to ensure accurate, detail-oriented campaign setup and forecasting across multiple client accounts.

Led web and social media strategy, boosting engagement and raising €120K via email and crowdfunding.

Acted as the main point of contact for digital initiatives, maintaining close, client-oriented communication with stakeholders and partners.

Managed cultural program communications, youth exhibition logistics, and digital content using Drupal and social media networks.

Coordinated with cultural institutions and youth organizations, applying strong attention to detail in event and communications planning.

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