GCAbout Guillermo
I’m a freelance paid ads specialist and digital marketing consultant with extensive experience helping businesses transform ad spend into measurable growth 📈
My approach is straightforward: Honest conversations about what your business needs and realistic timelines to get there.
My expertise covers both web and app campaigns, managing different paid channels like Google Ads, Meta, TikTok, Snapchat, LinkedIn, Apple Search Ads, Programmatic and Native advertising.
Having worked across multiple industries, I’ve helped startups, brands, and app-based businesses maximise ROI, lower acquisition costs and achieve sustainable growth.
💡 Core Skills & Expertise
- Strategy that aligns with your business goals, not just vanity metrics
- Multi-Channel Expertise focusing on the ones that adapt to your needs
- Web & App Campaigns depending on your products
- Creative & Analytical Balance from ad creation & A/B testing to performance analysis, competitor research & landing page solutions
- Tracking: Pixel implementation to track your leads
➡️ If you’re looking for a performance marketing consultant who can combine strategy, execution, and optimisation to turn clicks into customers, let’s connect
Spanish
Native or bilingual
English
Fluent
German
Conversational
Catalan
Fluent
French
Basic
Can work on-site
Berlin (up to 50km)
Experience
- FreelanceFreelance Paid Ads Specialist | Google Ads & Paid Social ConsultantSeptember 2025 - Today (9 months)Berlin, GermanyI’m a freelance paid ads specialist and digital marketing consultant with extensive experience helping businesses transform ad spend into measurable growth 📈My approach is straightforward: Honest conversations about what your business needs and realistic timelines to get there.My expertise covers both web and app campaigns, managing different paid channels like Google Ads, Meta, TikTok, Snapchat, LinkedIn, Apple Search Ads, Programmatic and Native advertising.Having worked across multiple industries, I’ve helped startups, brands, and app-based businesses maximise ROI, lower acquisition costs and achieve sustainable growth.💡 Core Skills & Expertise- Strategy that aligns with your business goals, not just vanity metrics- Multi-Channel Expertise focusing on the ones that adapt to your needs- Web & App Campaigns depending on your products- Creative & Analytical Balance from ad creation & A/B testing to performance analysis, competitor research & landing page solutions- Tracking: Pixel implementation to track your leads➡️ If you’re looking for a performance marketing consultant who can combine strategy, execution, and optimisation to turn clicks into customers, let’s connect
- FREENOWDigital Marketing Manager - App CampaignsSeptember 2022 - August 2025 (2 years and 11 months)Berlin, Germany• Ran performance campaigns for activation, retargeting & re-engagement• Measured incrementality and optimized for ROAS• Improved video & static creatives for both branding and performance• Conducted A/B tests and reported insights to local markets & C-level stakeholders• Planned & executed awareness campaigns, including brand lift studies across publishers• Google POC, collaborating on tests and strategic projects• Developed SKAN campaigns on iOS for accurate tracking and optimization• Delivered regular presentations to different stakeholders
- Digital Performance GmbHSenior Mobile Marketing ManagerJanuary 2020 - September 2022 (2 years and 8 months)Berlin, Germany• Planned, negotiated, and optimized CPC, CPM, CPA & CPI campaigns with CLV-driven ROI goals• Analyzed campaign data to find opportunities in targeting, bidding, and creative direction to improve performance & scale volume• Partnered with internal teams & external vendors to deliver integrated, results-driven campaigns• Provided strategic reporting and recommendations to senior leadership and key stakeholders• Tested new platforms & providers while optimizing existing display channels• Oversaw creative direction for banners, videos, and landing pages to enhance engagement and conversion• Expanded programmatic & RTB media buying, introducing new platforms and scaling high-performing channels
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Education
- Bachelor of Business Administration (B.B.A.)Hochschule BremenBachelor of Business Administration (B.B.A.)
- Bachelor of Business Administration (B.B.A.)Universitat de ValènciaBachelor of Business Administration (B.B.A.)