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Sergio Tellez

@sergiotellez

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Marketing leader blending digital ads, analytics, and community growth for measurable results.

Colombia

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What I'm looking for

I’m looking for a role where I can run data-driven digital campaigns, manage community and branded content, and collaborate cross-functionally with international clients—using analytics and AI tools to improve ROI, speed up content work, and keep quality high.

I’m a results-driven marketing professional with a solid foundation in business administration and hands-on digital advertising, social media management, and project coordination. I plan and execute campaigns across Meta, Google, and social platforms, and I lead marketing initiatives end-to-end—from strategy and execution to client communication and performance optimization.

I stand out by turning data into decisions: I analyze campaign effectiveness using Excel, Looker Studio, and analytics tools, then apply insights to improve ROI and customer acquisition/retention. I also build and manage WordPress experiences, support branded content and professional video edits, and use AI tools (e.g., ChatGPT, Gemini, Copilot, and others) to streamline content development, ideation, reporting, and learning—so I can stay fast, organized, and effective under pressure.

Experience

Work history, roles, and key accomplishments

Current

Digital Marketing Specialist

Current

Mudanzas J.G Santafe

Jan 2026 - Present (5 months)

Plan and execute digital advertising campaigns across Meta Ads, Google Ads, and social media while managing branded content and WordPress websites. Analyze performance with Meta Pixel, Google Analytics, Excel, and Looker Studio, edit marketing videos, and coordinate client communications to support ongoing growth.

Meta Ads Google Ads Social Media Management Excel Looker Studio WordPress Google Analytics META Pixels Video Editing AI Tools

Marketing Manager

Reborn Marketing

Jan 2024 - Feb 2026 (2 years 1 month)

Planned and executed digital advertising campaigns across Meta Ads, Google Ads, and social platforms, managing branded content and WordPress sites to support marketing objectives. Analyzed campaign performance with Excel, Looker Studio, Meta Pixel, Google Analytics, and CRMs, and produced video and AI-assisted content for clients.

Meta Ads Google Ads Excel Looker Studio WordPress Google Analytics CRM Management Video Editing Social Media META Pixels

Performance Specialist

Winclap

Mar 2024 - Jan 2025 (10 months)

Managed and optimized multi-platform digital marketing campaigns across Google Ads, Meta Ads, TikTok Ads, Bing Ads, and LinkedIn Ads to drive customer acquisition and retention. Analyzed campaign performance for international clients across the Americas and Europe, delivering actionable, ROI-focused insights and using AI tools (ChatGPT, Gemini) for content and reporting.

Google Ads Meta Ads Bing Ads LinkedIn Ads Digital Marketing Campaign Optimization ROI Analytics Customer Acquisition AI Assisted Content (ChatGPT TikTokAds Gemini

Community Manager

Antpack

Jan 2023 - Jun 2023 (5 months)

Managed international clients' social media accounts and developed global engagement strategies, running Meta Ads campaigns to improve visibility and engagement. Produced content and performance reports, collaborated with designers on multimedia assets, and used AI tools like ChatGPT and Gemini to enhance copywriting and ideation.

Social Media Management Community Management Meta Ads Digital Campaigns Client Reporting Keyword Strategy Multimedia Content Creation AI Assisted Copywriting Customer Relationship Management content analysis

Administrative Assistant

Tecnisystems S.A.S

Nov 2021 - Dec 2022 (1 year 1 month)

Provided administrative and customer-service support for project development, including data entry, records management, and computer system updates. Supported marketing and online customer service via social media, coordinating digital content production with the design team for videos, photos, and website assets.

Administrative Support Data Entry Records Management Customer Service Social Media Management Digital Communication Digital Content Support Video and Photo Production Web Content Support

Education

Degrees, certifications, and relevant coursework

Santo Tomás University

University Degree in Marketing, Marketing

2020 - 2024

Completed a university degree in Marketing, focusing on market research, product research, and digital marketing analysis.

Santo Tomás University

University Degree in Business Administration, Business Administration

2019 - 2023

Completed a university degree in Business Administration, gaining knowledge in business management, organizational operations, and strategic planning.