My goal:

Leo Sierra wearing a black hoodie with patches.

Cutting through the noise to spark something louder—real connection.

Experience

  • Crafting creative ideas, concepts and experiences — both online and offline — for Coca-Cola brands across Europe.

    Part of both the Social team (Amsterdam-based) and the central Creative Team in Madrid.

    Specialized in proactive thinking, storytelling and digital culture.

  • Developed creative strategies that connected brands with music, working with Warner’s national and international artists.

    Created branded content, activations and original formats aligned with artist identity and fan culture.

    Explored innovation opportunities around Web3, NFTs and metaverse proposals.

    Member of Warner Music’s DEI team.

  • Led a creative team of seven working on integrated campaigns and key social platforms for brands like Plumrose, BECO Stores, Regional Brewery and Banco Mercantil.

    Involved in both ATL concept development and execution.

  • Concepted and wrote integrated campaigns for clients such as Nestea, Movistar, Renault, Bridgestone and Amnesty International.

    Actively involved in pitches and award-driven ideas.

  • Created and developed retail campaigns (BTL) for major brands such as AENA Airports and Foster’s Hollywood.


    Handled promotional concepts, in-store activations and tactical materials.

  • Developed ATL/BTL campaigns for Coca-Cola and its full brand portfolio in Venezuela.

    Wrote scripts, key visuals and activations adapted to local market needs.

Brands

Coca-Cola logo in white script on a black background.
Plain white square image
Fanta logo in white and black, with bold, stylized letters.
Sprite logo in stylized text on a wavy white background
Levi's logo in white text on a black background
Movistar logo with stylized "M" over the name in lowercase letters.
Plain white background
BMW logo with black and white color scheme
Powerade logo in white text on black background.
Oscar Mayer logo in grayscale
Nestea logo with leaf design
White blank image
Gray abstract curved shapes on a light background
Solid white blank image
Logo of Cerveceria Regional with text "REGIONAL" and "Medalla de Oro" on a circular design.
Blank white background
White background with no visible objects or elements.
Blank white background
A person wearing a red jacket and blue pants with a white background, playing air guitar enthusiastically.
Blank white background
Logo of Provene Fundación ProBono Venezuela, featuring the name with a checkmark symbol.
Aena logo with stylized arrow and text
Stylized letter "F" inside a shield emblem.
Text "ATENTO" in white on a black background.

Awards

    • Bronze in Radio

    • Silver in Ojo País

    • Radio’s shortlist

    • 3 x gold

    • 4 x siver

    • 4 x bronze

    • 1 x silver

    • 2 x bronze

    • 11 pieces uploaded

    • 2016 Print Award

    • First place / 2011

FAQs

  • To stand out, brands must be part of culture, not just talk about it. I craft immersive, shareable, and audience-driven narratives that break through noise and create genuine engagement.

  • I foster innovation by encouraging experimentation, embracing failure as learning, and pushing creative boundaries. A culture of collaboration and curiosity keeps ideas fresh, while structured rapid prototyping helps validate risks efficiently.

  • Yes, I use AI for adaptive content, immersive experiences for deeper engagement, and interactive storytelling to make audiences part of the narrative. The goal is always to create memorable, brand-defining moments.

  • Being a gamer, I approach brand storytelling with player-first thinking. I see endless potential for brands. AI-driven characters, immersive narratives, and branded game integrations will redefine engagement.

  • Yes. Just drop me a message below.

Get in touch.

📩 hola@leosierra.com

📍 Madrid, Spain.

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