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Sandra De MarcosSD

Sandra De Marcos

Business Strategy Branding Acquisition Implementation

€280/day
Madrid, ES
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Sandra

I am a business strategy and marketing consultant, with experience in branding, website creation, and digital project structuring.

I work on both strategic definition (value proposition, positioning, business model) and practical execution: web design and structure, content optimization, business analysis, and marketing plans.

My approach combines structural analysis, behavioral psychology, and clear operating system design. I understand how people make decisions and how to translate that into real differentiation, coherent narrative, and sustainable growth.

I have developed projects from scratch and also helped optimize existing businesses. I can help you with:
• Website creation and structure
• Rebranding and identity definition
• Simplified marketing plans
• Value proposition analysis and improvement
• Structuring ideas and business models
• Content optimization and positioning

I work clearly, structurally, and results-oriented. If you need to move fast, organize your project, or execute with criteria, I can help you.
  • Spanish

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • OXIDIA
    CEO
    CONSULTING AND AUDITS
    March 2024 - January 2026 (1 year and 10 months)
    Madrid, Spain
    Founder and strategic director of a consultancy specializing in structural marketing, business architecture, and the implementation of AI applied to business processes.

    Key responsibilities:
    - Design of positioning and growth strategies based on consumer psychology and decision architecture.
    - Development of business models and monetization structures.
    - Creation of acquisition systems and sales frameworks.
    - Strategic audits and brand redesign.
    - Design of operational flows and internal methodologies.
    - Coordination of external collaborators and strategic project direction.
    - Branding, rebranding, and brand reputation analysis
    - AI Audits
    Business Analysis Brand Strategy Business Model Brand Positioning Branding & Identity
  • Interempresas
    Marketing & B2B Development
    PRESS AND MEDIA
    May 2024 - July 2025 (1 year and 2 months)
    Madrid, Spain
    Responsible for B2B commercial development and digital marketing in an environment focused on specialized B2B media and advertising space sales.

    Functions:
    - Acquisition and negotiation with advertising companies.
    - Design of commercial proposals.
    - B2B relationship management.
    - Analysis of commercial KPIs.
    - Support in digital strategy and visibility optimization.
    - Client portfolio management.

    - Monitoring of conversion and campaign performance.
    Customer Journey Sales and Marketing Customer Loyalty Advertising Customer Relationship Management (CRM)
  • Microbacterium
    Marketing & Digital Strategy Assistant
    PRESS AND MEDIA
    September 2023 - December 2023 (3 months)
    Madrid, Spain
    Collaboration in the marketing area, participating in the development and implementation of digital and strategic actions. Support in the conceptualization of campaigns, preparation of corporate presentations, and design of communication proposals. Participation in the acquisition and management of influencer collaborations, as well as in the planning of visibility and positioning actions. Involvement in basic results analysis tasks and cross-functional support in brand growth initiatives.
    Influencer Marketing Digital Marketing Marketing Branding & Identity Sales Management

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Education

  • Degree in Marketing
    Rey Juan Carlos University
    2024
  • Degree in Law
    UNED
    2026

Certifications

  • LVMH Certificate
    LVMH
    2025
    Positioning Strategy Client Management Luxury Marketing Luxury Product Strategy

Skill set

Categories