Here's a refined job description for your search for a mathematician or data analyst:
Company Overview:
We are a data-driven company focused on optimizing advertising strategies across multiple platforms, including Facebook, Google Ads, OTT, and Mobile AI. Utilizing data integration through platforms like TapClicks, we aim to enhance our marketing performance by refining our advanced advertising performance scoring formulas.

Role Overview:
We are seeking an experienced Mathematician or Data Analyst to refine, enhance, and validate our performance scoring formulas. Your expertise will help us optimize our key performance scores to ensure they provide actionable insights for our marketing strategies.
Key Responsibilities:

    Formula Enhancement: Analyze and improve normalization formulas for metrics, ensuring clarity on whether higher or lower values indicate better performance.
    Validation: Validate existing formulas with real-world data sourced from TapClicks, ensuring they effectively represent advertising performance.
    Weighting Methods: Test and evaluate alternative weighting methods for channel success indices, such as the Facebook Performance Score (FPS) and Google Efficiency Score (GES).
    Cross-Platform Methodologies: Develop robust methodologies for cross-platform scoring, including the Comprehensive Media Score (CMS).
    Alignment with Objectives: Ensure that all formulas align with our business objectives and yield accurate, actionable insights.
    Documentation: Provide comprehensive documentation for all enhancements and validations, making technical concepts clear and accessible.

Required Skills:

    Mathematical Proficiency: Strong mathematical and analytical skills, particularly in normalization and weighted scoring systems.
    Advertising Metrics Expertise: Experience working with advertising performance metrics such as CTR, CPC, CPL, CP Conv, and CPV.
    Data Analysis Tools: Proficiency in data analysis tools (Excel, Python, R, etc.) or platforms like TapClicks.
    Problem-Solving Abilities: Strong problem-solving skills with keen attention to detail.
    Testing and Validation Experience: Proven experience in testing and validating formulas using large datasets.
    Clear Communication: Ability to communicate complex technical concepts clearly in written documentation.

Additional Information:

    Current Scoring Models: Our scoring models utilize specific normalization formulas and weighted indices, including:
        Normalization (Higher or Lower Value is Better)
        Channel Success Index (CSI) for Facebook, Google, and Mobile AI
        Comprehensive Media Score (CMS)

    Budget: Open to negotiation based on experience.

If you are passionate about data analysis and optimization, and you possess the skills to drive actionable insights in advertising performance, we would love to hear from you!

Apply now to join our team and help us enhance our advertising effectiveness through advanced mathematical analysis.

Feel free to modify any sections to better fit your company's tone or specific needs!