You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Yacine LahrechYL

Yacine Lahrech

Data Science Expert | MMM & ROI | AI/ML | Churn

€750/day
Berlin, DE
8-15 years

Average response time: 1 hour

About Yacine

I help Growth, Marketing and Analytics teams measure true impact and optimize marketing ROI using Marketing Mix Modelling, incrementality/experimentation, and machine learning, and build Customer 360 capabilities (segmentation, churn prediction, and next-best-action) to accelerate value management, retention, and growth.


I combine executive-level framing (the decision we’re enabling) with hands-on delivery (data, modeling, validation, and stakeholder-ready storytelling). I’ve led analytics work across multiple markets and teams, partnering with Marketing, Finance, Product, and Data Engineering.

Typical missions:

MMM / Marketing effectiveness: model build or audit, response curves, saturation & diminishing returns, scenario planning, budget reallocation recommendations

ROI & measurement: incrementality approach, test-and-learn design, KPI framework, dashboarding & decision support

Customer analytics: churn prediction, CLV/retention drivers, segmentation (RFM/behavioral), next-best-action

What you get:

Clear business framing + transparent assumptions

Practical outputs (E2E, production-ready models, recommendations, scenarios, handover)

Fast communication and stakeholder-ready storytelling

If you’re investing in marketing and want to know what drives revenue and where to shift budget, I can help.
  • English

    Native or bilingual

  • Arabic

    Native or bilingual

  • French

    Native or bilingual

  • German

    Basic

Can work on-site
Berlin (up to 50km)

Experience

  • LY Insights
    Founder | Marketing Analytics & AI Consultant
    December 2025 - Today (6 months)
    Berlin, Germany
    I founded LY Insights, a boutique consultancy helping teams improve marketing ROI and customer value through data, experimentation, and ML.
    Services: MMM & ROI optimization, incrementality / test-and-learn, Customer 360 (segmentation, churn, CLV, next-best-action), and Data/AI strategy (readiness, roadmap, governance).
    Marketing Mix Modeling (MMM) artificial intelligence Marketing ROI & Budget Optimization Churn prediction Customer Value Management (CVM)
  • Paramount
    Data Science Director
    FILM AND AV
    March 2023 - Today (3 years and 3 months)
    Berlin, Germany
    Leading Data Science Strategy across Europe, LATAM, Australia, and Canada and driving AI innovation within Paramount Group.

    Directed the end-to-end development of predictive models, customer segmentation, and BI reporting, boosting campaign targeting accuracy by 14%, reducing churn by 10%, and driving an 11% revenue uplift.

    Managed the development and implementation of marketing mix models, optimizing a $550 million marketing budget across international markets, driving a 12% year-over-year lift in ROI.

    Led the design and deployment of AI-driven chatbots
    Data science Churn prediction artificial intelligence Customer segmentation Marketing Mix Modeling (MMM)
  • STC Group (Telecom)
    Associate Director Analytics
    March 2020 - March 2023 (3 years)
    Led the full development cycle of predictive models and customer-segmentation frameworks, from defining business needs and hypotheses through data preparation, model building, and insight generation, reducing high-value churn by 10% and boosting revenue by 12%.

    Delivered deep-dive analyses and evaluated customer value management and retention campaign performance to support revenue growth strategies.

    Oversaw data collection, transformation, and visualization to support strategic decision-making.
    Churn prediction Customer Value Management (CVM) Customer segmentation artificial intelligence Business intelligence

Recommendations

Be the first to recommend Yacine

Help this freelancer shine by sharing your experience working together.

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Master of Science in Statistics
    National Higher School of Statistics and Applied Economics (ENSSEA)
    2013

Skill set

Categories