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

Despina Zalavetoudi

Data Analyst | Product Analytics, A/B Testing, ETL

€350/day
Barcelona, ES
3-7 years

Average response time: 1 hour

About Despina

I help companies and product teams make data-driven decisions by designing experiments, building dashboards, and automating data workflows. With 5+ years of experience in product analytics, A/B testing, ETL pipelines and automations, I deliver actionable insights that improve campaign performance, optimize customer targeting and prevent system failures before they happen.

I typically handle projects such as:

- Product analytics & KPI definition (funnels, retention, cohort analysis, campaign attribution)

- Experimentation & A/B testing (design, analysis, statistical validation, optimization recommendations)

- Dashboards & reporting (SQL-based dashboards, Looker, automated reports)

- Data automation & proactive analysis (ETL pipelines, workflow automation, anomaly detection)

I stand out for my ability to translate complex data into actionable business decisions, and for delivering high-quality, reliable insights that stakeholders can trust. Available for remote B2B contracts or short-term freelance projects across Europe, with flexibility for smaller or long-term engagements.
  • English

    Native or bilingual

  • Spanish

    Conversational

  • Greek

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Glovo,
    Data Analyst
    RETAIL (LARGE RETAILERS)
    April 2025 - Today (1 year and 2 months)
    Barcelona, Spain
    • • Upgraded in-house audience segmentation from manual to fully automated pipelines, enabling more precise targeting and resulting in a 30% growth in addressable audiences.
    Looker Python BigQuery SQL A/B testing
  • Pfizer,
    Data Scientist
    PHARMACEUTICALS INDUSTRY
    January 2021 - April 2025 (4 years and 3 months)
    Thessaloniki, Greece
    • • Participated in hiring panels for technical roles, evaluating candidates and contributing to improved team capability.
    ETL Python PostgreSQL Bash Machine learning

Recommendations

Be the first to recommend Despina

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's in Statistics and Modelling
    Aristotle University of Thessaloniki
    2018
    Master's in Statistics and Modelling
  • Bachelor's in Mathematics
    Aristotle University of Thessaloniki
    2014
    Bachelor's in Mathematics

Skill set

Categories