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Ervisa B.EB

Ervisa B.

Data & Analytics Consultant

€450/day
Amsterdam, NL
3-7 years

Average response time: 1 hour

About Ervisa

I help small and mid-sized companies design efficient, scalable data frameworks that reduce costs and increase productivity across analytics teams. My consulting work focuses on leading data projects end-to-end, from structuring SQL pipelines and defining clean architecture logic to establishing reporting frameworks that deliver reliable insights without unnecessary complexity or cost.

Beyond the technical design, I focus on building capability within teams. Many companies spend significant senior time training junior analysts or preparing one-off datasets for stakeholders. I take that pressure off by mentoring juniors to develop their SQL and analytical thinking skills, and by training non-technical stakeholders to perform self-service analytics safely and efficiently. This allows senior analysts and data engineers to focus on strategic, high-impact work rather than day-to-day requests.

Consulting focus areas:

  • Leading data modernization projects with scalable and cost-efficient architecture
  • Structuring and optimizing SQL pipelines and models for clarity and performance
  • Designing Power BI frameworks and governance processes for consistent reporting
  • Mentoring junior analysts to build strong technical and analytical foundations
  • Training business stakeholders to use SQL and self-service analytics effectively

I combine strategic leadership with practical implementation, helping companies create well-structured, sustainable data environments where both teams and technology operate at their best.
  • English

    Native or bilingual

  • Greek

    Native or bilingual

Can work on-site
Amsterdam (up to 10km)

Experience

  • TIP Group
    Senior Data Analyst (Hybrid Analytics - Data Engineering Role)
    March 2025 - Today (1 year and 3 months)
    Amsterdam, Netherlands
    • Promoted to Senior Data Analyst for strong performance and end-to-end ownership of high-impact data projects.
    • Leading Databricks migration project: architecting and optimizing large-scale SQL data pipelines and ensuring scalable, high-performance solutions.
    • Designed and implemented Airflow DAGs to orchestrate complex workflows, improve automation, and guarantee reliability in production.
    • Developed Python automation scripts for data integration (including external API ingestion) and operational efficiency.
    • Acted as Interim Product Manager & Team Lead, coordinating 2 data engineers, prioritizing tasks, and ensuring timely delivery of project milestones.
    • Partnered cross-functionally with Product, Finance, and Operations to translate business needs into scalable data solutions.
    Python Airflow SQL Team management Databricks
  • Udemy
    Instructor
    DIGITAL AND IT
    January 2025 - Today (1 year and 5 months)
    Amsterdam, Netherlands
    As a Udemy Instructor, I’ve created two practical, business-focused courses that help professionals strengthen their analytical and technical foundations through hands-on learning.

    1. SQL for Newbies: Hands-On SQL with Industry Best Practices
    Rated 4.8/5 stars, this course teaches SQL through real-world business examples. It focuses on building clean, efficient queries and understanding the logic behind data, helping learners confidently apply SQL in their daily analytical work.

    2. AI Role Play: Data Analyst Live Interview Prep
    An interactive course where learners prepare for data analyst interviews through AI-driven role plays with realistic scenarios and guided feedback. It focuses on communication, analytical thinking, and problem-solving, the skills that truly define strong analysts.

    Both courses emphasize clarity, structure, and practical application over theory. My goal as an instructor is to make complex concepts approachable and give learners the confidence to use data effectively in their work.

    These projects also reflect my broader mission as a consultant, to build data capability within teams and empower individuals to use SQL and analytics strategically, rather than relying on senior support for basic tasks.
    SQL Database Management (e.g., SQL, NoSQL) Business Intelligence (BI) Strategy Training artificial intelligence
  • TIP Group
    Data Analyst
    February 2023 - February 2025 (2 years)
    Amsterdam, Netherlands
    • Developed a comprehensive report from scratch to identify potential losses from suboptimal vendor and part selections, uncovering a 10% annual savings opportunity.
    • Owned end-to-end analytics projects: data discovery, data modeling, QA, dashboarding, stakeholder communication and ongoing maintenance.
    • Mentored junior data analysts, providing guidance on technical skills and career development.

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Education

  • MSc Econometrics and Operational Finance
    Vrije Universiteit Amsterdam
    2020
    MSc Econometrics and Operational Finance
  • BSc Economics
    University of Piraeus
    2018
    BSc Economics

Skill set

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