Senior Data Analyst (Marketing)

Our engineering, trust and safety, and customer support teams work across offices in Rotterdam and several other countries. Traffic during holiday peaks can reach ten times normal levels, and the platform is built for it. Product reviews happen on Thursdays, with demos of whatever shipped that week.

Position summary:

Waal Online has an opening for a Senior Data Analyst (Marketing). We want an analyst who is comfortable pushing back when the numbers don't support the conclusion. Analyst role with a mix of recurring reporting and project work. Most of your day will be in SQL, Excel and Power BI or Tableau. Fully remote. You can work from anywhere in the Netherlands. Hours are flexible, with one short team call each morning.

Your responsibilities:

• Field ad hoc requests through a ticket queue and prioritise them with your manager.
• Support A/B test readouts with basic statistical checks.
• Create forecasts and simple models in Excel or Google Sheets.
• Automate recurring Excel reports with Power Query, Python or scheduled SQL.
• Present results to managers and answer follow-up questions.
• Define metric logic with stakeholders and document it.
• Investigate data quality issues and work with data engineering to fix them at the source.
• Analyse trends, cohorts and funnel drop-off and summarise findings in plain language.

Minimum qualifications:

• 6+ years of experience in a data or reporting analyst role.
• Strong SQL (joins, CTEs, aggregations, window functions)
• Clear written and verbal communication with non-technical stakeholders.
• Bachelor's degree in statistics, economics, business, math or a related field.
• Habit of checking your own numbers before anyone else sees them.
• Advanced Excel: pivot tables, XLOOKUP, Power Query.

Preferred qualifications:

• Industry background in retail, healthcare or logistics.
• Tableau Desktop Specialist or Microsoft PL-300 certification.

Compensation: €5,200 - €6,100 monthly

Compensation and benefits:

• Pension scheme.
• 8% holiday allowance.
• Training budget.
• Bike plan.
• 30% ruling for eligible candidates.
• Laptop and phone.

Candidates must be eligible to work in Netherlands.

Only shortlisted candidates will be contacted.

Start: Within 30 days.

Demo job created on 11jobs for testing and demonstrations. It is not an actual opening at Waal Online.