Senior Marketing Analyst

Harnham; Amsterdam; On-site; EUR 60,000 - 90,000; Full time

Benefits offered by this job

Wellbeing programme

Clear progression opportunities

Impactful products

Job summary

Harnham is seeking a senior analytics professional to act as a strategic partner across product, commercial and marketing teams in Amsterdam. You will translate complex business questions into analytical approaches and drive measurable growth for a large scale digital marketplace.

You will build dashboards, run experiments (A/B and causal analyses), and communicate findings to senior stakeholders, shaping product strategy and user experience across platforms used by millions.

Qualifications

• Strong commercial experience in data analytics within a digital or marketing focused environment.
• Advanced SQL skills working with complex, large scale datasets.
• Experience using Python for analysis and modelling.
• Hands on experience with experimentation and statistical analysis.
• Proven use of data visualisation tools, ideally Tableau.
• Practical experience with GA4, including event modelling and reporting.
• Confident communicator able to influence non technical stakeholders.
• Strong curiosity around user behaviour, products, and growth.

Responsibilities

• Translate complex business questions into clear analytical approaches.
• Analyse large scale behavioural and commercial datasets to uncover insights.
• Design and evaluate experiments including A B tests and causal analysis.
• Build and maintain dashboards and reports for senior stakeholders.
• Work closely with product managers, marketers, and engineers to drive impact.
• Communicate findings clearly and turn insights into actionable recommendations.

Skills

SQL

Python

Experimentation

Dashboards

Data analysis

Tools

Tableau

GA4

Job description

This is an opportunity to step into a high impact analytics role within a large scale digital marketplace, where data sits at the heart of product, commercial, and marketing decisions. You will work closely with cross functional teams to shape strategy, improve user experience, and drive measurable growth across a platform used by millions.

The Company

They are a leading online platform operating across the Benelux region, supporting both consumers and businesses to buy and sell goods and services at scale. The organisation runs a multi platform environment across web and mobile, with data playing a central role in decision making. Sustainability and the circular economy are key themes, alongside long term customer value and trust.

The Role

You will act as a strategic analytics partner across product, business, and marketing teams, using data to influence decisions and optimise performance.

• Translate complex business questions into clear analytical approaches
• Analyse large scale behavioural and commercial datasets to uncover insights
• Design and evaluate experiments including A B tests and causal analysis
• Build and maintain dashboards and reports for senior stakeholders
• Work closely with product managers, marketers, and engineers to drive impact
• Communicate findings clearly and turn insights into actionable recommendations

Your Skills and Experience

• Strong commercial experience in data analytics within a digital or marketing focused environment
• Advanced SQL skills working with complex, large scale datasets
• Experience using Python for analysis and modelling
• Hands on experience with experimentation and statistical analysis
• Proven use of data visualisation tools, ideally Tableau
• Practical experience with GA4, including event modelling and reporting
• Confident communicator able to influence non technical stakeholders
• Strong curiosity around user behaviour, products, and growth

What They Offer

• Employee support and wellbeing programme
• Collaborative, high trust culture with clear opportunities for progression
• The chance to work on products used by millions, with visible impact

How to Apply

If you are looking for a senior analytics role where your work directly shapes products and strategy, apply now to learn more.