Establishing Data-Driven Culture at Europe's Largest Marketplace for Teaching Materials

I led the implementation of a comprehensive A/B testing infrastructure at Eduki, transforming how the company makes product decisions and drives growth.

The Challenge

When I joined Eduki, the company faced several obstacles to implementing effective testing:

  • No structured A/B testing framework was in place
  • Teams showed resistance to data-driven decisions
  • We needed to manage a transition between testing platforms
  • Complex data management across multiple platforms created inconsistencies
  • Limited testing processes made scaling experiments difficult

Our Solution

Testing Infrastructure
  • Deployed tests across three complementary platforms:
    • Google Optimize
    • Unleash
    • PostHog
  • Built custom dashboards for centralized analysis
  • Created standardized testing templates

We established a comprehensive process implementation that included:

  • A clear workflow for test management
  • A data-driven test prioritization system
  • Automated data collection
  • Standardized documentation
  • Cross-team communication channels

Cultural Transformation

Perhaps the most significant achievement was shifting the company culture:

  • Moved from "ship and see" to "test and validate" methodology
  • Trained teams on testing principles focused on revenue impact
  • Implemented regular results sharing to highlight revenue wins
  • Developed test hypothesis framework tied to business outcomes
  • Created standardized success metrics

Business Impact

Our solution delivered measurable business results:

  • Increased conversion rates across platforms through optimized user journeys
  • Reduced decision-making time for faster implementation of revenue-driving features
  • Improved feature adoption rates leading to higher user engagement
  • Enhanced user engagement metrics resulting in stronger retention and lifetime value

Process improvements made testing more efficient:

  • Reduced test setup time by 60%
  • Increased number of concurrent tests running across platforms
  • Improved documentation quality for better knowledge sharing
  • Enhanced cross-team collaboration on revenue initiatives
  • Streamlined decision-making process

Testing Scale

We dramatically scaled our testing capabilities:

  • Ran hundreds of tests across platforms
  • Tested multiple user segments
  • Validated features pre-release
  • Optimized pricing strategies
  • Refined content presentation

Key Learnings

Testing Platform Flexibility

  • Multiple platforms needed for different use cases
  • Custom solutions fill gaps in standard tools

Process Structure

  • Kanban system essential for test management
  • Documentation standards drive consistency
  • Clear success metrics guide decisions

Team Adoption

  • Gradual implementation builds buy-in
  • Regular wins demonstrate value
  • Clear processes reduce resistance

Looking Forward

The systems we put in place have positioned Eduki for continued growth through data-driven decision making. The company now has the infrastructure, processes, and cultural foundation to optimize every aspect of the customer experience while driving business results.