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Lukas Grebe

Analytics & data governance lead.
Based in Cologne, Germany

I lead analytics end to end: from the data model and its governance to the decisions it informs. Since 2008 I have built analytics teams, tracking infrastructure and the processes that keep data trustworthy, agency-side, in-house and as an independent consultant.

Today I own analytics, experimentation and consent management for a national non-profit, including its GA4 data model and server-side tracking. I speak at conferences on analytics practice and governance.

Skills

Leadership & governance
Analytics strategy and roadmaps, data governance and documentation, measurement plans, building and leading analytics teams, agency and stakeholder management, training for data literacy
Analytics & experimentation
Google Analytics 4 (data model design; migrations from Universal Analytics, Adobe Analytics and Mapp, formerly Webtrekk), Adobe Analytics, A/B testing and CRO, consent management (OneTrust)
Data & engineering
Google Tag Manager (web and server-side), JavaScript, Python, Snowplow, Google Cloud, AWS; SQL (reading and interpreting queries)
AI agents
MCP servers for AI agent access to knowledge systems; Langdock agents with Confluence integration
Reporting
Looker Studio, Tableau, Power BI, D3.js
Systems & IoT
MQTT, KNX, energy metering, network analysis at packet level (hands-on, home automation)
Languages
German and English, both fluent

Recent projects & experience

  1. Deutsches Komitee für UNICEF e.V.

    – today

    When UNICEF needed a replacement for their CRO coordinator during a critical website relaunch and the impending shutdown of Universal Analytics by Google, they selected me to step in. My role quickly expanded beyond CRO as I led the migration to Google Analytics 4, where I designed and implemented a new data model to unify tracking across the organization. This was a critical step in ensuring data accuracy and consistency, which in turn enhanced the effectiveness of their fundraising efforts.

    At the same time, I recognized the growing importance of consent management for both CRO and analytics. With no one in the organization taking ownership of this critical project, I stepped up to ensure full compliance. I managed all aspects—from legal consultations and content creation with the Legal team, to technical integration with OneTrust—creating a seamless, compliant solution that integrated smoothly with our marketing tags.

    Additionally, I independently led the transition to server-side tracking, developing custom tags for AdTriba and Bing Ads. This solution not only improved the reliability of data across UNICEF’s digital ecosystem but also provided significant privacy and legal benefits by eliminating connections to third parties.

    From managing agency relationships for A/B testing and cloud data storage to developing comprehensive tracking documentation for internal and external teams, I have been at the core of transforming UNICEF’s analytics and CRO capabilities. These efforts resulted in more accurate data, faster reporting, and more effective fundraising strategies that have increased conversion rates and better supported the organization’s mission.

  2. DECATHLON Deutschland SE & Co. KG

    –

    Decathlon was looking for a senior interim analyst, but scheduling constraints did not allow me to fill that role. However, I was able to help Decathlon build standardized analytics documentation from scratch and help new hires work with this guide.

  3. Parfümerie Douglas GmbH

    –

    The Analytics Team needed support in verifying their tagging standardization across multiple country setups and providing support for the respective Marketing Teams.

  4. Luxury fashion e-commerce

    –

    An online marketing agency working for a luxury fashion e-commerce retailer asked me to join their client project to revamp data capture with the goal of creating a trustworthy single point of truth. I held a workshop to define and document the business goals and objectives. This documentation formed the basis for my audit of the existing Google Analytics and marketing technology setup.

    To implement the catalogue of changes of the audit, I supported the retailer’s web development and marketing teams with pull requests to their source repositories and Google Tag Manager.

    This project underlined the effectiveness of teaching client teams the business meaning reflected in technical tracking requirements, enabling them to improve and expand on their own accord.

  5. METRO Digital GmbH

    –

    The product owner of web analytics for the world’s fourth-largest retailer by revenue asked me to audit and support their global analytics efforts after switching from Adobe Analytics to Google Analytics in all 26 countries.

    Working with over 30 internal client teams and very limited resources required a special focus on the corporate context in which the analytics effort operates.

    Besides getting more people on the team, my solution to freeing up resources on the team was to delegate data capture and basic reporting while still conforming to global governance requirements. To enable client teams with this work we streamlined the global analytics and tag management implementation, reworked documentation and training for increased data literacy. I successfully demonstrated this approach in working with a pioneer client, who by the end of our demo phase handled their own data capture and reporting with input from analytics limited to QA and release OKs.

    In the meantime, I worked with the scrum master on teamwork processes and workflows. I also developed a bespoke tool for automatic documentation and management of more than 100 analytics properties. A public variant of this tool, götterfunke, was released as open source; it has since been retired.

    This project emphasized the integrated nature of analytics and data in decision making. It focused less on technical requirements and more on people and workflows involved in data-driven decisions.

    Reference contact for this project is Jörg Rüttgers

  6. Consulting for Customer Success Operations

    –

    Exactag Düsseldorf, Germany

    Exactag, a marketing mix attribution service, asked for my support when changing their Customer Success Operations tech stack. I managed the move of customer data and workflows from Pipedrive to Hubspot and its integration with Gainsight CS.

    Rethinking the post-acquisition customer journey, implementing playbooks and health scores with automation at its core allows for a new level of customer care.

    My key takeaway: Increasing costs per acquisition should enable a similarly increasing budget for expanding upon the success of existing customers.

  7. Senior Consultant Digital Analytics and Marketing

    –

    Chefkoch GmbH Bonn, Germany

    Chefkoch – subsidiary of Gruner + Jahr and Bertelsmann – is the food website with the widest coverage across Europe, ranking 3rd globally. As a consultant after my parental leave, I used and further advanced the data and insights infrastructure I had previously built, to support Chefkoch’s paradigm shift to a user-centric approach. My focus here was on advancing Chefkoch’s marketing to enable personalized user communication.

    define report test predict

  8. Workshop in Digital Analytics

    –

    Sparstrom Cologne, Germany

    As a startup in the energy sector Sparstrom asked me to help them improve their analytics capabilities.
    Within the scope of a full-day interactive workshop we ran through the current setup and pivoted to structuring the organization’s goals and objectives. I introduced a methodology that enabled Sparstrom to define a clear overview of initiatives within the organization and their respective data pipelines from capture to analysis and reporting.

  9. Buchbinder

    –

    Digital Analytics Consultant

    Buchbinder wanted to optimize its marketing spending but needed to audit data and measurement first to validate any changes. After a workshop to define and document goals and objectives and an in-depth audit of data capture, I created a set of change requirements to better suit their data needs.
    While implementation was handled in a lean and adaptive process, eventually all suggested change requirements were deemed necessary and implemented. report
    This project underlined the agile and lean approaches possible in analytics, taking one step at a time.

  10. Team Lead Business Intelligence

    –

    Chefkoch GmbH Bonn, Germany

    As data usage at Chefkoch grew more sophisticated, so did the demand for a comprehensive analytics and data team. Having an overview of requirements from my previous work at Chefkoch and leading the hiring process allowed me to shift into a leadership role. In my years leading the analytics team to make Chefkoch more data-driven, I was able to contribute to a comprehensive career development process for all employees at Chefkoch in conjunction with a salary review process for a flat organizational structure.

    • Responsible for a staff of 2 digital analysts and 1 data scientist
    • Creating and managing a team retrospective and improvement culture
    • Clearing external requirements and expectation management in an agile and lean project environment
    • Staff development
    • Establishing team performance metrics
    • Switch from Webtrekk to Google Analytics

    define capture analyze report test predict teamwork context

  11. Senior Digital Analyst

    –

    Chefkoch GmbH Bonn, Germany

    Starting out at Chefkoch GmbH, my work focused on building and growing a company-wide insights infrastructure to enable data-driven decisions.
    Among other tasks, this process encompassed

    • Full Scale Requirements Management and Analytics Implementation Audit (Webtrekk)
    • Customizing the implementation and Reporting infrastructure to better suit data needs
    • Training and Workshops with teams to increase data awareness in decision making
    • Project management for a bespoke Chefkoch analytics platform to supersede third-party vendors. At first via the Apache Big Data Stack (Hadoop) and Docker then the AWS Stack, finally settling on a Snowplow Analytics implementation.

    define analyze report

  12. Senior Web Analyst

    –

    HRS Cologne, Germany

    HRS – Hotel Reservation Service and HRS Global Hotel Solutions is one of the market leaders in the global business travel market, and in Europe, HRS is one of the top three hotel portals. Working in a web analytics team within the 23-person business intelligence department strengthened my insight into BI processes beyond web analytics and into working with raw data at scale.

    • Ad-hoc Reporting for C-Level Stakeholders and Anomaly Task Force Groups
    • Planning, Creation, and Support of bespoke Reports (Adobe Analytics)
    • Consulting Product Management in data-driven decisions
    • Supervising Data Governance routines
    • Tag management (Tealium)

    analyze report teamwork

  13. Digital Analyst & Product Owner (Scrum)

    –

    Sparhandy GmbH (now Powwow GmbH) Cologne, Germany

    Sparhandy GmbH is the leading, independent, online reseller for mobile contracts in Germany. Laying the groundwork for a data-driven marketing approach, I was able to use my experience in online marketing and web technology to act as the interface between the marketing and IT departments. To alleviate constraints in Product Management my analyst role expanded in 2013 to include Product Ownership of sparhandy.de.

    • Web Analytics - Defining and implementing a digital marketing and measurement model and in-house training for Web Analytics (Google Analytics)
    • Website testing & usability optimisation
    • Developing and programming internal tools for process optimisation

    capture analyze report test context

  14. SEO Consultant and Application Developer

    –

    metapeople GmbH Duisburg, Germany

    Now part of Artefact Global, Metapeople GmbH offers customised solutions for national and international online marketing projects in SEM, SEO, affiliate marketing, social media, and online media. During my time here I completed a certified vocational training as specialized computer scientist for application development while also working on the agency’s internal tracking technologies and working with customers in SEO.

    capture report

Speaking Engagements

  • 2026 GA Summit, Milan
    Analytics governance and knowledge systems
  • 2018 Masterplan.com
    Expert Speaker for Tracking and Analytics
  • 2017 Analytics Summit, Hamburg
    Erfahrungen, Erkenntnisse und Ergebnisse, Google Analytics im Einsatz bei Chefkoch: Guten Appetit!
  • 2017 eMetrics Summit, Berlin
    Die Siebensachen einer eigenen Trackinglösung
  • 2016 Digital Analytics Hub, London
    Discussion Leader Data Visualisation – It Is More Powerful Than You Think!
  • 2015 Hochschule Fresenius, Cologne
    Guest lecturer online marketing and ecommerce
  • 2015 eMetrics Summit, Berlin
    Ein neues Rezept für Webanalytics, Erfahrungen beim Aufbau einer eigenentwickelten Webanalytics-Plattform
  • 2015 Digital Analytics Hub, London
    Discussion Leader Behaviour Modelling – In Search of Concrete Conversion Signals
    and DIY Analytics – Developing Your Bespoke Technology Stack
  • 2012 OMCap, Berlin
    Webanalytics and Customer Journey in der Praxis