Helped more than 50 clients break through data challenges and hit their goals through strategy consulting and hands-on implementation. Clients include: - Unilever - Magnum - Dove - Heineken - RedBull - ImmoScout24 - Ferrero Group - Coddict - Neocom.ai - Twins Digital GmbH - Woodruff Sawyer - Allergan Aesthetics

Dimitri Visnadi
Ecommerce Strategy & Attribution Advisor
Extremely insightful conversation with Dimitri. He was able to open my eyes to many possibilities using data science. Will be having another call soon. Highly recommended. Thanks!
I got 2 great ideas from our call that I could implement right away and feel more confident about our marketing spend. Thanks a lot!
Dimitry shifted my whole perspective on data collection and data analysis. I will be a lot more careful not to jump to conclusions prior to knowing I'm actually tracking all the datapoints that matter. I really enjoyed this call. Thank you very much!
Bio
I help ecommerce founders and growth leads make sense of conflicting numbers across Shopify, GA, and paid channels, so they can decide what actually matters before scaling. This is not about dashboards or tooling. It’s about clarity, attribution logic, and decision-making. I bring 12+ years across ecommerce, marketing, and data, with experience spanning startups, scale-ups, corporates, and Google-partnered consulting. I’ve worked with brands like Red Bull, Nintendo, and Unilever, always focused on signal over hype. On GrowthMentor, I can help you with: ↳ Making sense of conflicting Shopify, GA & ad platform numbers ↳ Attribution & channel contribution (what really drives revenue) ↳ Validating assumptions before scaling spend or changing strategy ↳ Getting a clear second opinion when data feels off Best fit for teams with traction who want clarity before action. Languages: 🇬🇧 🇩🇪 🇮🇹 🇪🇸
Expertise
Artificial intelligence
I've built AI and Machine Learning based systems within companies both as a technical lead and a project manager. This dual experience gives me unique insights into the challenges and opportunities at every level of implementation.
Data science
10 years experience in analytics and data science. I'm have strong background on how to own the data pipeline from collection to decision making. I have worked with different technologies and see what my clients are using.
Growth marketing
I lead 50+ clients on their marketing initiatives by using data effectively for better targeting, measuring, and automating. The goal of growth is always clear: more leads, subscribers, customers, less churn.
Marketing automation
I have built marketing data lakes and data warehouses that power dashboards, marketing tools, and analysis in an automated way. This gives marketers the power to know how their campaigns perform and quickly find any inefficiencies.
Product analytics
I have helped various clients understand how their users engage with their product or service. This can range from a user journey analysis, funnel analysis, CLTV and other insights that relate to your product data.
Toolkit

Klaviyo
4 years of experienceI know Klavyio from a data point of view. I can extract data, store data, and analyze Klavyio data on a large scale. I use it to measure ROAS of campaigns
Google Ads
10 years of experienceI know Google Ads from a data point of view. I can extract data, store data, and analyze Google Ads data on a large scale. I use it to measure ROAS of campaigns
Facebook
10 years of experienceI know Meta / Facebook Ads from a data point of view. I can extract data, store data, and analyze Meta / Facebook Ads data on a large scale. I use it to measure ROAS of campaigns
Google Analytics
14 years of experienceI've worked with GA as any junior marketer but my know how comes from an analytical point. I have worked with the GA3 Reporting API for years now and have rebuild the attribution modeling from scratch. With GA4 most API work gets automated by Google so it's easier to extract to model the data in BigQuery
Google Data Studio
11 years of experienceI have a strong understanding about to pros and cons of Data Studio as a visualization tool. I know what visuals work and how to connect the data to it in order to get the best performing dashboard.
Looker
10 years of experienceAs a ex Google partner consultant I know Looker Studio for dashboards design, automation, and insights generation. I created numerous dashboards myself and can guide you doing the same
MySQL
14 years of experienceWriting SQL to query databases like BigQuery, RedShift, Athena, MySQL, Hive, Presto and others. I'm familiar with various dialects and especially joins.
Python
11 years of experienceVast majority of my work is done in Python. I can tell you how to leverage it for analysis purposes or to deploy ML models in AWS or Google Cloud. It's a great language to automate processes and gain insights from your data.
Tableau
7 years of experienceI have built various dashboards with Tableau and connected various data source to it. I know how to apply custom calculations and get tricky visuals done.
Industries
Online Portals
One of my clients is a German market leader in real estate and property listings. I'm familiar with how they run operations and how to put their data to action.
E-Commerce
Have been working with various e-commerce clients in the fashion, travel, and real estate industry. I've always had a data role in the engagement with these companies and now how important PPC marketing is to them.
Marketing Automation
Working with various MarTech teams and supporting them with the data tasks I have seen how data can be integrated into various analytic tools like GA, Amplitude, Intercom, ActiveCampaigns, etc.
Experience
- Data Mining

Online course for freelancers in the data space