Zoe Kousteni
Data Engineer · Analytics and AI · Rotterdam, NL Based
01 — About
About Me
Being in the job industry since 2017, I have navigated through various professional environments — from sales and customer-facing roles to data engineering and software development. My experience in sales has forged me into a strong communicator with a people-first mindset that I carry into every technical role I take on.
I'm passionate about data, machine learning, and the way technology can solve real problems. I love to learn across disciplines — languages, design, and engineering all live on my radar. I studied abroad at the University of Osijek in Croatia through the Erasmus+ programme, completed a Bachelor's in Industrial Design & Production Engineering at the University of West Attica, and wrote an AI-based thesis on Human-Robot Interaction and Trust.
Currently based in Rotterdam, NL and actively learning Dutch. 🇳🇱
02 — Education
Education
03 — Experience
Experience
04 — Projects
Projects
04.5 — Case Study
Case Study
An end-to-end analytics case study on a fictional fitness club chain operating across the Netherlands, Belgium, France, Germany, and Spain. Built a full star-schema data model from scratch, designed DAX measures for membership, churn, visit behaviour, and app engagement, and delivered an interactive Power BI report with custom tooltips, slicers, and a branded theme.
The report was originally built in Power BI. A static HTML version is available via the Interactive Dashboard button below that was co-developed with Claude so that it can be accessed without a Power BI license. Note that there are several differences between the static version and the original Power BI report. The original .pbix file can be found in the repository at CaseStudies/PulseClubCS/PulseClub - Case study.pbix.
Sneak peek — click "Interactive Dashboard" above to explore the full report
05 — Skills
Skillset
35+ completed courses across Data Engineering, Machine Learning, Analytics, and Software Development. Strong sense of ownership — I love building things end-to-end and have a keen eye for detail.
06 — Certifications
Certifications
35+ certifications from DataCamp, Accenture, Google, NVIDIA, Coursera, LinkedIn Learning, and Udemy. Showing the 5 most recent.
05 — Contact
Get in Touch
Always happy to connect — whether it's about a project, an opportunity, or just a good conversation. Find me on:
LinkedIn
GitHub
DataCamp
Email06 — A little extra
Interviewing Myself
What are your hobbies outside of work?
Working out and gaming — so yeah, pretty competitive by nature. But the goal is always to beat my past self, not anyone else. Getting 1% better every day is the real game.
Are you interested in learning new technologies?
Always. I love how technology evolves and becomes more user-friendly over time. Right now I'm deepening my data engineering skills and keeping a close eye on advances in ML and data visualisation. I am a fan of all-things new, whether that is a new language (Dutch, Spanish, Python, R), a new framework (Next.js, React, Vue), or a new tool (Looker, Power BI, Tableau). You will always find me tinkering with something new, and I love sharing what I learn with others.
What's the technical challenge you're most proud of?
Teaching myself a big chunk of HTML/CSS/JS with no formal front-end background — and then shipping real projects with it. It proved to me that passion has no ceiling. Also, later in my career, I got to create a full and meaningful Looker report with all sorts of commercial and ad/campaign data that is still being used today. That was a big moment for me.
What do you value most about a team?
Clear communication and smart task allocation. A well-organised team and a team with clear communicators doesn't just deliver — it teaches and learns as it goes. That knowledge-sharing dynamic is incredibly powerful.