Quick Responder

Zacharias Voulgaris

Data Science and Cyber-security consultant @ GLG
10+ years of experience in Analytics and 6+ years as a (paid) mentor
Greece 5.0 (2 reviews) Active last week Usually responds in half a day


$180 / month

Best suited for learners who want to go deep into their field and get some feedback on hands-on work

4 calls per month

Unlimited Q&A via chat

Expect responses in 24 hours or less

Hands-on support

Apply now
Flat fee, no hidden costs 7 day free trial! Cancel anytime. Lock in this price now!
Book now
View all sessions


Hi everyone! I’m a Data Science and Cybersecurity professional who's been mentoring learners of all levels for over six (6) years now. For most of this time, I’ve done mentoring professionally through an educational company in the US called Thinkful, geared toward learners of technical disciplines.

These days I work as a data science consultant at GLG and as an educator. As a result, I have plenty of availability for other tasks, such as mentoring. I'm in the Central European time zone (+1 hour from GMT and +6 hours from Eastern Time), and I have a flexible schedule.

When it comes to mentoring, my focus has been Data Science and Data Analytics, though I've also delved into Python programming. On top of that, I’ve authored a couple of books on Julia, so I'm equipped to mentor people in that area too. Other books I've authored are on data science and A.I. topics, while I’ve also developed a couple of hands-on mini-courses on Privacy, particularly the kind related to data science work. Beyond that, I've also written several articles on various blogs, helping educate professionals in all of these fields.

Most of the students I've mentored were taking some courses at the time on data science, data analytics, or Python. Our sessions were mostly technical and often involved looking at projects they had completed, assignments, code drills, and presentations. The vast majority of these students finished their courses successfully and on time. Some of them even found a job within a month since we finished our mentoring sessions. All of the students so far have enjoyed working with me and learned more than just the technical aspects of their craft (e.g., the business dimension and how they could apply creativity in their data-related work). So, if you want to sample the benefits of mentoring, like these former mentees of mine, feel free to contact me. Cheers!

PS - If you wish to view a letter of certification for my services at Thinkful, feel free to contact me. IF YOU WANT TO VIEW RECENT REVIEWS FROM ANOTHER MENTORING PLATFORM I WORK WITH, CHECK OUT THIS BOX FOLDER LINK: https://app.box.com/s/mjto1jlfq5ab6jycsj83itgahhd5wzkl

Open to inquiries

You can message Zacharias to ask questions before booking their services

Get in touch

What mentees say



5 out of 5 stars

Standard Plan · 
15 months

I had a good experience with the mentor, he provided support and resources to navigate areas where i had difficulties.

The wrote 1 more review for the same mentorship


5 out of 5 stars

Zacharias is a great mentor.

Similar mentors