Quick Responder

Rufat Mustafaev

Data Scientist @ Booking.com
5.0
(3 reviews)
7+ years in Data Science (experimentation, causal inference, ML/AI)
Netherlands
Speaks English and Russian
Active yesterday Usually responds in half a day

Services

$240 / month

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  1. 1 Free 7-day trial
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  2. 2 Ongoing calls + chat
    2 × 60-min calls per month, unlimited Q&A. Replies in 24 hours or less.
  3. 3 No lock-in
    Month to month, no contract.
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MentorCruise summary

Rufat is a Data Scientist at Booking.com with more than seven years of experience in experimentation, causal inference, and machine learning. He works on applied analytics and modeling that inform product and business decisions. He helps data professionals design valid experiments, communicate with stakeholders, and prepare for interviews or promotions.

Based on 3 verified mentee reviews

  • Two reviewers value his practical, tailored guidance on data science problems, including model optimization, experiment design, and stakeholder communication.
  • Two mentees mention mock interviews and practical interview preparation that helped them feel more confident.
  • Two reviews point to useful resume feedback and job-search guidance, including revisions that led to interview invitations.

About

I’m a data scientist at Booking.com, working on applied analytics, experimentation, causal inference, and modeling in a large-scale commercial environment. My work focuses on turning messy business questions into clear decisions and knowing when simplicity beats complexity. Over time, this has meant influencing real product and business decisions, not just producing analysis.

I come from a non-technical background (Economics) and have moved across countries, industries, and roles. Because of that, I work especially well with early to mid-career data scientists, analysts, and career switchers who want to grow beyond “just doing analysis”. On the technical side, I can help with experiment design, causal thinking, and sensible modeling choices. Just as often, I help with promotions, stakeholder management, self-positioning, CVs, interview prep, and presenting insights in a clear, convincing way.

My mentoring style is practical, warm, and honest. We’ll work on your real situation - whether that’s searching for a new role, aiming for a promotion,, building confidence, navigating immigration or relocation, or developing stronger commercial judgment at work. If this sounds like what you need, feel free to book a first session and we’ll take it from there.

What mentees say

5 out of 5 stars

Rufat is an excellent mentor. He is able to help me solve real world data science and ml challenges, going beyond generic advice but tailoring his expertise and guidance to the given problems at hand. Weather it be model optimization, setting up valid experiments or communicating to skeptical stakeholders his guidance has been an instrumental help to me.

Benjamin

Benjamin

Standard Plan • 3 months

5 out of 5 stars

He provided highly practical tips on everything from resume design to interview preparation. Thanks to his resume revisions, I received interview invites from several companies, and the mock interviews helped me feel much more confident and natural. Furthermore, his insights as an active data scientist allowed me to concretely refine my job positioning.

Sunmi

Sunmi

Standard Plan • 3 months

5 out of 5 stars

Rufat was very helpful in preparing me for an important interview, including a mock interview, practical recommendations, and advice that helped me feel more confident.

Li

Li

Lite Plan • 1 month

What happens when you start

You tell Rufat your goals. They see exactly what you want to work on before session one.

You meet within days. Rufat reviews your application and books your first session, usually within a day or two.

You leave with a plan. Concrete next steps and a weekly rhythm from your very first week.

Start your mentorship