Mariia Koroliuk

With 5+ years as a data scientist at Lyft, Stripe, and McKinsey, plus teaching and supervision experience at Kyiv School of Economics, I help professionals break into data science and leverage AI effectively. I specialize in: - Interview Preparation: Mock interviews, resume reviews, and tips from my experience as an interviewer at top tech companies - Career Transitions: Guiding beginners through the data science journey - from learning fundamentals to landing your first role - AI Strategy for Business: Helping business owners understand what's actually possible with AI (vs. hype) and identify high-impact use cases What I offer: - Mock technical interviews with detailed feedback - Code reviews and portfolio projects that get noticed - "Is this feasible?" AI consultations for business ideas - Step-by-step career transition plans with timelines Currently researching mechanistic interpretability in AI safety while maintaining strong ties to industry practices. I bridge the gap between academic AI concepts and real-world implementation.