I recently went through the interview process for a Data Scientist position, and overall, it was a positive and insightful experience.I'd rate the technical interview as moderately challenging. The questions were well-prepared and practical, focused on skills relevant to the role rather than overly theoretical concepts. Brush up on SQL, Python, and popular ML algorithms for a good chance of success.

I was interviewed by two people of the toptal core team. From minute one I understood that they didn't want to be doing this. They were uninterested, just asking me the questions to get over with it. One of them was arrogant and borderline offensive. I didn't appreciate wasting my time.

Toptal's interview process for software engineers consists of several stages: 1. Language and Personality Screening: Candidates take a language and personality test to assess their communication skills, problem-solving abilities, and cultural fit. 2. Technical Screening: Candidates complete a timed coding challenge in their area of expertise. 3. Live Interview: Candidates participate in a live video interview with a Toptal engineer to discuss their experience, technical skills, and problem-solving abilities. 4. Test Projects: Candidates are given a paid test project to complete and demonstrate their skills. 5. Final Review: A final review is conducted to evaluate the candidate's performance across all stages of the interview process and determine if they meet Toptal's high standards for talent. Overall, Toptal's interview process is designed to identify top-tier software engineering talent and ensure that clients receive high-quality work from experienced professionals.