More information about Sergey I.

Q: How many credits do I need?

Unfortunately, there’s no set answer to that question as every situation is different. We recommend doing one or two sessions with a coach to get started. They’ll be able to give you an assessment of how many sessions you’ll need overall.

Q: Are credits refundable?

Yes, unused credits can be refunded within 30 days of getting purchased. After 30 days the credits cannot be refunded anymore, but you can still use them at any point in the future. If you do get a refund it will be corrected for the discount you initially got. As an example, imagine you have purchased 10 credits, and paid 10 x $48 = $480. If you end up only using 5 credits, we will refund you the difference between what you have paid ($480), and what you would have paid had you purchased 5 credits (5 x $50 = $250). So in this specific example we would refund: $480 - $250 = $230.

Q: How much do credits cost?

Credits cost $50 to $40 per credit. The more you buy, the cheaper they get.

Q: How many credits do coaching sessions cost?

Coaches cost 2, 3, 4 or 5 credits per 1h coaching session.

Sergey I.

4 credits

Per 1h session

Applied scientist, Data science manager, Data scientist, Machine learning engineer, Research scientist

Amazon

20 clients (45% rebook rate)

5.0 (8 reviews)

2022-Present: Amazon Web Services (AWS), Senior Applied Scientist, Paris 2015-22: Criteo, Senior Research Scientist, Paris

I am a Sr. Applied Scientist at Amazon Web Services with over 10 years of research and applied ML. I have published papers at the top ML conferences (ICML, ICLR, etc.), have 10+ h-index and defended my PhD in AI/ML.

I am passionate about scaling my knowledge and experience with others through resume reviews, interview coaching, take-home assessment reviews, salary negotiation, career coaching, leadership coaching, and mentoring.

Get the job

Interview coaching

I have conducted over 100 interviews for various roles, including data scientists, applied scientists, machine learning engineers, and solution architects. I conduct both technical and functional interviews, covering ML depth and breadth, leadership principles, and behavioral aspects.

Career coaching

I have coached over 20 individuals, focusing on career path growth, promotion documentation, technical artifact development, and management. My mentees have successfully achieved promotions or secured external job offers within 6-12 months.

Other services:

Resume review

Grow at work

Leadership coaching

Mentorship

Search:

Apr 15, 2025

Rita · Data scientist

Interview coaching · General discussion

Sergey is the best coach I ever worked with. He not only arrived on time without any issue, but also are professional about all kinds of questions regarding the interview. Under his help, I am much more clear about everything, can make better preparations too. Thanks Sergey, I will definitely rebook with Sergey if I can get the next round of interview. Sergey won my 100% satisfactions and I will recommendation him to friends

Rita got an offer at

Amazon

Feb 24, 2025

Hande

Career coaching

This was the most informative, helpful session I could imagine. Sergey offered advice in all levels, from what are the reasonable next steps for my career, to how recruiters make use of information in my CV. I am as grateful about his high level advice of next career steps, which made all the sense to me, to his answering all my technical level questions on how to prepare a CV and how to optimize my strategy for applications. Could not be more useful, I highly recommend, and will book further sessions myself.

Hande got an offer at

Common Crawl

Sep 06, 2024

Daniel

Career coaching

Daniel got two offers

Doctolib

Uber

Nov 24, 2024

Ernest · Machine learning engineer

Interview coaching · System design mock interview

Apart from the mock test, Sergey was very helpful at narrowing down the likely scope of my upcoming interview and the motivations of the hiring manager.

Jun 17, 2024

Nathan · Machine learning engineer

Interview coaching · General discussion

Sergey’s coaching services are indispensable. The value-add that he delivered in our short one-hour session was by far the most helpful feedback I’ve received, minute-for-minute, in my professional search. Not only was he able to provide a detailed and exclusive peek into the company’s hiring processes, but he was also able to expertly tailor his perspective to my background and desired professional trajectory. I would highly recommend Sergey as a coach and professional mentor.